Robert James Metcalfe Blog | WordPress site (Copyright © rjmprogramming.com.au 2015 All rights reserved.)

Walking Trip …

Posted on February 23, 2013 by admin

Walking Trip

📅

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Posted in Photography, Trips | Tagged one image website, photography, trips | 34 Comments

Google Chart Image Chart Dynamic Icons Tutorial

Posted on December 9, 2023 by admin

Google Chart Image Chart Dynamic Icons Tutorial

Does statistics have to be staid and boring? Kitch and quiche?! Welcome to the wooorrrlllddd of Google Charts Image Chart Dynamic Icons!

Think of Dynamic Icons as a way to decorate one or more data points displayed in one of …

Line Chart
Bar Chart
Map Chart
Radar Chart

We had that certain “Wow^!“ factor going as we remembered our state’s motto from some years back, and we tried out the Map Chart to see whether we could embellish the map with a Dynamic Icon relevant to New South Wales, as you can see with today’s tutorial picture.

We’ll show you the most recent snapshot of Javascript parameters a little later, but the change for this is an optional one up to the user to work out, with prompts such as the Map Chart one updated …

Enter vertical bar separated country ISO Country and/or Region Code list. Please note that optional Dynamic Icons are available via a suffixing string example applied to the second data point such as &chem=y;s=bubble_icon_text_small;d=ski,bb,NSW%20State%20of%20Wow!,FFFFFF;dp=1;ds=0 eg. AU-NT|AU-NSW|AU-SA|NZ|IN’

And here is its relevance in a new snapshot of parameterizations …

… further to yesterday’s Google Chart Image Chart Broadcast Talk Commentary Tutorial in the changed latest draft image_venn.html Google Chart Image Chart Venn Chart or Scatter Chart or GraphViz Chart or Pie Chart or Line Chart or Bar Chart or Candlestick/Box Chart or Google-O-Meter Chart or Radar Chart or Map Chart interfacing web application you can also try below.

Previous relevant Google Chart Image Chart Broadcast Talk Commentary Tutorial is shown below.

Google Chart Image Chart Broadcast Talk Commentary Tutorial

We’ll leave yesterday’s Google Chart Image Chart Radar Chart Tutorial angled text predilections for now, given we’ve got until Tuesday until tswhtf so to speak. Let’s today remedy the concern we had when we presented Google Chart Image Chart Broadcast Talk Context Tutorial regarding, the at the time new, “Broadcast Talk”, concept …

… even though it is only visual by nature, presented as an update image still presented and updated periodically. Go figure?!

… and offer a way to help the “Broadcast Talk” demonstrator “speak” during their demonstration, effectively. In so doing, we are going to add to …

the demonstrator’s visual inputs coming from that canvas annotator helper … with, today …
the demonstrator’s commentary, collected via an HTML textarea element (to optionally supplement the visuals) from that canvas annotator helper’s originator window (ie. the Google Charts Image Chart interfacing supervisor) … presented …

… via a new “middle of three slide” …

<?php
$uwidth=trim($uparts[$ioff - 2 + sizeof($uparts)]); $uheight=trim(explode('#',explode('?',$uparts[$ioff - 1 + sizeof($uparts)])[0])[0]); if (isset($_GET['canvcont']) && isset($_GET['uniquifier'])) { $uniquifier=str_replace('+',' ',urldecode($_GET['uniquifier'])); if (file_exists($_SERVER['DOCUMENT_ROOT'] . DIRECTORY_SEPARATOR . "presentation__" . $uniquifier . ".png")) { $im = imagecreatefromstring(file_get_contents($_SERVER['DOCUMENT_ROOT'] . DIRECTORY_SEPARATOR . "presentation__" . $uniquifier . ".png")); $white = imagecolorallocate($im, 255, 255, 255); $black = imagecolorallocate($im, 1, 1, 1); imagefilledrectangle($im, 0, 0, $uwidth, $uheight, $white); imagesavealpha($im, TRUE); try { if (function_exists('imagettftext')) { imagettftext($im, 12, 0, 20, 20, $black, realpath('arial.ttf'), str_replace('+',' ',urldecode($_GET['canvcont']))); } } catch (Exception $e) { } imagepng($im, $_SERVER['DOCUMENT_ROOT'] . DIRECTORY_SEPARATOR . "presentation__" . $uniquifier . ".png"); imagedestroy($im); exit; } exit; }
?>

… animated GIF (PHP 404.php helping) means of display in the viewer windows (off email invitation links they receive via the demonstrator) in the changed …

… latest draft image_venn.html Google Chart Image Chart Venn Chart or Scatter Chart or GraphViz Chart or Pie Chart or Line Chart or Bar Chart or Candlestick/Box Chart or Google-O-Meter Chart or Radar Chart or Map Chart interfacing web application you can also try below.

Previous relevant Google Chart Image Chart Radar Chart Tutorial is shown below.

Google Chart Image Chart Radar Chart Tutorial

Onto yesterday’s Google Chart Image Chart Box Chart Tutorial, today we have a two part stepping forward via new …

Radar Chart interfacing for Google Charts Image Chart … and …
first tentative steps towards, on non-mobile platforms, allowing for text placement rubber banding

Why the trepidation? Well, so far, when the text is angled we can’t understand what results we are getting back from a call to [element].getBoundingClientRect() just yet.

Why is this needed? Again, with the questions! Well, Mr De Niro, you see, well, somebody might want to go onto that more complex annotating.

And why would they do that? Sheesh. Well, Mr De Niro, sir, you see, sometimes things happen in life, and well, fingers slip on keyboards, and mice get awfullllly nervous around screens these days.

Yeh, well, show us the money, wiseguy. Who’s is that question? And what’s with the questions? Well, you see, Mr De Niro, the money is if we can get PHP text placement for text at an angle, where it rotates from the middle of the text, to get a similar positioning to good ol’ … pardon, Mr De Niro … good and well respected Javascript transform rotations … not with a triple pike, Mr De Niro, but you’re awfulllllly close, Mr De Niro, sir … rather, we throw in a couple of translations … no, not Latin, Mr De Niro … of co-ordinates, Mr De Niro.

And that will bring in how much by next Tuesday? Back to the questions? Why so many questions? We think it’s a pretty big money spinner, Mr De Niro, sir, and we think you should come back next Tuesday, and we can show you the ropes. Sweat, oozing from the brow, as Mr De Niro exits stage left.

And just while we have a few minutes, here’s the updated Javascript parameterization …

… that goes into helping make the changed latest draft image_venn.html Google Chart Image Chart Venn Chart or Scatter Chart or GraphViz Chart or Pie Chart or Line Chart or Bar Chart or Candlestick/Box Chart or Google-O-Meter Chart or Radar Chart or Map Chart interfacing web application you can also try below, have regular sleepovers on cloud nine.

Did you know?

Did you notice the inclusion of CSS styling …

? It styles an input type=number textbox where a placeholder is not really an option to explain a textbox’s purpose, and we do dislike set aside labels, these days. It’s also a way to explain the textbox for mobile users who do not get a hovering message to help. It’s also got an internationalization feel to it, using the degree sign emoji ° (ie. ° or that \u0080 UTF-16 Encoding style of definition suitable for CSS styling usage) to both associate the units we’d want, as well as that we are asking for an angle. Clockwise or anticlockwise, alas, comes down to user experience!

Previous relevant Google Chart Image Chart Box Chart Tutorial is shown below.

Google Chart Image Chart Box Chart Tutorial

Today we offer new …

Box Chart compound chart arrangements off the Google Charts Image Chart Bar Chart and Line Chart functionalties
Google-O-Meter Chart guage

… interfacings, onto the progress up to yesterday’s Google Chart Image Chart Colour Tutorial.

As such, it’s probably timely to update you with the parameterization up the top of the Javascript code …

… that goes into helping make the changed latest draft image_venn.html Google Chart Image Chart Venn Chart or Scatter Chart or GraphViz Chart or Pie Chart or Line Chart or Bar Chart or Candlestick/Box Chart or Google-O-Meter Chart or Map Chart interfacing web application you can also try below, one of the happiest little vegemites we know.

Previous relevant Google Chart Image Chart Colour Tutorial is shown below.

Google Chart Image Chart Colour Tutorial

Restricting you creatives to “inhouse annotations” of the “gray variety” might be seen as a bit boooorrrriiiinnnngggg! And so, onto the progress up to yesterday’s Google Chart Image Chart Rubber Banding Tutorial, today we’ve added a …

colour picker … way user can define an “inhouse annotations” colour … and while we were at it …
as far as text “inhouse annotations” go we’ve added a counterclockwise from the horizon, in degrees, way to define an angle the text should be placed at … and …
we’ve stopped closing off the text font size dropdown too early, allowing the user to mix it up with their annotations, and so …

We now recommend, for those users pushing the boundaries of functionality, to gather all their “inhouse annotations” together before any “graphical canvas annotations” are thought about.

Which begs the question …

Where do you get it?

Well, here, via … dare we say it?! … … via …

Mantissa Madness Monday

Both colour and degree counterclockwise angle became “Mantissa Madness Monday” tragics, a bit like moi, really?

How did we express these two measures?

colour can be derived at the 404.php end via mantissae that are 9 or more long where a number of the form rrrgggbbb is numerical and passed across to 404.php in the y co-ordinate mantissa … while … kind of crazily …
angle can be a set of zeros in the x co-ordinate mantissa represented by zero characters to the length of the angle from 1 to 359 in front of a pre-existant font size (in px) usage, from last “Mantissa Madness Monday” (us getting away with this because no font size should start with a zero)

Oh! We have such fun around here?! Below is PHP WordPress blog 404.php code …

<?php
// text placement $black = imagecolorallocatealpha($im, 1, 1, 1, 0); $blackish = imagecolorallocatealpha($im, 127, 127, 127, 64); $yis=$csv[1]; $mantissae=explode('.', ('' . $csv[1])); if (sizeof($mantissae) > 1) { if (strlen($mantissae[1]) >= 9) { $black = imagecolorallocatealpha($im, intval(substr($mantissae[1],0,3)), intval(substr(substr($mantissae[1],3),0,3)), intval(substr(substr($mantissae[1],6),0,3)), 0); $blackish = imagecolorallocatealpha($im, intval(substr($mantissae[1],0,3)), intval(substr(substr($mantissae[1],3),0,3)), intval(substr(substr($mantissae[1],6),0,3)), 64); } $yis=$mantissae[0]; } $za=0; $xis=$csv[0]; $mantissae=explode('.', ('' . $csv[0])); if (sizeof($mantissae) > 1) { if (substr($mantissae[1],0,1) == '0') { if (str_replace('0','',$mantissae[1]) != '') { while (substr($mantissae[1],0,1) == '0') { $za++; $mantiss=substr($mantissae[1],1); $mantissae[1]=$mantiss; } } } $tenpx=$mantissae[1]; $xis=$mantissae[0]; } try { if (function_exists('imagettftext')) { if (explode('' . $csv[0] . ',' . $csv[1] . ',', $plotstring)[1] !== '') { //echo explode('' . $csv[0] . ',' . $csv[1] . ',', $plotstring)[1]; //exit; imagettftext($im, $tenpx, $za, $xis, $yis, $black, realpath('arial.ttf'), explode('' . $csv[0] . ',' . $csv[1] . ',', $plotstring)[1]); } } } catch (Exception $e) { }
?>

… used by our changed latest draft image_venn.html Google Chart Image Chart Venn Chart or Scatter Chart or GraphViz Chart or Pie Chart or Line Chart or Bar Chart or Candlestick Chart or Map Chart interfacing web application you can also try below.

Previous relevant Google Chart Image Chart Rubber Banding Tutorial is shown below.

Google Chart Image Chart Rubber Banding Tutorial

The Javascript clientside idea of “Rubber Banding” …

Rubber banding is a popular technique of drawing geometric primitives such as line, polylines, rectangle, circle and ellipse on the computer screen.

… really appeals to our “inner programmer” … damn^! … come, thou, out into the open, reveal thyself^! … the sunshine is wonderful down here, and we’ve done away with death duties^! … mostly^! … but it is …

only really a non-mobile prospect …
function checkforaction(rubberbanding,nx,ny) { var bcbit='background-color:rgba(127,127,127,0.5);'; var zeroes=''; var classbit=''; var brbit=''; var ourdist=0; var ioff=(rubberbanding == true ? 1 : 0); var mone=1; curno=eval('' + xneeds.length); if (eval(ioff + curno) >= needtohave) { if (!rubberbanding) { document.getElementById('fauxdtext').innerHTML=''; } if (curmode == 8) { zeroes='00000000'; classbit=' class="crerect" '; } else if (curmode == -5) { //alert(1); bcbit='border:2px solid rgba(127,127,127,0.5);'; if (rubberbanding) { ourdist=eval(2.0 * Math.sqrt((nx - xneeds[0]) * (nx - xneeds[0]) + (ny - yneeds[0]) * (ny - yneeds[0]))); ourdist-=10; bcbit='border:2px solid gray;background-color:transparent;'; } else { ourdist=eval(2.0 * Math.sqrt((xneeds[1] - xneeds[0]) * (xneeds[1] - xneeds[0]) + (yneeds[1] - yneeds[0]) * (yneeds[1] - yneeds[0]))); } //alert(ourdist); //xneeds[1]=Math.floor('' + ourdist); //yneeds[1]=xneeds[1]; brbit='border-radius:' + Math.floor(eval(ourdist / 2)) + 'px;'; zeroes='00000'; classbit=' class="ocirc" '; //alert('open circle'); } else if (curmode == 6) { if (rubberbanding) { ourdist=eval(2.0 * Math.sqrt((nx - xneeds[0]) * (nx - xneeds[0]) + (ny - yneeds[0]) * (ny - yneeds[0]))); ourdist-=10; } else { ourdist=eval(2.0 * Math.sqrt((xneeds[1] - xneeds[0]) * (xneeds[1] - xneeds[0]) + (yneeds[1] - yneeds[0]) * (yneeds[1] - yneeds[0]))); } //xneeds[1]=Math.floor('' + ourdist); //yneeds[1]=xneeds[1]; brbit='border-radius:' + Math.floor(eval(ourdist / 2)) + 'px;'; //bcbit='border:2px solid rgba(127,127,127,0.5);'; zeroes='000000'; classbit=' class="ccirc" '; //alert('closed circle ' + bcbit); } else if (curmode == -4) { if (rubberbanding) { mone=0.90; bcbit='border:2px solid gray;background-color:transparent;'; } else { bcbit='border:2px solid rgba(127,127,127,0.5);'; } zeroes='00'; classbit=' class="orect" '; } else if (curmode == 2) { zeroes='0'; if (rubberbanding) { if (Math.min(xneeds[0],nx) == xneeds[0] && Math.min(yneeds[0],ny) == ny) { // thanks to https://stackoverflow.com/questions/18012420/draw-diagonal-lines-in-div-background-with-css classbit=' class="crossedtotl" '; } else if (Math.min(xneeds[0],nx) == nx && Math.min(yneeds[0],ny) == yneeds[0]) { // thanks to https://stackoverflow.com/questions/18012420/draw-diagonal-lines-in-div-background-with-css classbit=' class="crossedtotl" '; } else { classbit=' class="crossedtotr" '; } } else { if (Math.min(xneeds[0],xneeds[1]) == xneeds[0] && Math.min(yneeds[0],yneeds[1]) == yneeds[1]) { // thanks to https://stackoverflow.com/questions/18012420/draw-diagonal-lines-in-div-background-with-css classbit=' class="crossedtotl" '; } else if (Math.min(xneeds[0],xneeds[1]) == xneeds[1] && Math.min(yneeds[0],yneeds[1]) == yneeds[0]) { // thanks to https://stackoverflow.com/questions/18012420/draw-diagonal-lines-in-div-background-with-css classbit=' class="crossedtotl" '; } else { classbit=' class="crossedtotr" '; } } bcbit=''; } else if (curmode == 4) { if (rubberbanding) { mone=0.90; } zeroes='0000'; classbit=' class="crect" '; } if (!rubberbanding) { curno=-1; //if (brbit != '') { //document.getElementById('dtext').innerHTML+='<div' + classbit + ' style="' + brbit + 'position:absolute;left:' + Math.min(xneeds[0],nx) + 'px;top:' + Math.min(yneeds[0],ny) + 'px;width:' + Math.abs(xneeds[0] - nx) + 'px;height:' + Math.abs(yneeds[0] - ny) + 'px;z-index:98;' + bcbit + '"></div>'; //} else { //document.getElementById('dtext').innerHTML+='<div' + classbit + ' style="' + brbit + 'position:absolute;left:' + Math.min(xneeds[0],xneeds[1]) + 'px;top:' + Math.min(yneeds[0],yneeds[1]) + 'px;width:' + Math.abs(xneeds[0] - xneeds[1]) + 'px;height:' + Math.abs(yneeds[0] - yneeds[1]) + 'px;z-index:98;' + bcbit + '"></div>'; //} document.getElementById('aemail').href+='&text' + textnum + '=' + encodeURIComponent('' + xneeds[0] + '.' + zeroes + xneeds[1] + ',' + yneeds[0] + '.' + yneeds[1] + ',') + ''; document.getElementById('asms').href+='&text' + textnum + '=' + encodeURIComponent('' + xneeds[0] + '.' + zeroes + xneeds[1] + ',' + yneeds[0] + '.' + yneeds[1] + ',') + ''; aemailurl+='&text' + textnum + '=' + encodeURIComponent('' + xneeds[0] + '.' + zeroes + xneeds[1] + ',' + yneeds[0] + '.' + yneeds[1] + ',') + ''; asmsurl+='&text' + textnum + '=' + encodeURIComponent('' + xneeds[0] + '.' + zeroes + xneeds[1] + ',' + yneeds[0] + '.' + yneeds[1] + ',') + ''; arest+='&text' + textnum + '=' + encodeURIComponent('' + xneeds[0] + '.' + zeroes + xneeds[1] + ',' + yneeds[0] + '.' + yneeds[1] + ',') + ''; } if (brbit != '') { //alert('brbit=' + brbit); //xneeds[0]-=(xneeds[1] - xneeds[0]); //yneeds[0]-=(yneeds[1] - yneeds[0]); //alert('xneeds[0]=' + xneeds[0]); if (rubberbanding) { document.getElementById('fauxdtext').innerHTML='<div' + classbit + ' style="' + brbit + 'z-index:-89;position:absolute;left:' + Math.floor(eval(Math.min(xneeds[0],xneeds[0]) - ourdist / 2)) + 'px;top:' + Math.floor(eval(Math.min(yneeds[0],yneeds[0]) - ourdist / 2)) + 'px;width:' + ourdist + 'px;height:' + ourdist + 'px;z-index:98;' + bcbit + '"></div>'; } else { document.getElementById('dtext').innerHTML+='<div' + classbit + ' style="' + brbit + 'position:absolute;left:' + Math.floor(eval(Math.min(xneeds[0],xneeds[0]) - ourdist / 2)) + 'px;top:' + Math.floor(eval(Math.min(yneeds[0],yneeds[0]) - ourdist / 2)) + 'px;width:' + ourdist + 'px;height:' + ourdist + 'px;z-index:98;' + bcbit + '"></div>'; } } else { if (rubberbanding) { document.getElementById('fauxdtext').innerHTML='<div' + classbit + ' style="' + brbit + 'z-index:-89;position:absolute;left:' + Math.min(xneeds[0],nx) + 'px;top:' + Math.min(yneeds[0],ny) + 'px;width:' + Math.max(Math.floor(eval(-30 + Math.abs(xneeds[0] - nx))),Math.floor(eval(mone * Math.abs(xneeds[0] - nx)))) + 'px;height:' + Math.max(Math.floor(eval(-30 + Math.abs(yneeds[0] - ny))),Math.floor(eval(mone * Math.abs(yneeds[0] - ny)))) + 'px;z-index:98;' + bcbit + '"></div>'; } else { document.getElementById('dtext').innerHTML+='<div' + classbit + ' style="' + brbit + 'position:absolute;left:' + Math.min(xneeds[0],xneeds[1]) + 'px;top:' + Math.min(yneeds[0],yneeds[1]) + 'px;width:' + Math.abs(xneeds[0] - xneeds[1]) + 'px;height:' + Math.abs(yneeds[0] - yneeds[1]) + 'px;z-index:98;' + bcbit + '"></div>'; } } if (!rubberbanding) { textnum++; xneeds=[]; yneeds=[]; //alert('arest=' + arest); document.getElementById('tdright').innerHTML=" <span id=spemail><a target=_blank href='mailto:?subject=My%20" + cencodename + "%20...%20best%20viewed%20in%20landscape%20...&body=" + encodeURIComponent((document.getElementById('myvenn').src + arest).replace((document.getElementById('myvenn').src + arest).split('?')[0].split('#')[0], document.URL.split('?')[0].split('#')[0])) + "' id=aemail title=Email>📧</a></span> <span id=spsms><a target=_blank onmouseover=\"if (smsee.length == 0 && origsmsurl.indexOf('sms:&') != -1) { smsee=prompt('Please enter SMS number to send to.', ''); if (smsee == null) { smsee=''; } else { origsmsurl=origsmsurl.replace('sms:&','sms:' + smsee + '&'); asmsurl=asmsurl.replace('sms:&','sms:' + smsee + '&'); this.href=asmsurl; } }\" ontouchstart=\"if (smsee.length == 0 && origsmsurl.indexOf('sms:&') != -1) { smsee=prompt('Please enter SMS number to send to.', ''); if (smsee == null) { smsee=''; } else { origsmsurl=origsmsurl.replace('sms:&','sms:' + smsee + '&'); asmsurl=asmsurl.replace('sms:&','sms:' + smsee + '&'); this.href=asmsurl; } }\" href='sms:&body=" + encodeURIComponent((document.getElementById('myvenn').src + arest).replace(document.getElementById('myvenn').src.split('?')[0].split('#')[0], document.URL.split('?')[0].split('#')[0])) + "' id=asms title=SMS>📟</a></span><br><br> <input title=\"\" onclick=\"event.stopPropagation();\" id=ilp onblur=\"waitfortwo(0); lasttext=this.value.replace(/\~\~/g, '<br>'); this.title=lasttext; if (!navigator.userAgent.match(/Android|BlackBerry|iPhone|iPad|iPod|Opera Mini|IEMobile/i)) { this.value=''; } this.placeholder='Click where you want ... ' + lasttext.replace(/\<br\>/g, String.fromCharCode(10)); mvp.setAttribute('content','initial-scale=1'); document.getElementById('myvenn').scrollIntoView();\" placeholder='Enter text and later click place for it on " + decodeURIComponent(cencodename) + " to left (line feed is ~~)' type=text style=width:500px; value=''></input>" + fszbit + "<br><br> <img id=line src='/MarkItUp/line.png' onclick=\"event.stopPropagation(); this.style.border='1px dotted red'; waitfortwo(2);\"></img> <img id=rectangle src='/MarkItUp/rectangle.png' onclick=\"event.stopPropagation(); this.style.border='1px dotted red'; waitfortwo(4);\"></img> <img id=orectangle src='/MarkItUp/orectangle.png' onclick=\"event.stopPropagation(); this.style.border='1px dotted red'; waitfortwo(-4);\"></img> <img id=circle src='/MarkItUp/circlefill.png' onclick=\"event.stopPropagation(); this.style.border='1px dotted red'; waitfortwo(6);\"></img> <img id=ocircle src='/MarkItUp/circle.png' onclick=\"event.stopPropagation(); this.style.border='1px dotted red'; waitfortwo(-5);\"></img> <button id=orerect onclick=\"event.stopPropagation(); this.style.border='1px dotted red'; waitfortwo(8);\" title=\"Zoom in on rectangle you define via two clicks\" style=display:none;>🔎</button>" + lastbit + atend; //alert(1); if (!navigator.userAgent.match(/Android|BlackBerry|iPhone|iPad|iPod|Opera Mini|IEMobile/i)) { document.getElementById('ilp').focus(); } document.getElementById('ilp').placeholder='Enter text and later click place for it on ' + decodeURIComponent(cencodename) + ' to left (line feed is ~~)'; } } else if (curmode == 2 && !rubberbanding) { document.getElementById('line').style.border='1px dashed yellow'; } else if (curmode == -4 && !rubberbanding) { document.getElementById('orectangle').style.border='1px dashed yellow'; } else if (curmode == 4 && !rubberbanding) { document.getElementById('rectangle').style.border='1px dashed yellow'; } else if (curmode == -5 && !rubberbanding) { document.getElementById('ocircle').style.border='1px dashed yellow'; } else if (curmode == 6 && !rubberbanding) { document.getElementById('circle').style.border='1px dashed yellow'; } else if (curmode == 8 && !rubberbanding) { document.getElementById('orerect').style.border='1px dashed yellow'; } } // Rubber banding document.body.addEventListener('mousemove', function(evt){ evt = evt || window.event; evt.preventDefault(); elemLeft = document.getElementById('myvenn').offsetLeft; elemTop = document.getElementById('myvenn').offsetTop; //document.getElementById('myh3').innerHTML+=' ' + elemLeft + ':' + elemTop; //document.getElementById('myh3').innerHTML+=' ' + document.body.scrollLeft + '.' + document.body.scrollTop; if (evt.touches) { if (evt.touches[0].pageX) { //alert('here'); xx = evt.touches[0].pageX + document.body.scrollLeft - elemLeft; yy = evt.touches[0].pageY + document.body.scrollTop - elemTop; if (xx >= 0 && xx <= eval(('' + document.getElementById('myvenn').width).replace('px','')) && yy >= 0 && yy <= eval(('' + document.getElementById('myvenn').height).replace('px',''))) { if (curno == 1 && (lastx != xx || lasty != yy)) { checkforaction(true,xx,yy); } //lastx=xx; //lasty=yy; //alert('x:' + x + ' and y:' + y); } } else { //alert('Here'); xx = evt.touches[0].clientX + document.body.scrollLeft - elemLeft; yy = evt.touches[0].clientY + document.body.scrollTop - elemTop; if (xx >= 0 && xx <= eval(('' + document.getElementById('myvenn').width).replace('px','')) && yy >= 0 && yy <= eval(('' + document.getElementById('myvenn').height).replace('px',''))) { if (curno == 1 && (lastx != xx || lasty != yy)) { checkforaction(true,xx,yy); } //lastx=xx; //lasty=yy; //alert('x:' + x + ' and y:' + y); } } } else if (evt.clientX || ev.clientY) { //alert('HERE'); xx = evt.clientX + document.body.scrollLeft - elemLeft; yy = evt.clientY + document.body.scrollTop - elemTop; if (xx >= 0 && xx <= eval(('' + document.getElementById('myvenn').width).replace('px','')) && yy >= 0 && yy <= eval(('' + document.getElementById('myvenn').height).replace('px',''))) { if (curno == 1 && (lastx != xx || lasty != yy)) { checkforaction(true,xx,yy); } //lastx=xx; //lasty=yy; } } else { //alert('HEre'); xx = evt.pageX + document.body.scrollLeft - elemLeft; yy = evt.pageY + document.body.scrollTop - elemTop; if (xx >= 0 && xx <= eval(('' + document.getElementById('myvenn').width).replace('px','')) && yy >= 0 && yy <= eval(('' + document.getElementById('myvenn').height).replace('px',''))) { if (curno == 1 && (lastx != xx || lasty != yy)) { checkforaction(true,xx,yy); } //lastx=xx; //lasty=yy; } } });
… at least for us (being as we do not want to clobber any pinch or spread gesture ideas, for the user)
is only a really, “nice to have” functionality idea

