// create 4 triangles
- GetMeshDS()->RemoveFreeElement( quad, subMeshDS, /*fromGroups=*/false );
-
helper.SetIsQuadratic ( nodes.size() > 4 );
helper.SetIsBiQuadratic( nodes.size() == 9 );
if ( helper.GetIsQuadratic() )
helper.AddTLinks( static_cast< const SMDS_MeshFace*>( quad ));
+ GetMeshDS()->RemoveFreeElement( quad, subMeshDS, /*fromGroups=*/false );
+
for ( int i = 0; i < 4; ++i )
{
SMDS_MeshElement* tria = helper.AddFace( nodes[ i ],
SMESH_MesherHelper helper( *GetMesh() );
TIDSortedElemSet::iterator itElem;
- for ( itElem = theElems.begin(); itElem != theElems.end(); itElem++ ) {
+ for ( itElem = theElems.begin(); itElem != theElems.end(); itElem++ )
+ {
const SMDS_MeshElement* elem = *itElem;
- if ( !elem || elem->GetType() != SMDSAbs_Face )
+ if ( !elem || elem->GetGeomType() != SMDSGeom_QUADRANGLE )
continue;
- bool isquad = elem->NbNodes()==4 || elem->NbNodes()==8;
- if(!isquad) continue;
- if(elem->NbNodes()==4) {
+ if ( elem->NbNodes() == 4 ) {
// retrieve element nodes
const SMDS_MeshNode* aNodes [4];
SMDS_ElemIteratorPtr itN = elem->nodesIterator();
myLastCreatedElems.Append(newElem2);
// put a new triangle on the same shape and add to the same groups
if ( aShapeId )
- {
- aMesh->SetMeshElementOnShape( newElem1, aShapeId );
- aMesh->SetMeshElementOnShape( newElem2, aShapeId );
- }
+ {
+ aMesh->SetMeshElementOnShape( newElem1, aShapeId );
+ aMesh->SetMeshElementOnShape( newElem2, aShapeId );
+ }
AddToSameGroups( newElem1, elem, aMesh );
AddToSameGroups( newElem2, elem, aMesh );
aMesh->RemoveElement( elem );
// Quadratic quadrangle
- if( elem->NbNodes()==8 && elem->IsQuadratic() ) {
-
+ else if ( elem->NbNodes() >= 8 )
+ {
// get surface elem is on
int aShapeId = FindShape( elem );
if ( aShapeId != helper.GetSubShapeID() ) {
}
}
- const SMDS_MeshNode* aNodes [8];
- const SMDS_MeshNode* inFaceNode = 0;
+ const SMDS_MeshNode* aNodes [9]; aNodes[8] = 0;
SMDS_ElemIteratorPtr itN = elem->nodesIterator();
- int i = 0;
- while ( itN->more() ) {
- aNodes[ i++ ] = static_cast<const SMDS_MeshNode*>( itN->next() );
- if ( !inFaceNode && helper.GetNodeUVneedInFaceNode() &&
- aNodes[ i-1 ]->GetPosition()->GetTypeOfPosition() == SMDS_TOP_FACE )
- {
- inFaceNode = aNodes[ i-1 ];
- }
- }
+ for ( int i = 0; itN->more(); ++i )
+ aNodes[ i ] = static_cast<const SMDS_MeshNode*>( itN->next() );
- // find middle point for (0,1,2,3)
- // and create a node in this point;
- gp_XYZ p( 0,0,0 );
- if ( surface.IsNull() ) {
- for(i=0; i<4; i++)
- p += gp_XYZ(aNodes[i]->X(), aNodes[i]->Y(), aNodes[i]->Z() );
- p /= 4;
- }
- else {
- TopoDS_Face geomFace = TopoDS::Face( helper.GetSubShape() );
- gp_XY uv( 0,0 );
- for(i=0; i<4; i++)
- uv += helper.GetNodeUV( geomFace, aNodes[i], inFaceNode );
- uv /= 4.;
- p = surface->Value( uv.X(), uv.Y() ).XYZ();
+ const SMDS_MeshNode* centrNode = aNodes[8];
+ if ( centrNode == 0 )
+ {
+ centrNode = helper.GetCentralNode( aNodes[0], aNodes[1], aNodes[2], aNodes[3],
+ aNodes[4], aNodes[5], aNodes[6], aNodes[7],
+ surface.IsNull() );
+ myLastCreatedNodes.Append(centrNode);
}
- const SMDS_MeshNode* newN = aMesh->AddNode( p.X(), p.Y(), p.Z() );
- myLastCreatedNodes.Append(newN);
// create a new element
const SMDS_MeshElement* newElem1 = 0;
const SMDS_MeshElement* newElem2 = 0;
if ( the13Diag ) {
newElem1 = aMesh->AddFace(aNodes[2], aNodes[3], aNodes[0],
- aNodes[6], aNodes[7], newN );
+ aNodes[6], aNodes[7], centrNode );
newElem2 = aMesh->AddFace(aNodes[2], aNodes[0], aNodes[1],
- newN, aNodes[4], aNodes[5] );
+ centrNode, aNodes[4], aNodes[5] );
}
else {
newElem1 = aMesh->AddFace(aNodes[3], aNodes[0], aNodes[1],
- aNodes[7], aNodes[4], newN );
+ aNodes[7], aNodes[4], centrNode );
newElem2 = aMesh->AddFace(aNodes[3], aNodes[1], aNodes[2],
- newN, aNodes[5], aNodes[6] );
+ centrNode, aNodes[5], aNodes[6] );
}
myLastCreatedElems.Append(newElem1);
myLastCreatedElems.Append(newElem2);
// put a new triangle on the same shape and add to the same groups
if ( aShapeId )
- {
- aMesh->SetMeshElementOnShape( newElem1, aShapeId );
- aMesh->SetMeshElementOnShape( newElem2, aShapeId );
- }
+ {
+ aMesh->SetMeshElementOnShape( newElem1, aShapeId );
+ aMesh->SetMeshElementOnShape( newElem2, aShapeId );
+ }
AddToSameGroups( newElem1, elem, aMesh );
AddToSameGroups( newElem2, elem, aMesh );
aMesh->RemoveElement( elem );