![]() ![]() ![]() Var canvas = document.querySelector('canvas') The reference is there to modify the element itself (for example resize it) and the context gives you the API to modify it. To work with canvas, you need two things: a reference to the canvas element and one to its context. The HTML needed for the examples in this article is basic: Once you understand it, this is a very powerful feature, though.įor this purpose here, we won't need the whole API, just a few parts of it. Furthermore, it has a dynamic coordinate system, which is quite a brain-teaser the first time you use it. It has many ways to manipulate your brush and the fill you are using. It allows you to paint on the canvas using rectangles, lines, arcs and gradients. The canvas API is rudimentary, but also powerful. It also means that social media sites like Facebook index it and show the image as the thumbnail. This not only makes people happier who can not change their browser. When I use canvas for animations I tend to provide a static image as the fallback. Is not something we should consider good fallback content. PAINT CANVAS PNG UPGRADEQuick aside: "This product uses canvas and needs JavaScript and your browser doesn't support it, upgrade to something useful, you monkey" Of course, it is still good to have it in your document as you can provide fallback content inside it. So, it's role in markup is to be a placeholder for functionality that is relying on JS. It does exactly nothing without JavaScript interaction. The canvas element is a weird one in HTML. Originally, I planned to create a fiddle for each example, but I have no internet right now. PAINT CANVAS PNG DOWNLOADThe whole article and demos is hosted on GitHub, so feel free to download and play with the examples. In this article, I will explain how I did some of that, repeat some canvas basics and show simpler examples of the editor features. Save the logo in original or double size as a PNG.Inspect the logo (zooming, seeing the colour under the cursor).Create a logo using variable letter and word spacing.You can see the " Logo-O-Matic" online (and the source is of course available on GitHub). So I created a much more bells and whistles version. Now I thought it would be fun to brush this up and play with it. I wrote this old version in PHP using GD and moved it to use canvas and work client-side some time ago. PAINT CANVAS PNG GENERATORMany years ago (15, to be exact) I created a logo generator that allows you to put together a logo from a charset pixeled on a C64.
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