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With the newly supported fuzzy matching in our test-web runner, we can now define the expected maximum color channel and pixel count errors per failing test and set a baseline they should not exceed. The figures I added to these tests all come from my macOS M4 machine. Most discrepancies seem to come from color calculations being slightly off.
39 lines
1.1 KiB
HTML
39 lines
1.1 KiB
HTML
<!DOCTYPE html>
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<link rel="match" href="../expected/canvas-arcs-and-ellipses-ref.html" />
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<meta name="fuzzy" content="maxDifference=0-5;totalPixels=0-567">
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<style>
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canvas {
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border: 1px solid black;
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image-rendering: pixelated;
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}
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</style>
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<canvas id="canvas" width="550" height="325"></canvas>
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<script>
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const canvas = document.getElementById("canvas")
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const context = canvas.getContext("2d");
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context.beginPath();
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context.arc(59, 55, 38, 5.3849570248895775, 2.9421639085067177);
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context.stroke();
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context.fill();
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context.beginPath();
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context.ellipse(20,20,15,8,1.2273132071162383,4.1926143018618225,2.8853539230051624);
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context.stroke();
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context.fill();
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for (let i = 0; i < 2; i++) {
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for (let j = -5; j <= 5; j++) {
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context.beginPath();
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let x = 25 + (j + 5) * 50;
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let y = 150 + i * 50;
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let radius = 20;
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let startAngle = 0;
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let endAngle = (Math.PI * j) / 2;
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let counterclockwise = i == 1;
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context.arc(x, y, radius, startAngle, endAngle, counterclockwise);
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context.stroke();
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}
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}
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</script>
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