GPUSPHGUI: add FillHole() operation

which is needed for NETGEN 2D remesher
This commit is contained in:
eap 2017-10-17 16:18:05 +03:00
parent 05a257d4f4
commit 54d669640d
9 changed files with 1099 additions and 112 deletions

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@ -751,7 +751,31 @@ module SMESH
* Return point state in a closed 2D mesh in terms of TopAbs_State enumeration.
* TopAbs_UNKNOWN state means that either mesh is wrong or the analysis fails.
*/
short GetPointState(in double x, in double y, in double z)
short GetPointState(in double x, in double y, in double z)
raises (SALOME::SALOME_Exception);
/*!
* Check if a 2D mesh is manifold
*/
boolean IsManifold()
raises (SALOME::SALOME_Exception);
/*!
* Check if orientation of 2D elements is coherent
*/
boolean IsCoherentOrientation2D()
raises (SALOME::SALOME_Exception);
/*!
* Returns all or only closed FreeBorder's.
*/
ListOfFreeBorders FindFreeBorders(in boolean closedOnly)
raises (SALOME::SALOME_Exception);
/*!
* Fill with 2D elements a hole defined by a FreeBorder.
*/
void FillHole(in FreeBorder hole)
raises (SALOME::SALOME_Exception);
/*!

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@ -47,7 +47,7 @@ SET(_link_LIBRARIES
${CAS_TKMesh}
${Boost_LIBRARIES}
SMDS
)
)
# --- headers ---
@ -68,7 +68,7 @@ SET(SMESHUtils_HEADERS
SMESH_MAT2d.hxx
SMESH_ControlPnt.hxx
SMESH_Delaunay.hxx
)
)
# --- sources ---
@ -86,6 +86,7 @@ SET(SMESHUtils_SOURCES
SMESH_ControlPnt.cxx
SMESH_DeMerge.cxx
SMESH_Delaunay.cxx
SMESH_FillHole.cxx
)
# --- rules ---

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@ -0,0 +1,500 @@
// Copyright (C) 2007-2016 CEA/DEN, EDF R&D, OPEN CASCADE
//
// Copyright (C) 2003-2007 OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
// CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 of the License, or (at your option) any later version.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
//
// See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
//
// File : SMESH_FillHole.cxx
// Created : Tue Sep 26 15:11:17 2017
// Author : Edward AGAPOV (eap)
//
#include "SMESH_MeshAlgos.hxx"
#include "SMESH_Comment.hxx"
#include "SMESH_TypeDefs.hxx"
#include "SMDS_Mesh.hxx"
#include <Utils_SALOME_Exception.hxx>
#include <boost/intrusive/circular_list_algorithms.hpp>
#include <boost/container/flat_map.hpp>
#include <Bnd_B3d.hxx>
namespace
{
bool isSmallAngle( double cos2 )
{
// cosine of min angle at which adjacent faces are considered overlapping
const double theMinCos2 = 0.996 * 0.996; // ~5 degrees
return ( cos2 > theMinCos2 );
}
struct BEdge;
typedef std::multimap< double, BEdge* > TAngleMap;
typedef std::map< const SMDS_MeshElement*, int > TFaceIndMap;
//--------------------------------------------------------------------------------
/*!
* \brief Edge of a free border
*/
struct BEdge
{
const SMDS_MeshNode* myNode1;
const SMDS_MeshNode* myNode2;
const SMDS_MeshElement* myFace; // face adjacent to the border
gp_XYZ myFaceNorm;
gp_XYZ myDir; // myNode1 -> myNode2
double myDirCoef; // 1. or -1, to make myDir oriented as myNodes in myFace
double myLength; // between nodes
double myAngleWithPrev; // between myDir and -myPrev->myDir
TAngleMap::iterator myAngleMapPos;
double myOverlapAngle; // angle delta due to overlapping
const SMDS_MeshNode* myNode1Shift; // nodes created to avoid overlapping of faces
const SMDS_MeshNode* myNode2Shift;
BEdge* myPrev; // neighbors in the border
BEdge* myNext;
BEdge(): myNode1Shift(0), myNode2Shift(0) {}
void Init( const SMDS_MeshNode* n1, const SMDS_MeshNode* n2,
const SMDS_MeshElement* f=0,
const SMDS_MeshNode* nf1=0, const SMDS_MeshNode* nf2=0 );
void ComputeAngle( bool reverseAngle = false );
void ShiftOverlapped( const SMDS_MeshNode* oppNode,
const TFaceIndMap& capFaceWithBordInd,
SMDS_Mesh& mesh,
std::vector<const SMDS_MeshElement*>& newFaces);
void MakeShiftfFaces( SMDS_Mesh& mesh,
std::vector<const SMDS_MeshElement*>& newFaces,
const bool isReverse );
gp_XYZ GetInFaceDir() const { return myFaceNorm ^ myDir * myDirCoef; }
void InsertSelf(TAngleMap& edgesByAngle, bool isReverseFaces, bool reBind, bool useOverlap )
{
if ( reBind ) edgesByAngle.erase( myAngleMapPos );
double key = (( isReverseFaces ? 2 * M_PI - myAngleWithPrev : myAngleWithPrev )
+ myOverlapAngle * useOverlap );
myAngleMapPos = edgesByAngle.insert( std::make_pair( key, this ));
}
// traits used by boost::intrusive::circular_list_algorithms
typedef BEdge node;
typedef BEdge * node_ptr;
typedef const BEdge * const_node_ptr;
static node_ptr get_next(const_node_ptr n) { return n->myNext; }
static void set_next(node_ptr n, node_ptr next) { n->myNext = next; }
static node_ptr get_previous(const_node_ptr n) { return n->myPrev; }
static void set_previous(node_ptr n, node_ptr prev){ n->myPrev = prev; }
};
//================================================================================
/*!
