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36 lines
1.9 KiB
HTML
36 lines
1.9 KiB
HTML
<!doctype HTML>
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<html>
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<head>
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<title>HTML5 Canvas Test: bezierCurveTo() must ensure subpaths</title>
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<link rel="match" href="canvas_complexshapes_beziercurveto_001-ref.htm">
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<link rel="author" title="Microsoft" href="http://www.microsoft.com" />
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<link rel="help" href="http://www.w3.org/TR/2dcontext/#dom-context-2d-beziercurveto" />
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<meta name="assert" content="bezierCurveTo(cp1x, cp1y, cp2x, cp2y, x, y) must ensure there is a subpath for the point (cp1x,cp1y) if the context has no subpaths, then it must connect the last point in the subpath to the point (x,y)." />
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<script type="text/javascript">
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function runTest()
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{
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var canvas = document.getElementById("canvas1");
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var ctx = canvas.getContext("2d");
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// Since the canvas has no subpaths, a virtual moveTo must be performed to (65,25) before creating the bezier.
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ctx.bezierCurveTo(65, 25, 65, 25, 65, 65);
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ctx.stroke();
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ctx.beginPath();
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// Since the canvas has no subpaths, a virtual moveTo must be performed to (35,25) before creating the bezier.
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ctx.bezierCurveTo(35, 25, 35, 25, 35, 65);
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ctx.stroke();
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ctx.beginPath();
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// Since the canvas has no subpaths, a virtual moveTo must be performed to (0,75) before creating the bezier.
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ctx.bezierCurveTo(0, 75, 50, 150, 100, 75);
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ctx.stroke();
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}
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</script>
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</head>
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<body onload="runTest()">
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<p>Description: bezierCurveTo(cp1x, cp1y, cp2x, cp2y, x, y) must ensure there is a subpath for the point (cp1x,cp1y) if the context has no subpaths, then it must connect the last point in the subpath to the point (x,y).</p>
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<canvas id="canvas1" width="300" height="150">Browser does not support HTML5 Canvas.</canvas>
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</body>
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</html>
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