LayoutTests/fast/canvas/canvas-ellipse-circumference-expected.html - Issue 14298022: Add support for new canvas ellipse method.

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Issue 14298022: Add support for new canvas ellipse method. (Closed) Base URL: https://chromium.googlesource.com/chromium/blink.git@master

Patch Set: Complete degenerateEllipse. Make canvas-ellipse-zero-lineto.html cover various degenerate edge case… Created 7 years, 5 months ago

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« LayoutTests/fast/canvas/canvas-ellipse-circumference.html ('K') | « LayoutTests/fast/canvas/canvas-ellipse-circumference.html ('k') | LayoutTests/fast/canvas/canvas-ellipse-connecting-line.html » ('j') | Source/core/html/canvas/CanvasPathMethods.cpp » ('J')
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	1 <!DOCTYPE html>

	2 <html>

	3 <head></head>

	4 <body>

	5 <canvas id="mycanvas" width="400" height="200"></canvas>

	6 <script src="script-tests/js-ellipse-implementation.js"></script>

	7 <script>

	8 //This tests checks that ellipse can draw correct circumferences with lineTo.

	9 var canvas = document.getElementById('mycanvas');

	10 var ctx = canvas.getContext('2d');

	11

	12 ctx.lineWidth = 7;

	13 ctx.fillStyle = 'rgb(255, 255, 255)';

	14 ctx.strokeStyle = 'rgb(0, 0, 0)';

	15 ctx.fillRect(0, 0, canvas.width, canvas.height);

	16

	17 // Check clockwise circumference.

	18 // 1. sweepAngle == 2PI

	19 ctx.save();

	20 ctx.beginPath();

	21 ctx.moveTo(0, 10);

	22 ellipseUsingArc(ctx, 60, 50, 30, 20, Math.PI / 6, -Math.PI, Math.PI, false);

	23 ctx.lineTo(0, 90);

	24 ctx.stroke();

	25 ctx.restore();

	26

	27 // 2. sweepAngle == PI

	28 ctx.translate(100, 0);

	29 ctx.save();

	30 ctx.beginPath();

	31 ctx.moveTo(0, 10);

	32 ellipseUsingArc(ctx, 60, 50, 30, 20, Math.PI / 6, -Math.PI, 0, false);

	33 ctx.lineTo(0, 90);

	34 ctx.stroke();

	35 ctx.restore();

	36

	37 // 3. sweepAngle > 2PI

	38 ctx.translate(100, 0);

	39 ctx.save();

	40 ctx.beginPath();

	41 ctx.moveTo(0, 10);

	42 ellipseUsingArc(ctx, 60, 50, 30, 20, Math.PI / 6, -Math.PI, Math.PI * 2.5, false );

	43 ctx.lineTo(0, 90);

	44 ctx.stroke();

	45 ctx.restore();

	46

	47 // 4. sweepAngle < 0

	48 ctx.translate(100, 0);

	49 ctx.save();

	50 ctx.beginPath();

	51 ctx.moveTo(0, 10);

	52 ellipseUsingArc(ctx, 60, 50, 30, 20, Math.PI / 6, Math.PI * 1.5, -Math.PI, false );

	53 ctx.lineTo(0, 90);

	54 ctx.stroke();

	55 ctx.restore();

	56

	57 // Check anticlockwise circumference.

	58 // 1. sweepAngle == 2PI

	59 ctx.translate(-300, 100);

	60 ctx.save();

	61 ctx.beginPath();

	62 ctx.moveTo(0, 10);

	63 ellipseUsingArc(ctx, 60, 50, 30, 20, Math.PI / 6, Math.PI, -Math.PI, true);

	64 ctx.lineTo(0, 90);

	65 ctx.stroke();

	66 ctx.restore();

	67

	68 // 2. sweepAngle == PI

	69 ctx.translate(100, 0);

	70 ctx.save();

	71 ctx.beginPath();

	72 ctx.moveTo(0, 10);

	73 ellipseUsingArc(ctx, 60, 50, 30, 20, Math.PI / 6, Math.PI, 0, true);

	74 ctx.lineTo(0, 90);

	75 ctx.stroke();

	76 ctx.restore();

	77

	78 // 3. sweepAngle > 2PI

	79 ctx.translate(100, 0);

	80 ctx.save();

	81 ctx.beginPath();

	82 ctx.moveTo(0, 10);

	83 ellipseUsingArc(ctx, 60, 50, 30, 20, Math.PI / 6, Math.PI, Math.PI * -1.5, true) ;

	84 ctx.lineTo(0, 90);

	85 ctx.stroke();

	86 ctx.restore();

	87

	88 // 4. sweepAngle < 0

	89 ctx.translate(100, 0);

	90 ctx.save();

	91 ctx.beginPath();

	92 ctx.moveTo(0, 10);

	93 ellipseUsingArc(ctx, 60, 50, 30, 20, Math.PI / 6, Math.PI * -1.5, Math.PI, true) ;

	94 ctx.lineTo(0, 90);

	95 ctx.stroke();

	96 ctx.restore();

	97

	98 </script>

	99 </body>

	100 </html>

	101

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