* \brief Initialize a border edge data
*/
//================================================================================
void BEdge::Init( const SMDS_MeshNode* n1,
const SMDS_MeshNode* n2,
const SMDS_MeshElement* newFace, // new cap face
const SMDS_MeshNode* nf1,
const SMDS_MeshNode* nf2 )
{
myNode1 = n1;
myNode2 = n2;
myDir = SMESH_NodeXYZ( n2 ) - SMESH_NodeXYZ( n1 );
myLength = myDir.Modulus();
if ( myLength > std::numeric_limits<double>::min() )
myDir /= myLength;
myFace = newFace;
if ( !myFace )
{
TIDSortedElemSet elemSet, avoidSet;
int ind1, ind2;
myFace = SMESH_MeshAlgos::FindFaceInSet( n1, n2, elemSet, avoidSet, &ind1, &ind2 );
if ( !myFace )
throw SALOME_Exception( SMESH_Comment("No face sharing nodes #")
<< myNode1->GetID() << " and #" << myNode2->GetID());
avoidSet.insert( myFace );
if ( SMESH_MeshAlgos::FindFaceInSet( n1, n2, elemSet, avoidSet ))
throw SALOME_Exception( SMESH_Comment("No free border between nodes #")
<< myNode1->GetID() << " and #" << myNode2->GetID());
myDirCoef = SMESH_MeshAlgos::IsRightOrder( myFace, myNode1, myNode2 ) ? 1. : -1.;
}
if (! SMESH_MeshAlgos::FaceNormal( myFace, myFaceNorm, /*normalized=*/false ))
{
SMDS_ElemIteratorPtr fIt = myNode1->GetInverseElementIterator( SMDSAbs_Face );
while ( fIt->more() )
if ( SMESH_MeshAlgos::FaceNormal( fIt->next(), myFaceNorm, /*normalized=*/false ))
break;
}
if ( newFace )
{
myFace = 0;
myDirCoef = SMESH_MeshAlgos::IsRightOrder( newFace, nf1, nf2 ) ? 1. : -1.;
if ( myPrev->myNode2 == n1 )
myNode1Shift = myPrev->myNode2Shift;
if ( myNext->myNode1 == n2 )
myNode2Shift = myNext->myNode1Shift;
}
else if ( myDirCoef * myPrev->myDirCoef < 0 ) // different orientation of faces
{
myFaceNorm *= -1;
myDirCoef *= -1;
}
}
//================================================================================
/*!
* \brief Compute myAngleWithPrev
*/
//================================================================================
void BEdge::ComputeAngle( bool theReverseAngle )
{
myAngleWithPrev = ACos( myDir.Dot( myPrev->myDir.Reversed() ));
bool isObtuse;
gp_XYZ inNewFaceDir = myDir - myPrev->myDir;
double dot1 = myDir.Dot( myPrev->myFaceNorm );
double dot2 = myPrev->myDir.Dot( myFaceNorm );
bool isOverlap1 = ( inNewFaceDir * myPrev->GetInFaceDir() > 0 );
bool isOverlap2 = ( inNewFaceDir * GetInFaceDir() > 0 );
if ( !myPrev->myFace )
isObtuse = isOverlap1;
else if ( !myFace )
isObtuse = isOverlap2;
else
{
isObtuse = ( dot1 > 0 || dot2 < 0 ); // suppose face normals point outside the border
if ( theReverseAngle )
isObtuse = !isObtuse;
}
if ( isObtuse )
{
myAngleWithPrev = 2 * M_PI - myAngleWithPrev;
}
// if ( ! isObtuse )
// isObtuse =
// isSmallAngle( 1 - myDir.CrossSquareMagnitude( myPrev->myDir )); // edges co-directed
myOverlapAngle = 0;
//if ( !isObtuse )
{
// check if myFace and a triangle built on this and prev edges overlap
if ( isOverlap1 )
{
double cos2 = dot1 * dot1 / myPrev->myFaceNorm.SquareModulus();
myOverlapAngle += 0.5 * M_PI * ( 1 - cos2 );
}
if ( isOverlap2 )
{
double cos2 = dot2 * dot2 / myFaceNorm.SquareModulus();
myOverlapAngle += 0.5 * M_PI * ( 1 - cos2 );
}
}
}
//================================================================================
/*!
