//=============================================================================
// File : GHS3DPlugin_GHS3D.cxx
// Created :
-// Author : Edward AGAPOV
+// Author : Edward AGAPOV, modified by Lioka RAZAFINDRAZAKA (CEA) 09/02/2007
// Project : SALOME
// Copyright : CEA 2003
// $Header$
#include "GHS3DPlugin_GHS3D.hxx"
#include "SMESH_Gen.hxx"
#include "SMESH_Mesh.hxx"
+#include "SMESH_Comment.hxx"
+#include "SMESH_MesherHelper.hxx"
#include "SMDS_MeshElement.hxx"
#include "SMDS_MeshNode.hxx"
+#include <TopExp.hxx>
#include <TopExp_Explorer.hxx>
#include <OSD_File.hxx>
#include <sys/sysinfo.h>
#endif
+//#include <Standard_Stream.hxx>
+
+#include <BRepGProp.hxx>
+#include <BRepBndLib.hxx>
+#include <BRepClass_FaceClassifier.hxx>
+#include <BRepClass3d_SolidClassifier.hxx>
+#include <TopAbs.hxx>
+#include <Bnd_Box.hxx>
+#include <GProp_GProps.hxx>
+#include <Precision.hxx>
+
+#define castToNode(n) static_cast<const SMDS_MeshNode *>( n );
#ifdef _DEBUG_
#define DUMP(txt) \
#define DUMP(txt)
#endif
+extern "C"
+{
+#ifndef WNT
+#include <unistd.h>
+#include <sys/mman.h>
+#endif
+#include <sys/stat.h>
+#include <fcntl.h>
+}
+
//=============================================================================
/*!
*
MESSAGE("GHS3DPlugin_GHS3D::GHS3DPlugin_GHS3D");
_name = "GHS3D_3D";
_shapeType = (1 << TopAbs_SHELL) | (1 << TopAbs_SOLID);// 1 bit /shape type
+ _onlyUnaryInput = false; // Compute() will be called on a compound of solids
+ _iShape=0;
+ _nbShape=0;
}
//=============================================================================
*/
//=============================================================================
-bool GHS3DPlugin_GHS3D::CheckHypothesis
- (SMESH_Mesh& aMesh,
- const TopoDS_Shape& aShape,
- SMESH_Hypothesis::Hypothesis_Status& aStatus)
+bool GHS3DPlugin_GHS3D::CheckHypothesis ( SMESH_Mesh& aMesh,
+ const TopoDS_Shape& aShape,
+ SMESH_Hypothesis::Hypothesis_Status& aStatus )
{
// MESSAGE("GHS3DPlugin_GHS3D::CheckHypothesis");
aStatus = SMESH_Hypothesis::HYP_OK;
return true;
}
+//=======================================================================
+//function : findShape
+//purpose :
+//=======================================================================
+
+static TopoDS_Shape findShape(const SMDS_MeshNode *aNode[],
+ TopoDS_Shape aShape,
+ const TopoDS_Shape shape[],
+ double** box,
+ const int nShape) {
+ double *pntCoor;
+ int iShape, nbNode = 4;
+
+ pntCoor = new double[3];
+ for ( int i=0; i<3; i++ ) {
+ pntCoor[i] = 0;
+ for ( int j=0; j<nbNode; j++ ) {
+ if ( i == 0) pntCoor[i] += aNode[j]->X();
+ if ( i == 1) pntCoor[i] += aNode[j]->Y();
+ if ( i == 2) pntCoor[i] += aNode[j]->Z();
+ }
+ pntCoor[i] /= nbNode;
+ }
+
+ gp_Pnt aPnt(pntCoor[0], pntCoor[1], pntCoor[2]);
+ BRepClass3d_SolidClassifier SC (aShape, aPnt, Precision::Confusion());
+ if ( not(SC.State() == TopAbs_IN) ) {
+ for (iShape = 0; iShape < nShape; iShape++) {
+ aShape = shape[iShape];
+ if ( not( pntCoor[0] < box[iShape][0] || box[iShape][1] < pntCoor[0] ||
+ pntCoor[1] < box[iShape][2] || box[iShape][3] < pntCoor[1] ||
+ pntCoor[2] < box[iShape][4] || box[iShape][5] < pntCoor[2]) ) {
+ BRepClass3d_SolidClassifier SC (aShape, aPnt, Precision::Confusion());
+ if (SC.State() == TopAbs_IN)
+ break;
+ }
+ }
+ }
+ return aShape;
+}
+
+//=======================================================================
+//function : readMapIntLine
+//purpose :
+//=======================================================================
+
+static char* readMapIntLine(char* ptr, int tab[]) {
+ long int intVal;
+ cout << endl;
+
+ for ( int i=0; i<17; i++ ) {
+ intVal = strtol(ptr, &ptr, 10);
+ if ( i < 3 )
+ tab[i] = intVal;
+ }
+ return ptr;
+}
+
+//=======================================================================
+//function : readLine
+//purpose :
+//=======================================================================
+
+#define GHS3DPlugin_BUFLENGTH 256
+#define GHS3DPlugin_ReadLine(aPtr,aBuf,aFile,aLineNb) \
+{ aPtr = fgets( aBuf, GHS3DPlugin_BUFLENGTH - 2, aFile ); aLineNb++; DUMP(endl); }
+
+//=======================================================================
+//function : countShape
+//purpose :
+//=======================================================================
+
+template < class Mesh, class Shape >
+static int countShape( Mesh* mesh, Shape shape ) {
+ TopExp_Explorer expShape ( mesh->ShapeToMesh(), shape );
+ int nbShape = 0;
