From: eap Date: Thu, 7 May 2015 17:57:17 +0000 (+0300) Subject: IPAL52698: Convert to quadratic is wrong (hard periodic surfaces) X-Git-Tag: V7_6_0rc1~7 X-Git-Url: http://git.salome-platform.org/gitweb/?a=commitdiff_plain;h=062d52d5db30036907ba749804a2a27bc7ef97f5;p=modules%2Fsmesh.git IPAL52698: Convert to quadratic is wrong (hard periodic surfaces) --- diff --git a/src/SMESH/SMESH_MesherHelper.cxx b/src/SMESH/SMESH_MesherHelper.cxx index 1bc159afa..ab4c5832c 100644 --- a/src/SMESH/SMESH_MesherHelper.cxx +++ b/src/SMESH/SMESH_MesherHelper.cxx @@ -813,18 +813,20 @@ namespace } //======================================================================= -//function : applyIn2D +//function : ApplyIn2D //purpose : Perform given operation on two 2d points in parameric space of given surface. // It takes into account period of the surface. Use gp_XY_FunPtr macro // to easily define pointer to function of gp_XY class. //======================================================================= -gp_XY SMESH_MesherHelper::applyIn2D(const Handle(Geom_Surface)& surface, - const gp_XY& uv1, - const gp_XY& uv2, - xyFunPtr fun, - const bool resultInPeriod) +gp_XY SMESH_MesherHelper::ApplyIn2D(Handle(Geom_Surface) surface, + const gp_XY& uv1, + const gp_XY& uv2, + xyFunPtr fun, + const bool resultInPeriod) { + if ( surface->IsKind(STANDARD_TYPE(Geom_RectangularTrimmedSurface ))) + surface = Handle(Geom_RectangularTrimmedSurface)::DownCast( surface )->BasisSurface(); Standard_Boolean isUPeriodic = surface.IsNull() ? false : surface->IsUPeriodic(); Standard_Boolean isVPeriodic = surface.IsNull() ? false : surface->IsVPeriodic(); if ( !isUPeriodic && !isVPeriodic ) @@ -852,6 +854,31 @@ gp_XY SMESH_MesherHelper::applyIn2D(const Handle(Geom_Surface)& surface, return res; } + +//======================================================================= +//function : AdjustByPeriod +//purpose : Move node positions on a FACE within surface period +//======================================================================= + +void SMESH_MesherHelper::AdjustByPeriod( const TopoDS_Face& face, gp_XY uv[], const int nbUV ) +{ + SMESH_MesherHelper h( *myMesh ), *ph = face.IsSame( myShape ) ? this : &h; + ph->SetSubShape( face ); + + for ( int iCoo = U_periodic; iCoo <= V_periodic; ++iCoo ) + if ( ph->GetPeriodicIndex() & iCoo ) + { + const double period = ( ph->myPar2[iCoo-1] - ph->myPar1[iCoo-1] ); + const double xRef = uv[0].Coord( iCoo ); + for ( int i = 1; i < nbUV; ++i ) + { + double x = uv[i].Coord( iCoo ); + double dx = ShapeAnalysis::AdjustByPeriod( x, xRef, period ); + uv[i].SetCoord( iCoo, x + dx ); + } + } +} + //======================================================================= //function : GetMiddleUV //purpose : Return middle UV taking in account surface period @@ -862,13 +889,13 @@ gp_XY SMESH_MesherHelper::GetMiddleUV(const Handle(Geom_Surface)& surface, const gp_XY& p2) { // NOTE: - // the proper place of getting basic surface seems to be in applyIn2D() + // the proper place