Even so, achieving even a 95% percent working “rubber band” is like … is like …

Barracking for Hairtie United …
You little beauty, Untied!

And so, further to yesterday’s Google Chart Image Chart Circle Annotation Tutorial we have this non-mobile “Rubber Banding” inhouse annotation functionality included in our changed latest draft image_venn.html Google Chart Image Chart Venn Chart or Scatter Chart or GraphViz Chart or Pie Chart or Line Chart or Bar Chart or Candlestick Chart or Map Chart interfacing web application you can also try below.

But there’s more! Despite how long out of the day it takes to barrack for Hairtie United, there was a mobile matter we resolved. A slide in today’s animated GIF presentation shows the issue. On mobile platforms, with these inhouse annotations, it would immediately show a tiny annotation. There panned out to be two event programming related issues we needed to fix related to this problem …

change looking for a “touchstart” event, and instead look for a “touchdown” event for a document.body scope (else we might have restricted the “scope” to just document.getEleementById(‘myvenn’) as another approach (and you should note our event.stopPropagation() statements in lots of places as another research point for you)) because we are talking “discrete click” user behaviour we are targeting … as well as …
start checking that the co-ordinates calculated fall into the range of the Google Charts Image Chart image dimensions … doh!

Did you know?

Well … we didn’t?! We happened to try the web application above on a tiny iPad and saw that HTML button elements with an innerHTML label containing a line feed ( ie. <br> ) only showed the top line, and, alas, for that button in question, the vital new information used to be on the second line. Hence our fix …

//document.getElementById('bshare').innerHTML='Repainting Top Left Image Periodically ... <br>Click here to Broadcast this session to other interested parties ...'; document.getElementById('bshare').innerHTML='Click here to Broadcast this session to other interested parties ...<br>Repainting Top Left Image Periodically ...';

Previous relevant Google Chart Image Chart Circle Annotation Tutorial is shown below.

Google Chart Image Chart Circle Annotation Tutorial

Today, we add …

open circle
filled circle

… annotation possibilities onto the “Broadcast Talk” work in yesterday’s Google Chart Image Chart Broadcast Talk Context Tutorial.

The CSS border-radius property has come to the rescue of many a programmer, saving us from resorting to SVG to display circle or ellipses or arcs of various sorts …

… to team up with WordPress blog 404.php changes …

<?php
if (strlen($zeroesbit) == 6) { // filled in circle if (sizeof($csv) == 3) { array_push($csv, $csv[2]); } else if (sizeof($csv) >= 4) { $dist=(2.0 * sqrt(($csv[0] - $csv[2]) * ($csv[0] - $csv[2]) + ($csv[1] - $csv[3]) * ($csv[1] - $csv[3]))); $csv[2]=$dist; $csv[3]=$dist; } imagefilledellipse($im, $csv[0], $csv[1], $csv[2], $csv[3], $blackish); } else if (strlen($zeroesbit) == 5) { // circle if (sizeof($csv) == 3) { array_push($csv, $csv[2]); } else if (sizeof($csv) >= 4) { $dist=(2.0 * sqrt(($csv[0] - $csv[2]) * ($csv[0] - $csv[2]) + ($csv[1] - $csv[3]) * ($csv[1] - $csv[3]))); $csv[2]=$dist; $csv[3]=$dist; } imageellipse($im, $csv[0], $csv[1], $csv[2], $csv[3], $black); }
?>

… with our changed ninth draft image_venn.html Google Chart Image Chart Venn Chart or Scatter Chart or GraphViz Chart or Pie Chart or Line Chart or Bar Chart or Candlestick Chart or Map Chart interfacing web application you can also try below.

Previous relevant Google Chart Image Chart Broadcast Talk Context Tutorial is shown below.

Google Chart Image Chart Broadcast Talk Context Tutorial

The progress, today, along the same lines as yesterday’s Google Chart Image Chart Broadcast Talk Tutorial‘s introduction of a “Broadcast Talk” functionality, was to …

improve “Broadcast Talk” context, by adding onto yesterday’s …

presented as an update image still presented and updated periodically

… only display option, with, as of today …
a presenter’s first snapshotted image retained for user display (in case they arrive late to the lesson … tutt tutt) … and …
ImageMagick created animated GIF with slides for just this first image and the most recent image, updated periodically, in bottom right cell of user display …
<?php
if (isset($_POST['canvcont']) && isset($_POST['uniquifier']) && strpos(('?' . $_SERVER['QUERY_STRING']), 'cht=') === false) { if (isset($_POST['uniquifier'])) { $uniquifier=str_replace('+',' ',urldecode($_POST['uniquifier'])); } if ($uniquifier == '') { $uniquifier='_' . rand(0,78654356); file_put_contents($_SERVER['DOCUMENT_ROOT'] . DIRECTORY_SEPARATOR . "presentation" . $uniquifier . ".png", base64_decode( explode('base64,', str_replace(' ','+',urldecode($_POST['canvcont'])))[1])); exec("/usr/local/cpanel/3rdparty/bin/convert -delay 20 -loop 0 " . $_SERVER['DOCUMENT_ROOT'] . DIRECTORY_SEPARATOR . "presentation" . $uniquifier . ".png" . " " . $_SERVER['DOCUMENT_ROOT'] . DIRECTORY_SEPARATOR . "presentation" . $uniquifier . ".gif"); echo "<html><body onload=\"if (parent.document.getElementById('uniquifier')) { if (parent.document.getElementById('uniquifier').value == '') { parent.document.getElementById('uniquifier').value='" . $uniquifier . "'; } }\"></body></html>"; } else { file_put_contents($_SERVER['DOCUMENT_ROOT'] . DIRECTORY_SEPARATOR . "presentation" . $uniquifier . ".png", base64_decode( explode('base64,', str_replace(' ','+',urldecode($_POST['canvcont'])))[1])); exec("rm -f " . $_SERVER['DOCUMENT_ROOT'] . DIRECTORY_SEPARATOR . "presentation" . $uniquifier . ".gif ; /usr/local/cpanel/3rdparty/bin/convert -delay 200 -loop 0 " . $_SERVER['DOCUMENT_ROOT'] . DIRECTORY_SEPARATOR . "presentation_" . $uniquifier . ".png " . $_SERVER['DOCUMENT_ROOT'] . DIRECTORY_SEPARATOR . "presentation" . $uniquifier . ".png" . " " . $_SERVER['DOCUMENT_ROOT'] . DIRECTORY_SEPARATOR . "presentation" . $uniquifier . ".gif"); } exit; }
?>
… and …
images saved as changes are detected gathered, as ever smaller thumbnails, in the top right of four table cells of the user display …
var iijk=0, uniquif=''; snapshots=[], elem=null, elemcontext=null, oimg=null, checkforsquare=2; function canvinit() { var kkii=0, wpx=0, hpx=0; var tdr=document.getElementById('tdtr').getBoundingClientRect(); wpx=eval('' + tdr.width); hpx=eval('' + tdr.height); elem=document.getElementById('agcanvas'); elemcontext=elem.getContext('2d'); elem.width=elem.width; elemcontext.drawImage(document.getElementById('talkimg'),0,0); if (iijk == 0 || ('' + document.getElementById('tdtr').style.backgroundImage).indexOf('rand=0') != -1) { //alert('89 ' + elem.toDataURL().length); //snapshots.push(elem.toDataURL()); iijk=eval(-1 + eval('' + ('' + document.getElementById('tdtr').style.backgroundImage).split('),').length)); document.getElementById('tdtr').style.backgroundImage=('' + document.getElementById('tdtr').style.backgroundImage).replace(('' + document.getElementById('tdtr').style.backgroundImage).split('),')[iijk], '' + 'url(' + elem.toDataURL() + '),' + ('' + document.getElementById('tdtr').style.backgroundImage).split('),')[iijk]).replace('rand=0', 'rand=x'); iijk=eval(0 + eval('' + ('' + document.getElementById('tdtr').style.backgroundImage).split('),').length)); setInterval(canvinit, 9000); } else { elem.width=elem.width; elemcontext.drawImage(document.getElementById('talkimg'),0,0); if (document.body.innerHTML.indexOf(elem.toDataURL()) == -1) { //snapshots.push(elem.toDataURL()); iijk=eval(-1 + eval('' + ('' + document.getElementById('tdtr').style.backgroundImage).split('),').length)); document.getElementById('tdtr').style.backgroundImage=('' + document.getElementById('tdtr').style.backgroundImage).replace(('' + document.getElementById('tdtr').style.backgroundImage).split('),')[iijk], '' + 'url(' + elem.toDataURL() + '),' + ('' + document.getElementById('tdtr').style.backgroundImage).split('),')[iijk]).replace('rand=x','rand=x' + Math.floor(Math.random() * 9)); iijk=eval(0 + eval('' + ('' + document.getElementById('tdtr').style.backgroundImage).split('),').length)); } } var bpx='background-position:;'; var bbpx='background-position:;'; var bsx='background-size:;'; var brx='background-repeat:;'; var xstart=0; var ystart=0; var xxstart=eval('' + tdr.left); var yystart=eval('' + tdr.top); if (iijk > eval(checkforsquare * checkforsquare)) { checkforsquare++; } for (kkii=1; kkii<=iijk; kkii++) { if (bsx.indexOf(':;') != -1) { bsx=bsx.replace(':;', ':' + Math.round(eval(wpx / checkforsquare)) + 'px ' + Math.round(eval(hpx /checkforsquare)) + 'px;'); brx=brx.replace(':;', ':no-repeat;'); bpx=bpx.replace(':;', ':' + Math.round(xstart) + 'px ' + Math.round(ystart) + 'px;'); bbpx=bbpx.replace(':;', ':' + Math.round(xxstart) + 'px ' + Math.round(yystart) + 'px;'); } else { bsx=bsx.replace(';', ',' + Math.round(eval(wpx / checkforsquare)) + 'px ' + Math.round(eval(hpx /checkforsquare)) + 'px;'); brx=brx.replace(';', ',no-repeat;'); bpx=bpx.replace(';', ',' + Math.round(xstart) + 'px ' + Math.round(ystart) + 'px;'); bbpx=bbpx.replace(';', ',' + Math.round(xxstart) + 'px ' + Math.round(yystart) + 'px;'); } if (eval(kkii % checkforsquare) == 0) { xstart=0; xxstart=eval('' + tdr.left); ystart+=eval(hpx / checkforsquare); yystart+=eval(hpx / checkforsquare); } else { xstart+=eval(wpx / checkforsquare); xxstart+=eval(wpx / checkforsquare); } } //alert('iijk=' + iijk + ' ' + bbpx + ' ' + bpx + ' ' + bsx + ' ' + brx); document.getElementById('tdtr').style.backgroundRepeat=brx.split(':')[1]; document.getElementById('tdtr').style.backgroundSize=bsx.split(':')[1]; document.getElementById('tdtr').style.backgroundPosition=bpx.split(':')[1]; //document.body.style.backgroundImage=('' + document.getElementById('tdtr').style.backgroundImage); //document.body.style.backgroundRepeat=brx.split(':')[1]; //document.body.style.backgroundSize=bsx.split(':')[1]; document.body.style.backgroundPosition=bbpx.split(':')[1]; var kdss=bsx.split(':')[1].replace(/\;/g,'').split(','); var idss=bbpx.split(':')[1].replace(/\;/g,'').split(','); var jdss=(('' + document.getElementById('tdtr').style.backgroundImage) + ',').replace(';,',',').replace(/url\(/g,'').replace(/URL\(/g,'').replace(/\&quot\;/g,'').replace(/\"/g,'').split('),'); document.getElementById('idiv').innerHTML=''; var istuff='', laststuff=''; for (var iop=0; iop<idss.length; iop++) { //while (istuff == laststuff) { if (('' + jdss[iop]) != 'undefined' && ('' + jdss[iop]).trim() != '') { if (jdss[iop].trim().indexOf('iVBOR') != -1) { istuff+='<img style="position:absolute;width:' + kdss[iop].split(' ')[0] + ';height:' + kdss[iop].split(' ')[1] + ';left:' + idss[iop].split(' ')[0] + ';top:' + idss[iop].split(' ')[1] + ';" src="data:image/png;base64,iVBOR' + jdss[iop].trim().split('iVBOR')[1] + '"></img>'; } else if (jdss[iop].trim() .indexOf('//') != -1) { istuff+='<img style="position:absolute;width:' + kdss[iop].split(' ')[0] + ';height:' + kdss[iop].split(' ')[1] + ';left:' + idss[iop].split(' ')[0] + ';top:' + idss[iop].split(' ')[1] + ';" src="' + jdss[iop].trim() + '"></img>'; } //} laststuff=istuff; } } document.getElementById('idiv').innerHTML=istuff; }

We hope you try new functionality in our changed eigth draft image_venn.html Google Chart Image Chart Venn Chart or Scatter Chart or GraphViz Chart or Pie Chart or Line Chart or Bar Chart or Candlestick Chart or Map Chart interfacing web application you can also try below.

Previous relevant Google Chart Image Chart Broadcast Talk Tutorial is shown below.

Google Chart Image Chart Broadcast Talk Tutorial

Onto yesterday’s Google Chart Image Chart Statistical Charts Tutorial progress we want to offer …

once a user has that “More Annotation” annotating happening … offer the chance to …
Broadcast … their work as it happens, dynamically …
to an emailee list audience

… and we’re calling this …

Broadcast Talk

… even though it is only visual by nature, presented as an update image still presented and updated periodically. Go figure?! We’re blaming that supper time two back. We’re not sure?!