* \brief Check if myFace is overlapped by a triangle formed by myNode's and a
* given node. If so, create shifted nodes to avoid overlapping
*/
//================================================================================
void BEdge::ShiftOverlapped( const SMDS_MeshNode* theOppNode,
const TFaceIndMap& theCapFaceWithBordInd,
SMDS_Mesh& theMesh,
std::vector<const SMDS_MeshElement*>& theNewFaces )
{
if ( myNode1Shift && myNode2Shift )
return;
gp_XYZ inNewFaceDir = SMESH_NodeXYZ( theOppNode ) - SMESH_NodeXYZ( myNode1 );
double dot = inNewFaceDir.Dot( myFaceNorm );
double cos2 = dot * dot / myFaceNorm.SquareModulus() / inNewFaceDir.SquareModulus();
bool isOverlap = ( isSmallAngle( 1 - cos2 ) && GetInFaceDir() * inNewFaceDir > 0 );
if ( isOverlap )
{
gp_XYZ shift = myFaceNorm / myLength / 4;
if ( myFace )
shift.Reverse();
if ( !myNode1Shift )
{
gp_XYZ p = SMESH_NodeXYZ( myNode1 ) + shift;
myNode1Shift = theMesh.AddNode( p.X(), p.Y(), p.Z() );
myPrev->myNode2Shift = myNode1Shift;
}
if ( !myNode2Shift )
{
gp_XYZ p = SMESH_NodeXYZ( myNode2 ) + shift;
myNode2Shift = theMesh.AddNode( p.X(), p.Y(), p.Z() );
myNext->myNode1Shift = myNode2Shift;
}
// MakeShiftfFaces() for already created cap faces
for ( int is2nd = 0; is2nd < 2; ++is2nd )
{
const SMDS_MeshNode* ns = is2nd ? myNode2Shift : myNode1Shift;
const SMDS_MeshNode* n = is2nd ? myNode2 : myNode1;
if ( !ns ) continue;
SMDS_ElemIteratorPtr fIt = n->GetInverseElementIterator( SMDSAbs_Face );
while ( fIt->more() )
{
const SMDS_MeshElement* f = fIt->next();
if ( !f->isMarked() ) continue;
TFaceIndMap::const_iterator f2i = theCapFaceWithBordInd.find( f );
if ( f2i == theCapFaceWithBordInd.end() )
continue;
const SMDS_MeshNode* nf1 = f->GetNode( f2i->second );
const SMDS_MeshNode* nf2 = f->GetNode(( f2i->second+1 ) % f->NbNodes() );
if ( nf1 == n || nf2 == n )
{
BEdge tmpE;
tmpE.myPrev = tmpE.myNext = this;
tmpE.Init( nf1, nf2, f, nf1, nf2 );
if ( !tmpE.myNode1Shift && !tmpE.myNode2Shift )
tmpE.Init( nf2, nf1, f, nf2, nf1 );
tmpE.myFace = f;
tmpE.MakeShiftfFaces( theMesh, theNewFaces, tmpE.myDirCoef < 0 );
}
std::vector< const SMDS_MeshNode* > nodes( f->begin_nodes(), f->end_nodes() );
nodes[ f->GetNodeIndex( n ) ] = ns;
theMesh.ChangeElementNodes( f, &nodes[0], nodes.size() );
}
}
}
}
//================================================================================
/*!
* \brief Create a triangle
*/
//================================================================================
const SMDS_MeshElement* MakeTria( SMDS_Mesh& mesh,
const SMDS_MeshNode* n1,
const SMDS_MeshNode* n2,
const SMDS_MeshNode* n3,
const bool isReverse )
{
if ( isReverse )
return mesh.AddFace( n1, n3, n2 );
return mesh.AddFace( n1, n2, n3 );
}
//================================================================================
/*!
* \brief Create a quadrangle
*/
//================================================================================
// const SMDS_MeshElement* MakeQuad( SMDS_Mesh& mesh,
// const SMDS_MeshNode* n1,
// const SMDS_MeshNode* n2,
// const SMDS_MeshNode* n3,
// const SMDS_MeshNode* n4,
// const bool isReverse )
// {
// if ( isReverse )
// return mesh.AddFace( n4, n3, n2, n1 );
// return mesh.AddFace( n1, n2, n3, n4 );
// }
//================================================================================
/*!
* \brief Create faces on myNode* and myNode*Shift
*/
//================================================================================
void BEdge::MakeShiftfFaces(SMDS_Mesh& mesh,
std::vector<const SMDS_MeshElement*>& newFaces,
const bool isReverse )
{
if ( !myFace )
return;
if ( myNode1Shift && myNode2Shift )
{
newFaces.push_back( MakeTria( mesh, myNode1, myNode2, myNode2Shift, isReverse ));
newFaces.push_back( MakeTria( mesh, myNode1, myNode2Shift, myNode1Shift, isReverse ));
}
else if ( myNode1Shift )
{
newFaces.push_back( MakeTria( mesh, myNode1, myNode2, myNode1Shift, isReverse ));
}
else if ( myNode2Shift )
{
newFaces.push_back( MakeTria( mesh, myNode1, myNode2, myNode2Shift, isReverse ));
}
}
} // namespace
//================================================================================
/*!
