/// <summary>
/// Rhino calls WriteFile() to write document geometry to an external file.
/// </summary>
public override int WriteFile(string filename, int index, ref MRhinoDoc doc, ref IRhinoFileWriteOptions options)
{
int rc = 0; // false
// Are we saving or exporting?
bool bExport = options.Mode(IRhinoFileWriteOptions.ModeFlag.SelectedMode);
// Are we in interactive or scripted mode?
bool bScript = options.Mode(IRhinoFileWriteOptions.ModeFlag.BatchMode);
List <IRhinoObject> objects = new List <IRhinoObject>();
// Get objects to save/export
MRhinoObjectIterator it = new MRhinoObjectIterator(doc, IRhinoObjectIterator.object_state.undeleted_objects);
if (bExport)
{
it.EnableSelectedFilter();
it.EnableVisibleFilter();
}
// Do the iteration...
MRhinoObject obj = null;
for (obj = it.First(); null != obj; obj = it.Next())
{
objects.Add(obj);
}
ArrayMRhinoObjectMesh meshes = new ArrayMRhinoObjectMesh(objects.Count);
OnMeshParameters mesh_parameters = _mesh_parameters;
int mesh_ui_style = (bScript) ? 2 : _mesh_ui_style;
// Get the meshes to save/export
IRhinoCommand.result res = RhUtil.RhinoMeshObjects(objects.ToArray(), ref mesh_parameters, ref mesh_ui_style, ref meshes);
if (res == IRhinoCommand.result.success)
{
if (mesh_ui_style >= 0 && mesh_ui_style <= 1)
{
_mesh_ui_style = mesh_ui_style;
}
_mesh_parameters = mesh_parameters;
}
else
{
if (bExport)
{
RhUtil.RhinoApp().Print("No meshes to export.\n");
}
else
{
RhUtil.RhinoApp().Print("No meshes to save.\n");
}
return(rc);
}
try
{
// Open the file
System.IO.StreamWriter file = new System.IO.StreamWriter(filename);
// Write mesh count
file.WriteLine(string.Format("meshcount={0}\n", meshes.Count()));
// Write each mesh
for (int i = 0; i < meshes.Count(); i++)
{
MRhinoObjectMesh obj_mesh = meshes[i];
OnMesh mesh = obj_mesh.GetMesh();
if (null != mesh)
{
// Write mesh number
file.WriteLine(string.Format("mesh={0}\n", i));
// Write mesh vertex count
file.WriteLine(string.Format("vertexcount={0}\n", mesh.m_V.Count()));
// Write mesh face count
file.WriteLine(string.Format("facecount={0}\n", mesh.m_F.Count()));
// Write mesh vertices
for (int vi = 0; vi < mesh.m_V.Count(); vi++)
{
On3fPoint p = mesh.m_V[vi];
file.WriteLine(string.Format("vertex=({0},{1},{2})\n", p.x, p.y, p.z));
}
// Write mesh faces
for (int fi = 0; fi < mesh.m_F.Count(); fi++)
{
OnMeshFace f = mesh.m_F[fi];
file.WriteLine(string.Format("face=({0},{1},{2},{3})\n", f.get_vi(0), f.get_vi(1), f.get_vi(2), f.get_vi(3)));
}
}
}
file.Close();
rc = 1; // true
}
catch (Exception e)
{
RhUtil.RhinoApp().Print(string.Format("{0}\n", e.Message));
}
return(rc);
}
///<summary> This gets called when when the user runs this command.</summary>
public override IRhinoCommand.result RunCommand(IRhinoCommandContext context)
{
MRhinoGetObject go = new MRhinoGetObject();
go.SetCommandPrompt("Select surface, polysurface, or mesh to export");
go.SetGeometryFilter(IRhinoGetObject.GEOMETRY_TYPE_FILTER.surface_object | IRhinoGetObject.GEOMETRY_TYPE_FILTER.polysrf_object | IRhinoGetObject.GEOMETRY_TYPE_FILTER.mesh_object);
go.GetObjects(1, 1);
if (go.CommandResult() != IRhinoCommand.result.success)
{
return(go.CommandResult());
}
MRhinoObjRef obj_ref = go.Object(0);
IRhinoObject obj = obj_ref.Object();
if (null == obj)
{
return(IRhinoCommand.result.failure);
}
List <IRhinoObject> obj_list = new List <IRhinoObject>();
obj_list.Add(obj);
ArrayMRhinoObjectMesh mesh_list = new ArrayMRhinoObjectMesh(obj_list.Count);
OnMeshParameters mesh_parameters = _mesh_parameters;
int mesh_ui_style = !context.IsInteractive() ? 2 : _mesh_ui_style;
IRhinoCommand.result res = RhUtil.RhinoMeshObjects(obj_list.ToArray(), ref mesh_parameters, ref mesh_ui_style, ref mesh_list);
if (res == IRhinoCommand.result.success)
{
if (mesh_ui_style >= 0 && mesh_ui_style <= 1)
{
_mesh_ui_style = mesh_ui_style;
}
_mesh_parameters = mesh_parameters;
}
else
{
RhUtil.RhinoApp().Print("No mesh to export.\n");
return(res);
}
string filename = string.Empty;
if (context.IsInteractive())
{
SaveFileDialog dialog = new SaveFileDialog();
dialog.Title = "Export";
dialog.Filter = "Geomview files|*.off";
dialog.InitialDirectory = DirectoryManager.DefaultDirectory(DirectoryManager.FileTypes.ftExport);
if (dialog.ShowDialog() != DialogResult.OK)
{
return(IRhinoCommand.result.cancel);
}
filename = dialog.FileName;
}
else
{
MRhinoGetString gs = new MRhinoGetString();
gs.SetCommandPrompt("Export file name");
gs.GetString();
if (gs.CommandResult() != IRhinoCommand.result.success)
{
return(gs.CommandResult());
}
filename = gs.String().Trim();
}
try
{
OnMesh mesh = mesh_list.First().GetMesh();
int vertex_count = mesh.VertexCount();
int face_count = mesh.FaceCount();
int edge_count = mesh.Topology().m_tope.Count();
System.IO.StreamWriter file = new System.IO.StreamWriter(filename);
// Write out the first line of the file header
file.WriteLine("OFF");
// Write the header information
file.WriteLine(string.Format("{0} {1} {2}", vertex_count, face_count, edge_count));
file.WriteLine();
// Write out all the vertices in order
for (int i = 0; i < vertex_count; i++)
{
On3fPoint p = mesh.m_V[i];
file.WriteLine(string.Format("{0} {1} {2}", p.x.ToString("F"), p.y.ToString("F"), p.z.ToString("F")));
}
file.WriteLine();
// Write out all the faces
for (int i = 0; i < face_count; i++)
{
OnMeshFace f = mesh.m_F[i];
if (f.IsQuad())
{
file.WriteLine(string.Format("4 {0} {1} {2} {3}", f.get_vi(0), f.get_vi(1), f.get_vi(2), f.get_vi(3)));
}
else
{
file.WriteLine(string.Format("3 {0} {1} {2}", f.get_vi(0), f.get_vi(1), f.get_vi(2)));
}
}
file.Close();
}
catch (Exception e)
{
RhUtil.RhinoApp().Print(string.Format("{0}\n", e.Message));
}
return(IRhinoCommand.result.success);
}