/// <summary> /// Number the vertices and write them to a .node file. /// </summary> /// <param name="mesh"></param> /// <param name="filename"></param> public static void WriteNodes(Mesh mesh, string filename) { using (StreamWriter writer = new StreamWriter(filename)) { FileWriter.WriteNodes(writer, mesh); } }
/// <summary> /// Write the segments and holes to a .poly file. /// </summary> /// <param name="mesh">Data source.</param> /// <param name="filename">File name.</param> /// <param name="writeNodes">Write nodes into this file.</param> /// <remarks>If the nodes should not be written into this file, /// make sure a .node file was written before, so that the nodes /// are numbered right.</remarks> public static void WritePoly(Mesh mesh, string filename, bool writeNodes) { Osub subseg = default(Osub); Vertex pt1, pt2; bool useBoundaryMarkers = mesh.behavior.UseBoundaryMarkers; using (StreamWriter writer = new StreamWriter(filename)) { if (writeNodes) { // Write nodes to this file. FileWriter.WriteNodes(writer, mesh); } else { // The zero indicates that the vertices are in a separate .node file. // Followed by number of dimensions, number of vertex attributes, // and number of boundary markers (zero or one). writer.WriteLine("0 {0} {1} {2}", mesh.mesh_dim, mesh.nextras, useBoundaryMarkers ? "1" : "0"); } // Number of segments, number of boundary markers (zero or one). writer.WriteLine("{0} {1}", mesh.subsegs.Count, useBoundaryMarkers ? "1" : "0"); subseg.orient = 0; int j = 0; foreach (var item in mesh.subsegs.Values) { subseg.seg = item; pt1 = subseg.Org(); pt2 = subseg.Dest(); // Segment number, indices of its two endpoints, and possibly a marker. if (useBoundaryMarkers) { writer.WriteLine("{0} {1} {2} {3}", j, pt1.id, pt2.id, subseg.seg.boundary); } else { writer.WriteLine("{0} {1} {2}", j, pt1.id, pt2.id); } j++; } // Holes j = 0; writer.WriteLine("{0}", mesh.holes.Count); foreach (var hole in mesh.holes) { writer.WriteLine("{0} {1} {2}", j++, hole.X.ToString(nfi), hole.Y.ToString(nfi)); } // Regions if (mesh.regions.Count > 0) { j = 0; writer.WriteLine("{0}", mesh.regions.Count); foreach (var region in mesh.regions) { writer.WriteLine("{0} {1} {2} {3}", j, region.point.X.ToString(nfi), region.point.Y.ToString(nfi), region.id); j++; } } } }