* \brief Fill with 2D elements a hole defined by a TFreeBorder
*/
//================================================================================
void SMESH_MeshAlgos::FillHole(const SMESH_MeshAlgos::TFreeBorder & theFreeBorder,
SMDS_Mesh& theMesh,
std::vector<const SMDS_MeshElement*>& theNewFaces)
{
if ( theFreeBorder.size() < 4 || // at least 3 nodes
theFreeBorder[0] != theFreeBorder.back() ) // the hole must be closed
return;
// prepare data of the border
ObjectPool< BEdge > edgeAllocator;
boost::intrusive::circular_list_algorithms< BEdge > circularList;
BEdge* edge;
BEdge* edge0 = edgeAllocator.getNew();
BEdge* edgePrev = edge0;
circularList.init_header( edge0 );
edge0->Init( theFreeBorder[0], theFreeBorder[1], 0 );
Bnd_B3d box;
box.Add( SMESH_NodeXYZ( edge0->myNode1 ));
for ( size_t i = 2; i < theFreeBorder.size(); ++i )
{
edge = edgeAllocator.getNew();
circularList.link_after( edgePrev, edge );
edge->Init( theFreeBorder[i-1], theFreeBorder[i] );
edge->ComputeAngle();
edgePrev = edge;
box.Add( SMESH_NodeXYZ( edge->myNode1 ));
}
edge0->ComputeAngle();
// check if face normals point outside the border
gp_XYZ hSize = 0.5 * ( box.CornerMax() - box.CornerMin() );
const double hDelta = 1e-6 * hSize.Modulus();
hSize -= gp_XYZ( hDelta, hDelta, hDelta );
if ( hSize.X() < 0 ) hSize.SetX(hDelta);
if ( hSize.Y() < 0 ) hSize.SetY(hDelta);
if ( hSize.Z() < 0 ) hSize.SetZ(hDelta);
box.SetHSize( hSize ); // decrease the box by hDelta
size_t nbEdges = theFreeBorder.size() - 1;
edge = edge0;
int nbRev = 0, nbFrw = 0;
double angTol = M_PI - ( nbEdges - 2 ) * M_PI / nbEdges, sumDirCoeff = 0;
for ( size_t i = 0; i < nbEdges; ++i, edge = edge->myNext )
{
if ( box.IsOut( SMESH_NodeXYZ( edge->myNode1 )) &&
edge->myOverlapAngle < 0.1 * M_PI )
{
nbRev += edge->myAngleWithPrev > M_PI + angTol;
nbFrw += edge->myAngleWithPrev < M_PI - angTol;
}
sumDirCoeff += edge->myDirCoef;
// unmark all adjacent faces, new faces will be marked
SMDS_ElemIteratorPtr fIt = edge->myNode1->GetInverseElementIterator( SMDSAbs_Face );
while ( fIt->more() )
fIt->next()->setIsMarked( false );
}
bool isReverseAngle = ( nbRev > nbFrw ); // true == face normals point inside the border
//std::cout << "nbRev="<< nbRev << ", nbFrw="<< nbFrw<<std::endl;
// sort border edges by myAngleWithPrev
TAngleMap edgesByAngle;
bool useOverlap = true; // to add BEdge.myOverlapAngle when filling edgesByAngle
edge = edge0;
for ( size_t i = 0; i < nbEdges; ++i, edge = edge->myNext )
edge->InsertSelf( edgesByAngle, isReverseAngle, /*reBind=*/false, useOverlap );
// create triangles to fill the hole
//compare order of nodes in the edges with their order in faces
bool isReverse = sumDirCoeff > 0.5 * nbEdges;
// faces filling the hole (cap faces) and indices of border edges in them
TFaceIndMap capFaceWithBordInd;
theNewFaces.reserve( nbEdges - 2 );
std::vector< const SMDS_MeshNode* > nodes(3);
while ( edgesByAngle.size() > 2 )
{
TAngleMap::iterator a2e = edgesByAngle.begin();
if ( useOverlap && a2e->first > M_PI - angTol ) // all new triangles need shift
{
// re-sort the edges
useOverlap = false;
edge = a2e->second;
nbEdges = edgesByAngle.size();
edgesByAngle.clear();
for ( size_t i = 0; i < nbEdges; ++i, edge = edge->myNext )
edge->InsertSelf( edgesByAngle, isReverseAngle, /*reBind=*/false, useOverlap );
a2e = edgesByAngle.begin();
}
edge = a2e->second;
edgePrev = edge->myPrev;
// create shift nodes and faces
edgePrev->ShiftOverlapped( edge->myNode2, capFaceWithBordInd, theMesh, theNewFaces );
edge->ShiftOverlapped( edgePrev->myNode1, capFaceWithBordInd, theMesh, theNewFaces );
edge ->MakeShiftfFaces( theMesh, theNewFaces, isReverse );
edgePrev->MakeShiftfFaces( theMesh, theNewFaces, isReverse );
// make a cap face
//nodes.resize( 3 );
nodes[0] = edgePrev->myNode1Shift ? edgePrev->myNode1Shift : edgePrev->myNode1;
nodes[1] = edgePrev->myNode2Shift ? edgePrev->myNode2Shift : edgePrev->myNode2;
nodes[2] = edge->myNode2Shift ? edge->myNode2Shift : edge->myNode2;
theNewFaces.push_back( MakeTria( theMesh, nodes[0], nodes[1], nodes[2], isReverse ));
// std::cout << nodes[1]->GetID() << " " << nodes[0]->GetID() << " " << nodes[2]->GetID()
// << " " << edge->myAngleWithPrev << std::endl;
// remember a border edge within the new cap face
theNewFaces.back()->setIsMarked( true );
if ( edgePrev->myFace )
capFaceWithBordInd.insert( std::make_pair( theNewFaces.back(), isReverse ? 2 : 0 ));
if ( edge->myFace )
capFaceWithBordInd.insert( std::make_pair( theNewFaces.back(), 1 ));
// remove edgePrev from the list and update <edge>
edgesByAngle.erase( edgePrev->myAngleMapPos );
circularList.unlink( edgePrev ); // remove edgePrev from the border
edge->Init( edgePrev->myNode1, edge->myNode2, theNewFaces.back(), nodes[0], nodes[2] );
edge->ComputeAngle( isReverseAngle );
edge->InsertSelf( edgesByAngle, /*isReverse=*/false, /*reBind=*/true, useOverlap );
edge->myNext->ComputeAngle( isReverseAngle );
edge->myNext->InsertSelf( edgesByAngle, /*isReverse=*/false, /*reBind=*/true, useOverlap );
// std::cout << "A " << edge->myNode1->GetID() << " " << edge->myAngleWithPrev
// << " " << edge->myNext->myNode1->GetID() << " " << edge->myNext->myAngleWithPrev
// << std::endl;
}
edge = edgesByAngle.begin()->second;
edge-> MakeShiftfFaces( theMesh, theNewFaces, isReverse );
edge->myNext->MakeShiftfFaces( theMesh, theNewFaces, isReverse );
}

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@ -131,8 +131,11 @@ namespace
if ( myID < 0 )
{
myID = id;
if ( myNext )
myNext->SetID( id + 1 );
for ( BEdge* be = myNext; be && be->myID < 0; be = be->myNext )
{
be->myID = ++id;
}
}
}
//================================================================================
@ -821,3 +824,136 @@ void SMESH_MeshAlgos::FindCoincidentFreeBorders(SMDS_Mesh& mesh,
} // SMESH_MeshAlgos::FindCoincidentFreeBorders()
//================================================================================
/*
* Returns all TFreeBorder's. Optionally check if the mesh is manifold
* and if faces are correctly oriented.
