Html5--canvas Label Use

Canvas has several ways to draw paths, rectangles, circles, characters, and add images.

The canvas element itself is not capable of drawing. All the drawing work must be done inside JavaScript

<script type= "Text/javascript" >var C=document.getelementbyid ("MyCanvas"); var cxt=c.getcontext ("2d"); Cxt.fillstyle= "#FF0000"; Cxt.fillrect (0,0,150,75);</script>

1. JavaScript uses ID to find the canvas element:

var C=document.getelementbyid ("MyCanvas");

2. Create a Context object:

GetContext ("2d") objects are built-in HTML5 objects that have a variety of drawing paths, rectangles, circles, characters, and methods for adding images.

3. The following two lines of code draw a red rectangle:

The FillStyle method dyes it red, and the FillRect method specifies the shape, position, and size.

Html5--canvas Label Use