javascript - Resize HTML5 canvas to fit window - Stack Overflow
Nov 3, 2009 · How can I automatically scale the HTML5 <canvas> element to fit the page? For example, I can get a <div> to scale by setting the height and width properties to 100%, but a …
javascript - How to clear the canvas for redrawing - Stack Overflow
After experimenting with composite operations and drawing images on the canvas I'm now trying to remove images and compositing. How do I do this? I need to clear the canvas for redrawing other ima...
javascript - How do I add a simple onClick event handler to a canvas ...
Therefore, to get a click event on a canvas element (shape), you need to capture click events on the canvas HTML element and use some math to determine which element was clicked, provided you …
Resize image with javascript canvas (smoothly) - Stack Overflow
Oct 9, 2013 · I'm trying to resize some images with canvas but I'm clueless on how to smoothen them. On photoshop, browsers etc.. there are a few algorithms they use (e.g. bicubic, bilinear) but I don't …
javascript - Real mouse position in canvas - Stack Overflow
Jun 16, 2013 · I'm trying to draw with the mouse over a HTML5 canvas, but the only way that it seems to work well is if the canvas is in the position 0,0 (upper left corner) if I change the canvas position, for s...
javascript - How do I get the width and height of a HTML5 canvas ...
Oct 27, 2010 · How can i get the width and height of the canvas element in JavaScript? Also, what is the "context" of the canvas I keep reading about?
javascript - Getting mouse location in canvas - Stack Overflow
May 31, 2014 · Is there a way to get the location mouse inside a <canvas> tag? I want the location relative to to the upper right corner of the <canvas>, not the entire page.
Capture HTML canvas as GIF/JPG/PNG/PDF? - Stack Overflow
May 29, 2009 · Is it possible to capture or print what's displayed in an HTML canvas as an image or PDF? I'd like to generate an image via canvas and be able to generate a PNG from that image.
javascript - How do I get the coordinates of a mouse click on a canvas ...
Sep 11, 2008 · What's the simplest way to add a click event handler to a canvas element that will return the x and y coordinates of the click (relative to the canvas element)? No legacy browser compatibility …
What's the best way to set a single pixel in an HTML5 canvas?
Apr 14, 2017 · The HTML5 Canvas has no method for explicitly setting a single pixel. It might be possible to set a pixel using a very short line, but then antialiasing and line caps might interfere. …