// load boundary nodes into sweeper
bool dummy;
- const SMDS_MeshNode* prevN0 = 0, *prevN1 = 0;
+ std::set< const SMDS_MeshNode* > usedEndNodes;
list< TopoDS_Edge >::const_iterator edge = thePrism.myBottomEdges.begin();
for ( ; edge != thePrism.myBottomEdges.end(); ++edge )
{
TParam2ColumnMap::iterator u2colIt = u2col->begin(), u2colEnd = u2col->end();
const SMDS_MeshNode* n0 = u2colIt->second[0];
const SMDS_MeshNode* n1 = u2col->rbegin()->second[0];
- if ( n0 == prevN0 || n0 == prevN1 ) ++u2colIt;
- if ( n1 == prevN0 || n1 == prevN1 ) --u2colEnd;
- prevN0 = n0; prevN1 = n1;
+ if ( !usedEndNodes.insert ( n0 ).second ) ++u2colIt;
+ if ( !usedEndNodes.insert ( n1 ).second ) --u2colEnd;
for ( ; u2colIt != u2colEnd; ++u2colIt )
sweeper.myBndColumns.push_back( & u2colIt->second );
TopoDS_Vertex v = myHelper->IthVertex( is2ndV, E );
mesh->GetSubMesh( v )->ComputeStateEngine( SMESH_subMesh::COMPUTE );
const SMDS_MeshNode* n = SMESH_Algo::VertexNode( v, meshDS );
- newNodes[ is2ndV ? 0 : newNodes.size()-1 ] = (SMDS_MeshNode*) n;
+ newNodes[ is2ndV ? newNodes.size()-1 : 0 ] = (SMDS_MeshNode*) n;
}
// compute nodes on target EDGEs
if ( !myHelper->LoadNodeColumns( faceColumns, (*quad)->face, quadBot, meshDS ))
return error(COMPERR_BAD_INPUT_MESH, TCom("Can't find regular quadrangle mesh ")
<< "on a side face #" << MeshDS()->ShapeToIndex( (*quad)->face ));
-
- if ( !faceColumns.empty() && (int)faceColumns.begin()->second.size() != VerticalSize() )
- return error(COMPERR_BAD_INPUT_MESH, "Different 'vertical' discretization");
}
+ if ( !faceColumns.empty() && (int)faceColumns.begin()->second.size() != VerticalSize() )
+ return error(COMPERR_BAD_INPUT_MESH, "Different 'vertical' discretization");
+
// edge columns
int id = MeshDS()->ShapeToIndex( *edgeIt );
bool isForward = true; // meaningless for intenal wires
const vector< gp_XYZ >& toBndPoints,
const vector< gp_XYZ >& fromIntPoints,
vector< gp_XYZ >& toIntPoints,
+ const double r,
NSProjUtils::TrsfFinder3D& trsf,
vector< gp_XYZ > * bndError)
{
(*bndError)[ iP ] = toBndPoints[ iP ] - fromTrsf;
}
}
- return true;
-}
-
-//================================================================================
-/*!
- * \brief Add boundary error to ineternal points
- */
-//================================================================================
-void StdMeshers_Sweeper::applyBoundaryError(const vector< gp_XYZ >& bndPoints,
- const vector< gp_XYZ >& bndError1,
- const vector< gp_XYZ >& bndError2,
- const double r,
- vector< gp_XYZ >& intPoints,
- vector< double >& int2BndDist)
-{
- // fix each internal point
- const double eps = 1e-100;
- for ( size_t iP = 0; iP < intPoints.size(); ++iP )
+ // apply boundary error
+ if ( bndError && toIntPoints.size() == myTopBotTriangles.size() )
{
- gp_XYZ & intPnt = intPoints[ iP ];
-
- // compute distance from intPnt to each boundary node
- double int2BndDistSum = 0;
- for ( size_t iBnd = 0; iBnd < bndPoints.size(); ++iBnd )
+ for ( size_t iP = 0; iP < toIntPoints.size(); ++iP )
{
- int2BndDist[ iBnd ] = 1 / (( intPnt - bndPoints[ iBnd ]).SquareModulus() + eps );
- int2BndDistSum += int2BndDist[ iBnd ];
- }
-
- // apply bndError
- for ( size_t iBnd = 0; iBnd < bndPoints.size(); ++iBnd )
- {
- intPnt += bndError1[ iBnd ] * ( 1 - r ) * int2BndDist[ iBnd ] / int2BndDistSum;
- intPnt += bndError2[ iBnd ] * r * int2BndDist[ iBnd ] / int2BndDistSum;
+ const TopBotTriangles& tbTrias = myTopBotTriangles[ iP ];
+ for ( int i = 0; i < 3; ++i ) // boundary errors at 3 triangle nodes
+ {
+ toIntPoints[ iP ] +=
