Introduction to HTML 5 Canvas
HTML 5 introduces <canvas> as a new element mainly to draw graphics using Javascripts. It can handle many tasks like a simple graphical tool such as drawing graphs, making photo compositions and creating basic animations.
This tutorial step by step describes how to implement canvas element in WhatWG web application or HTML 5. <canvas> element is not very hard to use but it is necessary for you to know the basics of HTML and Javascript.
What <canvas> element is for?
Representing simple graphs or diagrams, interesting user interfaces, simple animations, charts and graphs drawing, embedded drawing application and enhanced features from CSS limitations.
What features in <canvas> element?
- Drawing tools: Rectangles, Arcs, Paths and Line drawing, Bezier and Quadratic Curves
- Effects: Fills and Strokes, Shadows, Linear and radial gradients, Alpha transparency and Compositing
- Transformations: Scaling, Rotation, Translation, Transformation matrix
- Data in and out: Loading external pictures by link or URL, data URI or other canvases, retrieving a PNG representation of a canvas as data URI
Note: One of the very useful cheat sheet created by nihilogic.dk that you can use:
HTML5 Canvas Cheat Sheet by nihilogic.dk
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