зеркало из https://github.com/mozilla/gecko-dev.git
38 строки
968 B
HTML
38 строки
968 B
HTML
<!--
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Any copyright is dedicated to the Public Domain.
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http://creativecommons.org/publicdomain/zero/1.0/
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-->
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<head>
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<title>Reference for gradient</title>
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<!-- From https://bugzilla.mozilla.org/show_bug.cgi?id=441780 -->
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</head>
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<body onload="go()">
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<canvas width="400" height="400"></canvas>
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<style>
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* { margin: 0; }
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</style>
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<script>
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function go() {
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let canvas = document.querySelector('canvas');
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let ctx = canvas.getContext('2d');
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function createCircleWithGradient(x, y, r, fx, fy) {
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let gradient = ctx.createRadialGradient(fx, y, 0, x, y, r);
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gradient.addColorStop(0, 'lime');
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gradient.addColorStop(1, 'red');
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ctx.beginPath();
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ctx.arc(x, y, 50, 0, 2 * Math.PI);
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ctx.fillStyle = gradient;
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ctx.fill();
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}
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createCircleWithGradient(100, 100, 50, 50);
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createCircleWithGradient(100, 200, 40, 60);
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createCircleWithGradient(200, 100, 50, 250);
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createCircleWithGradient(200, 200, 70, 280);
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}
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</script>
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</body>
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