-// Copyright (C) 2003 OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
-// CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
-//
-// This library is free software; you can redistribute it and/or
-// modify it under the terms of the GNU Lesser General Public
-// License as published by the Free Software Foundation; either
-// version 2.1 of the License.
-//
-// This library is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-// Lesser General Public License for more details.
-//
-// You should have received a copy of the GNU Lesser General Public
-// License along with this library; if not, write to the Free Software
-// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
-//
-// See http://www.opencascade.org/SALOME/ or email : webmaster.salome@opencascade.org
-
-#include <stdio.h>
+// Copyright (C) 2007-2014 CEA/DEN, EDF R&D, OPEN CASCADE
+//
+// Copyright (C) 2003-2007 OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
+// CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
+//
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Lesser General Public
+// License as published by the Free Software Foundation; either
+// version 2.1 of the License, or (at your option) any later version.
+//
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+// Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+//
+// See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
+//
#include "DriverSTL_W_SMDS_Mesh.h"
+#ifdef WIN32
+#define NOMINMAX
+#endif
+
+#include <Basics_Utils.hxx>
+
+#include "SMDS_FaceOfNodes.hxx"
+#include "SMDS_IteratorOnIterators.hxx"
#include "SMDS_Mesh.hxx"
#include "SMDS_MeshElement.hxx"
#include "SMDS_MeshNode.hxx"
-#include <gp_XYZ.hxx>
-#include <OSD_Path.hxx>
-#include <OSD_File.hxx>
-#include <OSD_FromWhere.hxx>
-#include <OSD_Protection.hxx>
-#include <OSD_SingleProtection.hxx>
-#include <TCollection_AsciiString.hxx>
-#include <TColgp_Array1OfXYZ.hxx>
+#include "SMDS_SetIterator.hxx"
+#include "SMDS_VolumeTool.hxx"
+#include "SMESH_File.hxx"
+#include "SMESH_TypeDefs.hxx"
-#include "utilities.h"
+//#include "utilities.h"
+
+#include <limits>
-//using namespace std;
// definition des constantes
static const int LABEL_SIZE = 80;
Driver_Mesh::Status DriverSTL_W_SMDS_Mesh::Perform()
{
+ Kernel_Utils::Localizer loc;
+
Status aResult = DRS_OK;
if ( !myMesh ) {
fprintf(stderr, ">> ERROR : Mesh is null \n");
return DRS_FAIL;
}
+ findVolumeTriangles();
if ( myIsAscii )
aResult = writeAscii();
else
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];
+}
+
+//================================================================================
+/*!
+ * \brief Finds free facets of volumes for which faces are missing in the mesh
+ */
+//================================================================================
+
+void DriverSTL_W_SMDS_Mesh::findVolumeTriangles()
+{
+ SMDS_VolumeTool theVolume;
+ SMDS_VolumeIteratorPtr vIt = myMesh->volumesIterator();
+ std::vector< const SMDS_MeshNode*> nodes;
+ while ( vIt->more() )
+ {
+ theVolume.Set( vIt->next(), /*ignoreCentralNodes=*/false );
+ for ( int iF = 0; iF < theVolume.NbFaces(); ++iF )
+ if ( theVolume.IsFreeFace( iF ))
+ {
+ 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 ( nbN == 9 && !theVolume.IsPoly() ) // facet is SMDSEntity_BiQuad_Quadrangle
+ {
+ 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] ));
+ }
+ 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] ));
+ }
+ }
+ }
+ }
+}
+
+//================================================================================
+/*!