Anyway, we hope you try out the new arrangements in our changed seventh draft image_venn.html Google Chart Image Chart Venn Chart or Scatter Chart or GraphViz Chart or Pie Chart or Line Chart or Bar Chart or Candlestick Chart or Map Chart interfacing web application you can also try below, and helped out by a WordPress blog good ol’ TwentyTen theme 404.php which now includes …

<?php
if (isset($_POST['canvcont']) && isset($_POST['uniquifier']) && strpos(('?' . $_SERVER['QUERY_STRING']), 'cht=') === false) { if (isset($_POST['uniquifier'])) { $uniquifier=str_replace('+',' ',urldecode($_POST['uniquifier'])); } if ($uniquifier == '') { $uniquifier='_' . rand(0,78654356); file_put_contents($_SERVER['DOCUMENT_ROOT'] . DIRECTORY_SEPARATOR . "presentation" . $uniquifier . ".png", base64_decode( explode('base64,', str_replace(' ','+',urldecode($_POST['canvcont'])))[1])); echo "<html><body onload=\"if (parent.document.getElementById('uniquifier')) { if (parent.document.getElementById('uniquifier').value == '') { parent.document.getElementById('uniquifier').value='" . $uniquifier . "'; } }\"></body></html>"; } else { file_put_contents($_SERVER['DOCUMENT_ROOT'] . DIRECTORY_SEPARATOR . "presentation" . $uniquifier . ".png", base64_decode( explode('base64,', str_replace(' ','+',urldecode($_POST['canvcont'])))[1])); } exit; }
?>

… featuring our first use of this 404.php in response to a method=POST form call. Verrrrrryyyy interesting!

Previous relevant Google Chart Image Chart Statistical Charts Tutorial is shown below.

Google Chart Image Chart Statistical Charts Tutorial

Further to yesterday’s Google Chart Image Chart Pie Chart Tutorial, today, we embark on our first ventures into composite charts, along what we like to think of as “statistical lines”, regarding interfacing to Google Charts Image Chart …

Line Chart … with its three display options …
1. Even
2. Sparkline
3. Just XY
Bar Chart … with its three display options …
1. Grouped
2. Stacked
3. Overlapped
Candlestick Chart

… the latter being like a “parasite” display idea off the more conventional Statistical Graph favourites, the Line Chart and Bar Chart, where you have a relationship between a numerical concept (eg. sales) and another type of concept (eg. month of the year), and you want to present the data in a graphical form.

Again, we haven’t stopped our “retweaking”. We might “retweak” in the morning or we might “retweak” over a coffee break or we might “retweak” at supper time, but the end result is, well, you’re reading it now!

And yes, you can, and we did, put line feeds into those ternery statements to help with their readability as we add complexity to the parameterization, as we go along, in our changed sixth draft image_venn.html Google Chart Image Chart Venn Chart or Scatter Chart or GraphViz Chart or Pie Chart or Line Chart or Bar Chart or Candlestick Chart interfacing web application you can also try below.

Previous relevant Google Chart Image Chart Pie Chart Tutorial is shown below.

Google Chart Image Chart Pie Chart Tutorial

As we intimated in yesterday’s Google Chart Image Chart GraphViz Chart Tutorial …

start with an at least two part “inhouse phase” of additional “extra to text” annotation functionality possibilities …

… we would return! And so, here thou lingers. It’s “part two” day, even bigger than “Ben Hur” in certain outback towns we’re a little bit shy to divulge until we get to know our readers that little bit better.

Yes, we are dovetailing with work we’ve done in the past using the excellent …

canvas … element introduced with HTML5 … whereby …
annotations like …
1. scribble … as the default, and various other …
2. discrete click shapes … and …
3. text … including emojis … and …
4. image
… annotating modus operandi

… can be part of the arrangements. It works that the Annotation Helper is opened …

in a new “known about” popup window … looking out for …
parent based “img” element (in the modus operandi we use, calling it, regarding the parent top left image) … so as to be able to …
populate its canvas element with a clone of that calling “img” graphical content … but add into the mix …
menu driven annotation functionality which can change that canvas look and underlying data … and …
the caller can keep track of this and arrange, or not, for these changes to be reflected back at its top left “img” element … the catch being …
the “within range of GET argument” limits are ruined by this introduction of graphical data, and so in agreeing to this, a user forgoes those simpler sharing and annotating functionalities of yesterday’s (and before) work … though your normal image sharing capabilities via the web browser remain in the caller and the called

As well, today, we are introducing new Google Charts Image Chart Pie Chart interfacing, and because this chart type can have the three …

Normal
3D
Concentric

… guises, there was some work to keep us off this street (okay … so we divulged … again) …

Please acquaint yourself with these new annotating features in our changed fifth draft image_venn.html Google Chart Image Chart Venn Chart or Scatter Chart or GraphViz Chart or Pie Chart interfacing web application you can also try below.

Previous relevant Google Chart Image Chart GraphViz Chart Tutorial is shown below.

Google Chart Image Chart GraphViz Chart Tutorial

Today we have two strands of forward progress, onto the progress up to yesterday’s Google Chart Image Chart Scatter Chart Tutorial, they being …

establish a new interfacing to GraphViz Chart …

GraphViz is a package of open source tools for visualizing connectivity graphs. You can create GraphViz graphs using the DOT language and your choice of layout engines.

… a chart looking a bit like Organization Charts …

Org charts are diagrams of a hierarchy of nodes, commonly used to portray superior/subordinate relationships in an organization. A family tree is a type of org chart.
start with an at least two part “inhouse phase” of additional “extra to text” annotation functionality possibilities … just starting with …
1. line
2. open rectangle
3. filled rectangle

… additional functionality, that we may well add to, but being as we feel a change we’ll leave that for another time.

The WordPress blog “404.php” code snippet becomes …

<?php
if (strpos(('?' . $_SERVER['QUERY_STRING']), '?cht=') !== false || strpos(('?' . $_SERVER['QUERY_STRING']), '&cht=') !== false) { $theqs=str_replace('??','?',('?' . $_SERVER['QUERY_STRING'])); if (strpos($theqs, '?chs=') === false && strpos($theqs, '&chs=') === false) { $theqs='?chs=' . $newWidth . 'x' . $newHeight . '&' . explode('?', $theqs)[1]; } if (strpos(('?' . $_SERVER['QUERY_STRING']), 'text1=') !== false) { $theone=2; $im = imagecreatefromstring(file_get_contents('//chart.googleapis.com/chart' . explode('&text1=', $theqs)[0])); if (7 == 7) { $plotstring=str_replace('+',' ',urldecode($_GET['text1'])); $csv=explode(',', $plotstring); $black = imagecolorallocatealpha($im, 1, 1, 1, 0); $blackish = imagecolorallocatealpha($im, 127, 127, 127, 64); if (sizeof($csv) >= 3) { if (trim($csv[2]) == '') { // non text annotations $zeroesbit=''; $izeroes=0; $xmantissae=explode('.', ('' . $csv[0])); if (sizeof($xmantissae) > 1) { $csv[0]=$xmantissae[0]; while (substr($xmantissae[1],0,1) == '0') { $zeroesbit.='0'; $xmantissae[1]=substr($xmantissae[1],1); } $csv[2]=$xmantissae[1]; } $ymantissae=explode('.', ('' . $csv[1])); if (sizeof($ymantissae) > 1) { $csv[1]=$ymantissae[0]; if (sizeof($csv) > 3) { $csv[3]=$ymantissae[1]; } else { array_push($csv, $ymantissae[1]); } } if (strlen($zeroesbit) == 4) { // filled in rectangle imagefilledrectangle($im, $csv[0], $csv[1], $csv[2], $csv[3], $blackish); } else if (strlen($zeroesbit) == 2) { // rectangle imagerectangle($im, $csv[0], $csv[1], $csv[2], $csv[3], $black); } else if (strlen($zeroesbit) == 1) { // line imageline($im, $csv[0], $csv[1], $csv[2], $csv[3], $black); } } else { // text placement $xis=$csv[0]; $mantissae=explode('.', ('' . $csv[0])); if (sizeof($mantissae) > 1) { $tenpx=$mantissae[1]; $xis=$mantissae[0]; } try { if (function_exists('imagettftext')) { if (explode('' . $csv[0] . ',' . $csv[1] . ',', $plotstring)[1] !== '') { //echo explode('' . $csv[0] . ',' . $csv[1] . ',', $plotstring)[1]; //exit; imagettftext($im, $tenpx, 0, $xis, $csv[1], $black, realpath('arial.ttf'), explode('' . $csv[0] . ',' . $csv[1] . ',', $plotstring)[1]); } } } catch (Exception $e) { } } while (isset($_GET['text' . $theone])) { $plotstring=str_replace('+',' ',urldecode($_GET['text' . $theone])); $csv=explode(',', $plotstring); if (sizeof($csv) >= 3) { if (trim($csv[2]) == '') { // non text annotations $zeroesbit=''; $izeroes=0; $xmantissae=explode('.', ('' . $csv[0])); if (sizeof($xmantissae) > 1) { $csv[0]=$xmantissae[0]; while (substr($xmantissae[1],0,1) == '0') { $zeroesbit.='0'; $xmantissae[1]=substr($xmantissae[1],1); } $csv[2]=$xmantissae[1]; } $ymantissae=explode('.', ('' . $csv[1])); if (sizeof($ymantissae) > 1) { $csv[1]=$ymantissae[0]; if (sizeof($csv) > 3) { $csv[3]=$ymantissae[1]; } else { array_push($csv, $ymantissae[1]); } } if (strlen($zeroesbit) == 4) { // filled in rectangle imagefilledrectangle($im, $csv[0], $csv[1], $csv[2], $csv[3], $blackish); } else if (strlen($zeroesbit) == 2) { // rectangle imagerectangle($im, $csv[0], $csv[1], $csv[2], $csv[3], $black); } else if (strlen($zeroesbit) == 1) { // line imageline($im, $csv[0], $csv[1], $csv[2], $csv[3], $black); } } else { // text placement try { $xis=$csv[0]; $mantissae=explode('.', ('' . $csv[0])); if (sizeof($mantissae) > 1) { $tenpx=$mantissae[1]; $xis=$mantissae[0]; } if (function_exists('imagettftext')) { if (explode('' . $csv[0] . ',' . $csv[1] . ',', $plotstring)[1] !== '') { imagettftext($im, $tenpx, 0, $xis, $csv[1], $black, realpath('arial.ttf'), explode('' . $csv[0] . ',' . $csv[1] . ',', $plotstring)[1]); } } } catch (Exception $e) { } } $theone++; } } //} } } header('Content-Type: image/png'); imagepng($im); imagedestroy($im); } else { header('Content-Type: image/png'); echo file_get_contents('//chart.googleapis.com/chart' . $theqs); } exit; }
?>

… utilizing that good ol’ PHP GD image library.

We hope you enjoy the …

Mantissa Madness Monday

… coding feel utilized to retain yesterday’s …

&text_n=x,y,Text

… argument snippet basis, adding “x” and “y” mantissa arrangement smarts with a “nothing” Text in our changed fourth draft image_venn.html Google Chart Image Chart Venn Chart or Scatter Chart or GraphViz Chart interfacing web application you can also try below.

Did you know?

Would you believe, at least to us, it is far less obvious how to display a straight line (that is perhaps not horizontal nor vertical) within a webpage, than it is to display a rectangle, filled or not?! Talk about irony! Over time, we have developed …

HTML hr elements (with a rotation) … and the less kludgy …
HTML div (defining a box with defined dimensions) for a nested SVG element containing the line definition using percentage dimensions

… in the past, for when we needed to do this. But, today, we’d like to thank this great webpage for its suggestion to involve linear gradients …

<style> .crossedtotl { background: linear-gradient(to top left, rgba(0,0,0,0) 0%, rgba(0,0,0,0) calc(50% - 0.8px), rgba(0,0,0,1) 50%, rgba(0,0,0,0) calc(50% + 0.8px), rgba(0,0,0,0) 100%); } .crossedtotr { background: linear-gradient(to top right, rgba(0,0,0,0) 0%, rgba(0,0,0,0) calc(50% - 0.8px), rgba(0,0,0,1) 50%, rgba(0,0,0,0) calc(50% + 0.8px), rgba(0,0,0,0) 100%); } </style>

… in a, basically, CSS solution. Great stuff, thanks!

Previous relevant Google Chart Image Chart Scatter Chart Tutorial is shown below.

Google Chart Image Chart Scatter Chart Tutorial

Today, we bring the Google Charts Image Chart …

Venn Chart interfacing knowledge via yesterday’s Google Chart Image Chart Venn Chart User Text Tutorial … using it to encase some …
Scatter Chart interfacing logic … and along the way fix …
mobile platform User Text issues

… making distributing “Venn Chart” hardcodings into a dropdown selectable arrangement, because there are more commonalities than differences, really, and we do like to parameterize … even in the shower, with a fairly loud rendition of this, perhaps.

Here is our framework for parameterization, here, and into the future …

<title>Interfacing to Google Charts Image Chart Venn Chart or Scatter Chart - RJM Programming - November, 2023</title> <script type=text/javascript> var cht=location.search.split('cht=')[1] ? decodeURIComponent(location.search.split('cht=')[1].split('&')[0]) : "v"; var ctype=location.search.split('type=')[1] ? decodeURIComponent(location.search.split('type=')[1].split('&')[0]) : cht; var cname=(ctype == 'v' ? 'Venn Chart' : (ctype == 's' ? 'Scatter Chart' : '')); var cencodename=(ctype == 'v' ? 'Venn%20Diagram' : (ctype == 's' ? 'Scatter%20Chart' : '')); var prenchtt=(ctype == 'v' ? '100,80,60,30,30,30,10' : (ctype == 's' ? '12,87,75,41,23,96,68,71,34,9|98,60,27,34,56,79,58,74,18,76|84,23,69,81,47,94,60,93,64,54' : '')); var preachtt=(ctype == 'v' ? 'A|B|C' : (ctype == 's' ? 'Cats|Dogs' : '')); var prechtt=(ctype == 'v' ? '&chd=t:' + prenchtt + '&chdl=' + preachtt : (ctype == 's' ? '&chd=t:' + prenchtt + '&chdl=' + preachtt + '&chxt=x,y' : '')); var defchco=(ctype == 'v' ? 'ff0000,00ff00,0000ff' : (ctype == 's' ? 'FF0000|0000FF&chxt=x,y' : '')); var promptone=(ctype == 'v' ? "Enter delimited values string for Venn Diagram such that ... " + String.fromCharCode(10) + "The first three values specify the sizes of three circles: A, B, & C. For chart with only two circles, specify zero for the third value." + String.fromCharCode(10) + "The fourth value specifies the size of the intersection of A and B." + String.fromCharCode(10) + "The fifth value specifies the size of the intersection of A and C. For a chart with only two circles, do not specify a value here." + String.fromCharCode(10) + "The sixth value specifies the size of the intersection of B and C. For a chart with only two circles, do not specify a value here." + String.fromCharCode(10) + "The seventh value specifies the size of the common intersection of A, B, and C. For a chart with only two circles, do not specify a value here." + String.fromCharCode(10) + String.fromCharCode(10) + "" : (ctype == 's' ? "Enter delimited values string for Scatter Chart" : "")); var oneprompt=(ctype == 'v' ? "Enter delimited values string for your Venn Diagram collaborations, optionally, such that ... " + String.fromCharCode(10) + "The first three values specify the sizes of three circles: A, B, & C. For chart with only two circles, specify zero for the third value." + String.fromCharCode(10) + "The fourth value specifies the size of the intersection of A and B." + String.fromCharCode(10) + "The fifth value specifies the size of the intersection of A and C. For a chart with only two circles, do not specify a value here." + String.fromCharCode(10) + "The sixth value specifies the size of the intersection of B and C. For a chart with only two circles, do not specify a value here." + String.fromCharCode(10) + "The seventh value specifies the size of the common intersection of A, B, and C. For a chart with only two circles, do not specify a value here." + String.fromCharCode(10) + String.fromCharCode(10) + "" : (ctype == 's' ? "Enter delimited values string for Scatter Chart" : "")); // etcetera etcetera etcetera

… but, as you can imagine, there will probably be small retweaks of this arrangement, which is holding out okay so far for Scatter Charts in our changed third draft image_venn.html Google Chart Image Chart Venn Chart or Scatter Chart interfacing web application you can also try below.

Did you know?

In this online world with so many platforms and devices and software choices, there is no need to ever be embarrassed by what might seem an obvious feature you’ve missed.

Take the way on macOS, but not iOS, using a web browser to get to YouTube, you can flag that a video should loop. Especially good for …

song obsessions …
earworms you need to salve

… and what about if your shower is taking an awfully long time?! Please be careful with moisture and devices, though, in the bathroom!

How does it happen? Right click the play button, and looping is there as the top option. Now back to that shower song obsession.

Previous relevant Google Chart Image Chart Venn Chart User Text Tutorial is shown below.

Google Chart Image Chart Venn Chart User Text Tutorial

We think a way to improve on our interfacing web application start regarding yesterday’s Google Chart Image Chart Venn Chart Interfacing Primer Tutorial would be to offer the user the chance to enter their own text onto the Venn Diagrams …

But we would say that.

… given what we learnt in Primary school … or should we say …

“Gryffindor Slytherin Ravenclaw Hufflepuff Junior Business College”

… and, yes, is that you, Aoife? What did you want to point out? After you swallow those Rice Bubbles, that is?! Class is waiting …

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Yes … miss something … and …

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Use your words … okay … missing … don’t worry, the bus will wait … no … there’s no need to point … oh! …

… do you mean …

missing ewe … no … missing you … oh! … missing u … oh! … “Gryffindor Slytherin Ravenclaw Hufflepuff Juniour Business College” … quite so, Aiofe … 3 points for Hufflepuff!

Anyway we needed a fleshed out “function ask” to cater for potential onclick event logic catering for co-ordinates …

… in our changed second draft image_venn.html Google Chart Image Chart Venn Chart interfacing web application you can also try below.

Did you know?

As far as this WordPress blog’s 404.php role goes in all this, we were keen to maintain Venn Diagrams that were purely image based data, because the web browser sharing mechanisms are so much better this way, else we were tempted to just construct a webpage HTML dataset positioning text in an absolute way with a Venn Chart background image. In order to do these purely image based Venn Diagrams we used PHP’s GD image library as per …

Previous relevant Google Chart Image Chart Venn Chart Interfacing Primer Tutorial is shown below.

Google Chart Image Chart Venn Chart Interfacing Primer Tutorial

So, moving on from Google Charts Image Chart Map Charts, today, let’s turn our attention to Google Charts Image Chart Venn Charts which we were dead set curious about given work we’d done in the past regarding Venn Diagrams, which we referenced when we presented Flowchart and Venn Diagram and Mind Map Token Subject Emoji Tutorial some time back. Gobsmackingly good is the Google approach, again, as you’d expect, but the approach covers different ground, so one feels one should go back to Primary School! You thought we were going to give away the answer to one of those security questions, didn’t you?! Didn’t you!?! Well, the answer is “Gryffindor Slytherin Ravenclaw Hufflepuff Junior Business College” … if you must know.

The sharing capabilities are good with the Google Charts approach too, given we are creating an HTML image, as our WordPress blog good ol’ 404.php has been woken up to address via …

<?php
if (strpos(('?' . $_SERVER['QUERY_STRING']), '?cht=') !== false || strpos(('?' . $_SERVER['QUERY_STRING']), '&cht=') !== false) { $theqs=str_replace('??','?',('?' . $_SERVER['QUERY_STRING'])); if (strpos($theqs, '?chs=') === false && strpos($theqs, '&chs=') === false) { $theqs='?chs=' . $newWidth . 'x' . $newHeight . '&' . explode('?', $theqs)[1]; } header('Content-Type: image/png'); echo file_get_contents('http://chart.googleapis.com/chart' . $theqs); exit; }
?>

Yes, all these Image Chart smarts come, essentially, from a “one line” calling URL! Who’d have believed it! Shiver me timbers!

Well, it’s early days with this Venn Chart interfacing where we allow for …

circle (think up to three) definition … and the rest, in this first draft (hoping you’ve done some reading) …
legend and title and colour selection user definitions dumped into a fairly unfriendly “the rest” Javascript prompt entry we ask of the user should they go ahead with the previous definition … and …
sharing and collaboration email and SMS functionality

… we hope you try via our “proof of concept” first draft image_venn.html Google Chart Image Chart Venn Chart interfacing web application you can also try below …

If this was interesting you may be interested in this too.

Posted in eLearning, Event-Driven Programming, Tutorials | Tagged aesthetics, angle, animated gif, annotation, attrribute selector, background image, bar chart, border-radius, box chart, broadcast, candlestick chart, canvas, circle, colour, commentary, compound, compound chart, concept, context, CSS, data, degrees, Did you know, discrete, discrete click, div, dropdown, earworm, emoji, encoding, entity, event, event.stopPropagation, GD, gesture, Google Charts, graph, graphical, graphical representation, graphics, GraphViz, GraphViz Chart, guage, GUI, hardcoding, html entity, HTML5, icon, icons, imageellipse, imagefilledellipse, ImageMagick, interface, internationalization, justification, justify, label, line, line chart, linear gradient, loop, looping, macOS, mantissa, mathematics, meter, mobile, mouse, obsession, onclick, ontouchdown, ontouchstart, parameter, parameterization, peer to peer, PHP, pich, pie chart, placeholder, placement, play, play button, popup, popup window, programming, rectangle, relationship, representation, retwaek, rubber band, rubber banding, scatter chart, scribble, scroll, scrolling, snapchat, song, speak, spread, statistics, stopPropagation, substitution, SVG, ternery, text, textarea, textbox, thumbnail, touch, touchdown, tutorial, tweak, user, utf-16, value, venn chart, Venn diagram, video, web browser, window.open, window.opener, YouTube | Leave a comment

Google Chart Image Chart Broadcast Talk Commentary Tutorial

Posted on December 8, 2023 by admin

Google Chart Image Chart Broadcast Talk Commentary Tutorial

… even though it is only visual by nature, presented as an update image still presented and updated periodically. Go figure?!

