| |
| /* |
| * Copyright 2009 The Android Open Source Project |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| |
| #ifndef SkConcaveToTriangles_DEFINED |
| #define SkConcaveToTriangles_DEFINED |
| |
| #include "SkPoint.h" |
| #include "SkTDArray.h" |
| |
| |
| // Triangulate a polygon. |
| // The polygon can be convex or concave, and can have holes or multiple contours |
| // of arbitrary recursion. |
| // The holes must have opposite orientation of the outer contours, whereas |
| // islands within the holes must have the same orientation as the outer contour. |
| // Contours should be joined by zero-thickness double-edges, to mimic a single |
| // polygon. The polygon should not be self-intersecting. |
| // Currently, the outer contour must be right-handed, i.e. it should be oriented |
| // in the direction that rotates the X-axis to the Y-axis. |
| bool SkConcaveToTriangles(size_t count, |
| const SkPoint pts[], |
| SkTDArray<SkPoint> *triangles); |
| |
| |
| #endif // SkConcaveToTriangles_DEFINED |