+ * \brief Return iterator on both faces in the mesh and on temporary faces
+ */
+//================================================================================
+
+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()));
+ typedef std::vector< SMDS_ElemIteratorPtr > TElemIterVector;
+ TElemIterVector iters(2);
+ iters[0] = facesIter;
+ iters[1] = tmpTriaIter;
+
+ typedef SMDS_IteratorOnIterators<const SMDS_MeshElement *, TElemIterVector> TItersIter;
+ return SMDS_ElemIteratorPtr( new TItersIter( iters ));
+}
// static methods
-static void writeInteger( const Standard_Integer& theVal,
- OSD_File& ofile )
+static void writeInteger( const Standard_Integer& theVal, SMESH_File& ofile )
{
union {
Standard_Integer i;
char c[4];
- }u;
+ } u;
u.i = theVal;
entier |= (u.c[2] & 0xFF) << 0x10;
entier |= (u.c[3] & 0xFF) << 0x18;
- ofile.Write((char *)&entier,sizeof(u.c));
+ ofile.write( entier );
}
-static void writeFloat ( const Standard_ShortReal& theVal,
- OSD_File& ofile)
+static void writeFloat( const Standard_ShortReal& theVal, SMESH_File& ofile)
{
union {
Standard_ShortReal f;
char c[4];
- }u;
+ } u;
u.f = theVal;
entier |= (u.c[2] & 0xFF) << 0x10;
entier |= (u.c[3] & 0xFF) << 0x18;
- ofile.Write((char *)&entier,sizeof(u.c));
+ ofile.write( entier );
}
-static gp_XYZ getNormale( const SMDS_MeshFace* theFace )
+static gp_XYZ getNormale( const SMDS_MeshNode* n1,
+ const SMDS_MeshNode* n2,
+ const SMDS_MeshNode* n3)
{
- gp_XYZ n;
- int aNbNode = theFace->NbNodes();
- TColgp_Array1OfXYZ anArrOfXYZ(1,4);
- gp_XYZ p1, p2, p3, p4;
- SMDS_ElemIteratorPtr aNodeItr = theFace->nodesIterator();
- int i = 1;
- for ( ; aNodeItr->more() && i <= 4; i++ )
- {
- SMDS_MeshNode* aNode = (SMDS_MeshNode*)aNodeItr->next();
- anArrOfXYZ.SetValue(i, gp_XYZ( aNode->X(), aNode->Y(), aNode->Z() ) );
- }
-
- gp_XYZ q1 = anArrOfXYZ.Value(2) - anArrOfXYZ.Value(1);
- gp_XYZ q2 = anArrOfXYZ.Value(3) - anArrOfXYZ.Value(1);
- n = q1 ^ q2;
- if ( aNbNode > 3 )
- {
- gp_XYZ q3 = anArrOfXYZ.Value(4) - anArrOfXYZ.Value(1);
- n += q2 ^ q3;
- }
+ SMESH_TNodeXYZ xyz1( n1 );
+ SMESH_TNodeXYZ xyz2( n2 );
+ SMESH_TNodeXYZ xyz3( n3 );
+ gp_XYZ q1 = xyz2 - xyz1;
+ gp_XYZ q2 = xyz3 - xyz1;
+ gp_XYZ n = q1 ^ q2;
double len = n.Modulus();
- if ( len > 0 )
+ if ( len > std::numeric_limits<double>::min() )
n /= len;
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
{
Status aResult = DRS_OK;
- TCollection_AsciiString aFileName( (char *)myFile.c_str() );
- if ( aFileName.IsEmpty() ) {
+ if ( myFile.empty() ) {
fprintf(stderr, ">> ERREOR : invalid file name \n");
return DRS_FAIL;
}
- OSD_File aFile = OSD_File(OSD_Path(aFileName));
- aFile.Build(OSD_WriteOnly,OSD_Protection());
- TCollection_AsciiString buf = TCollection_AsciiString ("solid\n");
- aFile.Write (buf,buf.Length());buf.Clear();
- char sval[16];
+ SMESH_File aFile( myFile, /*openForReading=*/false );
+ aFile.openForWriting();
- SMDS_FaceIteratorPtr itFaces = myMesh->facesIterator();
-
- for (; itFaces->more() ;) {
- SMDS_MeshFace* aFace = (SMDS_MeshFace*)itFaces->next();
+ std::string buf("solid\n");
+ aFile.writeRaw( buf.c_str(), buf.size() );
+
+ char sval[128];
+ const SMDS_MeshNode* triaNodes[2048];
+
+ SMDS_ElemIteratorPtr itFaces = getFaces();
+ while ( itFaces->more() )
+ {
+ const SMDS_MeshElement* aFace = itFaces->next();
+ int nbTria = getTriangles( aFace, triaNodes );
- if (aFace->NbNodes() == 3) {
- gp_XYZ normale = getNormale( aFace );
-
- buf += " facet normal ";
- sprintf (sval,"% 12e",normale.X());
- buf += sval;
- buf += " ";
- sprintf (sval,"% 12e",normale.Y());
- buf += sval;
- buf += " ";
- sprintf (sval,"% 12e",normale.Z());
- buf += sval;
- buf += '\n';
- aFile.Write (buf,buf.Length());buf.Clear();
- buf += " outer loop\n";
- aFile.Write (buf,buf.Length());buf.Clear();
-
- SMDS_ElemIteratorPtr aNodeIter = aFace->nodesIterator();
- for (; aNodeIter->more(); ) {
- SMDS_MeshNode* node = (SMDS_MeshNode*)aNodeIter->next();
- buf += " vertex ";
- sprintf (sval,"% 12e",node->X());
- buf += sval;
- buf += " ";
- sprintf (sval,"% 12e",node->Y());
- buf += sval;
- buf += " ";
- sprintf (sval,"% 12e",node->Z());
- buf += sval;
- buf += '\n';
- aFile.Write (buf,buf.Length());buf.Clear();
+ for ( int iT = 0, iN = 0; iT < nbTria; ++iT )
+ {
+ gp_XYZ normale = getNormale( triaNodes[iN],
+ triaNodes[iN+1],
+ triaNodes[iN+2] );
+ sprintf (sval,
+ " facet normal % 12e % 12e % 12e\n"
+ " outer loop\n" ,
+ normale.X(), normale.Y(), normale.Z());
+ aFile.writeRaw ( sval, 70 );
+
+ for ( int jN = 0; jN < 3; ++jN, ++iN )
+ {
+ SMESH_TNodeXYZ node = triaNodes[iN];
+ sprintf (sval,
+ " vertex % 12e % 12e % 12e\n",
+ node.X(), node.Y(), node.Z() );
+ aFile.writeRaw ( sval, 54 );
}
- buf += " endloop\n";
- aFile.Write (buf,buf.Length());buf.Clear();
- buf += " endfacet\n";
- aFile.Write (buf,buf.Length());buf.Clear();
+ aFile.writeRaw (" endloop\n"
+ " endfacet\n", 21 );
}
}
- buf += "endsolid\n";
- aFile.Write (buf,buf.Length());buf.Clear();
-
- aFile.Close ();
+ aFile.writeRaw ("endsolid\n" , 9 );
return aResult;
}
+//================================================================================
+/*!