+ for ( ; expShape.More(); expShape.Next() ) {
+ nbShape++;
+ }
+ return nbShape;
+}
+
//=======================================================================
//function : writeFaces
//purpose :
static bool writeFaces (ofstream & theFile,
SMESHDS_Mesh * theMesh,
- const TopoDS_Shape& theShape,
const map <int,int> & theSmdsToGhs3dIdMap)
{
// record structure:
//
// NB_ELEMS DUMMY_INT
// Loop from 1 to NB_ELEMS
- // NB_NODES NODE_NB_1 NODE_NB_2 ... (NB_NODES + 1) times: DUMMY_INT
+ // NB_NODES NODE_NB_1 NODE_NB_2 ... (NB_NODES + 1) times: DUMMY_INT
- // get all faces bound to theShape
- int nbFaces = 0;
- list< const SMDS_MeshElement* > faces;
- TopExp_Explorer fExp( theShape, TopAbs_FACE );
- for ( ; fExp.More(); fExp.Next() ) {
- SMESHDS_SubMesh* sm = theMesh->MeshElements( fExp.Current() );
- if ( sm ) {
- SMDS_ElemIteratorPtr eIt = sm->GetElements();
- while ( eIt->more() ) {
- faces.push_back( eIt->next() );
- nbFaces++;
+ int nbShape = countShape( theMesh, TopAbs_FACE );
+
+ int *tabID; tabID = new int[nbShape];
+ TopoDS_Shape *tabShape; tabShape = new TopoDS_Shape[nbShape];
+ TopoDS_Shape aShape;
+ SMESHDS_SubMesh* theSubMesh;
+ const SMDS_MeshElement* aFace;
+ const char* space = " ";
+ const int dummyint = 0;
+ map<int,int>::const_iterator itOnMap;
+ SMDS_ElemIteratorPtr itOnSubMesh, itOnSubFace;
+ int shapeID, nbNodes, aSmdsID;
+ bool idFound;
+
+ cout << " " << theMesh->NbFaces() << " shapes of 2D dimension" << endl;
+ cout << endl;
+
+ theFile << space << theMesh->NbFaces() << space << dummyint << endl;
+
+ TopExp_Explorer expface( theMesh->ShapeToMesh(), TopAbs_FACE );
+ for ( int i = 0; expface.More(); expface.Next(), i++ ) {
+ tabID[i] = 0;
+ aShape = expface.Current();
+ shapeID = theMesh->ShapeToIndex( aShape );
+ idFound = false;
+ for ( int j=0; j<=i; j++) {
+ if ( shapeID == tabID[j] ) {
+ idFound = true;
+ break;
}
}
+ if ( not idFound ) {
+ tabID[i] = shapeID;
+ tabShape[i] = aShape;
+ }
}
+ for ( int i =0; i < nbShape; i++ ) {
+ if ( not (tabID[i] == 0) ) {
+ aShape = tabShape[i];
+ shapeID = tabID[i];
+ theSubMesh = theMesh->MeshElements( aShape );
+ itOnSubMesh = theSubMesh->GetElements();
+ while ( itOnSubMesh->more() ) {
+ aFace = itOnSubMesh->next();
+ nbNodes = aFace->NbNodes();
+
+ theFile << space << nbNodes;
+
+ itOnSubFace = aFace->nodesIterator();
+ while ( itOnSubFace->more() ) {
+ // find GHS3D ID
+ aSmdsID = itOnSubFace->next()->GetID();
+ itOnMap = theSmdsToGhs3dIdMap.find( aSmdsID );
+ ASSERT( itOnMap != theSmdsToGhs3dIdMap.end() );
+
+ theFile << space << (*itOnMap).second;
+ }
- if ( nbFaces == 0 )
- return false;
+ // (NB_NODES + 1) times: DUMMY_INT
+ for ( int j=0; j<=nbNodes; j++)
+ theFile << space << dummyint;
+
+ theFile << endl;
+ }
+ }
+ }
+
+ delete [] tabID;
+ delete [] tabShape;
+
+ return true;
+}
+
+//=======================================================================
+//function : writeFaces
+//purpose : Write Faces in case if generate 3D mesh w/o geometry
+//=======================================================================
+
+static bool writeFaces (ofstream & theFile,
+ SMESHDS_Mesh * theMesh,
+ vector <const SMDS_MeshNode*> & theNodeByGhs3dId)
+{
+ // record structure:
+ //
+ // NB_ELEMS DUMMY_INT
+ // Loop from 1 to NB_ELEMS
+ // NB_NODES NODE_NB_1 NODE_NB_2 ... (NB_NODES + 1) times: DUMMY_INT
+
+
+ int nbFaces = 0;
+ list< const SMDS_MeshElement* > faces;
+ list< const SMDS_MeshElement* >::iterator f;
+ map< const SMDS_MeshNode*,int >::iterator it;
+ SMDS_ElemIteratorPtr nodeIt;
+ const SMDS_MeshElement* elem;
+ int nbNodes;
const char* space = " ";
const int dummyint = 0;
+ //get all faces from mesh
+ SMDS_FaceIteratorPtr eIt = theMesh->facesIterator();
+ while ( eIt->more() ) {
+ const SMDS_MeshElement* elem = eIt->next();
+ if ( !elem )
+ return false;
+ faces.push_back( elem );
+ nbFaces++;
+ }
+
+ if ( nbFaces == 0 )
+ return false;
+
+ cout << "The initial 2D mesh contains " << nbFaces << " faces and ";
+
// NB_ELEMS DUMMY_INT
theFile << space << nbFaces << space << dummyint << endl;
// Loop from 1 to NB_ELEMS
- list< const SMDS_MeshElement* >::iterator f = faces.begin();
+
+ map<const SMDS_MeshNode*,int> aNodeToGhs3dIdMap;
+ f = faces.begin();
for ( ; f != faces.end(); ++f )
{
- // NB_NODES
- const SMDS_MeshElement* elem = *f;
- const int nbNodes = elem->NbNodes();
+ // NB_NODES PER FACE
+ elem = *f;
+ nbNodes = elem->NbNodes();
theFile << space << nbNodes;
// NODE_NB_1 NODE_NB_2 ...
