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0021542: EDF 1699 SMESH: Reorient a group of faces

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fix again for a non-manifold mesh
This commit is contained in:
eap 2012-11-21 13:01:25 +00:00
parent cc4d17c75b
commit 462f12d610
1 changed files with 17 additions and 11 deletions
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28
src/SMESH/SMESH_MeshEditor.cxx
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@ -1144,7 +1144,7 @@ int SMESH_MeshEditor::Reorient2D (TIDSortedElemSet & theFaces,
// Orient other faces // Orient other faces
set< const SMDS_MeshElement* > startFaces; set< const SMDS_MeshElement* > startFaces, visitedFaces;
TIDSortedElemSet avoidSet; TIDSortedElemSet avoidSet;
set< SMESH_TLink > checkedLinks; set< SMESH_TLink > checkedLinks;
pair< set< SMESH_TLink >::iterator, bool > linkIt_isNew; pair< set< SMESH_TLink >::iterator, bool > linkIt_isNew;
@ -1159,15 +1159,20 @@ int SMESH_MeshEditor::Reorient2D (TIDSortedElemSet & theFaces,
vector< std::pair< int, int > > nodeIndsOfFace; vector< std::pair< int, int > > nodeIndsOfFace;
set< const SMDS_MeshElement* >::iterator startFace = startFaces.begin(); set< const SMDS_MeshElement* >::iterator startFace = startFaces.begin();
while ( startFace != startFaces.end() ) while ( !startFaces.empty() )
{ {
startFace = startFaces.begin();
theFace = *startFace; theFace = *startFace;
const int nbNodes = theFace->NbCornerNodes(); startFaces.erase( startFace );
if ( !visitedFaces.insert( theFace ).second )
continue;
avoidSet.clear(); avoidSet.clear();
avoidSet.insert(theFace); avoidSet.insert(theFace);
NLink link( theFace->GetNode( 0 ), 0 ); NLink link( theFace->GetNode( 0 ), 0 );
const int nbNodes = theFace->NbCornerNodes();
for ( int i = 0; i < nbNodes; ++i ) // loop on links of theFace for ( int i = 0; i < nbNodes; ++i ) // loop on links of theFace
{ {
link.second = theFace->GetNode(( i+1 ) % nbNodes ); link.second = theFace->GetNode(( i+1 ) % nbNodes );
@ -1176,7 +1181,7 @@ int SMESH_MeshEditor::Reorient2D (TIDSortedElemSet & theFaces,
{ {
// link has already been checked and won't be encountered more // link has already been checked and won't be encountered more
// if the group (theFaces) is manifold // if the group (theFaces) is manifold
checkedLinks.erase( linkIt_isNew.first ); //checkedLinks.erase( linkIt_isNew.first );
} }
else else
{ {
@ -1192,11 +1197,12 @@ int SMESH_MeshEditor::Reorient2D (TIDSortedElemSet & theFaces,
} }
if ( facesNearLink.size() > 1 ) if ( facesNearLink.size() > 1 )
{ {
// NON-MANIFOLD mesh shell !
// select a face most co-directed with theFace, // select a face most co-directed with theFace,
// other faces won't be visited this time // other faces won't be visited this time
gp_XYZ NF, NOF; gp_XYZ NF, NOF;
SMESH_Algo::FaceNormal( theFace, NF, /*normalized=*/false ); SMESH_Algo::FaceNormal( theFace, NF, /*normalized=*/false );
double proj, maxProj = 0; double proj, maxProj = -1;
for ( size_t i = 0; i < facesNearLink.size(); ++i ) { for ( size_t i = 0; i < facesNearLink.size(); ++i ) {
SMESH_Algo::FaceNormal( facesNearLink[i], NOF, /*normalized=*/false ); SMESH_Algo::FaceNormal( facesNearLink[i], NOF, /*normalized=*/false );
if (( proj = Abs( NF * NOF )) > maxProj ) { if (( proj = Abs( NF * NOF )) > maxProj ) {
@ -1206,10 +1212,16 @@ int SMESH_MeshEditor::Reorient2D (TIDSortedElemSet & theFaces,
nodeInd2 = nodeIndsOfFace[i].second; nodeInd2 = nodeIndsOfFace[i].second;
} }
} }
// not to visit rejected faces
for ( size_t i = 0; i < facesNearLink.size(); ++i )
if ( facesNearLink[i] != otherFace && theFaces.size() > 1 )
visitedFaces.insert( facesNearLink[i] );
} }
else if ( facesNearLink.size() == 1 ) else if ( facesNearLink.size() == 1 )
{ {
otherFace = facesNearLink[0]; otherFace = facesNearLink[0];
nodeInd1 = nodeIndsOfFace.back().first;
nodeInd2 = nodeIndsOfFace.back().second;
} }
if ( otherFace && otherFace != theFace) if ( otherFace && otherFace != theFace)
{ {
@ -1217,19 +1229,13 @@ int SMESH_MeshEditor::Reorient2D (TIDSortedElemSet & theFaces,
// is same as that of theFace // is same as that of theFace
if ( abs(nodeInd2-nodeInd1) == 1 ? nodeInd2 > nodeInd1 : nodeInd1 > nodeInd2 ) if ( abs(nodeInd2-nodeInd1) == 1 ? nodeInd2 > nodeInd1 : nodeInd1 > nodeInd2 )
{ {
// cout << "Reorient " << otherFace->GetID() << " near theFace=" <<theFace->GetID()
// << " \tlink( " << link.first->GetID() << " " << link.second->GetID() << endl;
nbReori += Reorient( otherFace ); nbReori += Reorient( otherFace );
} }
startFaces.insert( otherFace ); startFaces.insert( otherFace );
if ( theFaces.size() > 1 ) // leave 1 face to prevent finding not selected faces
theFaces.erase( otherFace );
} }
} }
std::swap( link.first, link.second ); // reverse the link std::swap( link.first, link.second ); // reverse the link
} }
startFaces.erase( startFace );
startFace = startFaces.begin();
} }
return nbReori; return nbReori;
} }