public static Mesh ToRhino(DB.Mesh mesh)
{
if (mesh.NumTriangles < 1)
{
return(null);
}
var result = new Mesh();
result.Vertices.AddVertices(mesh.Vertices.Select(x => ToRhino(x)));
for (int t = 0; t < mesh.NumTriangles; ++t)
{
var triangle = mesh.get_Triangle(t);
var meshFace = new MeshFace
(
(int)triangle.get_Index(0),
(int)triangle.get_Index(1),
(int)triangle.get_Index(2)
);
result.Faces.AddFace(meshFace);
}
return(result);
}
public static Mesh ToRhino(DB.Mesh mesh)
{
if (mesh is null)
{
return(null);
}
var result = new Mesh();
result.Vertices.Capacity = mesh.Vertices.Count;
result.Vertices.AddVertices(mesh.Vertices.Convert(AsPoint3d));
var faceCount = mesh.NumTriangles;
result.Faces.Capacity = faceCount;
for (int t = 0; t < faceCount; ++t)
{
var triangle = mesh.get_Triangle(t);
result.Faces.AddFace
(
(int)triangle.get_Index(0),
(int)triangle.get_Index(1),
(int)triangle.get_Index(2)
);
}
return(result);
}
/// <summary>
/// Replaces <see cref="Raw.RawDecoder.ToRhino(DB.Mesh)"/> to unweld vertices and recreate Ngons
/// </summary>
/// <param name="mesh"></param>
/// <returns></returns>
internal static Mesh ToRhino(DB.Mesh mesh)
{
var result = Raw.RawDecoder.ToRhino(mesh);
result.Ngons.AddPlanarNgons(Revit.VertexTolerance, 4, 2, true);
return(result);
}
// must return an array to make mesh double sided
public static Mesh3D[] RevitMeshToHelixMesh(Autodesk.Revit.DB.Mesh rmesh)
{
List <int> indices_front = new List <int>();
List <int> indices_back = new List <int>();
List <Point3D> vertices = new List <Point3D>();
for (int i = 0; i < rmesh.NumTriangles; ++i)
{
MeshTriangle tri = rmesh.get_Triangle(i);
for (int k = 0; k < 3; ++k)
{
Point3D new_point = RevitPointToWindowsPoint(tri.get_Vertex(k));
bool new_point_exists = false;
for (int l = 0; l < vertices.Count; ++l)
{
Point3D p = vertices[l];
if ((p.X == new_point.X) && (p.Y == new_point.Y) && (p.Z == new_point.Z))
{
indices_front.Add(l);
new_point_exists = true;
break;
}
}
if (new_point_exists)
{
continue;
}
indices_front.Add(vertices.Count);
vertices.Add(new_point);
}
int a = indices_front[indices_front.Count - 3];
int b = indices_front[indices_front.Count - 2];
int c = indices_front[indices_front.Count - 1];
indices_back.Add(c);
indices_back.Add(b);
indices_back.Add(a);
}
List <Mesh3D> meshes = new List <Mesh3D>();
meshes.Add(new Mesh3D(vertices, indices_front));
meshes.Add(new Mesh3D(vertices, indices_back));
return(meshes.ToArray());
}
/// <summary>
/// Draws a mesh in Dynamo representing an analysis surface. Useful when trying to identify a surface to modify.