- SMDS_ElemIteratorPtr nodeIt = elem->nodesIterator();
+ nodeIt = elem->nodesIterator();
while ( nodeIt->more() )
{
// find GHS3D ID
- int aSmdsID = nodeIt->next()->GetID();
- map<int,int>::const_iterator it = theSmdsToGhs3dIdMap.find( aSmdsID );
- ASSERT( it != theSmdsToGhs3dIdMap.end() );
- theFile << space << (*it).second;
+ const SMDS_MeshNode* node = castToNode( nodeIt->next() );
+ int newId = aNodeToGhs3dIdMap.size() + 1; // ghs3d ids count from 1
+ it = aNodeToGhs3dIdMap.insert( make_pair( node, newId )).first;
+ theFile << space << it->second;
}
// (NB_NODES + 1) times: DUMMY_INT
theFile << endl;
}
+ // put nodes to theNodeByGhs3dId vector
+ theNodeByGhs3dId.resize( aNodeToGhs3dIdMap.size() );
+ map<const SMDS_MeshNode*,int>::const_iterator n2id = aNodeToGhs3dIdMap.begin();
+ for ( ; n2id != aNodeToGhs3dIdMap.end(); ++ n2id)
+ {
+ theNodeByGhs3dId[ n2id->second - 1 ] = n2id->first; // ghs3d ids count from 1
+ }
+
return true;
}
const char* space = " ";
const int dummyint = 0;
+ int aGhs3dID = 1;
+ SMDS_NodeIteratorPtr it = theMesh->nodesIterator();
+ const SMDS_MeshNode* node;
+
// NB_NODES
theFile << space << nbNodes << endl;
+ cout << endl;
+ cout << "The initial 2D mesh contains :" << endl;
+ cout << " " << nbNodes << " vertices" << endl;
// Loop from 1 to NB_NODES
- int aGhs3dID = 1;
- SMDS_NodeIteratorPtr it = theMesh->nodesIterator();
+
while ( it->more() )
{
- const SMDS_MeshNode* node = it->next();
+ node = it->next();
theSmdsToGhs3dIdMap.insert( map <int,int>::value_type( node->GetID(), aGhs3dID ));
theGhs3dIdToNodeMap.insert (map <int,const SMDS_MeshNode*>::value_type( aGhs3dID, node ));
aGhs3dID++;
}
//=======================================================================
-//function : getInt
+//function : writePoints
//purpose :
//=======================================================================
-static bool getInt( int & theValue, char * & theLine )
+static bool writePoints (ofstream & theFile,
+ SMESHDS_Mesh * theMesh,
+ const vector <const SMDS_MeshNode*> & theNodeByGhs3dId)
{
- char *ptr;
- theValue = strtol( theLine, &ptr, 10 );
- if ( ptr == theLine ||
- // there must not be neither '.' nor ',' nor 'E' ...
- (*ptr != ' ' && *ptr != '\n' && *ptr != '\0'))
+ // record structure:
+ //
+ // NB_NODES
+ // Loop from 1 to NB_NODES
+ // X Y Z DUMMY_INT
+
+ //int nbNodes = theMesh->NbNodes();
+ int nbNodes = theNodeByGhs3dId.size();
+ if ( nbNodes == 0 )
return false;
- DUMP( " " << theValue );
- theLine = ptr;
- return true;
-}
+ const char* space = " ";
+ const int dummyint = 0;
-//=======================================================================
-//function : getDouble
-//purpose :
-//=======================================================================
+ const SMDS_MeshNode* node;
-static bool getDouble( double & theValue, char * & theLine )
-{
- char *ptr;
- theValue = strtod( theLine, &ptr );
- if ( ptr == theLine )
- return false;
+ // NB_NODES
+ theFile << space << nbNodes << endl;
+ cout << nbNodes << " nodes" << endl;
+
+ // Loop from 1 to NB_NODES
+
+ vector<const SMDS_MeshNode*>::const_iterator nodeIt = theNodeByGhs3dId.begin();
+ vector<const SMDS_MeshNode*>::const_iterator after = theNodeByGhs3dId.end();
+ for ( ; nodeIt != after; ++nodeIt )
+ {
+ node = *nodeIt;
+
+ // X Y Z DUMMY_INT
+ theFile
+ << space << node->X()
+ << space << node->Y()
+ << space << node->Z()
+ << space << dummyint;
+
+ theFile << endl;
+ }
- DUMP( " " << theValue );
- theLine = ptr;
return true;
}
-
+
//=======================================================================
-//function : readLine
+//function : readResultFile
//purpose :
//=======================================================================
-#define GHS3DPlugin_BUFLENGTH 256
-#define GHS3DPlugin_ReadLine(aPtr,aBuf,aFile,aLineNb) \
-{ aPtr = fgets( aBuf, GHS3DPlugin_BUFLENGTH - 2, aFile ); aLineNb++; DUMP(endl); }
+static bool readResultFile(const int fileOpen,
+ SMESHDS_Mesh* theMeshDS,
+ TopoDS_Shape tabShape[],
+ double** tabBox,
+ const int nbShape,
+ map <int,const SMDS_MeshNode*>& theGhs3dIdToNodeMap) {
+
+ struct stat status;
