| <!DOCTYPE html> |
| <!-- DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. --> |
| <title>OffscreenCanvas test: 2d.path.isPointInStroke.scaleddashes</title> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <script src="/html/canvas/resources/canvas-tests.js"></script> |
| |
| <h1>2d.path.isPointInStroke.scaleddashes</h1> |
| <p class="desc">isPointInStroke() should return correct results on dashed paths at high scale factors</p> |
| |
| |
| <script> |
| var t = async_test("isPointInStroke() should return correct results on dashed paths at high scale factors"); |
| var t_pass = t.done.bind(t); |
| var t_fail = t.step_func(function(reason) { |
| throw reason; |
| }); |
| t.step(function() { |
| |
| var canvas = new OffscreenCanvas(100, 50); |
| var ctx = canvas.getContext('2d'); |
| |
| var scale = 20; |
| ctx.setLineDash([10, 21.4159]); // dash from t=0 to t=10 along the circle |
| ctx.scale(scale, scale); |
| ctx.ellipse(6, 10, 5, 5, 0, 2*Math.PI, false); |
| ctx.stroke(); |
| |
| // hit-test the beginning of the dash (t=0) |
| _assertSame(ctx.isPointInStroke(11*scale, 10*scale), true, "ctx.isPointInStroke(11*scale, 10*scale)", "true"); |
| // hit-test the middle of the dash (t=5) |
| _assertSame(ctx.isPointInStroke(8.70*scale, 14.21*scale), true, "ctx.isPointInStroke(8.70*scale, 14.21*scale)", "true"); |
| // hit-test the end of the dash (t=9.8) |
| _assertSame(ctx.isPointInStroke(4.10*scale, 14.63*scale), true, "ctx.isPointInStroke(4.10*scale, 14.63*scale)", "true"); |
| // hit-test past the end of the dash (t=10.2) |
| _assertSame(ctx.isPointInStroke(3.74*scale, 14.46*scale), false, "ctx.isPointInStroke(3.74*scale, 14.46*scale)", "false"); |
| t.done(); |
| |
| }); |
| </script> |