… and offer a way to help the “Broadcast Talk” demonstrator “speak” during their demonstration, effectively. In so doing, we are going to add to …

the demonstrator’s visual inputs coming from that canvas annotator helper … with, today …
the demonstrator’s commentary, collected via an HTML textarea element (to optionally supplement the visuals) from that canvas annotator helper’s originator window (ie. the Google Charts Image Chart interfacing supervisor) … presented …

… via a new “middle of three slide” …

… animated GIF (PHP 404.php helping) means of display in the viewer windows (off email invitation links they receive via the demonstrator) in the changed …

Previous relevant Google Chart Image Chart Radar Chart Tutorial is shown below.

Google Chart Image Chart Radar Chart Tutorial

Onto yesterday’s Google Chart Image Chart Box Chart Tutorial, today we have a two part stepping forward via new …

Radar Chart interfacing for Google Charts Image Chart … and …
first tentative steps towards, on non-mobile platforms, allowing for text placement rubber banding

Why the trepidation? Well, so far, when the text is angled we can’t understand what results we are getting back from a call to [element].getBoundingClientRect() just yet.

Why is this needed? Again, with the questions! Well, Mr De Niro, you see, well, somebody might want to go onto that more complex annotating.

And why would they do that? Sheesh. Well, Mr De Niro, sir, you see, sometimes things happen in life, and well, fingers slip on keyboards, and mice get awfullllly nervous around screens these days.

And just while we have a few minutes, here’s the updated Javascript parameterization …

Did you know?

Did you notice the inclusion of CSS styling …

Previous relevant Google Chart Image Chart Box Chart Tutorial is shown below.

Google Chart Image Chart Box Chart Tutorial

Today we offer new …

Box Chart compound chart arrangements off the Google Charts Image Chart Bar Chart and Line Chart functionalties
Google-O-Meter Chart guage

… interfacings, onto the progress up to yesterday’s Google Chart Image Chart Colour Tutorial.

As such, it’s probably timely to update you with the parameterization up the top of the Javascript code …

… that goes into helping make the changed latest draft image_venn.html Google Chart Image Chart Venn Chart or Scatter Chart or GraphViz Chart or Pie Chart or Line Chart or Bar Chart or Candlestick/Box Chart or Google-O-Meter Chart or Map Chart interfacing web application you can also try below, one of the happiest little vegemites we know.

Previous relevant Google Chart Image Chart Colour Tutorial is shown below.

Google Chart Image Chart Colour Tutorial

colour picker … way user can define an “inhouse annotations” colour … and while we were at it …
as far as text “inhouse annotations” go we’ve added a counterclockwise from the horizon, in degrees, way to define an angle the text should be placed at … and …
we’ve stopped closing off the text font size dropdown too early, allowing the user to mix it up with their annotations, and so …

We now recommend, for those users pushing the boundaries of functionality, to gather all their “inhouse annotations” together before any “graphical canvas annotations” are thought about.

Which begs the question …

Where do you get it?

Well, here, via … dare we say it?! … … via …

Mantissa Madness Monday

Both colour and degree counterclockwise angle became “Mantissa Madness Monday” tragics, a bit like moi, really?

How did we express these two measures?

colour can be derived at the 404.php end via mantissae that are 9 or more long where a number of the form rrrgggbbb is numerical and passed across to 404.php in the y co-ordinate mantissa … while … kind of crazily …
angle can be a set of zeros in the x co-ordinate mantissa represented by zero characters to the length of the angle from 1 to 359 in front of a pre-existant font size (in px) usage, from last “Mantissa Madness Monday” (us getting away with this because no font size should start with a zero)

Oh! We have such fun around here?! Below is PHP WordPress blog 404.php code …

Previous relevant Google Chart Image Chart Rubber Banding Tutorial is shown below.

Google Chart Image Chart Rubber Banding Tutorial

The Javascript clientside idea of “Rubber Banding” …

Rubber banding is a popular technique of drawing geometric primitives such as line, polylines, rectangle, circle and ellipse on the computer screen.

only really a non-mobile prospect …
function checkforaction(rubberbanding,nx,ny) { var bcbit='background-color:rgba(127,127,127,0.5);'; var zeroes=''; var classbit=''; var brbit=''; var ourdist=0; var ioff=(rubberbanding == true ? 1 : 0); var mone=1; curno=eval('' + xneeds.length); if (eval(ioff + curno) >= needtohave) { if (!rubberbanding) { document.getElementById('fauxdtext').innerHTML=''; } if (curmode == 8) { zeroes='00000000'; classbit=' class="crerect" '; } else if (curmode == -5) { //alert(1); bcbit='border:2px solid rgba(127,127,127,0.5);'; if (rubberbanding) { ourdist=eval(2.0 * Math.sqrt((nx - xneeds[0]) * (nx - xneeds[0]) + (ny - yneeds[0]) * (ny - yneeds[0]))); ourdist-=10; bcbit='border:2px solid gray;background-color:transparent;'; } else { ourdist=eval(2.0 * Math.sqrt((xneeds[1] - xneeds[0]) * (xneeds[1] - xneeds[0]) + (yneeds[1] - yneeds[0]) * (yneeds[1] - yneeds[0]))); } //alert(ourdist); //xneeds[1]=Math.floor('' + ourdist); //yneeds[1]=xneeds[1]; brbit='border-radius:' + Math.floor(eval(ourdist / 2)) + 'px;'; zeroes='00000'; classbit=' class="ocirc" '; //alert('open circle'); } else if (curmode == 6) { if (rubberbanding) { ourdist=eval(2.0 * Math.sqrt((nx - xneeds[0]) * (nx - xneeds[0]) + (ny - yneeds[0]) * (ny - yneeds[0]))); ourdist-=10; } else { ourdist=eval(2.0 * Math.sqrt((xneeds[1] - xneeds[0]) * (xneeds[1] - xneeds[0]) + (yneeds[1] - yneeds[0]) * (yneeds[1] - yneeds[0]))); } //xneeds[1]=Math.floor('' + ourdist); //yneeds[1]=xneeds[1]; brbit='border-radius:' + Math.floor(eval(ourdist / 2)) + 'px;'; //bcbit='border:2px solid rgba(127,127,127,0.5);'; zeroes='000000'; classbit=' class="ccirc" '; //alert('closed circle ' + bcbit); } else if (curmode == -4) { if (rubberbanding) { mone=0.90; bcbit='border:2px solid gray;background-color:transparent;'; } else { bcbit='border:2px solid rgba(127,127,127,0.5);'; } zeroes='00'; classbit=' class="orect" '; } else if (curmode == 2) { zeroes='0'; if (rubberbanding) { if (Math.min(xneeds[0],nx) == xneeds[0] && Math.min(yneeds[0],ny) == ny) { // thanks to https://stackoverflow.com/questions/18012420/draw-diagonal-lines-in-div-background-with-css classbit=' class="crossedtotl" '; } else if (Math.min(xneeds[0],nx) == nx && Math.min(yneeds[0],ny) == yneeds[0]) { // thanks to https://stackoverflow.com/questions/18012420/draw-diagonal-lines-in-div-background-with-css classbit=' class="crossedtotl" '; } else { classbit=' class="crossedtotr" '; } } else { if (Math.min(xneeds[0],xneeds[1]) == xneeds[0] && Math.min(yneeds[0],yneeds[1]) == yneeds[1]) { // thanks to https://stackoverflow.com/questions/18012420/draw-diagonal-lines-in-div-background-with-css classbit=' class="crossedtotl" '; } else if (Math.min(xneeds[0],xneeds[1]) == xneeds[1] && Math.min(yneeds[0],yneeds[1]) == yneeds[0]) { // thanks to https://stackoverflow.com/questions/18012420/draw-diagonal-lines-in-div-background-with-css classbit=' class="crossedtotl" '; } else { classbit=' class="crossedtotr" '; } } bcbit=''; } else if (curmode == 4) { if (rubberbanding) { mone=0.90; } zeroes='0000'; classbit=' class="crect" '; } if (!rubberbanding) { curno=-1; //if (brbit != '') { //document.getElementById('dtext').innerHTML+='<div' + classbit + ' style="' + brbit + 'position:absolute;left:' + Math.min(xneeds[0],nx) + 'px;top:' + Math.min(yneeds[0],ny) + 'px;width:' + Math.abs(xneeds[0] - nx) + 'px;height:' + Math.abs(yneeds[0] - ny) + 'px;z-index:98;' + bcbit + '"></div>'; //} else { //document.getElementById('dtext').innerHTML+='<div' + classbit + ' style="' + brbit + 'position:absolute;left:' + Math.min(xneeds[0],xneeds[1]) + 'px;top:' + Math.min(yneeds[0],yneeds[1]) + 'px;width:' + Math.abs(xneeds[0] - xneeds[1]) + 'px;height:' + Math.abs(yneeds[0] - yneeds[1]) + 'px;z-index:98;' + bcbit + '"></div>'; //} document.getElementById('aemail').href+='&text' + textnum + '=' + encodeURIComponent('' + xneeds[0] + '.' + zeroes + xneeds[1] + ',' + yneeds[0] + '.' + yneeds[1] + ',') + ''; document.getElementById('asms').href+='&text' + textnum + '=' + encodeURIComponent('' + xneeds[0] + '.' + zeroes + xneeds[1] + ',' + yneeds[0] + '.' + yneeds[1] + ',') + ''; aemailurl+='&text' + textnum + '=' + encodeURIComponent('' + xneeds[0] + '.' + zeroes + xneeds[1] + ',' + yneeds[0] + '.' + yneeds[1] + ',') + ''; asmsurl+='&text' + textnum + '=' + encodeURIComponent('' + xneeds[0] + '.' + zeroes + xneeds[1] + ',' + yneeds[0] + '.' + yneeds[1] + ',') + ''; arest+='&text' + textnum + '=' + encodeURIComponent('' + xneeds[0] + '.' + zeroes + xneeds[1] + ',' + yneeds[0] + '.' + yneeds[1] + ',') + ''; } if (brbit != '') { //alert('brbit=' + brbit); //xneeds[0]-=(xneeds[1] - xneeds[0]); //yneeds[0]-=(yneeds[1] - yneeds[0]); //alert('xneeds[0]=' + xneeds[0]); if (rubberbanding) { document.getElementById('fauxdtext').innerHTML='<div' + classbit + ' style="' + brbit + 'z-index:-89;position:absolute;left:' + Math.floor(eval(Math.min(xneeds[0],xneeds[0]) - ourdist / 2)) + 'px;top:' + Math.floor(eval(Math.min(yneeds[0],yneeds[0]) - ourdist / 2)) + 'px;width:' + ourdist + 'px;height:' + ourdist + 'px;z-index:98;' + bcbit + '"></div>'; } else { document.getElementById('dtext').innerHTML+='<div' + classbit + ' style="' + brbit + 'position:absolute;left:' + Math.floor(eval(Math.min(xneeds[0],xneeds[0]) - ourdist / 2)) + 'px;top:' + Math.floor(eval(Math.min(yneeds[0],yneeds[0]) - ourdist / 2)) + 'px;width:' + ourdist + 'px;height:' + ourdist + 'px;z-index:98;' + bcbit + '"></div>'; } } else { if (rubberbanding) { document.getElementById('fauxdtext').innerHTML='<div' + classbit + ' style="' + brbit + 'z-index:-89;position:absolute;left:' + Math.min(xneeds[0],nx) + 'px;top:' + Math.min(yneeds[0],ny) + 'px;width:' + Math.max(Math.floor(eval(-30 + Math.abs(xneeds[0] - nx))),Math.floor(eval(mone * Math.abs(xneeds[0] - nx)))) + 'px;height:' + Math.max(Math.floor(eval(-30 + Math.abs(yneeds[0] - ny))),Math.floor(eval(mone * Math.abs(yneeds[0] - ny)))) + 'px;z-index:98;' + bcbit + '"></div>'; } else { document.getElementById('dtext').innerHTML+='<div' + classbit + ' style="' + brbit + 'position:absolute;left:' + Math.min(xneeds[0],xneeds[1]) + 'px;top:' + Math.min(yneeds[0],yneeds[1]) + 'px;width:' + Math.abs(xneeds[0] - xneeds[1]) + 'px;height:' + Math.abs(yneeds[0] - yneeds[1]) + 'px;z-index:98;' + bcbit + '"></div>'; } } if (!rubberbanding) { textnum++; xneeds=[]; yneeds=[]; //alert('arest=' + arest); document.getElementById('tdright').innerHTML=" <span id=spemail><a target=_blank href='mailto:?subject=My%20" + cencodename + "%20...%20best%20viewed%20in%20landscape%20...&body=" + encodeURIComponent((document.getElementById('myvenn').src + arest).replace((document.getElementById('myvenn').src + arest).split('?')[0].split('#')[0], document.URL.split('?')[0].split('#')[0])) + "' id=aemail title=Email>📧</a></span> <span id=spsms><a target=_blank onmouseover=\"if (smsee.length == 0 && origsmsurl.indexOf('sms:&') != -1) { smsee=prompt('Please enter SMS number to send to.', ''); if (smsee == null) { smsee=''; } else { origsmsurl=origsmsurl.replace('sms:&','sms:' + smsee + '&'); asmsurl=asmsurl.replace('sms:&','sms:' + smsee + '&'); this.href=asmsurl; } }\" ontouchstart=\"if (smsee.length == 0 && origsmsurl.indexOf('sms:&') != -1) { smsee=prompt('Please enter SMS number to send to.', ''); if (smsee == null) { smsee=''; } else { origsmsurl=origsmsurl.replace('sms:&','sms:' + smsee + '&'); asmsurl=asmsurl.replace('sms:&','sms:' + smsee + '&'); this.href=asmsurl; } }\" href='sms:&body=" + encodeURIComponent((document.getElementById('myvenn').src + arest).replace(document.getElementById('myvenn').src.split('?')[0].split('#')[0], document.URL.split('?')[0].split('#')[0])) + "' id=asms title=SMS>📟</a></span><br><br> <input title=\"\" onclick=\"event.stopPropagation();\" id=ilp onblur=\"waitfortwo(0); lasttext=this.value.replace(/\~\~/g, '<br>'); this.title=lasttext; if (!navigator.userAgent.match(/Android|BlackBerry|iPhone|iPad|iPod|Opera Mini|IEMobile/i)) { this.value=''; } this.placeholder='Click where you want ... ' + lasttext.replace(/\<br\>/g, String.fromCharCode(10)); mvp.setAttribute('content','initial-scale=1'); document.getElementById('myvenn').scrollIntoView();\" placeholder='Enter text and later click place for it on " + decodeURIComponent(cencodename) + " to left (line feed is ~~)' type=text style=width:500px; value=''></input>" + fszbit + "<br><br> <img id=line src='/MarkItUp/line.png' onclick=\"event.stopPropagation(); this.style.border='1px dotted red'; waitfortwo(2);\"></img> <img id=rectangle src='/MarkItUp/rectangle.png' onclick=\"event.stopPropagation(); this.style.border='1px dotted red'; waitfortwo(4);\"></img> <img id=orectangle src='/MarkItUp/orectangle.png' onclick=\"event.stopPropagation(); this.style.border='1px dotted red'; waitfortwo(-4);\"></img> <img id=circle src='/MarkItUp/circlefill.png' onclick=\"event.stopPropagation(); this.style.border='1px dotted red'; waitfortwo(6);\"></img> <img id=ocircle src='/MarkItUp/circle.png' onclick=\"event.stopPropagation(); this.style.border='1px dotted red'; waitfortwo(-5);\"></img> <button id=orerect onclick=\"event.stopPropagation(); this.style.border='1px dotted red'; waitfortwo(8);\" title=\"Zoom in on rectangle you define via two clicks\" style=display:none;>🔎</button>" + lastbit + atend; //alert(1); if (!navigator.userAgent.match(/Android|BlackBerry|iPhone|iPad|iPod|Opera Mini|IEMobile/i)) { document.getElementById('ilp').focus(); } document.getElementById('ilp').placeholder='Enter text and later click place for it on ' + decodeURIComponent(cencodename) + ' to left (line feed is ~~)'; } } else if (curmode == 2 && !rubberbanding) { document.getElementById('line').style.border='1px dashed yellow'; } else if (curmode == -4 && !rubberbanding) { document.getElementById('orectangle').style.border='1px dashed yellow'; } else if (curmode == 4 && !rubberbanding) { document.getElementById('rectangle').style.border='1px dashed yellow'; } else if (curmode == -5 && !rubberbanding) { document.getElementById('ocircle').style.border='1px dashed yellow'; } else if (curmode == 6 && !rubberbanding) { document.getElementById('circle').style.border='1px dashed yellow'; } else if (curmode == 8 && !rubberbanding) { document.getElementById('orerect').style.border='1px dashed yellow'; } } // Rubber banding document.body.addEventListener('mousemove', function(evt){ evt = evt || window.event; evt.preventDefault(); elemLeft = document.getElementById('myvenn').offsetLeft; elemTop = document.getElementById('myvenn').offsetTop; //document.getElementById('myh3').innerHTML+=' ' + elemLeft + ':' + elemTop; //document.getElementById('myh3').innerHTML+=' ' + document.body.scrollLeft + '.' + document.body.scrollTop; if (evt.touches) { if (evt.touches[0].pageX) { //alert('here'); xx = evt.touches[0].pageX + document.body.scrollLeft - elemLeft; yy = evt.touches[0].pageY + document.body.scrollTop - elemTop; if (xx >= 0 && xx <= eval(('' + document.getElementById('myvenn').width).replace('px','')) && yy >= 0 && yy <= eval(('' + document.getElementById('myvenn').height).replace('px',''))) { if (curno == 1 && (lastx != xx || lasty != yy)) { checkforaction(true,xx,yy); } //lastx=xx; //lasty=yy; //alert('x:' + x + ' and y:' + y); } } else { //alert('Here'); xx = evt.touches[0].clientX + document.body.scrollLeft - elemLeft; yy = evt.touches[0].clientY + document.body.scrollTop - elemTop; if (xx >= 0 && xx <= eval(('' + document.getElementById('myvenn').width).replace('px','')) && yy >= 0 && yy <= eval(('' + document.getElementById('myvenn').height).replace('px',''))) { if (curno == 1 && (lastx != xx || lasty != yy)) { checkforaction(true,xx,yy); } //lastx=xx; //lasty=yy; //alert('x:' + x + ' and y:' + y); } } } else if (evt.clientX || ev.clientY) { //alert('HERE'); xx = evt.clientX + document.body.scrollLeft - elemLeft; yy = evt.clientY + document.body.scrollTop - elemTop; if (xx >= 0 && xx <= eval(('' + document.getElementById('myvenn').width).replace('px','')) && yy >= 0 && yy <= eval(('' + document.getElementById('myvenn').height).replace('px',''))) { if (curno == 1 && (lastx != xx || lasty != yy)) { checkforaction(true,xx,yy); } //lastx=xx; //lasty=yy; } } else { //alert('HEre'); xx = evt.pageX + document.body.scrollLeft - elemLeft; yy = evt.pageY + document.body.scrollTop - elemTop; if (xx >= 0 && xx <= eval(('' + document.getElementById('myvenn').width).replace('px','')) && yy >= 0 && yy <= eval(('' + document.getElementById('myvenn').height).replace('px',''))) { if (curno == 1 && (lastx != xx || lasty != yy)) { checkforaction(true,xx,yy); } //lastx=xx; //lasty=yy; } } });
… at least for us (being as we do not want to clobber any pinch or spread gesture ideas, for the user)
is only a really, “nice to have” functionality idea

Even so, achieving even a 95% percent working “rubber band” is like … is like …

Barracking for Hairtie United …
You little beauty, Untied!

change looking for a “touchstart” event, and instead look for a “touchdown” event for a document.body scope (else we might have restricted the “scope” to just document.getEleementById(‘myvenn’) as another approach (and you should note our event.stopPropagation() statements in lots of places as another research point for you)) because we are talking “discrete click” user behaviour we are targeting … as well as …
start checking that the co-ordinates calculated fall into the range of the Google Charts Image Chart image dimensions … doh!

Did you know?

Previous relevant Google Chart Image Chart Circle Annotation Tutorial is shown below.

Google Chart Image Chart Circle Annotation Tutorial

Today, we add …

open circle
filled circle

… annotation possibilities onto the “Broadcast Talk” work in yesterday’s Google Chart Image Chart Broadcast Talk Context Tutorial.