+ size_t length;
+
+ char *ptr, *mapPtr;
+ char *tetraPtr;
+ char *shapePtr;
+
+ int fileStat;
+ int nbElems, nbNodes, nbInputNodes;
+ int nodeId, triangleId;
+ int nbTriangle;
+ int ID, shapeID, ghs3dShapeID;
+ int IdShapeRef = 1;
+ int compoundID = theMeshDS->ShapeToIndex( theMeshDS->ShapeToMesh() );
+
+ int *tab, *tabID, *nodeID, *nodeAssigne;
+ double *coord;
+ const SMDS_MeshNode **node;
+
+ tab = new int[3];
+ tabID = new int[nbShape];
+ nodeID = new int[4];
+ coord = new double[3];
+ node = new const SMDS_MeshNode*[4];
+
+ TopoDS_Shape aSolid;
+ SMDS_MeshNode * aNewNode;
+ map <int,const SMDS_MeshNode*>::iterator itOnNode;
+ SMDS_MeshElement* aTet;
+
+ for (int i=0; i<nbShape; i++)
+ tabID[i] = 0;
+
+ // Read the file state
+ fileStat = fstat(fileOpen, &status);
+ length = status.st_size;
+
+ // Mapping the result file into memory
+ ptr = (char *) mmap(0,length,PROT_READ,MAP_PRIVATE,fileOpen,0);
+ mapPtr = ptr;
+
+ ptr = readMapIntLine(ptr, tab);
+ tetraPtr = ptr;
+
+ nbElems = tab[0];
+ nbNodes = tab[1];
+ nbInputNodes = tab[2];
+
+ nodeAssigne = new int[ nbNodes+1 ];
+
+ // Reading the nodeId
+ for (int i=0; i < 4*nbElems; i++)
+ nodeId = strtol(ptr, &ptr, 10);
+
+ // Reading the nodeCoor and update the nodeMap
+ for (int iNode=0; iNode < nbNodes; iNode++) {
+ for (int iCoor=0; iCoor < 3; iCoor++)
+ coord[ iCoor ] = strtod(ptr, &ptr);
+ nodeAssigne[ iNode+1 ] = 1;
+ if ( (iNode+1) > nbInputNodes ) {
+ nodeAssigne[ iNode+1 ] = 0;
+ aNewNode = theMeshDS->AddNode( coord[0],coord[1],coord[2] );
+ theGhs3dIdToNodeMap.insert(make_pair( (iNode+1), aNewNode ));
+ }
+ }
-//=======================================================================
-//function : readResult
-//purpose :
-//=======================================================================
+ // Reading the number of triangles which corresponds to the number of shapes
+ nbTriangle = strtol(ptr, &ptr, 10);
-static bool readResult(FILE * theFile,
- SMESHDS_Mesh * theMesh,
- const TopoDS_Shape& theShape,
- map <int,const SMDS_MeshNode*>& theGhs3dIdToNodeMap)
-{
- // structure:
-
- // record 1:
- // NB_ELEMENTS NB_NODES NB_INPUT_NODES (14 DUMMY_INT)
- // record 2:
- // (NB_ELEMENTS * 4) node nbs
- // record 3:
- // (NB_NODES) node XYZ
-
- char aBuffer[ GHS3DPlugin_BUFLENGTH ];
- char * aPtr;
- int aLineNb = 0;
- int shapeID = theMesh->ShapeToIndex( theShape );
-
- // ----------------------------------------
- // record 1:
- // read nb of generated elements and nodes
- // ----------------------------------------
- int nbElems = 0 , nbNodes = 0, nbInputNodes = 0;
- GHS3DPlugin_ReadLine( aPtr, aBuffer, theFile, aLineNb );
- if (!aPtr ||
- !getInt( nbElems, aPtr ) ||
- !getInt( nbNodes, aPtr ) ||
- !getInt( nbInputNodes, aPtr))
- return false;
+ for (int i=0; i < 3*nbShape; i++)
+ triangleId = strtol(ptr, &ptr, 10);
- // -------------------------------------------
- // record 2:
- // read element nodes and create tetrahedrons
- // -------------------------------------------
- GHS3DPlugin_ReadLine( aPtr, aBuffer, theFile, aLineNb );
- for (int iElem = 0; iElem < nbElems; iElem++)
- {
- // read 4 nodes
- const SMDS_MeshNode * node[4];
- for (int iNode = 0; iNode < 4; iNode++)
- {
- // read Ghs3d node ID
- int ID = 0;
- if (!aPtr || ! getInt ( ID, aPtr ))
- {
- GHS3DPlugin_ReadLine( aPtr, aBuffer, theFile, aLineNb );
- if (!aPtr || ! getInt ( ID, aPtr ))
- {
- MESSAGE( "Cant read " << (iNode+1) << "-th node on line " << aLineNb );
- return false;
- }
- }
- // find/create a node with ID
- map <int,const SMDS_MeshNode*>::iterator IdNode = theGhs3dIdToNodeMap.find( ID );
- if ( IdNode == theGhs3dIdToNodeMap.end())
- {
- // ID is not yet in theGhs3dIdToNodeMap
- ASSERT ( ID > nbInputNodes ); // it should be a new one
- SMDS_MeshNode * aNewNode = theMesh->AddNode( 0.,0.,0. ); // read XYZ later
- theMesh->SetNodeInVolume( aNewNode, shapeID );
- theGhs3dIdToNodeMap.insert ( make_pair( ID, aNewNode ));
- node[ iNode ] = aNewNode;
+ shapePtr = ptr;
+
+ // Associating the tetrahedrons to the shapes
+ shapeID = compoundID;
+ for (int iElem = 0; iElem < nbElems; iElem++) {
