shadowBlur property
Gets or sets the current level of blur that is applied to shadows.
This property is read/write.
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Syntax
| JavaScript | |
|---|
Property values
Type: number
The amount of blur that is applied to shadows.
Standards information
- HTML Canvas 2D Context, Section 7
Examples
The following code example creates a series of squares that have different degrees of shadow blur.
<html> <head> <title>ShadowBlur example</title> <script type="text/javascript"> function draw() { var canvas = document.getElementById("MyCanvas"); if (canvas.getContext) { var ctx = canvas.getContext("2d"); ctx.lineWidth = "3"; ctx.strokeStyle = "blue"; // Define the shadow parameters. ctx.shadowColor = "black"; ctx.shadowOffsetX = "10"; ctx.shadowOffsetY = "10"; // Change the blur value. ctx.shadowBlur = "0"; ctx.strokeRect(25, 25, 200, 200); ctx.shadowBlur = "5"; ctx.strokeRect(100, 100, 200, 200); ctx.shadowBlur = "10"; ctx.strokeRect(175, 175, 200, 200); ctx.shadowBlur = "15"; ctx.strokeRect(250, 250, 200, 200); ctx.shadowBlur = "20"; ctx.strokeRect(325, 325, 200, 200); } } </script> </head> <body onload="draw();"> <canvas id="MyCanvas" width="600" height="600">This browser or document mode doesn't support canvas</canvas> </body> </html>
See also
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