The CSS border-radius property has come to the rescue of many a programmer, saving us from resorting to SVG to display circle or ellipses or arcs of various sorts …

… to team up with WordPress blog 404.php changes …

Previous relevant Google Chart Image Chart Broadcast Talk Context Tutorial is shown below.

Google Chart Image Chart Broadcast Talk Context Tutorial

The progress, today, along the same lines as yesterday’s Google Chart Image Chart Broadcast Talk Tutorial‘s introduction of a “Broadcast Talk” functionality, was to …

improve “Broadcast Talk” context, by adding onto yesterday’s …

presented as an update image still presented and updated periodically

… only display option, with, as of today …
a presenter’s first snapshotted image retained for user display (in case they arrive late to the lesson … tutt tutt) … and …
ImageMagick created animated GIF with slides for just this first image and the most recent image, updated periodically, in bottom right cell of user display …
<?php
if (isset($_POST['canvcont']) && isset($_POST['uniquifier']) && strpos(('?' . $_SERVER['QUERY_STRING']), 'cht=') === false) { if (isset($_POST['uniquifier'])) { $uniquifier=str_replace('+',' ',urldecode($_POST['uniquifier'])); } if ($uniquifier == '') { $uniquifier='_' . rand(0,78654356); file_put_contents($_SERVER['DOCUMENT_ROOT'] . DIRECTORY_SEPARATOR . "presentation" . $uniquifier . ".png", base64_decode( explode('base64,', str_replace(' ','+',urldecode($_POST['canvcont'])))[1])); exec("/usr/local/cpanel/3rdparty/bin/convert -delay 20 -loop 0 " . $_SERVER['DOCUMENT_ROOT'] . DIRECTORY_SEPARATOR . "presentation" . $uniquifier . ".png" . " " . $_SERVER['DOCUMENT_ROOT'] . DIRECTORY_SEPARATOR . "presentation" . $uniquifier . ".gif"); echo "<html><body onload=\"if (parent.document.getElementById('uniquifier')) { if (parent.document.getElementById('uniquifier').value == '') { parent.document.getElementById('uniquifier').value='" . $uniquifier . "'; } }\"></body></html>"; } else { file_put_contents($_SERVER['DOCUMENT_ROOT'] . DIRECTORY_SEPARATOR . "presentation" . $uniquifier . ".png", base64_decode( explode('base64,', str_replace(' ','+',urldecode($_POST['canvcont'])))[1])); exec("rm -f " . $_SERVER['DOCUMENT_ROOT'] . DIRECTORY_SEPARATOR . "presentation" . $uniquifier . ".gif ; /usr/local/cpanel/3rdparty/bin/convert -delay 200 -loop 0 " . $_SERVER['DOCUMENT_ROOT'] . DIRECTORY_SEPARATOR . "presentation_" . $uniquifier . ".png " . $_SERVER['DOCUMENT_ROOT'] . DIRECTORY_SEPARATOR . "presentation" . $uniquifier . ".png" . " " . $_SERVER['DOCUMENT_ROOT'] . DIRECTORY_SEPARATOR . "presentation" . $uniquifier . ".gif"); } exit; }
?>
… and …
images saved as changes are detected gathered, as ever smaller thumbnails, in the top right of four table cells of the user display …
var iijk=0, uniquif=''; snapshots=[], elem=null, elemcontext=null, oimg=null, checkforsquare=2; function canvinit() { var kkii=0, wpx=0, hpx=0; var tdr=document.getElementById('tdtr').getBoundingClientRect(); wpx=eval('' + tdr.width); hpx=eval('' + tdr.height); elem=document.getElementById('agcanvas'); elemcontext=elem.getContext('2d'); elem.width=elem.width; elemcontext.drawImage(document.getElementById('talkimg'),0,0); if (iijk == 0 || ('' + document.getElementById('tdtr').style.backgroundImage).indexOf('rand=0') != -1) { //alert('89 ' + elem.toDataURL().length); //snapshots.push(elem.toDataURL()); iijk=eval(-1 + eval('' + ('' + document.getElementById('tdtr').style.backgroundImage).split('),').length)); document.getElementById('tdtr').style.backgroundImage=('' + document.getElementById('tdtr').style.backgroundImage).replace(('' + document.getElementById('tdtr').style.backgroundImage).split('),')[iijk], '' + 'url(' + elem.toDataURL() + '),' + ('' + document.getElementById('tdtr').style.backgroundImage).split('),')[iijk]).replace('rand=0', 'rand=x'); iijk=eval(0 + eval('' + ('' + document.getElementById('tdtr').style.backgroundImage).split('),').length)); setInterval(canvinit, 9000); } else { elem.width=elem.width; elemcontext.drawImage(document.getElementById('talkimg'),0,0); if (document.body.innerHTML.indexOf(elem.toDataURL()) == -1) { //snapshots.push(elem.toDataURL()); iijk=eval(-1 + eval('' + ('' + document.getElementById('tdtr').style.backgroundImage).split('),').length)); document.getElementById('tdtr').style.backgroundImage=('' + document.getElementById('tdtr').style.backgroundImage).replace(('' + document.getElementById('tdtr').style.backgroundImage).split('),')[iijk], '' + 'url(' + elem.toDataURL() + '),' + ('' + document.getElementById('tdtr').style.backgroundImage).split('),')[iijk]).replace('rand=x','rand=x' + Math.floor(Math.random() * 9)); iijk=eval(0 + eval('' + ('' + document.getElementById('tdtr').style.backgroundImage).split('),').length)); } } var bpx='background-position:;'; var bbpx='background-position:;'; var bsx='background-size:;'; var brx='background-repeat:;'; var xstart=0; var ystart=0; var xxstart=eval('' + tdr.left); var yystart=eval('' + tdr.top); if (iijk > eval(checkforsquare * checkforsquare)) { checkforsquare++; } for (kkii=1; kkii<=iijk; kkii++) { if (bsx.indexOf(':;') != -1) { bsx=bsx.replace(':;', ':' + Math.round(eval(wpx / checkforsquare)) + 'px ' + Math.round(eval(hpx /checkforsquare)) + 'px;'); brx=brx.replace(':;', ':no-repeat;'); bpx=bpx.replace(':;', ':' + Math.round(xstart) + 'px ' + Math.round(ystart) + 'px;'); bbpx=bbpx.replace(':;', ':' + Math.round(xxstart) + 'px ' + Math.round(yystart) + 'px;'); } else { bsx=bsx.replace(';', ',' + Math.round(eval(wpx / checkforsquare)) + 'px ' + Math.round(eval(hpx /checkforsquare)) + 'px;'); brx=brx.replace(';', ',no-repeat;'); bpx=bpx.replace(';', ',' + Math.round(xstart) + 'px ' + Math.round(ystart) + 'px;'); bbpx=bbpx.replace(';', ',' + Math.round(xxstart) + 'px ' + Math.round(yystart) + 'px;'); } if (eval(kkii % checkforsquare) == 0) { xstart=0; xxstart=eval('' + tdr.left); ystart+=eval(hpx / checkforsquare); yystart+=eval(hpx / checkforsquare); } else { xstart+=eval(wpx / checkforsquare); xxstart+=eval(wpx / checkforsquare); } } //alert('iijk=' + iijk + ' ' + bbpx + ' ' + bpx + ' ' + bsx + ' ' + brx); document.getElementById('tdtr').style.backgroundRepeat=brx.split(':')[1]; document.getElementById('tdtr').style.backgroundSize=bsx.split(':')[1]; document.getElementById('tdtr').style.backgroundPosition=bpx.split(':')[1]; //document.body.style.backgroundImage=('' + document.getElementById('tdtr').style.backgroundImage); //document.body.style.backgroundRepeat=brx.split(':')[1]; //document.body.style.backgroundSize=bsx.split(':')[1]; document.body.style.backgroundPosition=bbpx.split(':')[1]; var kdss=bsx.split(':')[1].replace(/\;/g,'').split(','); var idss=bbpx.split(':')[1].replace(/\;/g,'').split(','); var jdss=(('' + document.getElementById('tdtr').style.backgroundImage) + ',').replace(';,',',').replace(/url\(/g,'').replace(/URL\(/g,'').replace(/\&quot\;/g,'').replace(/\"/g,'').split('),'); document.getElementById('idiv').innerHTML=''; var istuff='', laststuff=''; for (var iop=0; iop<idss.length; iop++) { //while (istuff == laststuff) { if (('' + jdss[iop]) != 'undefined' && ('' + jdss[iop]).trim() != '') { if (jdss[iop].trim().indexOf('iVBOR') != -1) { istuff+='<img style="position:absolute;width:' + kdss[iop].split(' ')[0] + ';height:' + kdss[iop].split(' ')[1] + ';left:' + idss[iop].split(' ')[0] + ';top:' + idss[iop].split(' ')[1] + ';" src="data:image/png;base64,iVBOR' + jdss[iop].trim().split('iVBOR')[1] + '"></img>'; } else if (jdss[iop].trim() .indexOf('//') != -1) { istuff+='<img style="position:absolute;width:' + kdss[iop].split(' ')[0] + ';height:' + kdss[iop].split(' ')[1] + ';left:' + idss[iop].split(' ')[0] + ';top:' + idss[iop].split(' ')[1] + ';" src="' + jdss[iop].trim() + '"></img>'; } //} laststuff=istuff; } } document.getElementById('idiv').innerHTML=istuff; }

Previous relevant Google Chart Image Chart Broadcast Talk Tutorial is shown below.

Google Chart Image Chart Broadcast Talk Tutorial

Onto yesterday’s Google Chart Image Chart Statistical Charts Tutorial progress we want to offer …

once a user has that “More Annotation” annotating happening … offer the chance to …
Broadcast … their work as it happens, dynamically …
to an emailee list audience

… and we’re calling this …

Broadcast Talk

… even though it is only visual by nature, presented as an update image still presented and updated periodically. Go figure?! We’re blaming that supper time two back. We’re not sure?!

… featuring our first use of this 404.php in response to a method=POST form call. Verrrrrryyyy interesting!

Previous relevant Google Chart Image Chart Statistical Charts Tutorial is shown below.

Google Chart Image Chart Statistical Charts Tutorial

Line Chart … with its three display options …
1. Even
2. Sparkline
3. Just XY
Bar Chart … with its three display options …
1. Grouped
2. Stacked
3. Overlapped
Candlestick Chart

Previous relevant Google Chart Image Chart Pie Chart Tutorial is shown below.

Google Chart Image Chart Pie Chart Tutorial

As we intimated in yesterday’s Google Chart Image Chart GraphViz Chart Tutorial …

start with an at least two part “inhouse phase” of additional “extra to text” annotation functionality possibilities …

Yes, we are dovetailing with work we’ve done in the past using the excellent …

canvas … element introduced with HTML5 … whereby …
annotations like …
1. scribble … as the default, and various other …
2. discrete click shapes … and …
3. text … including emojis … and …
4. image
… annotating modus operandi

… can be part of the arrangements. It works that the Annotation Helper is opened …

in a new “known about” popup window … looking out for …
parent based “img” element (in the modus operandi we use, calling it, regarding the parent top left image) … so as to be able to …
populate its canvas element with a clone of that calling “img” graphical content … but add into the mix …
menu driven annotation functionality which can change that canvas look and underlying data … and …
the caller can keep track of this and arrange, or not, for these changes to be reflected back at its top left “img” element … the catch being …
the “within range of GET argument” limits are ruined by this introduction of graphical data, and so in agreeing to this, a user forgoes those simpler sharing and annotating functionalities of yesterday’s (and before) work … though your normal image sharing capabilities via the web browser remain in the caller and the called

As well, today, we are introducing new Google Charts Image Chart Pie Chart interfacing, and because this chart type can have the three …

Normal
3D
Concentric

… guises, there was some work to keep us off this street (okay … so we divulged … again) …

Previous relevant Google Chart Image Chart GraphViz Chart Tutorial is shown below.

Google Chart Image Chart GraphViz Chart Tutorial

Today we have two strands of forward progress, onto the progress up to yesterday’s Google Chart Image Chart Scatter Chart Tutorial, they being …

establish a new interfacing to GraphViz Chart …

GraphViz is a package of open source tools for visualizing connectivity graphs. You can create GraphViz graphs using the DOT language and your choice of layout engines.

… a chart looking a bit like Organization Charts …

Org charts are diagrams of a hierarchy of nodes, commonly used to portray superior/subordinate relationships in an organization. A family tree is a type of org chart.
start with an at least two part “inhouse phase” of additional “extra to text” annotation functionality possibilities … just starting with …
1. line
2. open rectangle
3. filled rectangle

… additional functionality, that we may well add to, but being as we feel a change we’ll leave that for another time.

The WordPress blog “404.php” code snippet becomes …

… utilizing that good ol’ PHP GD image library.

We hope you enjoy the …

Mantissa Madness Monday

… coding feel utilized to retain yesterday’s …

&text_n=x,y,Text

Did you know?

HTML hr elements (with a rotation) … and the less kludgy …
HTML div (defining a box with defined dimensions) for a nested SVG element containing the line definition using percentage dimensions

… in the past, for when we needed to do this. But, today, we’d like to thank this great webpage for its suggestion to involve linear gradients …

… in a, basically, CSS solution. Great stuff, thanks!

Previous relevant Google Chart Image Chart Scatter Chart Tutorial is shown below.

Google Chart Image Chart Scatter Chart Tutorial

Today, we bring the Google Charts Image Chart …

Venn Chart interfacing knowledge via yesterday’s Google Chart Image Chart Venn Chart User Text Tutorial … using it to encase some …
Scatter Chart interfacing logic … and along the way fix …
mobile platform User Text issues

Here is our framework for parameterization, here, and into the future …

Did you know?

In this online world with so many platforms and devices and software choices, there is no need to ever be embarrassed by what might seem an obvious feature you’ve missed.

Take the way on macOS, but not iOS, using a web browser to get to YouTube, you can flag that a video should loop. Especially good for …

song obsessions …
earworms you need to salve

… and what about if your shower is taking an awfully long time?! Please be careful with moisture and devices, though, in the bathroom!

How does it happen? Right click the play button, and looping is there as the top option. Now back to that shower song obsession.

Previous relevant Google Chart Image Chart Venn Chart User Text Tutorial is shown below.

Google Chart Image Chart Venn Chart User Text Tutorial

But we would say that.

… given what we learnt in Primary school … or should we say …

“Gryffindor Slytherin Ravenclaw Hufflepuff Junior Business College”

… and, yes, is that you, Aoife? What did you want to point out? After you swallow those Rice Bubbles, that is?! Class is waiting …

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Yes … miss something … and …

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Use your words … okay … missing … don’t worry, the bus will wait … no … there’s no need to point … oh! …

… do you mean …

missing ewe … no … missing you … oh! … missing u … oh! … “Gryffindor Slytherin Ravenclaw Hufflepuff Juniour Business College” … quite so, Aiofe … 3 points for Hufflepuff!

Anyway we needed a fleshed out “function ask” to cater for potential onclick event logic catering for co-ordinates …

… in our changed second draft image_venn.html Google Chart Image Chart Venn Chart interfacing web application you can also try below.

Did you know?

Previous relevant Google Chart Image Chart Venn Chart Interfacing Primer Tutorial is shown below.

Google Chart Image Chart Venn Chart Interfacing Primer Tutorial

The sharing capabilities are good with the Google Charts approach too, given we are creating an HTML image, as our WordPress blog good ol’ 404.php has been woken up to address via …

Yes, all these Image Chart smarts come, essentially, from a “one line” calling URL! Who’d have believed it! Shiver me timbers!

Well, it’s early days with this Venn Chart interfacing where we allow for …

circle (think up to three) definition … and the rest, in this first draft (hoping you’ve done some reading) …
legend and title and colour selection user definitions dumped into a fairly unfriendly “the rest” Javascript prompt entry we ask of the user should they go ahead with the previous definition … and …
sharing and collaboration email and SMS functionality

… we hope you try via our “proof of concept” first draft image_venn.html Google Chart Image Chart Venn Chart interfacing web application you can also try below …

If this was interesting you may be interested in this too.

Posted in eLearning, Event-Driven Programming, Operating System, Tutorials | Tagged angle, animated gif, annotation, attrribute selector, background image, bar chart, border-radius, box chart, broadcast, candlestick chart, canvas, circle, colour, commentary, compound, compound chart, concept, context, CSS, data, degrees, Did you know, discrete, discrete click, div, dropdown, earworm, emoji, encoding, entity, event, event.stopPropagation, GD, gesture, Google Charts, graph, graphical, graphical representation, graphics, GraphViz, GraphViz Chart, guage, GUI, hardcoding, html entity, HTML5, imageellipse, imagefilledellipse, ImageMagick, interface, internationalization, justification, justify, label, line, line chart, linear gradient, loop, looping, macOS, mantissa, mathematics, meter, mobile, mouse, obsession, onclick, ontouchdown, ontouchstart, parameter, parameterization, peer to peer, PHP, pich, pie chart, placeholder, placement, play, play button, popup, popup window, programming, rectangle, relationship, representation, retwaek, rubber band, rubber banding, scatter chart, scribble, scroll, scrolling, snapchat, song, speak, spread, statistics, stopPropagation, substitution, SVG, ternery, text, textarea, textbox, thumbnail, touch, touchdown, tutorial, tweak, user, utf-16, value, venn chart, Venn diagram, video, web browser, window.open, window.opener, YouTube | Leave a comment

Google Chart Image Chart Radar Chart Tutorial

Posted on December 7, 2023 by admin

Google Chart Image Chart Radar Chart Tutorial

Onto yesterday’s Google Chart Image Chart Box Chart Tutorial, today we have a two part stepping forward via new …

Radar Chart interfacing for Google Charts Image Chart … and …
first tentative steps towards, on non-mobile platforms, allowing for text placement rubber banding

Why the trepidation? Well, so far, when the text is angled we can’t understand what results we are getting back from a call to [element].getBoundingClientRect() just yet.

Why is this needed? Again, with the questions! Well, Mr De Niro, you see, well, somebody might want to go onto that more complex annotating.

And why would they do that? Sheesh. Well, Mr De Niro, sir, you see, sometimes things happen in life, and well, fingers slip on keyboards, and mice get awfullllly nervous around screens these days.

And just while we have a few minutes, here’s the updated Javascript parameterization …

Did you know?

Did you notice the inclusion of CSS styling …

Previous relevant Google Chart Image Chart Box Chart Tutorial is shown below.

Google Chart Image Chart Box Chart Tutorial

Today we offer new …

Box Chart compound chart arrangements off the Google Charts Image Chart Bar Chart and Line Chart functionalties
Google-O-Meter Chart guage

… interfacings, onto the progress up to yesterday’s Google Chart Image Chart Colour Tutorial.

As such, it’s probably timely to update you with the parameterization up the top of the Javascript code …

… that goes into helping make the changed latest draft image_venn.html Google Chart Image Chart Venn Chart or Scatter Chart or GraphViz Chart or Pie Chart or Line Chart or Bar Chart or Candlestick/Box Chart or Google-O-Meter Chart or Map Chart interfacing web application you can also try below, one of the happiest little vegemites we know.

Previous relevant Google Chart Image Chart Colour Tutorial is shown below.

Google Chart Image Chart Colour Tutorial

colour picker … way user can define an “inhouse annotations” colour … and while we were at it …
as far as text “inhouse annotations” go we’ve added a counterclockwise from the horizon, in degrees, way to define an angle the text should be placed at … and …
we’ve stopped closing off the text font size dropdown too early, allowing the user to mix it up with their annotations, and so …

We now recommend, for those users pushing the boundaries of functionality, to gather all their “inhouse annotations” together before any “graphical canvas annotations” are thought about.

Which begs the question …

Where do you get it?

Well, here, via … dare we say it?! … … via …

Mantissa Madness Monday

Both colour and degree counterclockwise angle became “Mantissa Madness Monday” tragics, a bit like moi, really?

How did we express these two measures?

colour can be derived at the 404.php end via mantissae that are 9 or more long where a number of the form rrrgggbbb is numerical and passed across to 404.php in the y co-ordinate mantissa … while … kind of crazily …
angle can be a set of zeros in the x co-ordinate mantissa represented by zero characters to the length of the angle from 1 to 359 in front of a pre-existant font size (in px) usage, from last “Mantissa Madness Monday” (us getting away with this because no font size should start with a zero)

Oh! We have such fun around here?! Below is PHP WordPress blog 404.php code …

Previous relevant Google Chart Image Chart Rubber Banding Tutorial is shown below.