+ for (int iNode = 0; iNode < 4; iNode++) {
+ ID = strtol(tetraPtr, &tetraPtr, 10);
+ itOnNode = theGhs3dIdToNodeMap.find(ID);
+ node[ iNode ] = itOnNode->second;
+ nodeID[ iNode ] = ID;
+ }
+ aTet = theMeshDS->AddVolume( node[1], node[0], node[2], node[3] );
+ if ( nbShape > 1 ) {
+ ghs3dShapeID = strtol(shapePtr, &shapePtr, 10) - IdShapeRef;
+ if ( tabID[ ghs3dShapeID ] == 0 ) {
+ if (iElem == 0)
+ aSolid = tabShape[0];
+ aSolid = findShape(node, aSolid, tabShape, tabBox, nbShape);
+ shapeID = theMeshDS->ShapeToIndex( aSolid );
+ tabID[ ghs3dShapeID ] = shapeID;
}
else
- {
- node[ iNode ] = IdNode->second;
- }
+ shapeID = tabID[ ghs3dShapeID ];
}
- // create a tetrahedron with orientation as for MED
- SMDS_MeshElement* aTet = theMesh->AddVolume( node[1], node[0], node[2], node[3] );
- theMesh->SetMeshElementOnShape( aTet, shapeID );
+ // set new nodes and tetrahedron on to the shape
+ for ( int i=0; i<4; i++ ) {
+ if ( nodeAssigne[ nodeID[i] ] == 0 )
+ theMeshDS->SetNodeInVolume( node[i], shapeID );
+ }
+ theMeshDS->SetMeshElementOnShape( aTet, shapeID );
+ if ( (iElem + 1) == nbElems )
+ cout << nbElems << " tetrahedrons have been associated to " << nbShape << " shapes" << endl;
}
+ munmap(mapPtr, length);
+ close(fileOpen);
- // ------------------------
- // record 3:
- // read and set nodes' XYZ
- // ------------------------
- GHS3DPlugin_ReadLine( aPtr, aBuffer, theFile, aLineNb );
- for (int iNode = 0; iNode < nbNodes; iNode++)
- {
- // read 3 coordinates
- double coord [3];
- for (int iCoord = 0; iCoord < 3; iCoord++)
- {
- if (!aPtr || ! getDouble ( coord[ iCoord ], aPtr ))
- {
- GHS3DPlugin_ReadLine( aPtr, aBuffer, theFile, aLineNb );
- if (!aPtr || ! getDouble ( coord[ iCoord ], aPtr ))
- {
- MESSAGE( "Cant read " << (iCoord+1) << "-th node coord on line " << aLineNb );
- return false;
- }
- }
+ delete [] tab;
+ delete [] tabID;
+ delete [] nodeID;
+ delete [] coord;
+ delete [] node;
+
+ return true;
+}
+
+//=======================================================================
+//function : readResultFile
+//purpose :
+//=======================================================================
+
+static bool readResultFile(const int fileOpen,
+ SMESHDS_Mesh* theMeshDS,
+ TopoDS_Shape aSolid,
+ vector <const SMDS_MeshNode*>& theNodeByGhs3dId) {
+
+ struct stat status;
+ size_t length;
+
+ char *ptr, *mapPtr;
+ char *tetraPtr;
+ char *shapePtr;
+
+ int fileStat;
+ int nbElems, nbNodes, nbInputNodes;
+ int nodeId, triangleId;
+ int nbTriangle;
+ int ID, shapeID;
+
+ int *tab;
+ double *coord;
+ const SMDS_MeshNode **node;
+
+ tab = new int[3];
+ coord = new double[3];
+ node = new const SMDS_MeshNode*[4];
+
+ SMDS_MeshNode * aNewNode;
+ map <int,const SMDS_MeshNode*>::iterator IdNode;
+ SMDS_MeshElement* aTet;
+
+ // Read the file state
+ fileStat = fstat(fileOpen, &status);
+ length = status.st_size;
+
+ // Mapping the result file into memory
+ ptr = (char *) mmap(0,length,PROT_READ,MAP_PRIVATE,fileOpen,0);
+ mapPtr = ptr;
+
+ ptr = readMapIntLine(ptr, tab);
+ tetraPtr = ptr;
+
+ nbElems = tab[0];
+ nbNodes = tab[1];
+ nbInputNodes = tab[2];
+
+ theNodeByGhs3dId.resize( nbNodes );
+
+ // Reading the nodeId
+ for (int i=0; i < 4*nbElems; i++)
+ nodeId = strtol(ptr, &ptr, 10);
+
+ // Reading the nodeCoor and update the nodeMap
+ shapeID = theMeshDS->ShapeToIndex( aSolid );
+ for (int iNode=0; iNode < nbNodes; iNode++) {
+ for (int iCoor=0; iCoor < 3; iCoor++)
+ coord[ iCoor ] = strtod(ptr, &ptr);
+ if ((iNode+1) > nbInputNodes) {
+ aNewNode = theMeshDS->AddNode( coord[0],coord[1],coord[2] );
+ theMeshDS->SetNodeInVolume( aNewNode, shapeID );
+ theNodeByGhs3dId[ iNode ] = aNewNode;
}
- // do not move old nodes
- int ID = iNode + 1;
- if (ID <= nbInputNodes)
- continue;
- // find a node
- map <int,const SMDS_MeshNode*>::iterator IdNode = theGhs3dIdToNodeMap.find( ID );
- ASSERT ( IdNode != theGhs3dIdToNodeMap.end());
- SMDS_MeshNode* node = const_cast<SMDS_MeshNode*> ( (*IdNode).second );
+ }
+
+ // Reading the triangles
+ nbTriangle = strtol(ptr, &ptr, 10);
+
+ for (int i=0; i < 3*nbTriangle; i++)