/// </summary>
/// <param name="SurfaceId">The ElementId of the surface to draw. Get this from AnalysisZones > CreateFrom* > SurfaceIds output list</param>
/// <returns></returns>
public static Autodesk.DesignScript.Geometry.Mesh DrawAnalysisSurface(ElementId SurfaceId)
{
//local varaibles
Document RvtDoc = DocumentManager.Instance.CurrentUIApplication.ActiveUIDocument.Document;
MassSurfaceData surf = null;
Autodesk.Revit.DB.ElementId myEnergyModelId = null;
//try to get the MassSurfaceData object from the document
try
{
surf = (MassSurfaceData)RvtDoc.GetElement(new Autodesk.Revit.DB.ElementId(SurfaceId.InternalId));
if (surf == null)
{
throw new Exception();
}
}
catch (Exception)
{
throw new Exception("Couldn't find a MassSurfaceData object with Id #: " + SurfaceId.ToString());
}
//try to get the element id of the MassEnergyAnalyticalModel - we need this to pull faces from
try
{
myEnergyModelId = surf.ReferenceElementId;
if (myEnergyModelId == null)
{
throw new Exception();
}
}
catch (Exception)
{
throw new Exception("Couldn't find a MassEnergyAnalyticalModel object belonging to the Mass instance with Id #: " + surf.ReferenceElementId.ToString());
}
//get the smallest face
Autodesk.Revit.DB.Face smallFace = GetSmallestFace(RvtDoc, surf, myEnergyModelId);
Autodesk.Revit.DB.Mesh prettyMesh = smallFace.Triangulate();
return(Revit.GeometryConversion.RevitToProtoMesh.ToProtoType(prettyMesh));
}
static Rhino.Geometry.Mesh ToRhino(this Autodesk.Revit.DB.Mesh mesh)
{
var result = new Rhino.Geometry.Mesh();
result.Vertices.AddVertices(mesh.Vertices.ToRhino());
for (int t = 0; t < mesh.NumTriangles; ++t)
{
var triangle = mesh.get_Triangle(t);
var meshFace = new MeshFace
(
(int)triangle.get_Index(0),
(int)triangle.get_Index(1),
(int)triangle.get_Index(2)
);
result.Faces.AddFace(meshFace);
}
return(result);
}
private static Autodesk.DesignScript.Geometry.Mesh InternalConvert(Autodesk.Revit.DB.Mesh geom)
{
return(geom.ToProtoType());
}
public static Mesh ToMesh(this DB.Mesh value) => MeshDecoder.FromRawMesh(MeshDecoder.ToRhino(value), UnitConverter.ToRhinoUnits);
internal static Mesh ToRhino(DB.Mesh mesh)
{
return(Raw.RawDecoder.ToRhino(mesh));
}
public static Mesh ToMesh(this DB.Mesh value)
{
var rhino = MeshDecoder.ToRhino(value); UnitConverter.Scale(rhino, UnitConverter.ToRhinoUnits); return(rhino);
}
public static Mesh ToRhino(this DB.Mesh mesh) => RawDecoder.ToRhino(mesh);
private static Autodesk.DesignScript.Geometry.Mesh SolidToMesh(Autodesk.Revit.DB.Solid solid)
{
Autodesk.DesignScript.Geometry.Mesh mesh = null;
List <Autodesk.DesignScript.Geometry.Mesh> unjoinedMeshes = new List <Autodesk.DesignScript.Geometry.Mesh>();
foreach (Autodesk.Revit.DB.Face f in solid.Faces)
{
Autodesk.Revit.DB.Mesh rMesh = f.Triangulate();
Autodesk.DesignScript.Geometry.Mesh dMesh = RevitToProtoMesh.ToProtoType(rMesh, true);
unjoinedMeshes.Add(dMesh);
}
// Join meshes
if (unjoinedMeshes.Count == 0)
{
mesh = unjoinedMeshes[0];
}
else
{
// Join all of the meshes?
List <Autodesk.DesignScript.Geometry.Point> vertices = new List <Autodesk.DesignScript.Geometry.Point>();
List <Autodesk.DesignScript.Geometry.IndexGroup> indexGroups = new List <Autodesk.DesignScript.Geometry.IndexGroup>();
foreach (Autodesk.DesignScript.Geometry.Mesh m in unjoinedMeshes)
{
if (m == null)
{
continue;
}
int baseCount = vertices.Count;
foreach (Autodesk.DesignScript.Geometry.Point pt in m.VertexPositions)
{
vertices.Add(pt);
}
foreach (Autodesk.DesignScript.Geometry.IndexGroup ig in m.FaceIndices)
{
if (ig.Count == 3)
{
Autodesk.DesignScript.Geometry.IndexGroup iGroup = Autodesk.DesignScript.Geometry.IndexGroup.ByIndices((uint)(ig.A + baseCount), (uint)(ig.B + baseCount), (uint)(ig.C + baseCount));
indexGroups.Add(iGroup);
}
else
{
Autodesk.DesignScript.Geometry.IndexGroup iGroup = Autodesk.DesignScript.Geometry.IndexGroup.ByIndices((uint)(ig.A + baseCount), (uint)(ig.B + baseCount), (uint)(ig.C + baseCount), (uint)(ig.D + baseCount));
indexGroups.Add(iGroup);
}
}
}
try
{
Autodesk.DesignScript.Geometry.Mesh joinedMesh = Autodesk.DesignScript.Geometry.Mesh.ByPointsFaceIndices(vertices, indexGroups);
if (joinedMesh != null)
{
mesh = joinedMesh;
simpleMeshes.Add(joinedMesh);
}
}
catch
{
// For now just add them all as is
}
}
return(mesh);
}
