public static void ShortenPath(VertexDistanceList vertexDistanceList, double s, bool closed) { if (s > 0.0 && vertexDistanceList.Count > 1) { double d; int n = (int)(vertexDistanceList.Count - 2); while (n != 0) { d = vertexDistanceList[n].dist; if (d > s) { break; } vertexDistanceList.RemoveLast(); s -= d; --n; } if (vertexDistanceList.Count < 2) { vertexDistanceList.Clear(); } else { n = (int)vertexDistanceList.Count - 1; VertexDistance prev = vertexDistanceList[n - 1]; VertexDistance last = vertexDistanceList[n]; d = (prev.dist - s) / prev.dist; double x = prev.x + (last.x - prev.x) * d; double y = prev.y + (last.y - prev.y) * d; last.x = x; last.y = y; if (!prev.IsEqual(last)) { vertexDistanceList.RemoveLast(); } vertexDistanceList.Close(closed); } } }
public static void ShortenPath(VertexDistanceList vertexDistanceList, double s, bool closed) { if (s > 0.0 && vertexDistanceList.Count > 1) { double d; int n = (int)(vertexDistanceList.Count - 2); while (n != 0) { d = vertexDistanceList[n].dist; if (d > s) break; vertexDistanceList.RemoveLast(); s -= d; --n; } if (vertexDistanceList.Count < 2) { vertexDistanceList.Clear(); } else { n = (int)vertexDistanceList.Count - 1; VertexDistance prev = vertexDistanceList[n - 1]; VertexDistance last = vertexDistanceList[n]; d = (prev.dist - s) / prev.dist; double x = prev.x + (last.x - prev.x) * d; double y = prev.y + (last.y - prev.y) * d; last.x = x; last.y = y; if (!prev.IsEqual(last)) { vertexDistanceList.RemoveLast(); } vertexDistanceList.Close(closed); } } }
// Generator interface public void RemoveAll() { vertexDistanceList.Clear(); m_closed = false; m_status = StrokeMath.Status.Init; }