+ triangleId = strtol(ptr, &ptr, 10);
+
+ shapePtr = ptr;
- // set XYZ
- theMesh->MoveNode( node, coord[0], coord[1], coord[2] );
+ // Associating the tetrahedrons to the shapes
+ for (int iElem = 0; iElem < nbElems; iElem++) {
+ for (int iNode = 0; iNode < 4; iNode++) {
+ ID = strtol(tetraPtr, &tetraPtr, 10);
+ node[ iNode ] = theNodeByGhs3dId[ ID-1 ];
+ }
+ aTet = theMeshDS->AddVolume( node[1], node[0], node[2], node[3] );
+ shapeID = theMeshDS->ShapeToIndex( aSolid );
+ theMeshDS->SetMeshElementOnShape( aTet, shapeID );
}
+ if ( nbElems )
+ cout << nbElems << " tetrahedrons have been associated to " << nbTriangle << " shapes" << endl;
+ munmap(mapPtr, length);
+ close(fileOpen);
+
+ delete [] tab;
+ delete [] coord;
+ delete [] node;
- return nbElems;
+ return true;
}
//=======================================================================
return aTmpDir;
}
+//================================================================================
+/*!
+ * \brief Look for a line containing a text in a file
+ * \retval bool - true if the line is found
+ */
+//================================================================================
+
+static bool findLineContaing(const TCollection_AsciiString& theText,
+ const TCollection_AsciiString& theFile,
+ TCollection_AsciiString & theFoundLine)
+{
+ bool found = false;
+ if ( FILE * aFile = fopen( theFile.ToCString(), "r" ))
+ {
+ char * aPtr;
+ char aBuffer[ GHS3DPlugin_BUFLENGTH ];
+ int aLineNb = 0;
+ do {
+ GHS3DPlugin_ReadLine( aPtr, aBuffer, aFile, aLineNb );
+ if ( aPtr ) {
+ theFoundLine = aPtr;
+ found = theFoundLine.Search( theText ) >= 0;
+ }
+ } while ( aPtr && !found );
+
+ fclose( aFile );
+ }
+ return found;
+}
+
//=============================================================================
/*!
*Here we are going to use the GHS3D mesher
bool GHS3DPlugin_GHS3D::Compute(SMESH_Mesh& theMesh,
const TopoDS_Shape& theShape)
{
- MESSAGE("GHS3DPlugin_GHS3D::Compute");
-
+ bool Ok(false);
SMESHDS_Mesh* meshDS = theMesh.GetMeshDS();
+ _nbShape = countShape( meshDS, TopAbs_SOLID ); // we count the number of shapes
+
+ // create bounding box for every shape inside the compound
+
+ int iShape = 0;
+ TopoDS_Shape* tabShape;
+ double** tabBox;
+ tabShape = new TopoDS_Shape[_nbShape];
+ tabBox = new double*[_nbShape];
+ for (int i=0; i<_nbShape; i++)
+ tabBox[i] = new double[6];
+ Standard_Real Xmin, Ymin, Zmin, Xmax, Ymax, Zmax;
+
+ TopExp_Explorer expBox (meshDS->ShapeToMesh(), TopAbs_SOLID);
+ for (; expBox.More(); expBox.Next()) {
+ tabShape[iShape] = expBox.Current();
+ Bnd_Box BoundingBox;
+ BRepBndLib::Add(expBox.Current(), BoundingBox);
+ BoundingBox.Get(Xmin, Ymin, Zmin, Xmax, Ymax, Zmax);
+ tabBox[iShape][0] = Xmin; tabBox[iShape][1] = Xmax;
+ tabBox[iShape][2] = Ymin; tabBox[iShape][3] = Ymax;
+ tabBox[iShape][4] = Zmin; tabBox[iShape][5] = Zmax;
+ iShape++;
+ }
+
+ cout << endl;
+ cout << "Ghs3d execution..." << endl;
+
// make a unique working file name
// to avoid access to the same files by eg different users
ofstream aFacesFile ( aFacesFileName.ToCString() , ios::out);
ofstream aPointsFile ( aPointsFileName.ToCString() , ios::out);
- bool Ok =
+
+ Ok =
#ifdef WIN32
aFacesFile->is_open() && aPointsFile->is_open();
#else
aFacesFile.rdbuf()->is_open() && aPointsFile.rdbuf()->is_open();
#endif
- if (!Ok)
- {
+ if (!Ok) {
INFOS( "Can't write into " << aTmpDir.ToCString());
- return false;
+ return error(SMESH_Comment("Can't write into ") << aTmpDir);
}
map <int,int> aSmdsToGhs3dIdMap;
map <int,const SMDS_MeshNode*> aGhs3dIdToNodeMap;
- Ok =
- (writePoints( aPointsFile, meshDS, aSmdsToGhs3dIdMap, aGhs3dIdToNodeMap ) &&
- writeFaces ( aFacesFile, meshDS, theShape, aSmdsToGhs3dIdMap ));
+ Ok = writePoints( aPointsFile, meshDS, aSmdsToGhs3dIdMap, aGhs3dIdToNodeMap ) &&
+ writeFaces ( aFacesFile, meshDS, aSmdsToGhs3dIdMap );
aFacesFile.close();
aPointsFile.close();
OSD_File( aFacesFileName ).Remove();
OSD_File( aPointsFileName ).Remove();
}
- return false;
+ return error(COMPERR_BAD_INPUT_MESH);
}
// -----------------
// ghs3d need to know amount of memory it may use (MB).
