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Tag Archives: data url
Canvas Methods GetContext Method Tutorial
A lot of canvas element Javascript coding, we find, starts something like … var cnv=document.getElementById(“mycanvas”); var ctx=cnv.getContext(“2d”); … because we normally associate the canvas element with a 2 dimensional woooooooorrrrrrlllllldddd view, as with the recent Canvas Methods ToDataURL Method Tutorial. … Continue reading
Posted in eLearning, Event-Driven Programming, Tutorials
Tagged 2D, 3D, API, canvas, context, crop, cropping, data uri, data url, drawImage, graphics, HTML, HTML5, image, Javascript, method, OOP, position, positioning, programming, scale, scaling, slice, slicing, toDataURL, tutorial, video, web browser, WebGL, WebGL API
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Canvas Methods ToDataURL Method Tutorial
The recent Canvas Methods DrawImage Method Tutorial‘s … [canvasContext].drawImage method user forms … is joined today by the very useful [canvas].toDataURL method user forms … … as a means by which those “platform independent” (but sizeable) data URI representations of … Continue reading
What I find most interesting here is how honestly the post names the hard part: getting focus to work with [element].click() and [element].blur() is the kind of detail that looks trivial until you actually try to drive a page this way. The single-row table that deliberately overflows to the right also makes sense as a design choice, since a radio playlist needs to be scrolled through rather than squeezed into one screen. And the payoff — clicking one song link and having the songs play in sequence and loop back through the list — is a neat reward for all that plumbing with the audio-only YouTube player.