More fixes for strokes #326
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Fixes a couple of non-working cases: stroke of an empty path, and a tricky co-linear case where the numerical robustness of the quadratic solve becomes poor.
richard-uk1
approved these changes
Nov 28, 2023
| @@ -502,7 +505,7 @@ impl StrokeCtx { | |||
| let c2 = p[3] - 3.0 * p[2] + 3.0 * p[1] - p[0]; | |||
| let roots = solve_quadratic(c0, c1, c2); | |||
| // discard cusps right at endpoints | |||
| const EPSILON: f64 = 1e-12; | |||
| const EPSILON: f64 = 1e-6; | |||
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I wonder if it's worth spending some time rationalizing all the accuracy parameters sometime (saying why they are the value they are, or if they are arbitrary).
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Fixes a couple of non-working cases: stroke of an empty path, and a tricky co-linear case where the numerical robustness of the quadratic solve becomes poor.