Google Chart Image Chart Rubber Banding Tutorial

The Javascript clientside idea of “Rubber Banding” …

Rubber banding is a popular technique of drawing geometric primitives such as line, polylines, rectangle, circle and ellipse on the computer screen.

only really a non-mobile prospect …
function checkforaction(rubberbanding,nx,ny) { var bcbit='background-color:rgba(127,127,127,0.5);'; var zeroes=''; var classbit=''; var brbit=''; var ourdist=0; var ioff=(rubberbanding == true ? 1 : 0); var mone=1; curno=eval('' + xneeds.length); if (eval(ioff + curno) >= needtohave) { if (!rubberbanding) { document.getElementById('fauxdtext').innerHTML=''; } if (curmode == 8) { zeroes='00000000'; classbit=' class="crerect" '; } else if (curmode == -5) { //alert(1); bcbit='border:2px solid rgba(127,127,127,0.5);'; if (rubberbanding) { ourdist=eval(2.0 * Math.sqrt((nx - xneeds[0]) * (nx - xneeds[0]) + (ny - yneeds[0]) * (ny - yneeds[0]))); ourdist-=10; bcbit='border:2px solid gray;background-color:transparent;'; } else { ourdist=eval(2.0 * Math.sqrt((xneeds[1] - xneeds[0]) * (xneeds[1] - xneeds[0]) + (yneeds[1] - yneeds[0]) * (yneeds[1] - yneeds[0]))); } //alert(ourdist); //xneeds[1]=Math.floor('' + ourdist); //yneeds[1]=xneeds[1]; brbit='border-radius:' + Math.floor(eval(ourdist / 2)) + 'px;'; zeroes='00000'; classbit=' class="ocirc" '; //alert('open circle'); } else if (curmode == 6) { if (rubberbanding) { ourdist=eval(2.0 * Math.sqrt((nx - xneeds[0]) * (nx - xneeds[0]) + (ny - yneeds[0]) * (ny - yneeds[0]))); ourdist-=10; } else { ourdist=eval(2.0 * Math.sqrt((xneeds[1] - xneeds[0]) * (xneeds[1] - xneeds[0]) + (yneeds[1] - yneeds[0]) * (yneeds[1] - yneeds[0]))); } //xneeds[1]=Math.floor('' + ourdist); //yneeds[1]=xneeds[1]; brbit='border-radius:' + Math.floor(eval(ourdist / 2)) + 'px;'; //bcbit='border:2px solid rgba(127,127,127,0.5);'; zeroes='000000'; classbit=' class="ccirc" '; //alert('closed circle ' + bcbit); } else if (curmode == -4) { if (rubberbanding) { mone=0.90; bcbit='border:2px solid gray;background-color:transparent;'; } else { bcbit='border:2px solid rgba(127,127,127,0.5);'; } zeroes='00'; classbit=' class="orect" '; } else if (curmode == 2) { zeroes='0'; if (rubberbanding) { if (Math.min(xneeds[0],nx) == xneeds[0] && Math.min(yneeds[0],ny) == ny) { // thanks to https://stackoverflow.com/questions/18012420/draw-diagonal-lines-in-div-background-with-css classbit=' class="crossedtotl" '; } else if (Math.min(xneeds[0],nx) == nx && Math.min(yneeds[0],ny) == yneeds[0]) { // thanks to https://stackoverflow.com/questions/18012420/draw-diagonal-lines-in-div-background-with-css classbit=' class="crossedtotl" '; } else { classbit=' class="crossedtotr" '; } } else { if (Math.min(xneeds[0],xneeds[1]) == xneeds[0] && Math.min(yneeds[0],yneeds[1]) == yneeds[1]) { // thanks to https://stackoverflow.com/questions/18012420/draw-diagonal-lines-in-div-background-with-css classbit=' class="crossedtotl" '; } else if (Math.min(xneeds[0],xneeds[1]) == xneeds[1] && Math.min(yneeds[0],yneeds[1]) == yneeds[0]) { // thanks to https://stackoverflow.com/questions/18012420/draw-diagonal-lines-in-div-background-with-css classbit=' class="crossedtotl" '; } else { classbit=' class="crossedtotr" '; } } bcbit=''; } else if (curmode == 4) { if (rubberbanding) { mone=0.90; } zeroes='0000'; classbit=' class="crect" '; } if (!rubberbanding) { curno=-1; //if (brbit != '') { //document.getElementById('dtext').innerHTML+='<div' + classbit + ' style="' + brbit + 'position:absolute;left:' + Math.min(xneeds[0],nx) + 'px;top:' + Math.min(yneeds[0],ny) + 'px;width:' + Math.abs(xneeds[0] - nx) + 'px;height:' + Math.abs(yneeds[0] - ny) + 'px;z-index:98;' + bcbit + '"></div>'; //} else { //document.getElementById('dtext').innerHTML+='<div' + classbit + ' style="' + brbit + 'position:absolute;left:' + Math.min(xneeds[0],xneeds[1]) + 'px;top:' + Math.min(yneeds[0],yneeds[1]) + 'px;width:' + Math.abs(xneeds[0] - xneeds[1]) + 'px;height:' + Math.abs(yneeds[0] - yneeds[1]) + 'px;z-index:98;' + bcbit + '"></div>'; //} document.getElementById('aemail').href+='&text' + textnum + '=' + encodeURIComponent('' + xneeds[0] + '.' + zeroes + xneeds[1] + ',' + yneeds[0] + '.' + yneeds[1] + ',') + ''; document.getElementById('asms').href+='&text' + textnum + '=' + encodeURIComponent('' + xneeds[0] + '.' + zeroes + xneeds[1] + ',' + yneeds[0] + '.' + yneeds[1] + ',') + ''; aemailurl+='&text' + textnum + '=' + encodeURIComponent('' + xneeds[0] + '.' + zeroes + xneeds[1] + ',' + yneeds[0] + '.' + yneeds[1] + ',') + ''; asmsurl+='&text' + textnum + '=' + encodeURIComponent('' + xneeds[0] + '.' + zeroes + xneeds[1] + ',' + yneeds[0] + '.' + yneeds[1] + ',') + ''; arest+='&text' + textnum + '=' + encodeURIComponent('' + xneeds[0] + '.' + zeroes + xneeds[1] + ',' + yneeds[0] + '.' + yneeds[1] + ',') + ''; } if (brbit != '') { //alert('brbit=' + brbit); //xneeds[0]-=(xneeds[1] - xneeds[0]); //yneeds[0]-=(yneeds[1] - yneeds[0]); //alert('xneeds[0]=' + xneeds[0]); if (rubberbanding) { document.getElementById('fauxdtext').innerHTML='<div' + classbit + ' style="' + brbit + 'z-index:-89;position:absolute;left:' + Math.floor(eval(Math.min(xneeds[0],xneeds[0]) - ourdist / 2)) + 'px;top:' + Math.floor(eval(Math.min(yneeds[0],yneeds[0]) - ourdist / 2)) + 'px;width:' + ourdist + 'px;height:' + ourdist + 'px;z-index:98;' + bcbit + '"></div>'; } else { document.getElementById('dtext').innerHTML+='<div' + classbit + ' style="' + brbit + 'position:absolute;left:' + Math.floor(eval(Math.min(xneeds[0],xneeds[0]) - ourdist / 2)) + 'px;top:' + Math.floor(eval(Math.min(yneeds[0],yneeds[0]) - ourdist / 2)) + 'px;width:' + ourdist + 'px;height:' + ourdist + 'px;z-index:98;' + bcbit + '"></div>'; } } else { if (rubberbanding) { document.getElementById('fauxdtext').innerHTML='<div' + classbit + ' style="' + brbit + 'z-index:-89;position:absolute;left:' + Math.min(xneeds[0],nx) + 'px;top:' + Math.min(yneeds[0],ny) + 'px;width:' + Math.max(Math.floor(eval(-30 + Math.abs(xneeds[0] - nx))),Math.floor(eval(mone * Math.abs(xneeds[0] - nx)))) + 'px;height:' + Math.max(Math.floor(eval(-30 + Math.abs(yneeds[0] - ny))),Math.floor(eval(mone * Math.abs(yneeds[0] - ny)))) + 'px;z-index:98;' + bcbit + '"></div>'; } else { document.getElementById('dtext').innerHTML+='<div' + classbit + ' style="' + brbit + 'position:absolute;left:' + Math.min(xneeds[0],xneeds[1]) + 'px;top:' + Math.min(yneeds[0],yneeds[1]) + 'px;width:' + Math.abs(xneeds[0] - xneeds[1]) + 'px;height:' + Math.abs(yneeds[0] - yneeds[1]) + 'px;z-index:98;' + bcbit + '"></div>'; } } if (!rubberbanding) { textnum++; xneeds=[]; yneeds=[]; //alert('arest=' + arest); document.getElementById('tdright').innerHTML=" <span id=spemail><a target=_blank href='mailto:?subject=My%20" + cencodename + "%20...%20best%20viewed%20in%20landscape%20...&body=" + encodeURIComponent((document.getElementById('myvenn').src + arest).replace((document.getElementById('myvenn').src + arest).split('?')[0].split('#')[0], document.URL.split('?')[0].split('#')[0])) + "' id=aemail title=Email>📧</a></span> <span id=spsms><a target=_blank onmouseover=\"if (smsee.length == 0 && origsmsurl.indexOf('sms:&') != -1) { smsee=prompt('Please enter SMS number to send to.', ''); if (smsee == null) { smsee=''; } else { origsmsurl=origsmsurl.replace('sms:&','sms:' + smsee + '&'); asmsurl=asmsurl.replace('sms:&','sms:' + smsee + '&'); this.href=asmsurl; } }\" ontouchstart=\"if (smsee.length == 0 && origsmsurl.indexOf('sms:&') != -1) { smsee=prompt('Please enter SMS number to send to.', ''); if (smsee == null) { smsee=''; } else { origsmsurl=origsmsurl.replace('sms:&','sms:' + smsee + '&'); asmsurl=asmsurl.replace('sms:&','sms:' + smsee + '&'); this.href=asmsurl; } }\" href='sms:&body=" + encodeURIComponent((document.getElementById('myvenn').src + arest).replace(document.getElementById('myvenn').src.split('?')[0].split('#')[0], document.URL.split('?')[0].split('#')[0])) + "' id=asms title=SMS>📟</a></span><br><br> <input title=\"\" onclick=\"event.stopPropagation();\" id=ilp onblur=\"waitfortwo(0); lasttext=this.value.replace(/\~\~/g, '<br>'); this.title=lasttext; if (!navigator.userAgent.match(/Android|BlackBerry|iPhone|iPad|iPod|Opera Mini|IEMobile/i)) { this.value=''; } this.placeholder='Click where you want ... ' + lasttext.replace(/\<br\>/g, String.fromCharCode(10)); mvp.setAttribute('content','initial-scale=1'); document.getElementById('myvenn').scrollIntoView();\" placeholder='Enter text and later click place for it on " + decodeURIComponent(cencodename) + " to left (line feed is ~~)' type=text style=width:500px; value=''></input>" + fszbit + "<br><br> <img id=line src='/MarkItUp/line.png' onclick=\"event.stopPropagation(); this.style.border='1px dotted red'; waitfortwo(2);\"></img> <img id=rectangle src='/MarkItUp/rectangle.png' onclick=\"event.stopPropagation(); this.style.border='1px dotted red'; waitfortwo(4);\"></img> <img id=orectangle src='/MarkItUp/orectangle.png' onclick=\"event.stopPropagation(); this.style.border='1px dotted red'; waitfortwo(-4);\"></img> <img id=circle src='/MarkItUp/circlefill.png' onclick=\"event.stopPropagation(); this.style.border='1px dotted red'; waitfortwo(6);\"></img> <img id=ocircle src='/MarkItUp/circle.png' onclick=\"event.stopPropagation(); this.style.border='1px dotted red'; waitfortwo(-5);\"></img> <button id=orerect onclick=\"event.stopPropagation(); this.style.border='1px dotted red'; waitfortwo(8);\" title=\"Zoom in on rectangle you define via two clicks\" style=display:none;>🔎</button>" + lastbit + atend; //alert(1); if (!navigator.userAgent.match(/Android|BlackBerry|iPhone|iPad|iPod|Opera Mini|IEMobile/i)) { document.getElementById('ilp').focus(); } document.getElementById('ilp').placeholder='Enter text and later click place for it on ' + decodeURIComponent(cencodename) + ' to left (line feed is ~~)'; } } else if (curmode == 2 && !rubberbanding) { document.getElementById('line').style.border='1px dashed yellow'; } else if (curmode == -4 && !rubberbanding) { document.getElementById('orectangle').style.border='1px dashed yellow'; } else if (curmode == 4 && !rubberbanding) { document.getElementById('rectangle').style.border='1px dashed yellow'; } else if (curmode == -5 && !rubberbanding) { document.getElementById('ocircle').style.border='1px dashed yellow'; } else if (curmode == 6 && !rubberbanding) { document.getElementById('circle').style.border='1px dashed yellow'; } else if (curmode == 8 && !rubberbanding) { document.getElementById('orerect').style.border='1px dashed yellow'; } } // Rubber banding document.body.addEventListener('mousemove', function(evt){ evt = evt || window.event; evt.preventDefault(); elemLeft = document.getElementById('myvenn').offsetLeft; elemTop = document.getElementById('myvenn').offsetTop; //document.getElementById('myh3').innerHTML+=' ' + elemLeft + ':' + elemTop; //document.getElementById('myh3').innerHTML+=' ' + document.body.scrollLeft + '.' + document.body.scrollTop; if (evt.touches) { if (evt.touches[0].pageX) { //alert('here'); xx = evt.touches[0].pageX + document.body.scrollLeft - elemLeft; yy = evt.touches[0].pageY + document.body.scrollTop - elemTop; if (xx >= 0 && xx <= eval(('' + document.getElementById('myvenn').width).replace('px','')) && yy >= 0 && yy <= eval(('' + document.getElementById('myvenn').height).replace('px',''))) { if (curno == 1 && (lastx != xx || lasty != yy)) { checkforaction(true,xx,yy); } //lastx=xx; //lasty=yy; //alert('x:' + x + ' and y:' + y); } } else { //alert('Here'); xx = evt.touches[0].clientX + document.body.scrollLeft - elemLeft; yy = evt.touches[0].clientY + document.body.scrollTop - elemTop; if (xx >= 0 && xx <= eval(('' + document.getElementById('myvenn').width).replace('px','')) && yy >= 0 && yy <= eval(('' + document.getElementById('myvenn').height).replace('px',''))) { if (curno == 1 && (lastx != xx || lasty != yy)) { checkforaction(true,xx,yy); } //lastx=xx; //lasty=yy; //alert('x:' + x + ' and y:' + y); } } } else if (evt.clientX || ev.clientY) { //alert('HERE'); xx = evt.clientX + document.body.scrollLeft - elemLeft; yy = evt.clientY + document.body.scrollTop - elemTop; if (xx >= 0 && xx <= eval(('' + document.getElementById('myvenn').width).replace('px','')) && yy >= 0 && yy <= eval(('' + document.getElementById('myvenn').height).replace('px',''))) { if (curno == 1 && (lastx != xx || lasty != yy)) { checkforaction(true,xx,yy); } //lastx=xx; //lasty=yy; } } else { //alert('HEre'); xx = evt.pageX + document.body.scrollLeft - elemLeft; yy = evt.pageY + document.body.scrollTop - elemTop; if (xx >= 0 && xx <= eval(('' + document.getElementById('myvenn').width).replace('px','')) && yy >= 0 && yy <= eval(('' + document.getElementById('myvenn').height).replace('px',''))) { if (curno == 1 && (lastx != xx || lasty != yy)) { checkforaction(true,xx,yy); } //lastx=xx; //lasty=yy; } } });
… at least for us (being as we do not want to clobber any pinch or spread gesture ideas, for the user)
is only a really, “nice to have” functionality idea

Even so, achieving even a 95% percent working “rubber band” is like … is like …

Barracking for Hairtie United …
You little beauty, Untied!

change looking for a “touchstart” event, and instead look for a “touchdown” event for a document.body scope (else we might have restricted the “scope” to just document.getEleementById(‘myvenn’) as another approach (and you should note our event.stopPropagation() statements in lots of places as another research point for you)) because we are talking “discrete click” user behaviour we are targeting … as well as …
start checking that the co-ordinates calculated fall into the range of the Google Charts Image Chart image dimensions … doh!

Did you know?

Previous relevant Google Chart Image Chart Circle Annotation Tutorial is shown below.

Google Chart Image Chart Circle Annotation Tutorial

Today, we add …

open circle
filled circle

… annotation possibilities onto the “Broadcast Talk” work in yesterday’s Google Chart Image Chart Broadcast Talk Context Tutorial.

The CSS border-radius property has come to the rescue of many a programmer, saving us from resorting to SVG to display circle or ellipses or arcs of various sorts …

… to team up with WordPress blog 404.php changes …

Previous relevant Google Chart Image Chart Broadcast Talk Context Tutorial is shown below.

Google Chart Image Chart Broadcast Talk Context Tutorial

The progress, today, along the same lines as yesterday’s Google Chart Image Chart Broadcast Talk Tutorial‘s introduction of a “Broadcast Talk” functionality, was to …