+ * \brief Writes all triangles in binary format
+ * \return Driver_Mesh::Status - DRS_FAIL if no file name is provided
+ */
+//================================================================================
+
Driver_Mesh::Status DriverSTL_W_SMDS_Mesh::writeBinary() const
{
Status aResult = DRS_OK;
- TCollection_AsciiString aFileName( (char *)myFile.c_str() );
- if ( aFileName.IsEmpty() ) {
+
+ if ( myFile.empty() ) {
fprintf(stderr, ">> ERREOR : invalid filename \n");
return DRS_FAIL;
}
- OSD_File aFile = OSD_File(OSD_Path(aFileName));
- aFile.Build(OSD_WriteOnly,OSD_Protection());
-
- char sval[80];
- Standard_Integer nbTri = 0;
- SMDS_FaceIteratorPtr itFaces = myMesh->facesIterator();
+ SMESH_File aFile( myFile );
+ aFile.openForWriting();
// we first count the number of triangles
- for (;itFaces->more();) {
- SMDS_MeshFace* aFace = (SMDS_MeshFace*)itFaces->next();
- if (aFace->NbNodes() == 3)
- nbTri++;
+ int nbTri = myVolumeTrias.size();
+ {
+ SMDS_FaceIteratorPtr itFaces = myMesh->facesIterator();
+ while ( itFaces->more() ) {
+ const SMDS_MeshElement* aFace = itFaces->next();
+ nbTri += getNbTriangles( aFace );
+ }
}
+ std::string sval( LABEL_SIZE, ' ' );
+ aFile.write( sval.c_str(), LABEL_SIZE );
// write number of triangles
- //unsigned int NBT = nbTri;
- aFile.Write((Standard_Address)sval,LABEL_SIZE);
- writeInteger(nbTri,aFile);
+ writeInteger( nbTri, aFile );
+
+ // Loop writing nodes
- // loop writing nodes. take face iterator again
int dum=0;
- itFaces = myMesh->facesIterator();
-
- for (;itFaces->more();) {
- SMDS_MeshFace* aFace = (SMDS_MeshFace*)itFaces->next();
+
+ const SMDS_MeshNode* triaNodes[2048];
+
+ SMDS_ElemIteratorPtr itFaces = getFaces();
+ while ( itFaces->more() )
+ {
+ const SMDS_MeshElement* aFace = itFaces->next();
+ int nbTria = getTriangles( aFace, triaNodes );
- if (aFace->NbNodes() == 3) {
- gp_XYZ aNorm = getNormale( aFace );
- writeFloat(aNorm.X(),aFile);
- writeFloat(aNorm.Y(),aFile);
- writeFloat(aNorm.Z(),aFile);
-
- SMDS_ElemIteratorPtr aNodeIter = aFace->nodesIterator();
- for (; aNodeIter->more(); ) {
- SMDS_MeshNode* node = (SMDS_MeshNode*)aNodeIter->next();
- writeFloat(node->X(),aFile);
- writeFloat(node->Y(),aFile);
- writeFloat(node->Z(),aFile);
+ for ( int iT = 0, iN = 0; iT < nbTria; ++iT )
+ {
+ gp_XYZ normale = getNormale( triaNodes[iN],
+ triaNodes[iN+1],
+ triaNodes[iN+2] );
+ writeFloat(normale.X(),aFile);
+ writeFloat(normale.Y(),aFile);
+ writeFloat(normale.Z(),aFile);
+
+ for ( int jN = 0; jN < 3; ++jN, ++iN )
+ {
+ const SMDS_MeshNode* node = triaNodes[iN];
+ writeFloat(node->X(),aFile);
+ writeFloat(node->Y(),aFile);
+ writeFloat(node->Z(),aFile);
}
- aFile.Write (&dum,2);
- }
+ aFile.writeRaw ( &dum, 2 );
+ }
}
- aFile.Close ();
return aResult;
}
