public void TriangulateFace(Autodesk.Revit.DB.Face vFace, Transform instTransform)
{
try
{
//setup utility class
LuxExporter.UnitConverter Converter = new UnitConverter();
//process face
Mesh vMesh = vFace.Triangulate();
//check if we have a quad mesh (4 edges to a face)
if (vMesh.Vertices.Count == 4)
{
//increase face counter
iNumberOfFaces++;
//found quad
Data.NumberOfVerticesinFace = 4;
//loop through all vertices and add
foreach (XYZ ii in vMesh.Vertices)
{
XYZ point = ii;
XYZ transformedPoint;
//transform geometry (only required in nested families / or elements like baluster
if (instTransform == null)
{
transformedPoint = point;
}
else
{
transformedPoint = instTransform.OfPoint(point);
}
//get the normal
XYZ NormalAtPoint;
IntersectionResult IntResult= vFace.Project(ii);
if (IntResult != null)
{
UV UVatPoint = IntResult.UVPoint;
NormalAtPoint = new XYZ(vFace.ComputeNormal(UVatPoint).X, vFace.ComputeNormal(UVatPoint).Y, vFace.ComputeNormal(UVatPoint).Z);
}
else
{
//this needs fixing!!!
NormalAtPoint = new XYZ(0, 0, 0);
}
//convert to meter
transformedPoint = Converter.ConvertPointCoordToMeter(transformedPoint);
//NormalAtPoint = Converter.ConvertPointCoordToMeter(NormalAtPoint);
//add to ply class
Data.AddVertice(transformedPoint,NormalAtPoint);
}
}
else
{
// set pointer
Data.NumberOfVerticesinFace = 3;
//export all triangles in face
for (int i = 0; i < vMesh.NumTriangles; i++)
{
//increase face counter
iNumberOfFaces++;
MeshTriangle objTriangular = vMesh.get_Triangle(i);
for (int iPointsCounter = 0; iPointsCounter < 3; iPointsCounter++)
{
XYZ point = objTriangular.get_Vertex(iPointsCounter);
XYZ transformedPoint;
//transform geometry (only required in nested families / or elements like baluster
if (instTransform == null)
{
transformedPoint = point;
}
else
{
transformedPoint = instTransform.OfPoint(point);
}
XYZ NormalAtPoint;
//get the normal
IntersectionResult IntResult = vFace.Project(point);
if (IntResult!=null)
{
UV UVatPoint = IntResult.UVPoint;
NormalAtPoint = new XYZ(vFace.ComputeNormal(UVatPoint).X,vFace.ComputeNormal(UVatPoint).Y,vFace.ComputeNormal(UVatPoint).Z);
}
else
{
//this needs fixing
NormalAtPoint = new XYZ(0, 0, 0);
}
//convert to meter
transformedPoint = Converter.ConvertPointCoordToMeter(transformedPoint);
//NormalAtPoint = Converter.ConvertPointCoordToMeter(NormalAtPoint);
//add to ply class
Data.AddVertice(transformedPoint,NormalAtPoint);
}
}
}
}
catch (Exception ex)
{
System.Windows.Forms.MessageBox.Show("Error in module PLY_by_material::TriangulateMesh "+ex.Message);
throw;
}
}
//function processing the meash
public void TriangulateTopoMesh(Autodesk.Revit.DB.Mesh vMesh)
{
//setup utility class
LuxExporter.UnitConverter Converter = new UnitConverter();
// set pointer
Data.NumberOfVerticesinFace = 3;
//export all triangles
for (int i = 0; i < vMesh.NumTriangles; i++)
{
//increase face counter
iNumberOfFaces++;
//create a triangle
MeshTriangle objTriangular = vMesh.get_Triangle(i);
//calculate normal of triangle
LuxExporter.NormalOfTriangle NormalofT = new NormalOfTriangle();
XYZ NormalAtPoint = NormalofT.calcNormal(objTriangular.get_Vertex(0), objTriangular.get_Vertex(1), objTriangular.get_Vertex(2));
for (int iPointsCounter = 0; iPointsCounter < 3; iPointsCounter++)
{
XYZ point = objTriangular.get_Vertex(iPointsCounter);
//convert to meter
point = Converter.ConvertPointCoordToMeter(point);
//add to ply class
Data.AddVertice(point, NormalAtPoint);
}
}
}