/// <summary>
/// Returns the preview-meshes of the RhinoObject.
/// TODO: Extend to handle sub-assigned materials returning a list of KV-pairs of meshes, materials.
/// </summary>
/// <param name="rhinoObject"></param>
/// <returns></returns>
public static Rhino.Geometry.Mesh[] GetMeshes(RhinoObject rhinoObject)
{
if (rhinoObject.ObjectType == ObjectType.Mesh)
{
MeshObject meshObj = rhinoObject as MeshObject;
return(new Rhino.Geometry.Mesh[] { meshObj.MeshGeometry });
}
// Need to get a Mesh from the None-mesh object. Using the FastRenderMesh here. Could be made configurable.
// First make sure the internal rhino mesh has been created
rhinoObject.CreateMeshes(MeshType.Preview, MeshingParameters.FastRenderMesh, true);
// Then get the internal rhino meshes
Rhino.Geometry.Mesh[] meshes = rhinoObject.GetMeshes(MeshType.Preview);
List <Rhino.Geometry.Mesh> validMeshes = new List <Mesh>();
foreach (Rhino.Geometry.Mesh mesh in meshes)
{
if (MeshIsValidForExport(mesh))
{
mesh.EnsurePrivateCopy();
validMeshes.Add(mesh);
}
}
return(validMeshes.Count == 0 ? new Rhino.Geometry.Mesh[] { } : validMeshes.ToArray());
}
public Rhino.Geometry.Mesh[] GetMeshes(RhinoObject rhinoObject)
{
if (rhinoObject.ObjectType == ObjectType.Mesh)
{
MeshObject meshObj = rhinoObject as MeshObject;
return(new Rhino.Geometry.Mesh[] { meshObj.MeshGeometry });
}
else if (rhinoObject.ObjectType == ObjectType.SubD)
{
SubDObject subdObject = rhinoObject as SubDObject;
Rhino.Geometry.SubD subd = subdObject.Geometry as Rhino.Geometry.SubD;
Rhino.Geometry.Mesh mesh = null;
if (options.SubDExportMode == SubDMode.ControlNet)
{
mesh = Rhino.Geometry.Mesh.CreateFromSubDControlNet(subd);
}
else
{
int level = options.SubDLevel;
mesh = Rhino.Geometry.Mesh.CreateFromSubD(subd, level);
}
return(new Rhino.Geometry.Mesh[] { mesh });
}
// Need to get a Mesh from the None-mesh object. Using the FastRenderMesh here. Could be made configurable.
// First make sure the internal rhino mesh has been created
rhinoObject.CreateMeshes(Rhino.Geometry.MeshType.Preview, Rhino.Geometry.MeshingParameters.FastRenderMesh, true);
// Then get the internal rhino meshes
Rhino.Geometry.Mesh[] meshes = rhinoObject.GetMeshes(Rhino.Geometry.MeshType.Preview);
List <Rhino.Geometry.Mesh> validMeshes = new List <Rhino.Geometry.Mesh>();
foreach (Rhino.Geometry.Mesh mesh in meshes)
{
if (MeshIsValidForExport(mesh))
{
mesh.EnsurePrivateCopy();
validMeshes.Add(mesh);
}
}
return(validMeshes.ToArray());
}
public override void RenderScene(DB.View dBView, Autodesk.Revit.DB.DisplayStyle displayStyle)
{
try
{
if (primitives == null)
{
if (rhinoObject is PointObject pointObject)
{
primitives = new Primitive[] { new ObjectPrimitive(pointObject, pointObject.PointGeometry) };
}
else if (rhinoObject is PointCloudObject pointCloudObject)
{
AddPointCloudPreviews(pointCloudObject.PointCloudGeometry);
}
else if (rhinoObject is CurveObject curveObject)
{
primitives = new Primitive[] { new ObjectPrimitive(curveObject, curveObject.CurveGeometry) };
}
else if (rhinoObject is MeshObject meshObject)
{
AddMeshPreviews(meshObject.MeshGeometry);
}
else if (rhinoObject.IsMeshable(MeshType.Render))
{
var meshingParameters = rhinoObject.GetRenderMeshParameters();
if (rhinoObject.MeshCount(MeshType.Render, meshingParameters) == 0)
{
rhinoObject.CreateMeshes(MeshType.Render, meshingParameters, false);
}
var renderMeshes = rhinoObject.GetMeshes(MeshType.Render);
if (renderMeshes?.Length > 0)
{
int vertexCount = renderMeshes.Select((x) => x.Vertices.Count).Sum();
if (vertexCount > VertexThreshold)
{
foreach (var m in renderMeshes)
{
AddMeshPreviews(m);
}
}
else
{
var previewMesh = renderMeshes.Length == 1 ? renderMeshes[0] : null;
if (previewMesh == null)
{
previewMesh = new Mesh();
previewMesh.Append(renderMeshes);
}
AddMeshPreviews(previewMesh);
}
}
}
}
if (primitives != null)
{
DB3D.DrawContext.SetWorldTransform(Autodesk.Revit.DB.Transform.Identity.ScaleBasis(1.0 / Revit.ModelUnits));
foreach (var primitive in primitives)
{
if (DB3D.DrawContext.IsInterrupted())
{
return;
}
primitive.Draw(displayStyle);
}
}
}
catch (Exception e)
{
Debug.Fail(e.Source, e.Message);
}
}