26 lines
583 B
HTML
26 lines
583 B
HTML
<!DOCTYPE html>
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<html>
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<body>
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<canvas id ="canvas"></canvas>
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<script>
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var canvas = document.getElementById('canvas');
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var ctx = canvas.getContext("2d");
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// Adjust the canvas to get highdpi rendering.
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canvas.style.width = '270px';
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canvas.style.height = '275px';
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canvas.width = 270 * devicePixelRatio;
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canvas.height = 275 * devicePixelRatio;
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ctx.scale(devicePixelRatio, devicePixelRatio);
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var fillW = 250;
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var fillH = 50;
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ctx.beginPath();
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ctx.rect(0, 0, fillW, fillH);
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ctx.closePath();
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ctx.clip();
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ctx.fillStyle = 'green';
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ctx.fillRect(0, 0, fillW, fillH);
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</script>
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</body>
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</html>
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