public static ComputeVoronoiGraph ( VoronoiCell>.Dictionary |
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cells | VoronoiCell>.Dictionary | |
리턴 |
/// <summary> /// Visualization of 2D Voronoi map. /// </summary> /// <param name="weight">Weight of result image.</param> /// <param name="height">Height of result image.</param> /// <param name="Datapoints">Array of data points.</param> /// <returns>Result bitmap.</returns> public static Bitmap GetVoronoyMap(int weight, int height, IEnumerable Datapoints) { Bitmap bmp = new Bitmap(weight, height); VoronoiGraph graph = Fortune.ComputeVoronoiGraph(Datapoints); Graphics g = Graphics.FromImage(bmp); foreach (object o in graph.Vertizes) { Vector3 v = (Vector3)o; g.DrawEllipse(Pens.Black, (int)v[0] - 2, (int)v[1] - 2, 4, 4); } foreach (object o in Datapoints) { Vector3 v = (Vector3)o; g.DrawEllipse(Pens.Red, (int)v[0] - 1, (int)v[1] - 1, 2, 2); } foreach (object o in graph.Edges) { VoronoiEdge edge = (VoronoiEdge)o; try { g.DrawLine(Pens.Brown, (int)edge.VVertexA[0], (int)edge.VVertexA[1], (int)edge.VVertexB[0], (int)edge.VVertexB[1]); } catch { } } return(bmp); }
/// <summary> /// Visualization of Delaunay Triangulation /// </summary> /// <param name="weight">Weight of result image.</param> /// <param name="height">Height of result image.</param> /// <param name="Datapoints">Result bitmap.</param> /// <returns></returns> public static List <Triangle> GetDelaunayTriangulation(IEnumerable Datapoints) { System.Collections.Generic.List <Triangle> list = new System.Collections.Generic.List <Triangle>(); VoronoiGraph voronoiGraph = Fortune.ComputeVoronoiGraph(Datapoints); //Graphics g = Graphics.FromImage(bmp); List <Triangle> triangles = new List <Triangle>(); for (int i = voronoiGraph.Edges.Count - 1; i >= 0; i--) { VoronoiEdge edge1 = voronoiGraph.Edges[i]; for (int j = 0; j < i; j++) { VoronoiEdge edge2 = voronoiGraph.Edges[j]; //if (edge1.LeftData.Index == edge2.LeftData.Index) //{ // triangles.Add(new Triangle(edge1.LeftData.Index, edge1.RightData.Index, edge2.RightData.Index)); //} //if (edge1.RightData.Index == edge2.RightData.Index) //{ // triangles.Add(new Triangle(edge1.LeftData.Index, edge1.RightData.Index, edge2.LeftData.Index)); //} //if (edge1.RightData.Index == edge2.LeftData.Index) //{ // triangles.Add(new Triangle(edge1.LeftData.Index, edge1.RightData.Index, edge2.RightData.Index)); //} //if (edge1.LeftData.Index == edge2.RightData.Index) //{ // triangles.Add(new Triangle(edge1.LeftData.Index, edge1.RightData.Index, edge2.LeftData.Index)); //} } //if ((edge.LeftData[0] == v[0]) & (edge.LeftData[1] == v[1])) //{ // g.DrawLine(Pens.Black, (int)edge.LeftData[0], (int)edge.LeftData[1], (int)edge.RightData[0], (int)edge.RightData[1]); //} } ////Graphics g = Graphics.FromImage(bmp); //foreach (object o in Datapoints) //{ // Vector3 v = (Vector3)o; // //g.DrawEllipse(Pens.Red, (int)v[0] - 1, (int)v[1] - 1, 2, 2); // foreach (object obj in voronoiGraph.Edges) // { // VoronoiEdge edge = (VoronoiEdge)obj; // if ((edge.LeftData[0] == v[0]) & (edge.LeftData[1] == v[1])) // { // g.DrawLine(Pens.Black, (int)edge.LeftData[0], (int)edge.LeftData[1], (int)edge.RightData[0], (int)edge.RightData[1]); // } // } //} return(triangles); }