improve “Broadcast Talk” context, by adding onto yesterday’s …

presented as an update image still presented and updated periodically

… only display option, with, as of today …
a presenter’s first snapshotted image retained for user display (in case they arrive late to the lesson … tutt tutt) … and …
ImageMagick created animated GIF with slides for just this first image and the most recent image, updated periodically, in bottom right cell of user display …
<?php
if (isset($_POST['canvcont']) && isset($_POST['uniquifier']) && strpos(('?' . $_SERVER['QUERY_STRING']), 'cht=') === false) { if (isset($_POST['uniquifier'])) { $uniquifier=str_replace('+',' ',urldecode($_POST['uniquifier'])); } if ($uniquifier == '') { $uniquifier='_' . rand(0,78654356); file_put_contents($_SERVER['DOCUMENT_ROOT'] . DIRECTORY_SEPARATOR . "presentation" . $uniquifier . ".png", base64_decode( explode('base64,', str_replace(' ','+',urldecode($_POST['canvcont'])))[1])); exec("/usr/local/cpanel/3rdparty/bin/convert -delay 20 -loop 0 " . $_SERVER['DOCUMENT_ROOT'] . DIRECTORY_SEPARATOR . "presentation" . $uniquifier . ".png" . " " . $_SERVER['DOCUMENT_ROOT'] . DIRECTORY_SEPARATOR . "presentation" . $uniquifier . ".gif"); echo "<html><body onload=\"if (parent.document.getElementById('uniquifier')) { if (parent.document.getElementById('uniquifier').value == '') { parent.document.getElementById('uniquifier').value='" . $uniquifier . "'; } }\"></body></html>"; } else { file_put_contents($_SERVER['DOCUMENT_ROOT'] . DIRECTORY_SEPARATOR . "presentation" . $uniquifier . ".png", base64_decode( explode('base64,', str_replace(' ','+',urldecode($_POST['canvcont'])))[1])); exec("rm -f " . $_SERVER['DOCUMENT_ROOT'] . DIRECTORY_SEPARATOR . "presentation" . $uniquifier . ".gif ; /usr/local/cpanel/3rdparty/bin/convert -delay 200 -loop 0 " . $_SERVER['DOCUMENT_ROOT'] . DIRECTORY_SEPARATOR . "presentation_" . $uniquifier . ".png " . $_SERVER['DOCUMENT_ROOT'] . DIRECTORY_SEPARATOR . "presentation" . $uniquifier . ".png" . " " . $_SERVER['DOCUMENT_ROOT'] . DIRECTORY_SEPARATOR . "presentation" . $uniquifier . ".gif"); } exit; }
?>
… and …
images saved as changes are detected gathered, as ever smaller thumbnails, in the top right of four table cells of the user display …
var iijk=0, uniquif=''; snapshots=[], elem=null, elemcontext=null, oimg=null, checkforsquare=2; function canvinit() { var kkii=0, wpx=0, hpx=0; var tdr=document.getElementById('tdtr').getBoundingClientRect(); wpx=eval('' + tdr.width); hpx=eval('' + tdr.height); elem=document.getElementById('agcanvas'); elemcontext=elem.getContext('2d'); elem.width=elem.width; elemcontext.drawImage(document.getElementById('talkimg'),0,0); if (iijk == 0 || ('' + document.getElementById('tdtr').style.backgroundImage).indexOf('rand=0') != -1) { //alert('89 ' + elem.toDataURL().length); //snapshots.push(elem.toDataURL()); iijk=eval(-1 + eval('' + ('' + document.getElementById('tdtr').style.backgroundImage).split('),').length)); document.getElementById('tdtr').style.backgroundImage=('' + document.getElementById('tdtr').style.backgroundImage).replace(('' + document.getElementById('tdtr').style.backgroundImage).split('),')[iijk], '' + 'url(' + elem.toDataURL() + '),' + ('' + document.getElementById('tdtr').style.backgroundImage).split('),')[iijk]).replace('rand=0', 'rand=x'); iijk=eval(0 + eval('' + ('' + document.getElementById('tdtr').style.backgroundImage).split('),').length)); setInterval(canvinit, 9000); } else { elem.width=elem.width; elemcontext.drawImage(document.getElementById('talkimg'),0,0); if (document.body.innerHTML.indexOf(elem.toDataURL()) == -1) { //snapshots.push(elem.toDataURL()); iijk=eval(-1 + eval('' + ('' + document.getElementById('tdtr').style.backgroundImage).split('),').length)); document.getElementById('tdtr').style.backgroundImage=('' + document.getElementById('tdtr').style.backgroundImage).replace(('' + document.getElementById('tdtr').style.backgroundImage).split('),')[iijk], '' + 'url(' + elem.toDataURL() + '),' + ('' + document.getElementById('tdtr').style.backgroundImage).split('),')[iijk]).replace('rand=x','rand=x' + Math.floor(Math.random() * 9)); iijk=eval(0 + eval('' + ('' + document.getElementById('tdtr').style.backgroundImage).split('),').length)); } } var bpx='background-position:;'; var bbpx='background-position:;'; var bsx='background-size:;'; var brx='background-repeat:;'; var xstart=0; var ystart=0; var xxstart=eval('' + tdr.left); var yystart=eval('' + tdr.top); if (iijk > eval(checkforsquare * checkforsquare)) { checkforsquare++; } for (kkii=1; kkii<=iijk; kkii++) { if (bsx.indexOf(':;') != -1) { bsx=bsx.replace(':;', ':' + Math.round(eval(wpx / checkforsquare)) + 'px ' + Math.round(eval(hpx /checkforsquare)) + 'px;'); brx=brx.replace(':;', ':no-repeat;'); bpx=bpx.replace(':;', ':' + Math.round(xstart) + 'px ' + Math.round(ystart) + 'px;'); bbpx=bbpx.replace(':;', ':' + Math.round(xxstart) + 'px ' + Math.round(yystart) + 'px;'); } else { bsx=bsx.replace(';', ',' + Math.round(eval(wpx / checkforsquare)) + 'px ' + Math.round(eval(hpx /checkforsquare)) + 'px;'); brx=brx.replace(';', ',no-repeat;'); bpx=bpx.replace(';', ',' + Math.round(xstart) + 'px ' + Math.round(ystart) + 'px;'); bbpx=bbpx.replace(';', ',' + Math.round(xxstart) + 'px ' + Math.round(yystart) + 'px;'); } if (eval(kkii % checkforsquare) == 0) { xstart=0; xxstart=eval('' + tdr.left); ystart+=eval(hpx / checkforsquare); yystart+=eval(hpx / checkforsquare); } else { xstart+=eval(wpx / checkforsquare); xxstart+=eval(wpx / checkforsquare); } } //alert('iijk=' + iijk + ' ' + bbpx + ' ' + bpx + ' ' + bsx + ' ' + brx); document.getElementById('tdtr').style.backgroundRepeat=brx.split(':')[1]; document.getElementById('tdtr').style.backgroundSize=bsx.split(':')[1]; document.getElementById('tdtr').style.backgroundPosition=bpx.split(':')[1]; //document.body.style.backgroundImage=('' + document.getElementById('tdtr').style.backgroundImage); //document.body.style.backgroundRepeat=brx.split(':')[1]; //document.body.style.backgroundSize=bsx.split(':')[1]; document.body.style.backgroundPosition=bbpx.split(':')[1]; var kdss=bsx.split(':')[1].replace(/\;/g,'').split(','); var idss=bbpx.split(':')[1].replace(/\;/g,'').split(','); var jdss=(('' + document.getElementById('tdtr').style.backgroundImage) + ',').replace(';,',',').replace(/url\(/g,'').replace(/URL\(/g,'').replace(/\&quot\;/g,'').replace(/\"/g,'').split('),'); document.getElementById('idiv').innerHTML=''; var istuff='', laststuff=''; for (var iop=0; iop<idss.length; iop++) { //while (istuff == laststuff) { if (('' + jdss[iop]) != 'undefined' && ('' + jdss[iop]).trim() != '') { if (jdss[iop].trim().indexOf('iVBOR') != -1) { istuff+='<img style="position:absolute;width:' + kdss[iop].split(' ')[0] + ';height:' + kdss[iop].split(' ')[1] + ';left:' + idss[iop].split(' ')[0] + ';top:' + idss[iop].split(' ')[1] + ';" src="data:image/png;base64,iVBOR' + jdss[iop].trim().split('iVBOR')[1] + '"></img>'; } else if (jdss[iop].trim() .indexOf('//') != -1) { istuff+='<img style="position:absolute;width:' + kdss[iop].split(' ')[0] + ';height:' + kdss[iop].split(' ')[1] + ';left:' + idss[iop].split(' ')[0] + ';top:' + idss[iop].split(' ')[1] + ';" src="' + jdss[iop].trim() + '"></img>'; } //} laststuff=istuff; } } document.getElementById('idiv').innerHTML=istuff; }

Previous relevant Google Chart Image Chart Broadcast Talk Tutorial is shown below.

Google Chart Image Chart Broadcast Talk Tutorial

Onto yesterday’s Google Chart Image Chart Statistical Charts Tutorial progress we want to offer …

once a user has that “More Annotation” annotating happening … offer the chance to …
Broadcast … their work as it happens, dynamically …
to an emailee list audience

… and we’re calling this …

Broadcast Talk

… even though it is only visual by nature, presented as an update image still presented and updated periodically. Go figure?! We’re blaming that supper time two back. We’re not sure?!

… featuring our first use of this 404.php in response to a method=POST form call. Verrrrrryyyy interesting!

Previous relevant Google Chart Image Chart Statistical Charts Tutorial is shown below.

Google Chart Image Chart Statistical Charts Tutorial

Line Chart … with its three display options …
1. Even
2. Sparkline
3. Just XY
Bar Chart … with its three display options …
1. Grouped
2. Stacked
3. Overlapped
Candlestick Chart

Previous relevant Google Chart Image Chart Pie Chart Tutorial is shown below.

Google Chart Image Chart Pie Chart Tutorial

As we intimated in yesterday’s Google Chart Image Chart GraphViz Chart Tutorial …

start with an at least two part “inhouse phase” of additional “extra to text” annotation functionality possibilities …

Yes, we are dovetailing with work we’ve done in the past using the excellent …

canvas … element introduced with HTML5 … whereby …
annotations like …
1. scribble … as the default, and various other …
2. discrete click shapes … and …
3. text … including emojis … and …
4. image
… annotating modus operandi

… can be part of the arrangements. It works that the Annotation Helper is opened …

in a new “known about” popup window … looking out for …
parent based “img” element (in the modus operandi we use, calling it, regarding the parent top left image) … so as to be able to …
populate its canvas element with a clone of that calling “img” graphical content … but add into the mix …
menu driven annotation functionality which can change that canvas look and underlying data … and …
the caller can keep track of this and arrange, or not, for these changes to be reflected back at its top left “img” element … the catch being …
the “within range of GET argument” limits are ruined by this introduction of graphical data, and so in agreeing to this, a user forgoes those simpler sharing and annotating functionalities of yesterday’s (and before) work … though your normal image sharing capabilities via the web browser remain in the caller and the called

As well, today, we are introducing new Google Charts Image Chart Pie Chart interfacing, and because this chart type can have the three …

Normal
3D
Concentric

… guises, there was some work to keep us off this street (okay … so we divulged … again) …

Previous relevant Google Chart Image Chart GraphViz Chart Tutorial is shown below.

Google Chart Image Chart GraphViz Chart Tutorial

Today we have two strands of forward progress, onto the progress up to yesterday’s Google Chart Image Chart Scatter Chart Tutorial, they being …

establish a new interfacing to GraphViz Chart …

GraphViz is a package of open source tools for visualizing connectivity graphs. You can create GraphViz graphs using the DOT language and your choice of layout engines.

… a chart looking a bit like Organization Charts …

Org charts are diagrams of a hierarchy of nodes, commonly used to portray superior/subordinate relationships in an organization. A family tree is a type of org chart.
start with an at least two part “inhouse phase” of additional “extra to text” annotation functionality possibilities … just starting with …
1. line
2. open rectangle
3. filled rectangle

… additional functionality, that we may well add to, but being as we feel a change we’ll leave that for another time.

The WordPress blog “404.php” code snippet becomes …

… utilizing that good ol’ PHP GD image library.

We hope you enjoy the …

Mantissa Madness Monday

… coding feel utilized to retain yesterday’s …

&text_n=x,y,Text

Did you know?

HTML hr elements (with a rotation) … and the less kludgy …
HTML div (defining a box with defined dimensions) for a nested SVG element containing the line definition using percentage dimensions

… in the past, for when we needed to do this. But, today, we’d like to thank this great webpage for its suggestion to involve linear gradients …

… in a, basically, CSS solution. Great stuff, thanks!

Previous relevant Google Chart Image Chart Scatter Chart Tutorial is shown below.

Google Chart Image Chart Scatter Chart Tutorial

Today, we bring the Google Charts Image Chart …

Venn Chart interfacing knowledge via yesterday’s Google Chart Image Chart Venn Chart User Text Tutorial … using it to encase some …
Scatter Chart interfacing logic … and along the way fix …
mobile platform User Text issues

Here is our framework for parameterization, here, and into the future …

Did you know?

In this online world with so many platforms and devices and software choices, there is no need to ever be embarrassed by what might seem an obvious feature you’ve missed.

Take the way on macOS, but not iOS, using a web browser to get to YouTube, you can flag that a video should loop. Especially good for …

song obsessions …
earworms you need to salve

… and what about if your shower is taking an awfully long time?! Please be careful with moisture and devices, though, in the bathroom!

How does it happen? Right click the play button, and looping is there as the top option. Now back to that shower song obsession.

Previous relevant Google Chart Image Chart Venn Chart User Text Tutorial is shown below.

Google Chart Image Chart Venn Chart User Text Tutorial

But we would say that.

… given what we learnt in Primary school … or should we say …

“Gryffindor Slytherin Ravenclaw Hufflepuff Junior Business College”

… and, yes, is that you, Aoife? What did you want to point out? After you swallow those Rice Bubbles, that is?! Class is waiting …

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Yes … miss something … and …

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Use your words … okay … missing … don’t worry, the bus will wait … no … there’s no need to point … oh! …

… do you mean …

missing ewe … no … missing you … oh! … missing u … oh! … “Gryffindor Slytherin Ravenclaw Hufflepuff Juniour Business College” … quite so, Aiofe … 3 points for Hufflepuff!

Anyway we needed a fleshed out “function ask” to cater for potential onclick event logic catering for co-ordinates …

… in our changed second draft image_venn.html Google Chart Image Chart Venn Chart interfacing web application you can also try below.

Did you know?

Previous relevant Google Chart Image Chart Venn Chart Interfacing Primer Tutorial is shown below.

Google Chart Image Chart Venn Chart Interfacing Primer Tutorial

The sharing capabilities are good with the Google Charts approach too, given we are creating an HTML image, as our WordPress blog good ol’ 404.php has been woken up to address via …

Yes, all these Image Chart smarts come, essentially, from a “one line” calling URL! Who’d have believed it! Shiver me timbers!

Well, it’s early days with this Venn Chart interfacing where we allow for …

circle (think up to three) definition … and the rest, in this first draft (hoping you’ve done some reading) …
legend and title and colour selection user definitions dumped into a fairly unfriendly “the rest” Javascript prompt entry we ask of the user should they go ahead with the previous definition … and …
sharing and collaboration email and SMS functionality

… we hope you try via our “proof of concept” first draft image_venn.html Google Chart Image Chart Venn Chart interfacing web application you can also try below …

If this was interesting you may be interested in this too.

Posted in eLearning, Event-Driven Programming, Tutorials | Tagged angle, animated gif, annotation, attrribute selector, background image, bar chart, border-radius, box chart, broadcast, candlestick chart, canvas, circle, colour, compound, compound chart, concept, context, CSS, data, degrees, Did you know, discrete, discrete click, div, dropdown, earworm, emoji, encoding, entity, event, event.stopPropagation, GD, gesture, Google Charts, graph, graphical, graphical representation, graphics, GraphViz, GraphViz Chart, guage, GUI, hardcoding, html entity, HTML5, imageellipse, imagefilledellipse, ImageMagick, interface, internationalization, justification, justify, label, line, line chart, linear gradient, loop, looping, macOS, mantissa, mathematics, meter, mobile, mouse, obsession, onclick, ontouchdown, ontouchstart, parameter, parameterization, peer to peer, PHP, pich, pie chart, placeholder, placement, play, play button, popup, popup window, programming, rectangle, relationship, representation, retwaek, rubber band, rubber banding, scatter chart, scribble, scroll, scrolling, song, spread, statistics, stopPropagation, substitution, SVG, ternery, text, textbox, thumbnail, touch, touchdown, tutorial, tweak, user, utf-16, value, venn chart, Venn diagram, video, web browser, window.open, window.opener, YouTube | Leave a comment

Google Chart Image Chart Box Chart Tutorial

Posted on December 6, 2023 by admin

Google Chart Image Chart Box Chart Tutorial

Today we offer new …

Box Chart compound chart arrangements off the Google Charts Image Chart Bar Chart and Line Chart functionalties
Google-O-Meter Chart guage

… interfacings, onto the progress up to yesterday’s Google Chart Image Chart Colour Tutorial.

As such, it’s probably timely to update you with the parameterization up the top of the Javascript code …

… that goes into helping make the changed latest draft image_venn.html Google Chart Image Chart Venn Chart or Scatter Chart or GraphViz Chart or Pie Chart or Line Chart or Bar Chart or Candlestick/Box Chart or Google-O-Meter Chart or Map Chart interfacing web application you can also try below, one of the happiest little vegemites we know.

Previous relevant Google Chart Image Chart Colour Tutorial is shown below.

Google Chart Image Chart Colour Tutorial

colour picker … way user can define an “inhouse annotations” colour … and while we were at it …
as far as text “inhouse annotations” go we’ve added a counterclockwise from the horizon, in degrees, way to define an angle the text should be placed at … and …
we’ve stopped closing off the text font size dropdown too early, allowing the user to mix it up with their annotations, and so …

We now recommend, for those users pushing the boundaries of functionality, to gather all their “inhouse annotations” together before any “graphical canvas annotations” are thought about.

Which begs the question …

Where do you get it?

Well, here, via … dare we say it?! … … via …

Mantissa Madness Monday

Both colour and degree counterclockwise angle became “Mantissa Madness Monday” tragics, a bit like moi, really?

How did we express these two measures?

colour can be derived at the 404.php end via mantissae that are 9 or more long where a number of the form rrrgggbbb is numerical and passed across to 404.php in the y co-ordinate mantissa … while … kind of crazily …
angle can be a set of zeros in the x co-ordinate mantissa represented by zero characters to the length of the angle from 1 to 359 in front of a pre-existant font size (in px) usage, from last “Mantissa Madness Monday” (us getting away with this because no font size should start with a zero)

Oh! We have such fun around here?! Below is PHP WordPress blog 404.php code …

Previous relevant Google Chart Image Chart Rubber Banding Tutorial is shown below.

Google Chart Image Chart Rubber Banding Tutorial

The Javascript clientside idea of “Rubber Banding” …

Rubber banding is a popular technique of drawing geometric primitives such as line, polylines, rectangle, circle and ellipse on the computer screen.

