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| author |  caryclark@google.com <caryclark@google.com@2bbb7eff-a529-9590-31e7-b0007b416f81> | 2013-04-08 11:50:00 +0000 |
|---|---|---|
| committer | caryclark@google.com <caryclark@google.com@2bbb7eff-a529-9590-31e7-b0007b416f81> | 2013-04-08 11:50:00 +0000 |
| commit | 9166dcb3a0e8784bea83d76ae01aa338c049ae05 (patch) | |
| tree | a5c450613d4fa7d2153162b5ac9d4670b1b4f0bc /tests/PathOpsCubicIntersectionTestData.h | |
| parent | 07393cab57ce74a4aae89a31fae9aaa9780fc19d (diff) | |
Add intersections for path ops
This CL depends on
https://codereview.chromium.org/12827020/
"Add base types for path ops"
The intersection of a line, quadratic, or cubic
with another curve (or with itself) is found by
solving the implicit equation for the curve pair.
The curves are first reduced to find the simplest
form that will describe the original, and to detect
degenerate or special-case data like horizontal and
vertical lines.
For cubic self-intersection, and for a pair of cubics,
the intersection is found by recursively
approximating the cubic with a series of quadratics.
The implicit solutions depend on the root finding
contained in the DCubic and DQuad structs, and
the quartic root finder included here.
Review URL: https://codereview.chromium.org/12880016
git-svn-id: http://skia.googlecode.com/svn/trunk@8552 2bbb7eff-a529-9590-31e7-b0007b416f81
Diffstat (limited to 'tests/PathOpsCubicIntersectionTestData.h')
| -rw-r--r-- | tests/PathOpsCubicIntersectionTestData.h | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/tests/PathOpsCubicIntersectionTestData.h b/tests/PathOpsCubicIntersectionTestData.h new file mode 100644 index 0000000000..9e7ad7348e --- /dev/null +++ b/tests/PathOpsCubicIntersectionTestData.h @@ -0,0 +1,30 @@ +/* + * Copyright 2012 Google Inc. + * + * Use of this source code is governed by a BSD-style license that can be + * found in the LICENSE file. + */ +#include "SkPathOpsCubic.h" + +extern const SkDCubic pointDegenerates[]; +extern const SkDCubic notPointDegenerates[]; +extern const SkDCubic tests[][2]; +extern SkDCubic hexTests[][2]; + +extern void convert_testx(); + +extern const SkDCubic lines[]; +extern const SkDCubic notLines[]; +extern const SkDCubic modEpsilonLines[]; +extern const SkDCubic lessEpsilonLines[]; +extern const SkDCubic negEpsilonLines[]; + +extern const size_t pointDegenerates_count; +extern const size_t notPointDegenerates_count; +extern const size_t tests_count; +extern const size_t hexTests_count; +extern const size_t lines_count; +extern const size_t notLines_count; +extern const size_t modEpsilonLines_count; +extern const size_t lessEpsilonLines_count; +extern const size_t negEpsilonLines_count; |