-// Copyright (C) 2007-2014 CEA/DEN, EDF R&D, OPEN CASCADE
+// Copyright (C) 2007-2024 CEA, EDF, OPEN CASCADE
//
// Copyright (C) 2003-2007 OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
// CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
#include "SMDS_FaceOfNodes.hxx"
#include "SMDS_IteratorOnIterators.hxx"
#include "SMDS_Mesh.hxx"
-#include "SMDS_MeshElement.hxx"
-#include "SMDS_MeshNode.hxx"
+#include "SMDS_PolygonalFaceOfNodes.hxx"
#include "SMDS_SetIterator.hxx"
#include "SMDS_VolumeTool.hxx"
#include "SMESH_File.hxx"
+#include "SMESH_MeshAlgos.hxx"
#include "SMESH_TypeDefs.hxx"
-//#include "utilities.h"
-
#include <limits>
return aResult;
}
+
//================================================================================
/*!
* \brief Destructor deletes temporary faces
DriverSTL_W_SMDS_Mesh::~DriverSTL_W_SMDS_Mesh()
{
- for ( unsigned i = 0; i < myVolumeTrias.size(); ++i )
- delete myVolumeTrias[i];
+ for ( unsigned i = 0; i < myVolumeFacets.size(); ++i )
+ delete myVolumeFacets[i];
}
//================================================================================
void DriverSTL_W_SMDS_Mesh::findVolumeTriangles()
{
+ myNbVolumeTrias = 0;
+
SMDS_VolumeTool theVolume;
SMDS_VolumeIteratorPtr vIt = myMesh->volumesIterator();
std::vector< const SMDS_MeshNode*> nodes;
const SMDS_MeshNode** n = theVolume.GetFaceNodes(iF);
int nbN = theVolume.NbFaceNodes(iF);
nodes.assign( n, n+nbN );
- if ( !myMesh->FindElement( nodes, SMDSAbs_Face, /*Nomedium=*/false))
+ if ( !myMesh->FindElement( nodes, SMDSAbs_Face, /*noMedium=*/false))
{
- if ( nbN == 9 && !theVolume.IsPoly() ) // facet is SMDSEntity_BiQuad_Quadrangle
+ if (( nbN == 9 || nbN == 7 ) &&
+ ( !theVolume.IsPoly() )) // facet is bi-quaratic
{
int nbTria = nbN - 1;
for ( int iT = 0; iT < nbTria; ++iT )
- myVolumeTrias.push_back( new SMDS_FaceOfNodes( n[8], n[0+iT], n[1+iT] ));
+ myVolumeFacets.push_back( new SMDS_FaceOfNodes( n[8], n[0+iT], n[1+iT] ));
+ myNbVolumeTrias += nbTria;
}
else
{
- int nbTria = nbN - 2;
- for ( int iT = 0; iT < nbTria; ++iT )
- myVolumeTrias.push_back( new SMDS_FaceOfNodes( n[0], n[1+iT], n[2+iT] ));
+ myVolumeFacets.push_back( new SMDS_PolygonalFaceOfNodes( nodes ));
+ myNbVolumeTrias += nbN - 2;
}
}
}
SMDS_ElemIteratorPtr DriverSTL_W_SMDS_Mesh::getFaces() const
{
SMDS_ElemIteratorPtr facesIter = myMesh->elementsIterator(SMDSAbs_Face);
- SMDS_ElemIteratorPtr tmpTriaIter( new SMDS_ElementVectorIterator( myVolumeTrias.begin(),
- myVolumeTrias.end()));
+ SMDS_ElemIteratorPtr tmpTriaIter( new SMDS_ElementVectorIterator( myVolumeFacets.begin(),
+ myVolumeFacets.end()));
typedef std::vector< SMDS_ElemIteratorPtr > TElemIterVector;
TElemIterVector iters(2);
iters[0] = facesIter;
{
union {
Standard_ShortReal f;
- char c[4];
+ char c[4];
} u;
u.f = theVal;
return n;
}
-//================================================================================
-/*!
- * \brief Return nb triangles in a decomposed mesh face
- * \retval int - number of triangles
- */
-//================================================================================
-
-static int getNbTriangles( const SMDS_MeshElement* face)
-{
- // WARNING: counting triangles must be coherent with getTriangles()
- switch ( face->GetEntityType() )
- {
- case SMDSEntity_BiQuad_Triangle:
- case SMDSEntity_BiQuad_Quadrangle:
- return face->NbNodes() - 1;
- // case SMDSEntity_Triangle:
- // case SMDSEntity_Quad_Triangle:
- // case SMDSEntity_Quadrangle:
- // case SMDSEntity_Quad_Quadrangle:
- // case SMDSEntity_Polygon:
- // case SMDSEntity_Quad_Polygon:
- default:
- return face->NbNodes() - 2;
- }
- return 0;
-}
-
-//================================================================================
-/*!