of getting basic surface seems to be in ApplyIn2D() // but we put it here to decrease a risk of regressions just before releasing a version - Handle(Geom_Surface) surf = surface; - while ( !surf.IsNull() && surf->IsKind(STANDARD_TYPE(Geom_RectangularTrimmedSurface ))) - surf = Handle(Geom_RectangularTrimmedSurface)::DownCast( surf )->BasisSurface(); + // Handle(Geom_Surface) surf = surface; + // while ( !surf.IsNull() && surf->IsKind(STANDARD_TYPE(Geom_RectangularTrimmedSurface ))) + // surf = Handle(Geom_RectangularTrimmedSurface)::DownCast( surf )->BasisSurface(); - return applyIn2D( surf, p1, p2, & AverageUV ); + return ApplyIn2D( surface, p1, p2, & AverageUV ); } //======================================================================= @@ -1266,14 +1293,24 @@ const SMDS_MeshNode* SMESH_MesherHelper::GetCentralNode(const SMDS_MeshNode* n1, if ( solidID < 1 && !faceId2nbNodes.empty() ) // SOLID not found { // find ID of the FACE the four corner nodes belong to - itMapWithIdFace = faceId2nbNodes.begin(); - for ( ; itMapWithIdFace != faceId2nbNodes.end(); ++itMapWithIdFace) + itMapWithIdFace = faceId2nbNodes.find( myShapeID ); // IPAL52698 + if ( itMapWithIdFace != faceId2nbNodes.end() && + itMapWithIdFace->second == 4 ) + { + shapeType = TopAbs_FACE; + faceID = myShapeID; + } + else { - if ( itMapWithIdFace->second == 4 ) + itMapWithIdFace = faceId2nbNodes.begin(); + for ( ; itMapWithIdFace != faceId2nbNodes.end(); ++itMapWithIdFace) { - shapeType = TopAbs_FACE; - faceID = (*itMapWithIdFace).first; - break; + if ( itMapWithIdFace->second == 4 ) + { + shapeType = TopAbs_FACE; + faceID = (*itMapWithIdFace).first; + break; + } } } } @@ -1291,11 +1328,20 @@ const SMDS_MeshNode* SMESH_MesherHelper::GetCentralNode(const SMDS_MeshNode* n1, bool toCheck = true; if ( !F.IsNull() && !force3d ) { - uvAvg = calcTFI (0.5, 0.5, - GetNodeUV(F,n1,n3,&toCheck), GetNodeUV(F,n2,n4,&toCheck), - GetNodeUV(F,n3,n1,&toCheck), GetNodeUV(F,n4,n2,&toCheck), - GetNodeUV(F,n12,n3), GetNodeUV(F,n23,n4), - GetNodeUV(F,n34,n2), GetNodeUV(F,n41,n2)); + gp_XY uv[8] = { + GetNodeUV( F,n1, n3, &toCheck ), + GetNodeUV( F,n2, n4, &toCheck ), + GetNodeUV( F,n3, n1, &toCheck ), + GetNodeUV( F,n4, n2, &toCheck ), + GetNodeUV( F,n12, n3 ), + GetNodeUV( F,n23, n4 ), + GetNodeUV( F,n34, n2 ), + GetNodeUV( F,n41, n2 ) + }; + AdjustByPeriod( F, uv, 8 ); // put uv[] within a period (IPAL52698) + + uvAvg = calcTFI (0.5, 0.5, uv[0],uv[1],uv[2],uv[3], uv[4],uv[5],uv[6],uv[7] ); + TopLoc_Location loc; Handle( Geom_Surface ) S = BRep_Tool::Surface( F, loc ); P = S->Value( uvAvg.X(), uvAvg.Y() ).Transformed( loc ); @@ -1307,7 +1353,7 @@ const SMDS_MeshNode* SMESH_MesherHelper::GetCentralNode(const SMDS_MeshNode* n1, { P = calcTFI (0.5, 0.5, SMESH_TNodeXYZ(n1), SMESH_TNodeXYZ(n2), - SMESH_TNodeXYZ(n3), SMESH_TNodeXYZ(n4), + SMESH_TNodeXYZ(n3), SMESH_TNodeXYZ(n4), SMESH_TNodeXYZ(n12), SMESH_TNodeXYZ(n23), SMESH_TNodeXYZ(n34), SMESH_TNodeXYZ(n41)); centralNode = meshDS->AddNode( P.X(), P.Y(), P.Z() ); @@ -1411,14 +1457,24 @@ const SMDS_MeshNode* SMESH_MesherHelper::GetCentralNode(const SMDS_MeshNode* n1, if ( solidID < 1 && !faceId2nbNodes.empty() ) // SOLID not found { // find ID of the FACE the four corner nodes belong to - itMapWithIdFace = faceId2nbNodes.begin(); - for ( ; itMapWithIdFace != faceId2nbNodes.end(); ++itMapWithIdFace) + itMapWithIdFace = faceId2nbNodes.find( myShapeID ); // IPAL52698 + if ( itMapWithIdFace != faceId2nbNodes.end() && + itMapWithIdFace->second == 4 ) { - if ( itMapWithIdFace->second == 3 ) + shapeType = TopAbs_FACE; + faceID = myShapeID; + } + else + { + itMapWithIdFace = faceId2nbNodes.begin(); + for ( ; itMapWithIdFace != faceId2nbNodes.end(); ++itMapWithIdFace) { - shapeType = TopAbs_FACE; - faceID = (*itMapWithIdFace).first; - break; + if ( itMapWithIdFace->second == 3 ) + { + shapeType = TopAbs_FACE; + faceID = (*itMapWithIdFace).first; + break; + } } } } @@ -1430,13 +1486,18 @@ const SMDS_MeshNode* SMESH_MesherHelper::GetCentralNode(const SMDS_MeshNode* n1, { F = TopoDS::Face( meshDS->IndexToShape( faceID )); bool checkOK = true, badTria = false; - gp_XY uv1 = GetNodeUV( F, n1, n23, &checkOK ); - gp_XY uv2 = GetNodeUV( F, n2, n31, &checkOK ); - gp_XY uv3 = GetNodeUV( F, n3, n12, &checkOK ); - gp_XY uv12 = GetNodeUV( F, n12, n3, &checkOK ); - gp_XY uv23 = GetNodeUV( F, n23, n1, &checkOK ); - gp_XY uv31 = GetNodeUV( F, n31, n2, &checkOK ); - uvAvg = GetCenterUV( uv1,uv2,uv3, uv12,uv23,uv31, &badTria ); + gp_XY uv[6] = { + GetNodeUV( F, n1, n23, &checkOK ), + GetNodeUV( F, n2, n31, &checkOK ), + GetNodeUV( F, n3, n12, &checkOK ), + GetNodeUV( F, n12, n3, &checkOK ), + GetNodeUV( F, n23, n1, &checkOK ), + GetNodeUV( F, n31, n2, &checkOK ) + }; + AdjustByPeriod( F, uv, 6 ); // put uv[] within a period (IPAL52698) + + uvAvg = GetCenterUV( uv[0],uv[1],uv[2], uv[3],uv[4],uv[5], &badTria ); + if ( badTria || !checkOK ) force3d = true; } @@ -2135,7 +2196,7 @@ SMDS_MeshVolume* SMESH_MesherHelper::AddVolume(const SMDS_MeshNode* n1, const SMDS_MeshNode* n26 = GetMediumNode( n2, n6, force3d, TopAbs_SOLID ); const SMDS_MeshNode* n37 = GetMediumNode( n3, n7, force3d, TopAbs_SOLID ); const SMDS_MeshNode* n48 = GetMediumNode( n4, n8, force3d, TopAbs_SOLID ); - if(myCreateBiQuadratic) + if ( myCreateBiQuadratic ) { const SMDS_MeshNode* n1234 = GetCentralNode( n1,n2,n3,n4,n12,n23,n34,n41,force3d ); const SMDS_MeshNode* n1256 = GetCentralNode( n1,n2,n5,n6,n12,n26,n56,n15,force3d ); @@ -2170,9 +2231,9 @@ SMDS_MeshVolume* SMESH_MesherHelper::AddVolume(const SMDS_MeshNode* n1, pointsOnShapes[ SMESH_Block::ID_Fxy0 ] = SMESH_TNodeXYZ( n3478 ); pointsOnShapes[ SMESH_Block::ID_Fxy1 ] = SMESH_TNodeXYZ( n1256 ); - pointsOnShapes[ SMESH_Block::ID_Fx0z ] = SMESH_TNodeXYZ( n1458 ); - pointsOnShapes[ SMESH_Block::ID_Fx1z ] = SMESH_TNodeXYZ( n2367 ); - pointsOnShapes[ SMESH_Block::ID_F0yz ] = SMESH_TNodeXYZ( n1234 ); + pointsOnShapes[ SMESH_Block::ID_Fx0z ] = SMESH_TNodeXYZ( n1458 ); + pointsOnShapes[ SMESH_Block::ID_Fx1z ] = SMESH_TNodeXYZ( n2367 ); + pointsOnShapes[ SMESH_Block::ID_F0yz ] = SMESH_TNodeXYZ( n1234 ); pointsOnShapes[ SMESH_Block::ID_F1yz ] = SMESH_TNodeXYZ( n5678 ); gp_XYZ centerCube(0.5, 0.5, 0.5); @@ -2182,27 +2243,27 @@ SMDS_MeshVolume* SMESH_MesherHelper::AddVolume(const SMDS_MeshNode* n1, meshDS->AddNode( nCenterElem.X(), nCenterElem.Y(), nCenterElem.Z() ); meshDS->SetNodeInVolume( nCenter, myShapeID ); - if(id) + if(id) elem = meshDS->AddVolumeWithID(n1, n2, n3, n4, n5, n6, n7, n8, - n12, n23, n34, n41, n56, n67, - n78, n85, n15, n26, n37, n48, - n1234, n1256, n2367, n3478, n1458, n5678, nCenter, id); + n12, n23, n34, n41, n56, n67, + n78, n85, n15, n26, n37, n48, + n1234, n1256, n2367, n3478, n1458, n5678, nCenter, id); else elem = meshDS->AddVolume(n1, n2, n3, n4, n5, n6, n7, n8, - n12, n23, n34, n41, n56, n67, - n78, n85, n15, n26, n37, n48, - n1234, n1256, n2367, n3478, n1458, n5678, nCenter); + n12, n23, n34, n41, n56, n67, + n78, n85, n15, n26, n37, n48, + n1234, n1256, n2367, n3478, n1458, n5678, nCenter); } else { if(id) elem = meshDS->AddVolumeWithID(n1, n2, n3, n4, n5, n6, n7, n8, - n12, n23, n34, n41, n56, n67, - n78, n85, n15, n26, n37, n48, id); + n12, n23, n34, n41, n56, n67, + n78, n85, n15, n26, n37, n48, id); else elem = meshDS->AddVolume(n1, n2, n3, n4, n5, n6, n7, n8, - n12, n23, n34, n41, n56, n67, - n78, n85, n15, n26, n37, n48); + n12, n23, n34, n41, n56, n67, + n78, n85, n15, n26, n37, n48); } } if ( mySetElemOnShape && myShapeID > 0 ) @@ -4875,7 +4936,7 @@ void SMESH_MesherHelper::FixQuadraticElements(SMESH_ComputeErrorPtr& compError, gp_XY uv2 = faceHlp.GetNodeUV( face, link->node2(), nodeOnFace, &checkUV ); gp_XY uv12 = faceHlp.GetMiddleUV( surf, uv1, uv2 ); // uvMove = uvm - uv12 - gp_XY uvMove = applyIn2D(surf, uvm, uv12, gp_XY_Subtracted, /*inPeriod=*/false); + gp_XY uvMove = ApplyIn2D(surf, uvm, uv12, gp_XY_Subtracted, /*inPeriod=*/false); ( is1 ? move1 : move0 ).SetCoord( uvMove.X(), uvMove.Y(), 0 ); if ( !is1 ) // correct nodeOnFace for move1 (issue 0020919) nodeOnFace = (*(++chain.rbegin()))->_mediumNode; @@ -4942,7 +5003,7 @@ void SMESH_MesherHelper::FixQuadraticElements(SMESH_ComputeErrorPtr& compError, // compute 3D displacement by 2D one Handle(Geom_Surface) s = BRep_Tool::Surface(face,loc); gp_XY oldUV = faceHlp.GetNodeUV( face, (*link1)->_mediumNode, 0, &checkUV ); - gp_XY newUV = applyIn2D( s, oldUV, gp_XY( move.X(),move.Y()), gp_XY_Added ); + gp_XY newUV = ApplyIn2D( s, oldUV, gp_XY( move.X(),move.Y()), gp_XY_Added ); gp_Pnt newPnt = s->Value( newUV.X(), newUV.Y()); move = gp_Vec( XYZ((*link1)->_mediumNode), newPnt.Transformed(loc) ); if ( SMDS_FacePosition* nPos = @@ -5051,6 +5112,7 @@ void SMESH_MesherHelper::FixQuadraticElements(SMESH_ComputeErrorPtr& compError, if ( i > 3 && nodes[i]->GetPosition()->GetTypeOfPosition() == SMDS_TOP_FACE ) CheckNodeUV( F, nodes[i], uv[ i ], 2*tol, /*force=*/true ); } + AdjustByPeriod( F, uv, 8 ); // put uv[] within a period (IPAL52698) // move the central node gp_XY uvCent = calcTFI (0.5, 