// Default memory is defined at ghs3d installation but it may be not enough,
// so allow to use about all available memory
+
TCollection_AsciiString memory;
#ifndef WIN32
struct sysinfo si;
int err = sysinfo( &si );
if ( err == 0 ) {
+ int freeMem = si.totalram * si.mem_unit / 1024 / 1024;
memory = "-m ";
- memory += int ( 0.8 * ( si.freeram + si.freeswap ) * si.mem_unit / 1024 / 1024 );
+ memory += int( 0.7 * freeMem );
}
#endif
+ MESSAGE("GHS3DPlugin_GHS3D::Compute");
TCollection_AsciiString cmd( "ghs3d " ); // command to run
cmd +=
- memory + // memory
- " -f " + aGenericName + // file to read
- " 1>" + aLogFileName; // dump into file
+ memory + // memory
+ " -c0 -f " + aGenericName + // file to read
+ " 1>" + aLogFileName; // dump into file
system( cmd.ToCString() ); // run
+ cout << endl;
+ cout << "End of Ghs3d execution !" << endl;
+
// --------------
// read a result
// --------------
- FILE * aResultFile = fopen( aResultFileName.ToCString(), "r" );
- if (aResultFile)
+ // Mapping the result file
+
+ int fileOpen;
+ fileOpen = open( aResultFileName.ToCString(), O_RDONLY);
+ if ( fileOpen < 0 ) {
+ cout << endl;
+ cout << "Can't open the " << aResultFileName.ToCString() << " GHS3D output file" << endl;
+ Ok = false;
+ }
+ else
+ Ok = readResultFile( fileOpen, meshDS, tabShape, tabBox, _nbShape, aGhs3dIdToNodeMap );
+
+ // ---------------------
+ // remove working files
+ // ---------------------
+
+ if ( Ok )
{
- Ok = readResult( aResultFile, meshDS, theShape, aGhs3dIdToNodeMap );
- fclose(aResultFile);
+ OSD_File( aLogFileName ).Remove();
+ }
+ else if ( OSD_File( aLogFileName ).Size() > 0 )
+ {
+ INFOS( "GHS3D Error, see the " << aLogFileName.ToCString() << " file" );
+
+ // get problem description from the log file
+ SMESH_Comment comment;
+ TCollection_AsciiString foundLine;
+ if ( findLineContaing( "has expired",aLogFileName,foundLine) &&
+ foundLine.Search("Licence") >= 0)
+ {
+ foundLine.LeftAdjust();
+ comment << foundLine;
+ }
+ if ( findLineContaing( "%% ERROR",aLogFileName,foundLine))
+ {
+ foundLine.LeftAdjust();
+ comment << foundLine;
+ }
+ if ( findLineContaing( "%% NO SAVING OPERATION",aLogFileName,foundLine))
+ {
+ comment << "Too many elements generated for a trial version.\n";
+ }
+ if ( comment.empty() )
+ comment << "See " << aLogFileName << " for problem description";
+ else
+ comment << "See " << aLogFileName << " for more information";
+ error(COMPERR_ALGO_FAILED, comment);
}
else
- Ok = false;
+ {
+ // the log file is empty
+ OSD_File( aLogFileName ).Remove();
+ INFOS( "GHS3D Error, command '" << cmd.ToCString() << "' failed" );
+ error(COMPERR_ALGO_FAILED, "ghs3d: command not found" );
+ }
+
+ if ( !getenv("GHS3D_KEEP_FILES") ) {
+ OSD_File( aFacesFileName ).Remove();
+ OSD_File( aPointsFileName ).Remove();
+ OSD_File( aResultFileName ).Remove();
+ OSD_File( aBadResFileName ).Remove();
+ OSD_File( aBbResFileName ).Remove();
+ }
+ cout << "<" << aResultFileName.ToCString() << "> GHS3D output file ";
+ if ( !Ok )
+ cout << "not ";
+ cout << "treated !" << endl;
+ cout << endl;
+
+ _nbShape = 0; // re-initializing _nbShape for the next Compute() method call
+ delete [] tabShape;
+ delete [] tabBox;
+
+ return Ok;
+}
+
+//=============================================================================
+/*!