only really a non-mobile prospect …
function checkforaction(rubberbanding,nx,ny) { var bcbit='background-color:rgba(127,127,127,0.5);'; var zeroes=''; var classbit=''; var brbit=''; var ourdist=0; var ioff=(rubberbanding == true ? 1 : 0); var mone=1; curno=eval('' + xneeds.length); if (eval(ioff + curno) >= needtohave) { if (!rubberbanding) { document.getElementById('fauxdtext').innerHTML=''; } if (curmode == 8) { zeroes='00000000'; classbit=' class="crerect" '; } else if (curmode == -5) { //alert(1); bcbit='border:2px solid rgba(127,127,127,0.5);'; if (rubberbanding) { ourdist=eval(2.0 * Math.sqrt((nx - xneeds[0]) * (nx - xneeds[0]) + (ny - yneeds[0]) * (ny - yneeds[0]))); ourdist-=10; bcbit='border:2px solid gray;background-color:transparent;'; } else { ourdist=eval(2.0 * Math.sqrt((xneeds[1] - xneeds[0]) * (xneeds[1] - xneeds[0]) + (yneeds[1] - yneeds[0]) * (yneeds[1] - yneeds[0]))); } //alert(ourdist); //xneeds[1]=Math.floor('' + ourdist); //yneeds[1]=xneeds[1]; brbit='border-radius:' + Math.floor(eval(ourdist / 2)) + 'px;'; zeroes='00000'; classbit=' class="ocirc" '; //alert('open circle'); } else if (curmode == 6) { if (rubberbanding) { ourdist=eval(2.0 * Math.sqrt((nx - xneeds[0]) * (nx - xneeds[0]) + (ny - yneeds[0]) * (ny - yneeds[0]))); ourdist-=10; } else { ourdist=eval(2.0 * Math.sqrt((xneeds[1] - xneeds[0]) * (xneeds[1] - xneeds[0]) + (yneeds[1] - yneeds[0]) * (yneeds[1] - yneeds[0]))); } //xneeds[1]=Math.floor('' + ourdist); //yneeds[1]=xneeds[1]; brbit='border-radius:' + Math.floor(eval(ourdist / 2)) + 'px;'; //bcbit='border:2px solid rgba(127,127,127,0.5);'; zeroes='000000'; classbit=' class="ccirc" '; //alert('closed circle ' + bcbit); } else if (curmode == -4) { if (rubberbanding) { mone=0.90; bcbit='border:2px solid gray;background-color:transparent;'; } else { bcbit='border:2px solid rgba(127,127,127,0.5);'; } zeroes='00'; classbit=' class="orect" '; } else if (curmode == 2) { zeroes='0'; if (rubberbanding) { if (Math.min(xneeds[0],nx) == xneeds[0] && Math.min(yneeds[0],ny) == ny) { // thanks to https://stackoverflow.com/questions/18012420/draw-diagonal-lines-in-div-background-with-css classbit=' class="crossedtotl" '; } else if (Math.min(xneeds[0],nx) == nx && Math.min(yneeds[0],ny) == yneeds[0]) { // thanks to https://stackoverflow.com/questions/18012420/draw-diagonal-lines-in-div-background-with-css classbit=' class="crossedtotl" '; } else { classbit=' class="crossedtotr" '; } } else { if (Math.min(xneeds[0],xneeds[1]) == xneeds[0] && Math.min(yneeds[0],yneeds[1]) == yneeds[1]) { // thanks to https://stackoverflow.com/questions/18012420/draw-diagonal-lines-in-div-background-with-css classbit=' class="crossedtotl" '; } else if (Math.min(xneeds[0],xneeds[1]) == xneeds[1] && Math.min(yneeds[0],yneeds[1]) == yneeds[0]) { // thanks to https://stackoverflow.com/questions/18012420/draw-diagonal-lines-in-div-background-with-css classbit=' class="crossedtotl" '; } else { classbit=' class="crossedtotr" '; } } bcbit=''; } else if (curmode == 4) { if (rubberbanding) { mone=0.90; } zeroes='0000'; classbit=' class="crect" '; } if (!rubberbanding) { curno=-1; //if (brbit != '') { //document.getElementById('dtext').innerHTML+='<div' + classbit + ' style="' + brbit + 'position:absolute;left:' + Math.min(xneeds[0],nx) + 'px;top:' + Math.min(yneeds[0],ny) + 'px;width:' + Math.abs(xneeds[0] - nx) + 'px;height:' + Math.abs(yneeds[0] - ny) + 'px;z-index:98;' + bcbit + '"></div>'; //} else { //document.getElementById('dtext').innerHTML+='<div' + classbit + ' style="' + brbit + 'position:absolute;left:' + Math.min(xneeds[0],xneeds[1]) + 'px;top:' + Math.min(yneeds[0],yneeds[1]) + 'px;width:' + Math.abs(xneeds[0] - xneeds[1]) + 'px;height:' + Math.abs(yneeds[0] - yneeds[1]) + 'px;z-index:98;' + bcbit + '"></div>'; //} document.getElementById('aemail').href+='&text' + textnum + '=' + encodeURIComponent('' + xneeds[0] + '.' + zeroes + xneeds[1] + ',' + yneeds[0] + '.' + yneeds[1] + ',') + ''; document.getElementById('asms').href+='&text' + textnum + '=' + encodeURIComponent('' + xneeds[0] + '.' + zeroes + xneeds[1] + ',' + yneeds[0] + '.' + yneeds[1] + ',') + ''; aemailurl+='&text' + textnum + '=' + encodeURIComponent('' + xneeds[0] + '.' + zeroes + xneeds[1] + ',' + yneeds[0] + '.' + yneeds[1] + ',') + ''; asmsurl+='&text' + textnum + '=' + encodeURIComponent('' + xneeds[0] + '.' + zeroes + xneeds[1] + ',' + yneeds[0] + '.' + yneeds[1] + ',') + ''; arest+='&text' + textnum + '=' + encodeURIComponent('' + xneeds[0] + '.' + zeroes + xneeds[1] + ',' + yneeds[0] + '.' + yneeds[1] + ',') + ''; } if (brbit != '') { //alert('brbit=' + brbit); //xneeds[0]-=(xneeds[1] - xneeds[0]); //yneeds[0]-=(yneeds[1] - yneeds[0]); //alert('xneeds[0]=' + xneeds[0]); if (rubberbanding) { document.getElementById('fauxdtext').innerHTML='<div' + classbit + ' style="' + brbit + 'z-index:-89;position:absolute;left:' + Math.floor(eval(Math.min(xneeds[0],xneeds[0]) - ourdist / 2)) + 'px;top:' + Math.floor(eval(Math.min(yneeds[0],yneeds[0]) - ourdist / 2)) + 'px;width:' + ourdist + 'px;height:' + ourdist + 'px;z-index:98;' + bcbit + '"></div>'; } else { document.getElementById('dtext').innerHTML+='<div' + classbit + ' style="' + brbit + 'position:absolute;left:' + Math.floor(eval(Math.min(xneeds[0],xneeds[0]) - ourdist / 2)) + 'px;top:' + Math.floor(eval(Math.min(yneeds[0],yneeds[0]) - ourdist / 2)) + 'px;width:' + ourdist + 'px;height:' + ourdist + 'px;z-index:98;' + bcbit + '"></div>'; } } else { if (rubberbanding) { document.getElementById('fauxdtext').innerHTML='<div' + classbit + ' style="' + brbit + 'z-index:-89;position:absolute;left:' + Math.min(xneeds[0],nx) + 'px;top:' + Math.min(yneeds[0],ny) + 'px;width:' + Math.max(Math.floor(eval(-30 + Math.abs(xneeds[0] - nx))),Math.floor(eval(mone * Math.abs(xneeds[0] - nx)))) + 'px;height:' + Math.max(Math.floor(eval(-30 + Math.abs(yneeds[0] - ny))),Math.floor(eval(mone * Math.abs(yneeds[0] - ny)))) + 'px;z-index:98;' + bcbit + '"></div>'; } else { document.getElementById('dtext').innerHTML+='<div' + classbit + ' style="' + brbit + 'position:absolute;left:' + Math.min(xneeds[0],xneeds[1]) + 'px;top:' + Math.min(yneeds[0],yneeds[1]) + 'px;width:' + Math.abs(xneeds[0] - xneeds[1]) + 'px;height:' + Math.abs(yneeds[0] - yneeds[1]) + 'px;z-index:98;' + bcbit + '"></div>'; } } if (!rubberbanding) { textnum++; xneeds=[]; yneeds=[]; //alert('arest=' + arest); document.getElementById('tdright').innerHTML=" <span id=spemail><a target=_blank href='mailto:?subject=My%20" + cencodename + "%20...%20best%20viewed%20in%20landscape%20...&body=" + encodeURIComponent((document.getElementById('myvenn').src + arest).replace((document.getElementById('myvenn').src + arest).split('?')[0].split('#')[0], document.URL.split('?')[0].split('#')[0])) + "' id=aemail title=Email>📧</a></span> <span id=spsms><a target=_blank onmouseover=\"if (smsee.length == 0 && origsmsurl.indexOf('sms:&') != -1) { smsee=prompt('Please enter SMS number to send to.', ''); if (smsee == null) { smsee=''; } else { origsmsurl=origsmsurl.replace('sms:&','sms:' + smsee + '&'); asmsurl=asmsurl.replace('sms:&','sms:' + smsee + '&'); this.href=asmsurl; } }\" ontouchstart=\"if (smsee.length == 0 && origsmsurl.indexOf('sms:&') != -1) { smsee=prompt('Please enter SMS number to send to.', ''); if (smsee == null) { smsee=''; } else { origsmsurl=origsmsurl.replace('sms:&','sms:' + smsee + '&'); asmsurl=asmsurl.replace('sms:&','sms:' + smsee + '&'); this.href=asmsurl; } }\" href='sms:&body=" + encodeURIComponent((document.getElementById('myvenn').src + arest).replace(document.getElementById('myvenn').src.split('?')[0].split('#')[0], document.URL.split('?')[0].split('#')[0])) + "' id=asms title=SMS>📟</a></span><br><br> <input title=\"\" onclick=\"event.stopPropagation();\" id=ilp onblur=\"waitfortwo(0); lasttext=this.value.replace(/\~\~/g, '<br>'); this.title=lasttext; if (!navigator.userAgent.match(/Android|BlackBerry|iPhone|iPad|iPod|Opera Mini|IEMobile/i)) { this.value=''; } this.placeholder='Click where you want ... ' + lasttext.replace(/\<br\>/g, String.fromCharCode(10)); mvp.setAttribute('content','initial-scale=1'); document.getElementById('myvenn').scrollIntoView();\" placeholder='Enter text and later click place for it on " + decodeURIComponent(cencodename) + " to left (line feed is ~~)' type=text style=width:500px; value=''></input>" + fszbit + "<br><br> <img id=line src='/MarkItUp/line.png' onclick=\"event.stopPropagation(); this.style.border='1px dotted red'; waitfortwo(2);\"></img> <img id=rectangle src='/MarkItUp/rectangle.png' onclick=\"event.stopPropagation(); this.style.border='1px dotted red'; waitfortwo(4);\"></img> <img id=orectangle src='/MarkItUp/orectangle.png' onclick=\"event.stopPropagation(); this.style.border='1px dotted red'; waitfortwo(-4);\"></img> <img id=circle src='/MarkItUp/circlefill.png' onclick=\"event.stopPropagation(); this.style.border='1px dotted red'; waitfortwo(6);\"></img> <img id=ocircle src='/MarkItUp/circle.png' onclick=\"event.stopPropagation(); this.style.border='1px dotted red'; waitfortwo(-5);\"></img> <button id=orerect onclick=\"event.stopPropagation(); this.style.border='1px dotted red'; waitfortwo(8);\" title=\"Zoom in on rectangle you define via two clicks\" style=display:none;>🔎</button>" + lastbit + atend; //alert(1); if (!navigator.userAgent.match(/Android|BlackBerry|iPhone|iPad|iPod|Opera Mini|IEMobile/i)) { document.getElementById('ilp').focus(); } document.getElementById('ilp').placeholder='Enter text and later click place for it on ' + decodeURIComponent(cencodename) + ' to left (line feed is ~~)'; } } else if (curmode == 2 && !rubberbanding) { document.getElementById('line').style.border='1px dashed yellow'; } else if (curmode == -4 && !rubberbanding) { document.getElementById('orectangle').style.border='1px dashed yellow'; } else if (curmode == 4 && !rubberbanding) { document.getElementById('rectangle').style.border='1px dashed yellow'; } else if (curmode == -5 && !rubberbanding) { document.getElementById('ocircle').style.border='1px dashed yellow'; } else if (curmode == 6 && !rubberbanding) { document.getElementById('circle').style.border='1px dashed yellow'; } else if (curmode == 8 && !rubberbanding) { document.getElementById('orerect').style.border='1px dashed yellow'; } } // Rubber banding document.body.addEventListener('mousemove', function(evt){ evt = evt || window.event; evt.preventDefault(); elemLeft = document.getElementById('myvenn').offsetLeft; elemTop = document.getElementById('myvenn').offsetTop; //document.getElementById('myh3').innerHTML+=' ' + elemLeft + ':' + elemTop; //document.getElementById('myh3').innerHTML+=' ' + document.body.scrollLeft + '.' + document.body.scrollTop; if (evt.touches) { if (evt.touches[0].pageX) { //alert('here'); xx = evt.touches[0].pageX + document.body.scrollLeft - elemLeft; yy = evt.touches[0].pageY + document.body.scrollTop - elemTop; if (xx >= 0 && xx <= eval(('' + document.getElementById('myvenn').width).replace('px','')) && yy >= 0 && yy <= eval(('' + document.getElementById('myvenn').height).replace('px',''))) { if (curno == 1 && (lastx != xx || lasty != yy)) { checkforaction(true,xx,yy); } //lastx=xx; //lasty=yy; //alert('x:' + x + ' and y:' + y); } } else { //alert('Here'); xx = evt.touches[0].clientX + document.body.scrollLeft - elemLeft; yy = evt.touches[0].clientY + document.body.scrollTop - elemTop; if (xx >= 0 && xx <= eval(('' + document.getElementById('myvenn').width).replace('px','')) && yy >= 0 && yy <= eval(('' + document.getElementById('myvenn').height).replace('px',''))) { if (curno == 1 && (lastx != xx || lasty != yy)) { checkforaction(true,xx,yy); } //lastx=xx; //lasty=yy; //alert('x:' + x + ' and y:' + y); } } } else if (evt.clientX || ev.clientY) { //alert('HERE'); xx = evt.clientX + document.body.scrollLeft - elemLeft; yy = evt.clientY + document.body.scrollTop - elemTop; if (xx >= 0 && xx <= eval(('' + document.getElementById('myvenn').width).replace('px','')) && yy >= 0 && yy <= eval(('' + document.getElementById('myvenn').height).replace('px',''))) { if (curno == 1 && (lastx != xx || lasty != yy)) { checkforaction(true,xx,yy); } //lastx=xx; //lasty=yy; } } else { //alert('HEre'); xx = evt.pageX + document.body.scrollLeft - elemLeft; yy = evt.pageY + document.body.scrollTop - elemTop; if (xx >= 0 && xx <= eval(('' + document.getElementById('myvenn').width).replace('px','')) && yy >= 0 && yy <= eval(('' + document.getElementById('myvenn').height).replace('px',''))) { if (curno == 1 && (lastx != xx || lasty != yy)) { checkforaction(true,xx,yy); } //lastx=xx; //lasty=yy; } } });
… at least for us (being as we do not want to clobber any pinch or spread gesture ideas, for the user)
is only a really, “nice to have” functionality idea

Even so, achieving even a 95% percent working “rubber band” is like … is like …

Barracking for Hairtie United …
You little beauty, Untied!

change looking for a “touchstart” event, and instead look for a “touchdown” event for a document.body scope (else we might have restricted the “scope” to just document.getEleementById(‘myvenn’) as another approach (and you should note our event.stopPropagation() statements in lots of places as another research point for you)) because we are talking “discrete click” user behaviour we are targeting … as well as …
start checking that the co-ordinates calculated fall into the range of the Google Charts Image Chart image dimensions … doh!

Did you know?

Previous relevant Google Chart Image Chart Circle Annotation Tutorial is shown below.

Google Chart Image Chart Circle Annotation Tutorial

Today, we add …

open circle
filled circle

… annotation possibilities onto the “Broadcast Talk” work in yesterday’s Google Chart Image Chart Broadcast Talk Context Tutorial.

The CSS border-radius property has come to the rescue of many a programmer, saving us from resorting to SVG to display circle or ellipses or arcs of various sorts …

… to team up with WordPress blog 404.php changes …

Previous relevant Google Chart Image Chart Broadcast Talk Context Tutorial is shown below.

Google Chart Image Chart Broadcast Talk Context Tutorial

The progress, today, along the same lines as yesterday’s Google Chart Image Chart Broadcast Talk Tutorial‘s introduction of a “Broadcast Talk” functionality, was to …

improve “Broadcast Talk” context, by adding onto yesterday’s …

presented as an update image still presented and updated periodically

… only display option, with, as of today …
a presenter’s first snapshotted image retained for user display (in case they arrive late to the lesson … tutt tutt) … and …
ImageMagick created animated GIF with slides for just this first image and the most recent image, updated periodically, in bottom right cell of user display …
<?php
if (isset($_POST['canvcont']) && isset($_POST['uniquifier']) && strpos(('?' . $_SERVER['QUERY_STRING']), 'cht=') === false) { if (isset($_POST['uniquifier'])) { $uniquifier=str_replace('+',' ',urldecode($_POST['uniquifier'])); } if ($uniquifier == '') { $uniquifier='_' . rand(0,78654356); file_put_contents($_SERVER['DOCUMENT_ROOT'] . DIRECTORY_SEPARATOR . "presentation" . $uniquifier . ".png", base64_decode( explode('base64,', str_replace(' ','+',urldecode($_POST['canvcont'])))[1])); exec("/usr/local/cpanel/3rdparty/bin/convert -delay 20 -loop 0 " . $_SERVER['DOCUMENT_ROOT'] . DIRECTORY_SEPARATOR . "presentation" . $uniquifier . ".png" . " " . $_SERVER['DOCUMENT_ROOT'] . DIRECTORY_SEPARATOR . "presentation" . $uniquifier . ".gif"); echo "<html><body onload=\"if (parent.document.getElementById('uniquifier')) { if (parent.document.getElementById('uniquifier').value == '') { parent.document.getElementById('uniquifier').value='" . $uniquifier . "'; } }\"></body></html>"; } else { file_put_contents($_SERVER['DOCUMENT_ROOT'] . DIRECTORY_SEPARATOR . "presentation" . $uniquifier . ".png", base64_decode( explode('base64,', str_replace(' ','+',urldecode($_POST['canvcont'])))[1])); exec("rm -f " . $_SERVER['DOCUMENT_ROOT'] . DIRECTORY_SEPARATOR . "presentation" . $uniquifier . ".gif ; /usr/local/cpanel/3rdparty/bin/convert -delay 200 -loop 0 " . $_SERVER['DOCUMENT_ROOT'] . DIRECTORY_SEPARATOR . "presentation_" . $uniquifier . ".png " . $_SERVER['DOCUMENT_ROOT'] . DIRECTORY_SEPARATOR . "presentation" . $uniquifier . ".png" . " " . $_SERVER['DOCUMENT_ROOT'] . DIRECTORY_SEPARATOR . "presentation" . $uniquifier . ".gif"); } exit; }
?>
… and …
images saved as changes are detected gathered, as ever smaller thumbnails, in the top right of four table cells of the user display …
var iijk=0, uniquif=''; snapshots=[], elem=null, elemcontext=null, oimg=null, checkforsquare=2; function canvinit() { var kkii=0, wpx=0, hpx=0; var tdr=document.getElementById('tdtr').getBoundingClientRect(); wpx=eval('' + tdr.width); hpx=eval('' + tdr.height); elem=document.getElementById('agcanvas'); elemcontext=elem.getContext('2d'); elem.width=elem.width; elemcontext.drawImage(document.getElementById('talkimg'),0,0); if (iijk == 0 || ('' + document.getElementById('tdtr').style.backgroundImage).indexOf('rand=0') != -1) { //alert('89 ' + elem.toDataURL().length); //snapshots.push(elem.toDataURL()); iijk=eval(-1 + eval('' + ('' + document.getElementById('tdtr').style.backgroundImage).split('),').length)); document.getElementById('tdtr').style.backgroundImage=('' + document.getElementById('tdtr').style.backgroundImage).replace(('' + document.getElementById('tdtr').style.backgroundImage).split('),')[iijk], '' + 'url(' + elem.toDataURL() + '),' + ('' + document.getElementById('tdtr').style.backgroundImage).split('),')[iijk]).replace('rand=0', 'rand=x'); iijk=eval(0 + eval('' + ('' + document.getElementById('tdtr').style.backgroundImage).split('),').length)); setInterval(canvinit, 9000); } else { elem.width=elem.width; elemcontext.drawImage(document.getElementById('talkimg'),0,0); if (document.body.innerHTML.indexOf(elem.toDataURL()) == -1) { //snapshots.push(elem.toDataURL()); iijk=eval(-1 + eval('' + ('' + document.getElementById('tdtr').style.backgroundImage).split('),').length)); document.getElementById('tdtr').style.backgroundImage=('' + document.getElementById('tdtr').style.backgroundImage).replace(('' + document.getElementById('tdtr').style.backgroundImage).split('),')[iijk], '' + 'url(' + elem.toDataURL() + '),' + ('' + document.getElementById('tdtr').style.backgroundImage).split('),')[iijk]).replace('rand=x','rand=x' + Math.floor(Math.random() * 9)); iijk=eval(0 + eval('' + ('' + document.getElementById('tdtr').style.backgroundImage).split('),').length)); } } var bpx='background-position:;'; var bbpx='background-position:;'; var bsx='background-size:;'; var brx='background-repeat:;'; var xstart=0; var ystart=0; var xxstart=eval('' + tdr.left); var yystart=eval('' + tdr.top); if (iijk > eval(checkforsquare * checkforsquare)) { checkforsquare++; } for (kkii=1; kkii<=iijk; kkii++) { if (bsx.indexOf(':;') != -1) { bsx=bsx.replace(':;', ':' + Math.round(eval(wpx / checkforsquare)) + 'px ' + Math.round(eval(hpx /checkforsquare)) + 'px;'); brx=brx.replace(':;', ':no-repeat;'); bpx=bpx.replace(':;', ':' + Math.round(xstart) + 'px ' + Math.round(ystart) + 'px;'); bbpx=bbpx.replace(':;', ':' + Math.round(xxstart) + 'px ' + Math.round(yystart) + 'px;'); } else { bsx=bsx.replace(';', ',' + Math.round(eval(wpx / checkforsquare)) + 'px ' + Math.round(eval(hpx /checkforsquare)) + 'px;'); brx=brx.replace(';', ',no-repeat;'); bpx=bpx.replace(';', ',' + Math.round(xstart) + 'px ' + Math.round(ystart) + 'px;'); bbpx=bbpx.replace(';', ',' + Math.round(xxstart) + 'px ' + Math.round(yystart) + 'px;'); } if (eval(kkii % checkforsquare) == 0) { xstart=0; xxstart=eval('' + tdr.left); ystart+=eval(hpx / checkforsquare); yystart+=eval(hpx / checkforsquare); } else { xstart+=eval(wpx / checkforsquare); xxstart+=eval(wpx / checkforsquare); } } //alert('iijk=' + iijk + ' ' + bbpx + ' ' + bpx + ' ' + bsx + ' ' + brx); document.getElementById('tdtr').style.backgroundRepeat=brx.split(':')[1]; document.getElementById('tdtr').style.backgroundSize=bsx.split(':')[1]; document.getElementById('tdtr').style.backgroundPosition=bpx.split(':')[1]; //document.body.style.backgroundImage=('' + document.getElementById('tdtr').style.backgroundImage); //document.body.style.backgroundRepeat=brx.split(':')[1]; //document.body.style.backgroundSize=bsx.split(':')[1]; document.body.style.backgroundPosition=bbpx.split(':')[1]; var kdss=bsx.split(':')[1].replace(/\;/g,'').split(','); var idss=bbpx.split(':')[1].replace(/\;/g,'').split(','); var jdss=(('' + document.getElementById('tdtr').style.backgroundImage) + ',').replace(';,',',').replace(/url\(/g,'').replace(/URL\(/g,'').replace(/\&quot\;/g,'').replace(/\"/g,'').split('),'); document.getElementById('idiv').innerHTML=''; var istuff='', laststuff=''; for (var iop=0; iop<idss.length; iop++) { //while (istuff == laststuff) { if (('' + jdss[iop]) != 'undefined' && ('' + jdss[iop]).trim() != '') { if (jdss[iop].trim().indexOf('iVBOR') != -1) { istuff+='<img style="position:absolute;width:' + kdss[iop].split(' ')[0] + ';height:' + kdss[iop].split(' ')[1] + ';left:' + idss[iop].split(' ')[0] + ';top:' + idss[iop].split(' ')[1] + ';" src="data:image/png;base64,iVBOR' + jdss[iop].trim().split('iVBOR')[1] + '"></img>'; } else if (jdss[iop].trim() .indexOf('//') != -1) { istuff+='<img style="position:absolute;width:' + kdss[iop].split(' ')[0] + ';height:' + kdss[iop].split(' ')[1] + ';left:' + idss[iop].split(' ')[0] + ';top:' + idss[iop].split(' ')[1] + ';" src="' + jdss[iop].trim() + '"></img>'; } //} laststuff=istuff; } } document.getElementById('idiv').innerHTML=istuff; }

Previous relevant Google Chart Image Chart Broadcast Talk Tutorial is shown below.

Google Chart Image Chart Broadcast Talk Tutorial

Onto yesterday’s Google Chart Image Chart Statistical Charts Tutorial progress we want to offer …

once a user has that “More Annotation” annotating happening … offer the chance to …
Broadcast … their work as it happens, dynamically …
to an emailee list audience

… and we’re calling this …

Broadcast Talk

… even though it is only visual by nature, presented as an update image still presented and updated periodically. Go figure?! We’re blaming that supper time two back. We’re not sure?!

… featuring our first use of this 404.php in response to a method=POST form call. Verrrrrryyyy interesting!

Previous relevant Google Chart Image Chart Statistical Charts Tutorial is shown below.

Google Chart Image Chart Statistical Charts Tutorial

Line Chart … with its three display options …
1. Even
2. Sparkline
3. Just XY
Bar Chart … with its three display options …
1. Grouped
2. Stacked
3. Overlapped
Candlestick Chart