+ ( (*bndError)[ tbTrias.myBotTriaNodes[i] ] * tbTrias.myBotBC[i] * ( 1 - r ) +
+ (*bndError)[ tbTrias.myTopTriaNodes[i] ] * tbTrias.myTopBC[i] * ( r ));
+ }
}
}
+
+ return true;
}
//================================================================================
intPntsOfLayer[ zTgt ][ iP ] = intPoint( iP, zTgt );
}
+ // for each internal column find boundary nodes whose error to use for correction
+ prepareTopBotDelaunay();
+ findDelaunayTriangles();
+
// compute coordinates of internal nodes by projecting (transfroming) src and tgt
// nodes towards the central layer
}
if (! projectIntPoints( fromSrcBndPnts, toSrcBndPnts,
intPntsOfLayer[ zS-1 ], intPntsOfLayer[ zS ],
+ zS / ( zSize - 1.),
trsfOfLayer [ zS-1 ], & bndError[ zS-1 ]))
return false;
if (! projectIntPoints( fromTgtBndPnts, toTgtBndPnts,
intPntsOfLayer[ zT+1 ], intPntsOfLayer[ zT ],
+ zT / ( zSize - 1.),
trsfOfLayer [ zT+1 ], & bndError[ zT+1 ]))
return false;
}
if (! projectIntPoints( fromSrcBndPnts, toSrcBndPnts,
intPntsOfLayer[ zS-1 ], centerSrcIntPnts,
+ zS / ( zSize - 1.),
trsfOfLayer [ zS-1 ], & bndError[ zS-1 ]))
return false;
if (! projectIntPoints( fromTgtBndPnts, toTgtBndPnts,
intPntsOfLayer[ zT+1 ], centerTgtIntPnts,
+ zT / ( zSize - 1.),
trsfOfLayer [ zT+1 ], & bndError[ zT+1 ]))
return false;
(intPntsOfLayer[ zS-1 ][ iP ] - centerTgtIntPnts[ iP ]).SquareModulus() < tol*tol;
}
- // Evaluate an error of boundary points
-
- bool bndErrorIsSmall = true;
- for ( size_t iP = 0; ( iP < myBndColumns.size() && bndErrorIsSmall ); ++iP )
- {
- double sumError = 0;
- for ( size_t z = 1; z < zS; ++z ) // loop on layers
- sumError += ( bndError[ z-1 ][ iP ].Modulus() +
- bndError[ zSize-z ][ iP ].Modulus() );
-
- bndErrorIsSmall = ( sumError < tol );
- }
-
- if ( !bndErrorIsSmall && !allowHighBndError )
- return false;
-
// compute final points on the central layer
- std::vector< double > int2BndDist( myBndColumns.size() ); // work array of applyBoundaryError()
double r = zS / ( zSize - 1.);
if ( zS == zT )
{
intPntsOfLayer[ zS ][ iP ] =
( 1 - r ) * centerSrcIntPnts[ iP ] + r * centerTgtIntPnts[ iP ];
}
- if ( !bndErrorIsSmall )
- {
- applyBoundaryError( toSrcBndPnts, bndError[ zS-1 ], bndError[ zS+1 ], r,
- intPntsOfLayer[ zS ], int2BndDist );
- }
}
else
{
intPntsOfLayer[ zT ][ iP ] =
r * intPntsOfLayer[ zT ][ iP ] + ( 1 - r ) * centerTgtIntPnts[ iP ];
}
- if ( !bndErrorIsSmall )
- {
- applyBoundaryError( toSrcBndPnts, bndError[ zS-1 ], bndError[ zS+1 ], r,
- intPntsOfLayer[ zS ], int2BndDist );
- applyBoundaryError( toTgtBndPnts, bndError[ zT+1 ], bndError[ zT-1 ], r,
- intPntsOfLayer[ zT ], int2BndDist );
- }
}
- centerIntErrorIsSmall = true; // 3D_mesh_Extrusion_00/A3
- bndErrorIsSmall = true;
+ //centerIntErrorIsSmall = true; // 3D_mesh_Extrusion_00/A3
if ( !centerIntErrorIsSmall )
{
// Compensate the central error; continue adding projection
}
projectIntPoints( fromSrcBndPnts, toSrcBndPnts,
fromSrcIntPnts, toSrcIntPnts,
+ zS / ( zSize - 1.),
trsfOfLayer[ zS+1 ], & srcBndError );
projectIntPoints( fromTgtBndPnts, toTgtBndPnts,
fromTgtIntPnts, toTgtIntPnts,
+ zT / ( zSize - 1.),
trsfOfLayer[ zT-1 ], & tgtBndError );
// if ( zS == zTgt - 1 )
zTIntPnts[ iP ] = r * zTIntPnts[ iP ] + ( 1 - r ) * toTgtIntPnts[ iP ];
}
- // compensate bnd error
- if ( !bndErrorIsSmall )
- {
- applyBoundaryError( toSrcBndPnts, srcBndError, bndError[ zS+1 ], r,
- intPntsOfLayer[ zS ], int2BndDist );
- applyBoundaryError( toTgtBndPnts, tgtBndError, bndError[ zT-1 ], r,
- intPntsOfLayer[ zT ], int2BndDist );
- }
-
