| /* |
| * Copyright 2017 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #ifndef SkInsetConvexPolygon_DEFINED |
| #define SkInsetConvexPolygon_DEFINED |
| |
| #include "SkTDArray.h" |
| #include "SkPoint.h" |
| |
| /** |
| * Generates a polygon that is inset a given distance from the boundary of a given convex polygon. |
| * |
| * @param inputPolygonVerts Array of points representing the vertices of the original polygon. |
| * It should be convex and have no coincident points. |
| * @param inputPolygonSize Number of vertices in the original polygon. |
| * @param insetDistance How far we wish to inset the polygon. This should be a positive value. |
| * @param insetPolygon The resulting inset polygon, if any. |
| * @return true if an inset polygon exists, false otherwise. |
| */ |
| bool SkInsetConvexPolygon(const SkPoint* inputPolygonVerts, int inputPolygonSize, |
| SkScalar insetDistance, SkTDArray<SkPoint>* insetPolygon); |
| |
| #endif |