0.5, uv[0],uv[1],uv[2],uv[3],uv[4],uv[5],uv[6],uv[7] ); gp_Pnt p = surf->Value( uvCent.X(), uvCent.Y() ).Transformed( loc ); @@ -5076,7 +5138,7 @@ void SMESH_MesherHelper::FixQuadraticElements(SMESH_ComputeErrorPtr& compError, // nodes nodes.assign( tria->begin_nodes(), tria->end_nodes() ); // UV - bool uvOK = true, badTria; + bool uvOK = true, badTria = false; for ( int i = 0; i < 6; ++i ) { uv[ i ] = GetNodeUV( F, nodes[i], nodes[(i+1)%3], &uvOK ); @@ -5085,6 +5147,7 @@ void SMESH_MesherHelper::FixQuadraticElements(SMESH_ComputeErrorPtr& compError, if ( nodes[i]->GetPosition()->GetTypeOfPosition() == SMDS_TOP_FACE ) CheckNodeUV( F, nodes[i], uv[ i ], 2*tol, /*force=*/true ); } + // move the central node gp_Pnt p; if ( !uvOK || badTria ) @@ -5095,6 +5158,7 @@ void SMESH_MesherHelper::FixQuadraticElements(SMESH_ComputeErrorPtr& compError, } else { + AdjustByPeriod( F, uv, 6 ); // put uv[] within a period (IPAL52698) gp_XY uvCent = GetCenterUV( uv[0], uv[1], uv[2], uv[3], uv[4], uv[5], &badTria ); p = surf->Value( uvCent.X(), uvCent.Y() ).Transformed( loc ); } diff --git a/src/SMESH/SMESH_MesherHelper.hxx b/src/SMESH/SMESH_MesherHelper.hxx index 5b2997a25..9b17d6bb9 100644 --- a/src/SMESH/SMESH_MesherHelper.hxx +++ b/src/SMESH/SMESH_MesherHelper.hxx @@ -482,10 +482,10 @@ public: bool * isBadTria=0); /*! * \brief Define a pointer to wrapper over a function of gp_XY class, - * suitable to pass as xyFunPtr to applyIn2D(). + * suitable to pass as xyFunPtr to ApplyIn2D(). * For exaple gp_XY_FunPtr(Added) defines pointer gp_XY_Added to function * calling gp_XY::Added(gp_XY), which is to be used like following - * applyIn2D(surf, uv1, uv2, gp_XY_Added) + * ApplyIn2D(surf, uv1, uv2, gp_XY_Added) */ #define gp_XY_FunPtr(meth) \ static gp_XY __gpXY_##meth (const gp_XY& uv1, const gp_XY& uv2) { return uv1.meth( uv2 ); } \ @@ -496,18 +496,26 @@ public: * It takes into account period of the surface. Use gp_XY_FunPtr macro * to easily define pointer to function of gp_XY class. */ - static gp_XY applyIn2D(const Handle(Geom_Surface)& surface, - const gp_XY& uv1, - const gp_XY& uv2, - xyFunPtr fun, - const bool resultInPeriod=true); - + static gp_XY ApplyIn2D(Handle(Geom_Surface) surface, + const gp_XY& uv1, + const gp_XY& uv2, + xyFunPtr fun, + const bool resultInPeriod=true); + + /*! + * \brief Move node positions on a FACE within surface period + * \param [in] face - the FACE + * \param [inout] uv - node positions to adjust + * \param [in] nbUV - nb of \a uv + */ + void AdjustByPeriod( const TopoDS_Face& face, gp_XY uv[], const int nbUV ); + /*! * \brief Check if inFaceNode argument is necessary for call GetNodeUV(F,..) - * \retval bool - return true if the face is periodic - * - * If F is Null, answer about subshape set through IsQuadraticSubMesh() or - * SetSubShape() + * \retval bool - return true if the face is periodic + * + * If F is Null, answer about subshape set through IsQuadraticSubMesh() or + * SetSubShape() */ bool GetNodeUVneedInFaceNode(const TopoDS_Face& F = TopoDS_Face()) const;