*/
//================================================================================
void SMESH_MeshAlgos::FindFreeBorders(SMDS_Mesh& theMesh,
TFreeBorderVec & theFoundFreeBordes,
const bool theClosedOnly,
bool* theIsManifold,
bool* theIsGoodOri)
{
bool isManifold = true;
// find free links
typedef NCollection_DataMap<SMESH_TLink, const SMDS_MeshElement*, SMESH_TLink > TLink2FaceMap;
TLink2FaceMap linkMap;
int nbSharedLinks = 0;
SMDS_FaceIteratorPtr faceIt = theMesh.facesIterator();
while ( faceIt->more() )
{
const SMDS_MeshElement* face = faceIt->next();
if ( !face ) continue;
const SMDS_MeshNode* n0 = face->GetNode( face->NbNodes() - 1 );
SMDS_NodeIteratorPtr nodeIt = face->interlacedNodesIterator();
while ( nodeIt->more() )
{
const SMDS_MeshNode* n1 = nodeIt->next();
SMESH_TLink link( n0, n1 );
if ( const SMDS_MeshElement** faceInMap = linkMap.ChangeSeek( link ))
{
if ( *faceInMap )
{
if ( theIsGoodOri && *theIsGoodOri && !IsRightOrder( *faceInMap, n1, n0 ))
*theIsGoodOri = false;
}
else
{
isManifold = false;
}
nbSharedLinks += bool( *faceInMap );
*faceInMap = 0;
}
else
{
linkMap.Bind( link, face );
}
n0 = n1;
}
}
if ( theIsManifold )
*theIsManifold = isManifold;
if ( linkMap.Extent() == nbSharedLinks )
return;
// form free borders
std::set < BNode > bNodes;
std::vector< BEdge > bEdges( linkMap.Extent() - nbSharedLinks );
TLink2FaceMap::Iterator linkIt( linkMap );
for ( int iEdge = 0; linkIt.More(); linkIt.Next() )
{
if ( !linkIt.Value() ) continue;
const SMESH_TLink & link = linkIt.Key();
std::set< BNode >::iterator n1 = bNodes.insert( BNode( link.node1() )).first;
std::set< BNode >::iterator n2 = bNodes.insert( BNode( link.node2() )).first;
bEdges[ iEdge ].Set( &*n1, &*n2, linkIt.Value(), iEdge+1 );
n1->AddLinked( & bEdges[ iEdge ] );
n2->AddLinked( & bEdges[ iEdge ] );
++iEdge;
}
linkMap.Clear();
// assign IDs to borders
std::vector< BEdge* > borders; // 1st of connected (via myPrev and myNext) edges
std::set< BNode >::iterator bn = bNodes.begin();
for ( ; bn != bNodes.end(); ++bn )
{
for ( size_t i = 0; i < bn->myLinkedEdges.size(); ++i )
{
if ( bn->myLinkedEdges[i]->myBorderID < 0 )
{
BEdge* be = bn->myLinkedEdges[i];
int borderID = borders.size();
borders.push_back( be );
for ( ; be && be->myBorderID < 0; be = be->myNext )
{
be->myBorderID = borderID;
be->Orient();
}
bool isClosed = ( be == bn->myLinkedEdges[i] );
if ( !isClosed && theClosedOnly )
{
borders.pop_back();
continue;
}
be = bn->myLinkedEdges[i]->myPrev;
for ( ; be && be->myBorderID < 0; be = be->myPrev )
{
be->myBorderID = borderID;
be->Orient();
}
if ( !isClosed )
while ( borders.back()->myPrev )
borders.back() = borders.back()->myPrev;
}
}
}
theFoundFreeBordes.resize( borders.size() );
for ( size_t i = 0; i < borders.size(); ++i )
{
TFreeBorder & bordNodes = theFoundFreeBordes[ i ];
BEdge* be = borders[i];
size_t cnt = 1;
for ( be = be->myNext; be && be != borders[i]; be = be->myNext )
++cnt;
bordNodes.resize( cnt + 1 );
BEdge* beLast;
for ( be = borders[i], cnt = 0;
be && cnt < bordNodes.size()-1;
be = be->myNext, ++cnt )
{
bordNodes[ cnt ] = be->myBNode1->Node();
beLast = be;
}
bordNodes.back() = beLast->myBNode2->Node();
}
}

View File

@ -35,6 +35,8 @@
#include "SMDS_VolumeTool.hxx"
#include "SMESH_OctreeNode.hxx"
#include <Utils_SALOME_Exception.hxx>
#include <GC_MakeSegment.hxx>
#include <GeomAPI_ExtremaCurveCurve.hxx>
#include <Geom_Line.hxx>
@ -228,12 +230,12 @@ namespace // Utils used in SMESH_ElementSearcherImpl::FindElementsByPoint()
SMDSAbs_ElementType elemType,
SMDS_ElemIteratorPtr theElemIt = SMDS_ElemIteratorPtr(),
double tolerance = NodeRadius );
void prepare(); // !!!call it before calling the following methods!!!