+ *Here we are going to use the GHS3D mesher w/o geometry
+ */
+//=============================================================================
+bool GHS3DPlugin_GHS3D::Compute(SMESH_Mesh& theMesh,
+ SMESH_MesherHelper* aHelper)
+{
+ MESSAGE("GHS3DPlugin_GHS3D::Compute()");
+
+ SMESHDS_Mesh* meshDS = theMesh.GetMeshDS();
+ TopoDS_Shape theShape = aHelper->GetSubShape();
+ // make a unique working file name
+ // to avoid access to the same files by eg different users
+
+ TCollection_AsciiString aGenericName, aTmpDir = getTmpDir();
+ aGenericName = aTmpDir + "GHS3D_";
+#ifdef WIN32
+ aGenericName += GetCurrentProcessId();
+#else
+ aGenericName += getpid();
+#endif
+ aGenericName += "_";
+ aGenericName += meshDS->ShapeToIndex( theShape );
+
+ TCollection_AsciiString aFacesFileName, aPointsFileName, aResultFileName;
+ TCollection_AsciiString aBadResFileName, aBbResFileName, aLogFileName;
+ aFacesFileName = aGenericName + ".faces"; // in faces
+ aPointsFileName = aGenericName + ".points"; // in points
+ aResultFileName = aGenericName + ".noboite";// out points and volumes
+ aBadResFileName = aGenericName + ".boite"; // out bad result
+ aBbResFileName = aGenericName + ".bb"; // out vertex stepsize
+ aLogFileName = aGenericName + ".log"; // log
+
+ // -----------------
+ // make input files
+ // -----------------
+
+ ofstream aFacesFile ( aFacesFileName.ToCString() , ios::out);
+ ofstream aPointsFile ( aPointsFileName.ToCString() , ios::out);
+ bool Ok =
+#ifdef WIN32
+ aFacesFile->is_open() && aPointsFile->is_open();
+#else
+ aFacesFile.rdbuf()->is_open() && aPointsFile.rdbuf()->is_open();
+#endif
+
+ if (!Ok)
+ return error( SMESH_Comment("Can't write into ") << aTmpDir.ToCString());
+
+ vector <const SMDS_MeshNode*> aNodeByGhs3dId;
+
+ Ok = (writeFaces ( aFacesFile, meshDS, aNodeByGhs3dId ) &&
+ writePoints( aPointsFile, meshDS, aNodeByGhs3dId));
+
+ aFacesFile.close();
+ aPointsFile.close();
+
+ if ( ! Ok ) {
+ if ( !getenv("GHS3D_KEEP_FILES") ) {
+ OSD_File( aFacesFileName ).Remove();
+ OSD_File( aPointsFileName ).Remove();
+ }
+ return error(COMPERR_BAD_INPUT_MESH);
+ }
+
+ // -----------------
+ // run ghs3d mesher WIN32???
+ // -----------------
+
+ // ghs3d need to know amount of memory it may use (MB).
+ // Default memory is defined at ghs3d installation but it may be not enough,
+ // so allow to use about all available memory
+ TCollection_AsciiString memory;
+#ifdef WIN32
+ // ????
+#else
+ struct sysinfo si;
+ int err = sysinfo( &si );
+ if ( !err ) {
+ int freeMem = si.totalram * si.mem_unit / 1024 / 1024;
+ memory = "-m ";
+ memory += int( 0.7 * freeMem );
+ }
+#endif
+
+ TCollection_AsciiString cmd( "ghs3d " ); // command to run
+ cmd +=
+ memory + // memory
+ " -f " + aGenericName + // file to read
+ " 1>" + aLogFileName; // dump into file
+
+
+
+ system( cmd.ToCString() ); // run
+
+ // --------------
+ // read a result
+ // --------------
+ int fileOpen;
+ fileOpen = open( aResultFileName.ToCString(), O_RDONLY);
+ if ( fileOpen < 0 ) {
+ cout << endl;
+ cout << "Error when opening the " << aResultFileName.ToCString() << " file" << endl;
+ cout << endl;
+ Ok = false;
+ }
+ else {
+ Ok = readResultFile( fileOpen, meshDS, theShape ,aNodeByGhs3dId );
+ }
+
// ---------------------
// remove working files
// ---------------------
- if ( Ok ) {
+ if ( Ok )
+ {
OSD_File( aLogFileName ).Remove();
}
- else if ( OSD_File( aLogFileName ).Size() > 0 ) {
- INFOS( "GHS3D Error: see " << aLogFileName.ToCString() );
+ else if ( OSD_File( aLogFileName ).Size() > 0 )
+ {
+ INFOS( "GHS3D Error, see the " << aLogFileName.ToCString() << " file" );
+
+ // get problem description from the log file
+ SMESH_Comment comment;
+ TCollection_AsciiString foundLine;
+ if ( findLineContaing( "has expired",aLogFileName,foundLine) &&
+ foundLine.Search("Licence") >= 0)
+ {
+ foundLine.LeftAdjust();
+ comment << foundLine;
+ }
+ if ( findLineContaing( "%% ERROR",aLogFileName,foundLine))
+ {
+ foundLine.LeftAdjust();
+ comment << foundLine;
+ }
+ if ( findLineContaing( "%% NO SAVING OPERATION",aLogFileName,foundLine))
+ {
+ comment << "Too many elements generated for a trial version.\n";
+ }
+ if ( comment.empty() )
+ comment << "See " << aLogFileName << " for problem description";
+ else
+ comment << "See " << aLogFileName << " for more information";
+ error(COMPERR_ALGO_FAILED, comment);
}
else {
+ // the log file is empty
OSD_File( aLogFileName ).Remove();
- INFOS( "GHS3D Error: command '" << cmd.ToCString() << "' failed" );
+ INFOS( "GHS3D Error, command '" << cmd.ToCString() << "' failed" );
+ error(COMPERR_ALGO_FAILED, "ghs3d: command not found" );
}
if ( !getenv("GHS3D_KEEP_FILES") )
return Ok;
}
-
//=============================================================================
/*!
*