fromSrcBndPnts.swap( toSrcBndPnts );
fromSrcIntPnts.swap( toSrcIntPnts );
fromTgtBndPnts.swap( toTgtBndPnts );
}
} // if ( !centerIntErrorIsSmall )
- else if ( !bndErrorIsSmall )
- {
- zS = zSrc + 1;
- zT = zTgt - 1;
- for ( ; zS < zT; ++zS, --zT ) // vertical loop on layers
- {
- for ( size_t iP = 0; iP < myBndColumns.size(); ++iP )
- {
- toSrcBndPnts[ iP ] = bndPoint( iP, zS );
- toTgtBndPnts[ iP ] = bndPoint( iP, zT );
- }
- // compensate bnd error
- applyBoundaryError( toSrcBndPnts, bndError[ zS-1 ], bndError[ zS-1 ], 0.5,
- intPntsOfLayer[ zS ], int2BndDist );
- applyBoundaryError( toTgtBndPnts, bndError[ zT+1 ], bndError[ zT+1 ], 0.5,
- intPntsOfLayer[ zT ], int2BndDist );
- }
- }
- // cout << "centerIntErrorIsSmall = " << centerIntErrorIsSmall<< endl;
- // cout << "bndErrorIsSmall = " << bndErrorIsSmall<< endl;
+ //cout << "centerIntErrorIsSmall = " << centerIntErrorIsSmall<< endl;
// Create nodes
for ( size_t iP = 0; iP < myIntColumns.size(); ++iP )
myNodeID2ColID.Bind( botNode->GetID(), i );
}
}
+
+//================================================================================
+/*!
+ * \brief For each internal node column, find Delaunay triangles including it
+ * and Barycentric Coordinates withing the triangles. Fill in myTopBotTriangles
+ */
+//================================================================================
+
+void StdMeshers_Sweeper::findDelaunayTriangles()
+{
+ const SMDS_MeshNode *botNode, *topNode;
+ const BRepMesh_Triangle *topTria;
+ TopBotTriangles tbTrias;
+ bool checkUV = true;
+
+ int nbInternalNodes = myIntColumns.size();
+ myTopBotTriangles.resize( nbInternalNodes );
+
+ myBotDelaunay->InitTraversal( nbInternalNodes );
+
+ while (( botNode = myBotDelaunay->NextNode( tbTrias.myBotBC, tbTrias.myBotTriaNodes )))
+ {
+ int colID = myNodeID2ColID( botNode->GetID() );
+ TNodeColumn* column = myIntColumns[ colID ];
+
+ // find a Delaunay triangle containing the topNode
+ topNode = column->back();
+ gp_XY topUV = myHelper->GetNodeUV( myTopFace, topNode, NULL, &checkUV );
+ // get a starting triangle basing on that top and bot boundary nodes have same index
+ topTria = myTopDelaunay->GetTriangleNear( tbTrias.myBotTriaNodes[0] );
+ topTria = myTopDelaunay->FindTriangle( topUV, topTria,
+ tbTrias.myTopBC, tbTrias.myTopTriaNodes );
+ if ( !topTria )
+ tbTrias.SetTopByBottom();
+
+ myTopBotTriangles[ colID ] = tbTrias;
+ }
+
+#ifdef _DEBUG_
+ if ( myBotDelaunay->NbVisitedNodes() < nbInternalNodes )
+ throw SALOME_Exception(LOCALIZED("Not all internal nodes found by Delaunay"));
+#endif
+
+ myBotDelaunay.reset();
+ myTopDelaunay.reset();
+ myNodeID2ColID.Clear();
+}
+
+//================================================================================
+/*!
+ * \brief Initialize fields
+ */
+//================================================================================
+
+StdMeshers_Sweeper::TopBotTriangles::TopBotTriangles()
+{
+ myBotBC[0] = myBotBC[1] = myBotBC[2] = myTopBC[0] = myTopBC[1] = myTopBC[2] = 0.;
+ myBotTriaNodes[0] = myBotTriaNodes[1] = myBotTriaNodes[2] = 0;
+ myTopTriaNodes[0] = myTopTriaNodes[1] = myTopTriaNodes[2] = 0;
+}
+
+//================================================================================
+/*!
+ * \brief Set top data equal to bottom data
+ */
+//================================================================================
+
+void StdMeshers_Sweeper::TopBotTriangles::SetTopByBottom()
+{
+ for ( int i = 0; i < 3; ++i )
+ {
+ myTopBC[i] = myBotBC[i];
+ myTopTriaNodes[i] = myBotTriaNodes[0];
+ }
+}