void getElementsNearPoint( const gp_Pnt& point, vector<const SMDS_MeshElement*>& foundElems );
void getElementsNearLine ( const gp_Ax1& line, vector<const SMDS_MeshElement*>& foundElems);
void getElementsInSphere ( const gp_XYZ& center,
const double radius,
vector<const SMDS_MeshElement*>& foundElems);
ElementBndBoxTree* getLeafAtPoint( const gp_XYZ& point );
protected:
ElementBndBoxTree() {}
@ -337,19 +339,6 @@ namespace // Utils used in SMESH_ElementSearcherImpl::FindElementsByPoint()
}
}
//================================================================================
/*!
* \brief Un-mark all elements
*/
//================================================================================
void ElementBndBoxTree::prepare()
{
// TElementBoxPool& elBoPool = getElementBoxPool();
// for ( size_t i = 0; i < elBoPool.nbElements(); ++i )
// const_cast< ElementBox* >( elBoPool[ i ])->_isMarked = false;
}
//================================================================================
/*!
* \brief Return elements which can include the point
@ -471,6 +460,30 @@ namespace // Utils used in SMESH_ElementSearcherImpl::FindElementsByPoint()
}
}
//================================================================================
/*!
* \brief Return a leaf including a point
*/
//================================================================================
ElementBndBoxTree* ElementBndBoxTree::getLeafAtPoint( const gp_XYZ& point )
{
if ( getBox()->IsOut( point ))
return 0;
if ( isLeaf() )
{
return this;
}
else
{
for (int i = 0; i < 8; i++)
if ( ElementBndBoxTree* l = ((ElementBndBoxTree*) myChildren[i])->getLeafAtPoint( point ))
return l;
}
return 0;
}
//================================================================================
/*!
* \brief Construct the element box
@ -539,13 +552,16 @@ struct SMESH_ElementSearcherImpl: public SMESH_ElementSearcher
virtual const SMDS_MeshElement* FindClosestTo( const gp_Pnt& point,
SMDSAbs_ElementType type );
void GetElementsNearLine( const gp_Ax1& line,
SMDSAbs_ElementType type,
vector< const SMDS_MeshElement* >& foundElems);
void GetElementsInSphere( const gp_XYZ& center,
const double radius,
SMDSAbs_ElementType type,
vector< const SMDS_MeshElement* >& foundElems);
virtual void GetElementsNearLine( const gp_Ax1& line,
SMDSAbs_ElementType type,
vector< const SMDS_MeshElement* >& foundElems);
virtual void GetElementsInSphere( const gp_XYZ& center,
const double radius,
SMDSAbs_ElementType type,
vector< const SMDS_MeshElement* >& foundElems);
virtual gp_XYZ Project(const gp_Pnt& point,
SMDSAbs_ElementType type,
const SMDS_MeshElement** closestElem);
double getTolerance();
bool getIntersParamOnLine(const gp_Lin& line, const SMDS_MeshElement* face,
const double tolerance, double & param);
@ -834,10 +850,6 @@ FindElementsByPoint(const gp_Pnt& point,
{
_ebbTree[_elementType] = new ElementBndBoxTree( *_mesh, type, _meshPartIt, tolerance );
}
else
{
_ebbTree[ type ]->prepare();
}
vector< const SMDS_MeshElement* > suspectElems;
_ebbTree[ type ]->getElementsNearPoint( point, suspectElems );
vector< const SMDS_MeshElement* >::iterator elem = suspectElems.begin();
@ -863,13 +875,13 @@ SMESH_ElementSearcherImpl::FindClosestTo( const gp_Pnt& point,
const SMDS_MeshElement* closestElem = 0;
_elementType = type;
if ( type == SMDSAbs_Face || type == SMDSAbs_Volume )
if ( type == SMDSAbs_Face ||
type == SMDSAbs_Volume ||
type == SMDSAbs_Edge )
{
ElementBndBoxTree*& ebbTree = _ebbTree[ type ];
if ( !ebbTree )
ebbTree = new ElementBndBoxTree( *_mesh, type, _meshPartIt );
else
ebbTree->prepare();
vector<const SMDS_MeshElement*> suspectElems;
ebbTree->getElementsNearPoint( point, suspectElems );
@ -885,7 +897,6 @@ SMESH_ElementSearcherImpl::FindClosestTo( const gp_Pnt& point,
radius = ebbTree->maxSize() / pow( 2., getTreeHeight()) / 2;
while ( suspectElems.empty() )
{
ebbTree->prepare();
ebbTree->getElementsInSphere( point.XYZ(), radius, suspectElems );
radius *= 1.1;
}
@ -956,8 +967,6 @@ TopAbs_State SMESH_ElementSearcherImpl::GetPointState(const gp_Pnt& point)
ElementBndBoxTree*& ebbTree = _ebbTree[ SMDSAbs_Face ];
if ( !ebbTree )
ebbTree = new ElementBndBoxTree( *_mesh, _elementType, _meshPartIt );
else
ebbTree->prepare();
// Algo: analyse transition of a line starting at the point through mesh boundary;
// try three lines parallel to axis of the coordinate system and perform rough
@ -974,7 +983,6 @@ TopAbs_State SMESH_ElementSearcherImpl::GetPointState(const gp_Pnt& point)
gp_Lin line ( lineAxis );
vector<const SMDS_MeshElement*> suspectFaces; // faces possibly intersecting the line
if ( axis > 0 ) ebbTree->prepare();
ebbTree->getElementsNearLine( lineAxis, suspectFaces );
// Intersect faces with the line
@ -1187,8 +1195,6 @@ void SMESH_ElementSearcherImpl::GetElementsNearLine( const gp_Ax1&
ElementBndBoxTree*& ebbTree = _ebbTree[ type ];
if ( !ebbTree )
ebbTree = new ElementBndBoxTree( *_mesh, _elementType, _meshPartIt );
else
ebbTree->prepare();
ebbTree->getElementsNearLine( line, foundElems );
}
@ -1208,12 +1214,59 @@ void SMESH_ElementSearcherImpl::GetElementsInSphere( const gp_XYZ&
ElementBndBoxTree*& ebbTree = _ebbTree[ type ];
if ( !ebbTree )
ebbTree = new ElementBndBoxTree( *_mesh, _elementType, _meshPartIt );
else
ebbTree->prepare();
ebbTree->getElementsInSphere( center, radius, foundElems );
}
//=======================================================================
/*
* \brief Return a projection of a given point to a mesh.
