geographicals | Robert James Metcalfe Blog

Canvas Annotation Email Attachment Image Fit Tutorial

There is still more to do with regard to image manipulations functionality regarding our “Canvas Annotation Email Attachment” and “Clickaround” web applications. We want to be able to offer image scaling via user defined click or touch event outcomes on … Continue reading →

Canvas Annotation Email Attachment Transparency Tutorial

We’ve thought of some more useful functionality regarding our “Canvas Annotation Email Attachment” and “Clickaround” web applications. To explore possibilities here going forward, and with regard to ideas regarding genericization possibilities, which aren’t a straightforward “yes” decision for today’s ideas. … Continue reading →

Canvas Clickaround Where Is Primer Tutorial

Today’s web application work, yet again, revolves around our “Clickaround” series of blog postings, but this time, unlike yesterday’s Canvas Annotation Email Attachment Scale and Clip Tutorial, the major changes are not made to external Javascript (such as world.js), but, … Continue reading →

PHP Geographicals Makeover Primer Tutorial

A couple of days ago, when we added PHP Earth Rotational Speed Primer Tutorial as shown below, to our blogroll mix, it got us relooking at our Geographicals Suite of Web Applications at this blog that use this live run … Continue reading →

PHP Earth Rotational Speed Primer Tutorial

We discovered a way to calculate the Earth’s rotational speed for a given latitude. When you see how fast we’re moving relative to somebody still in space you’ll be amazed and think gravity is pretty cool. Even if you’re standing … Continue reading →

Google Chart Intensity Chart Select Event Tutorial

We move from the “when” to the “where” (of Google Chart Annotated Timeline Select Event Tutorial below) with our Google Chart synergies today. This came about when trying to add some ‘select’ event logic to our Google Chart Intensity Chart … Continue reading →

Google Chart Email Post Tutorial

Yesterday’s Google Chart Select Event Calendar Timeline Post Tutorial as shown below, got us thinking about Google Graphs API, or Google Chart Tools, web and mobile applications dealing with large amounts of data, and we approached this by … in … Continue reading →

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Latest Comments
1. admin on Tabular Single Row Radio Play TutorialOctober 12, 2026
  Thanks. Since then, a Shower Songs project at https://www.rjmprogramming.com.au/HTMLCSS/shower_songs.html is an improvement regarding "Radio Play" on mobile platforms.
2. LTX 2.3 Free on Tabular Single Row Radio Play TutorialOctober 12, 2026
  This is a thoughtful example of using a single-row layout and scroll behavior to reveal media progressively. I especially liked the way the tutorial ties the gallery to real interaction details rather than treating the UI as a static mockup. For readers experimenting with the next stage of visual prototyping, LTX 2.3 Free collects prompt examples and workflow guidance for planning AI video scenes; the same attention to camera movement and timing is useful when turning a storyboard into motion.
3. Marcus Ellery on Tabular Single Row Radio Play TutorialOctober 12, 2026
  The focus juggling with click() and blur() sounds painful. I ran into the same thing chaining YouTube iframes, the browser keeps handing focus back to whichever player was touched last. Keeping the window small and off to the side is a neat workaround. Any plan to bring Radio Play to mobile?
4. Sean Zhang on Word SearchSeptember 17, 2026
  Word search is such a good project size — enough logic (grid generation, word placement, collision checking) to stay interesting, but still shippable in an afternoon. I came to these kinds of puzzles from the canvas-game side, where the bottleneck turned out to be art assets rather than code; drawing the same character walking in four directions by hand was the worst part, which is why I ended up building a tool that generates walk-cycle sprite sheet candidates from a single reference image. Enjoyed reading how you approached this one.
5. Alex.X on Word SearchSeptember 17, 2026
  Seeing grammatical terms such as Adjective and Adverb alongside abbreviations such as API highlights how different kinds of words need different explanations. For learners, a one-sentence definition and a short usage example would help distinguish a word's meaning from merely recognizing its spelling. It would also be useful to distinguish an abbreviation's expansion from what it means in context.

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Tag Archives: geographicals

Canvas Annotation Email Attachment User Acceptance Tutorial

Canvas Annotation Email Attachment Image Fit Tutorial

Canvas Annotation Email Attachment Transparency Tutorial

Canvas Clickaround Where Is Primer Tutorial

PHP Geographicals Makeover Primer Tutorial

PHP Earth Rotational Speed Primer Tutorial

Google Chart Intensity Chart Select Event Tutorial

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