Canvas- Draw Polygons with Shadow Effect
Written by 8 June 2013
Polygons are base of other structures in 2D graphics. HTML5 canvas element with JavaScript let you create these objects easily and different effects can be added to them. Below, we have drawn a colored triangle inside a square, both with shadow effect. Shadows can also be managed in HTML5, for example their distance from the shapes and color can be set. Enjoy!
Code Snippet:
<!-- this script is provided by www.html5freecode.com coded by: Kerixa Inc. -->
<!-- This Script is from www.html5freecode.com, Coded by: Kerixa Inc-->
<br>
<canvas id="myCanvas" width="400" height="150"></canvas>
<script>
var cnv = document.getElementById('myCanvas')
var ctx = cnv.getContext('2d')
ctx.beginPath()
ctx.moveTo(50, 10)
ctx.lineTo(250, 10)
ctx.lineTo(250, 100)
ctx.lineTo(50, 100)
ctx.closePath()
ctx.shadowBlur = 5
ctx.shadowColor= "rgba(100,100,100,.4)"
ctx.shadowOffsetX = ctx.shadowOffsetY = 5
ctx.strokeStyle= "blue"
ctx.lineWidth= 8
ctx.stroke()
ctx.beginPath()
ctx.moveTo(150, 30)
ctx.lineTo(100, 70)
ctx.lineTo(200, 70)
ctx.shadowBlur = 5
ctx.closePath()
ctx.shadowColor= "rgba(100,100,100,.4)"
ctx.shadowOffsetX = ctx.shadowOffsetY = 5
ctx.fillStyle= "pink"
ctx.lineWidth= 8
ctx.stroke()
ctx.fill()
</script>
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