* Optionally return the closest element
*/
//=======================================================================
gp_XYZ SMESH_ElementSearcherImpl::Project(const gp_Pnt& point,
SMDSAbs_ElementType type,
const SMDS_MeshElement** closestElem)
{
_elementType = type;
if ( _mesh->GetMeshInfo().NbElements( _elementType ) == 0 )
throw SALOME_Exception( LOCALIZED( "No elements of given type in the mesh" ));
ElementBndBoxTree*& ebbTree = _ebbTree[ _elementType ];
if ( !ebbTree )
ebbTree = new ElementBndBoxTree( *_mesh, _elementType );
gp_XYZ p = point.XYZ();
ElementBndBoxTree* ebbLeaf = ebbTree->getLeafAtPoint( p );
const Bnd_B3d* box = ebbLeaf->getBox();
double radius = ( box->CornerMax() - box->CornerMin() ).Modulus();
vector< const SMDS_MeshElement* > elems;
ebbTree->getElementsInSphere( p, radius, elems );
while ( elems.empty() )
{
radius *= 1.5;
ebbTree->getElementsInSphere( p, radius, elems );
}
gp_XYZ proj, bestProj;
const SMDS_MeshElement* elem = 0;
double minDist = 2 * radius;
for ( size_t i = 0; i < elems.size(); ++i )
{
double d = SMESH_MeshAlgos::GetDistance( elems[i], p, &proj );
if ( d < minDist )
{
bestProj = proj;
elem = elems[i];
minDist = d;
}
}
if ( closestElem ) *closestElem = elem;
return bestProj;
}
//=======================================================================
/*!
* \brief Return true if the point is IN or ON of the element
@ -1461,17 +1514,19 @@ namespace
//=======================================================================
double SMESH_MeshAlgos::GetDistance( const SMDS_MeshElement* elem,
const gp_Pnt& point )
const gp_Pnt& point,
gp_XYZ* closestPnt )
{
switch ( elem->GetType() )
{
case SMDSAbs_Volume:
return GetDistance( dynamic_cast<const SMDS_MeshVolume*>( elem ), point);
return GetDistance( dynamic_cast<const SMDS_MeshVolume*>( elem ), point, closestPnt );
case SMDSAbs_Face:
return GetDistance( dynamic_cast<const SMDS_MeshFace*>( elem ), point);
return GetDistance( dynamic_cast<const SMDS_MeshFace*>( elem ), point, closestPnt );
case SMDSAbs_Edge:
return GetDistance( dynamic_cast<const SMDS_MeshEdge*>( elem ), point);
return GetDistance( dynamic_cast<const SMDS_MeshEdge*>( elem ), point, closestPnt );
case SMDSAbs_Node:
if ( closestPnt ) *closestPnt = SMESH_TNodeXYZ( elem );
return point.Distance( SMESH_TNodeXYZ( elem ));
default:;
}
@ -1487,9 +1542,10 @@ double SMESH_MeshAlgos::GetDistance( const SMDS_MeshElement* elem,
//=======================================================================
double SMESH_MeshAlgos::GetDistance( const SMDS_MeshFace* face,
const gp_Pnt& point )
const gp_Pnt& point,
gp_XYZ* closestPnt )
{
double badDistance = -1;
const double badDistance = -1;
if ( !face ) return badDistance;
// coordinates of nodes (medium nodes, if any, ignored)
@ -1533,7 +1589,7 @@ double SMESH_MeshAlgos::GetDistance( const SMDS_MeshFace* face,
trsf.Transforms( tmpPnt );
gp_XY point2D( tmpPnt.X(), tmpPnt.Z() );
// loop on segments of the face to analyze point position ralative to the face
// loop on edges of the face to analyze point position ralative to the face
set< PointPos > pntPosSet;
for ( size_t i = 1; i < xy.size(); ++i )
{
@ -1543,31 +1599,40 @@ double SMESH_MeshAlgos::GetDistance( const SMDS_MeshFace* face,
// compute distance
PointPos pos = *pntPosSet.begin();
// cout << "Face " << face->GetID() << " DIST: ";
switch ( pos._name )
{
case POS_LEFT: {
// point is most close to a segment
gp_Vec p0p1( point, xyz[ pos._index ] );
gp_Vec p1p2( xyz[ pos._index ], xyz[ pos._index+1 ]); // segment vector
p1p2.Normalize();
double projDist = p0p1 * p1p2; // distance projected to the segment
gp_Vec projVec = p1p2 * projDist;
gp_Vec distVec = p0p1 - projVec;
// cout << distVec.Magnitude() << ", SEG " << face->GetNode(pos._index)->GetID()
// << " - " << face->GetNodeWrap(pos._index+1)->GetID() << endl;
