HTML canvas clip() Method clip of a rectangular region

Introduction

Clip of a rectangular region of 200*120 pixels from the canvas.

Then, draw a red rectangle.

Only the part of the red rectangle that is inside the clipped area is visible:

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<!DOCTYPE html>
<html>
<body>

<span>Without clip():</span>
<canvas id="myCanvas" width="300" height="180" style="border:1px solid #d3d3d3;">
Your browser does not support the HTML5 canvas tag.</canvas>

<script>
var c = document.getElementById("myCanvas");
var ctx = c.getContext("2d");
// Draw a rectangle
ctx.rect(50, 20, 200, 120);/*w  ww.j  a  v  a  2s.  c  om*/
ctx.stroke();
// Draw red rectangle
ctx.fillStyle = "red";
ctx.fillRect(0, 0, 150, 100);</script>

<span>With clip():</span>
<canvas id="myCanvas2" width="300" height="180" style="border:1px solid #d3d3d3;">
Your browser does not support the HTML5 canvas tag.</canvas>

<script>
var c = document.getElementById("myCanvas2");
var ctx = c.getContext("2d");
// Clip a rectangular area
ctx.rect(50, 20, 200, 120);
ctx.stroke();
ctx.clip();
// Draw red rectangle after clip()
ctx.fillStyle = "red";
ctx.fillRect(0, 0, 150, 100);
</script>

</body>
</html>

The clip() method clips a region from the original canvas.

Once a region is clipped, all drawing will be limited to the clipped region. 

context.clip();



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