jsclip.html
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<!DOCTYPE html>
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<html>
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<body>
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<canvas id="myCanvas" width="40" height="40" style="border:1px solid black;"> |
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Your browser does not support the HTML5 canvas tag.</canvas>
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<script>
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var c = document.getElementById("myCanvas");
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var ctx = c.getContext("2d");
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// Clip a rectangular area
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ctx.rect(2, 2, 10, 10);
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ctx.clip();
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// Draw red rectangle after clip()
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ctx.fillStyle = "red";
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ctx.fillRect(0, 0, 8, 8);
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</script>
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<canvas id="myCanvas2" width="40" height="40" style="border:1px solid black;"> |
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Your browser does not support the HTML5 canvas tag.</canvas>
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<script>
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var c = document.getElementById("myCanvas2");
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var ctx = c.getContext("2d");
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ctx.translate(0.5, 0.5);
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// Clip a rectangular area
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ctx.rect(2, 2, 10, 10);
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ctx.clip();
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// Draw red rectangle after clip()
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ctx.fillStyle = "red";
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ctx.fillRect(0, 0, 8.5, 8.5);
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</script>
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</body>
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</html>
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