- * \brief Decompose a mesh face into triangles
- * \retval int - number of triangles
- */
-//================================================================================
-
-static int getTriangles( const SMDS_MeshElement* face,
- const SMDS_MeshNode** nodes)
-{
- // WARNING: decomposing into triangles must be coherent with getNbTriangles()
- int nbTria, i = 0;
- SMDS_NodeIteratorPtr nIt = face->interlacedNodesIterator();
- nodes[ i++ ] = nIt->next();
- nodes[ i++ ] = nIt->next();
-
- const SMDSAbs_EntityType type = face->GetEntityType();
- switch ( type )
- {
- case SMDSEntity_BiQuad_Triangle:
- case SMDSEntity_BiQuad_Quadrangle:
- nbTria = ( type == SMDSEntity_BiQuad_Triangle ) ? 6 : 8;
- nodes[ i++ ] = face->GetNode( nbTria );
- while ( i < 3*(nbTria-1) )
- {
- nodes[ i++ ] = nodes[ i-2 ];
- nodes[ i++ ] = nIt->next();
- nodes[ i++ ] = nodes[ 2 ];
- }
- nodes[ i++ ] = nodes[ i-2 ];
- nodes[ i++ ] = nodes[ 0 ];
- nodes[ i++ ] = nodes[ 2 ];
- break;
- default:
- // case SMDSEntity_Triangle:
- // case SMDSEntity_Quad_Triangle:
- // case SMDSEntity_Quadrangle:
- // case SMDSEntity_Quad_Quadrangle:
- // case SMDSEntity_Polygon:
- // case SMDSEntity_Quad_Polygon:
- nbTria = face->NbNodes() - 2;
- nodes[ i++ ] = nIt->next();
- while ( i < 3*nbTria )
- {
- nodes[ i++ ] = nodes[ 0 ];
- nodes[ i++ ] = nodes[ i-2 ];
- nodes[ i++ ] = nIt->next();
- }
- break;
- }
- return nbTria;
-}
-
// private methods
Driver_Mesh::Status DriverSTL_W_SMDS_Mesh::writeAscii() const
SMESH_File aFile( myFile, /*openForReading=*/false );
aFile.openForWriting();
- std::string buf("solid\n");
+ std::string buf("solid ");
+ buf += myName + "\n";
aFile.writeRaw( buf.c_str(), buf.size() );
char sval[128];
- const SMDS_MeshNode* triaNodes[2048];
+ std::vector< const SMDS_MeshNode* > triaNodes;
+
+ SMESH_MeshAlgos::Triangulate triangulator;
SMDS_ElemIteratorPtr itFaces = getFaces();
while ( itFaces->more() )
{
const SMDS_MeshElement* aFace = itFaces->next();
- int nbTria = getTriangles( aFace, triaNodes );
-
+ int nbTria = triangulator.GetTriangles( aFace, triaNodes );
+
for ( int iT = 0, iN = 0; iT < nbTria; ++iT )
{
gp_XYZ normale = getNormale( triaNodes[iN],
" facet normal % 12e % 12e % 12e\n"
" outer loop\n" ,
normale.X(), normale.Y(), normale.Z());
- aFile.writeRaw ( sval, 70 );
+ aFile.writeRaw ( sval, 70 + strlen( sval + 70 )); // at least 70 but can be more (WIN)
for ( int jN = 0; jN < 3; ++jN, ++iN )
{
sprintf (sval,
" vertex % 12e % 12e % 12e\n",
node.X(), node.Y(), node.Z() );
- aFile.writeRaw ( sval, 54 );
+ aFile.writeRaw ( sval, 54 + strlen( sval + 54 ));
}
aFile.writeRaw (" endloop\n"
" endfacet\n", 21 );
- }
+ }
}
- aFile.writeRaw ("endsolid\n" , 9 );
+ buf = "endsolid " + myName + "\n";
+ aFile.writeRaw( buf.c_str(), buf.size() );
return aResult;
}
SMESH_File aFile( myFile );
aFile.openForWriting();
+ SMESH_MeshAlgos::Triangulate triangulator;
+
// we first count the number of triangles
- int nbTri = myVolumeTrias.size();
+ int nbTri = myNbVolumeTrias;
{
SMDS_FaceIteratorPtr itFaces = myMesh->facesIterator();
while ( itFaces->more() ) {
const SMDS_MeshElement* aFace = itFaces->next();
- nbTri += getNbTriangles( aFace );
+ nbTri += triangulator.GetNbTriangles( aFace );
}
}
std::string sval( LABEL_SIZE, ' ' );
+ if ( !myName.empty() )
+ {
+ sval = "name: " + myName;
+ sval.resize( LABEL_SIZE, ' ' );
+ }
aFile.write( sval.c_str(), LABEL_SIZE );
// write number of triangles
int dum=0;
- const SMDS_MeshNode* triaNodes[2048];
+ std::vector< const SMDS_MeshNode* > triaNodes;
SMDS_ElemIteratorPtr itFaces = getFaces();
while ( itFaces->more() )
{
const SMDS_MeshElement* aFace = itFaces->next();
- int nbTria = getTriangles( aFace, triaNodes );
+ int nbTria = triangulator.GetTriangles( aFace, triaNodes );
for ( int iT = 0, iN = 0; iT < nbTria; ++iT )
{
