public static bool RhinoMeshToCMesh(
Mesh mesh,
ref CMesh outMesh,
bool flipYZ,
out String errorMessage)
{
outMesh = new CMesh();
outMesh.n_vertices = mesh.Vertices.Count;
outMesh.n_faces = mesh.Faces.Count;
outMesh.points = Marshal.AllocHGlobal(Marshal.SizeOf(typeof(float)) * outMesh.n_vertices * 3);
outMesh.faces = Marshal.AllocHGlobal(Marshal.SizeOf(typeof(int)) * outMesh.n_faces * 3);
float[] points = new float[outMesh.n_vertices * 3];
for (int id = 0; id < mesh.Vertices.Count; id++)
{
points[id * 3] = mesh.Vertices[id].X;
if (flipYZ)
{
points[id * 3 + 1] = mesh.Vertices[id].Z;
points[id * 3 + 2] = -mesh.Vertices[id].Y;
}
else
{
points[id * 3 + 1] = mesh.Vertices[id].Y;
points[id * 3 + 2] = mesh.Vertices[id].Z;
}
}
Marshal.Copy(points, 0, outMesh.points, outMesh.n_vertices * 3);
int[] faces = new int[outMesh.n_faces * 3];
for (int id = 0; id < mesh.Faces.Count; id++)
{
if (mesh.Faces[id].IsTriangle)
{
faces[3 * id] = mesh.Faces[id].A;
faces[3 * id + 1] = mesh.Faces[id].B;
faces[3 * id + 2] = mesh.Faces[id].C;
}
else
{
errorMessage = "Mesh has Quad Faces!";
return(false);
}
}
Marshal.Copy(faces, 0, outMesh.faces, outMesh.n_faces * 3);
errorMessage = "";
return(true);
}
internal static extern void addMeshesToContactGraph(IntPtr graphData, [In, Out] ref CMesh mesh, bool brdy);
internal static extern void setReferenceSurface(ref CMesh cmesh, IntPtr topoData);