Canvas in html5
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The canvas element allows rendering of 2D shapes and images dynamically using scripting languages like JavaScript. It was initially introduced by Apple in 2004 and later adopted by other browsers in 2005. The canvas element is defined using width and height attributes in HTML and the HTML5 Canvas API is used to develop graphics on the canvas. JavaScript can be used to draw graphs, animations and photo compositions on the <canvas> element.
Canvas in html5
- 2. The canvas element is part of HTML5 which allows to render 2D shapes and bitmap images in dynamic manner.<canvas> tag is an HTML5 element which is used to draw graphics using scripting language.
- 3. Canvas element was initially introduced by Apple for the Mac OS X WebKit component in 2004. Later on in 2005 it was taken in version 1.8 of Gecko browser Gecko (layout engine) Gecko is a free and open source layout engine used in many applications developed by Mozilla Foundation Now almost all major browser support the canvas element.To use canvas element, you need a basic idea about HTML and Javascript.
- 4. The canvas element is defined using width and height attributes in HTML. Now HTML5 Canvas API is used for developing a canvas block. The canvas element supports a 2 dimensional drawing surface which you can develop with JavaScript. < canvas > element in HTML5 gives an easy and effective way to draw graphics using JavaScript. It is used to draw graphs, make photo compositions or do some kind of animations in object.
- 5. Let’s see the simple < canvas > element syntax withtwo specific attributes width and height only.Also with the core HTML5 attributes like id. <canvas id="mycanvas" width="100" height="100"></canvas>
- 6. Here is the simple example on using < canvas > element in HTML5. <canvas id="example" width="200" height="20 0“></canvas> This text is displayed if your browser does not s upport HTML5 Canvas.
- 7. You can easily get that < canvas > element in the DOM using getElementById() method of Javascript using following code: var canvas = document.getElementById("mycanvas");
- 8. Let’s see the code snippet with using of it you can draw on the canvas. For that you need to use Javascript code as follows var example = document.getElementById('example'); var context = example.getContext('2d'); context.fillStyle = "rgb(255,0,0)"; context.fillRect(30, 30, 50, 50);
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