return distVec.Magnitude();
case POS_LEFT:
{
// point is most close to an edge
gp_Vec edge( xyz[ pos._index ], xyz[ pos._index+1 ]);
gp_Vec n1p ( xyz[ pos._index ], point );
double u = ( edge * n1p ) / edge.SquareMagnitude(); // param [0,1] on the edge
// projection of the point on the edge
gp_XYZ proj = ( 1. - u ) * xyz[ pos._index ] + u * xyz[ pos._index+1 ];
if ( closestPnt ) *closestPnt = proj;
return point.Distance( proj );
}
case POS_RIGHT: {
case POS_RIGHT:
{
// point is inside the face
double distToFacePlane = tmpPnt.Y();
// cout << distToFacePlane << ", INSIDE " << endl;
return Abs( distToFacePlane );
double distToFacePlane = Abs( tmpPnt.Y() );
if ( closestPnt )
{
if ( distToFacePlane < std::numeric_limits<double>::min() ) {
*closestPnt = point.XYZ();
}
else {
tmpPnt.SetY( 0 );
trsf.Inverted().Transforms( tmpPnt );
*closestPnt = tmpPnt;
}
}
return distToFacePlane;
}
case POS_VERTEX: {
case POS_VERTEX:
{
// point is most close to a node
gp_Vec distVec( point, xyz[ pos._index ]);
// cout << distVec.Magnitude() << " VERTEX " << face->GetNode(pos._index)->GetID() << endl;
return distVec.Magnitude();
}
default:;
@ -1581,7 +1646,9 @@ double SMESH_MeshAlgos::GetDistance( const SMDS_MeshFace* face,
*/
//=======================================================================
double SMESH_MeshAlgos::GetDistance( const SMDS_MeshEdge* seg, const gp_Pnt& point )
double SMESH_MeshAlgos::GetDistance( const SMDS_MeshEdge* seg,
const gp_Pnt& point,
gp_XYZ* closestPnt )
{
double dist = Precision::Infinite();
if ( !seg ) return dist;
@ -1597,16 +1664,25 @@ double SMESH_MeshAlgos::GetDistance( const SMDS_MeshEdge* seg, const gp_Pnt& poi
{
gp_Vec edge( xyz[i-1], xyz[i] );
gp_Vec n1p ( xyz[i-1], point );
double u = ( edge * n1p ) / edge.SquareMagnitude(); // param [0,1] on the edge
double d, u = ( edge * n1p ) / edge.SquareMagnitude(); // param [0,1] on the edge
if ( u <= 0. ) {
dist = Min( dist, n1p.SquareMagnitude() );
if (( d = n1p.SquareMagnitude() ) < dist ) {
dist = d;
if ( closestPnt ) *closestPnt = xyz[i-1];
}
}
else if ( u >= 1. ) {
dist = Min( dist, point.SquareDistance( xyz[i] ));
if (( d = point.SquareDistance( xyz[i] )) < dist ) {
dist = d;
if ( closestPnt ) *closestPnt = xyz[i];
}
}
else {
gp_XYZ proj = ( 1. - u ) * xyz[i-1] + u * xyz[i]; // projection of the point on the edge
dist = Min( dist, point.SquareDistance( proj ));
gp_XYZ proj = xyz[i-1] + u * edge.XYZ(); // projection of the point on the edge
if (( d = point.SquareDistance( proj )) < dist ) {
dist = d;
if ( closestPnt ) *closestPnt = proj;
}
}
}
return Sqrt( dist );
@ -1620,7 +1696,9 @@ double SMESH_MeshAlgos::GetDistance( const SMDS_MeshEdge* seg, const gp_Pnt& poi
*/
//=======================================================================
double SMESH_MeshAlgos::GetDistance( const SMDS_MeshVolume* volume, const gp_Pnt& point )
double SMESH_MeshAlgos::GetDistance( const SMDS_MeshVolume* volume,
const gp_Pnt& point,
gp_XYZ* closestPnt )
{
SMDS_VolumeTool vTool( volume );
vTool.SetExternalNormal();
@ -1628,6 +1706,8 @@ double SMESH_MeshAlgos::GetDistance( const SMDS_MeshVolume* volume, const gp_Pnt
double n[3], bc[3];
double minDist = 1e100, dist;
gp_XYZ closeP = point.XYZ();
bool isOut = false;
for ( int iF = 0; iF < vTool.NbFaces(); ++iF )
{
// skip a facet with normal not "looking at" the point
@ -1644,23 +1724,34 @@ double SMESH_MeshAlgos::GetDistance( const SMDS_MeshVolume* volume, const gp_Pnt
case 3:
{
SMDS_FaceOfNodes tmpFace( nodes[0], nodes[ 1*iQ ], nodes[ 2*iQ ] );
dist = GetDistance( &tmpFace, point );
dist = GetDistance( &tmpFace, point, closestPnt );
break;
}
case 4:
{
SMDS_FaceOfNodes tmpFace( nodes[0], nodes[ 1*iQ ], nodes[ 2*iQ ], nodes[ 3*iQ ]);
dist = GetDistance( &tmpFace, point );
dist = GetDistance( &tmpFace, point, closestPnt );
break;
}
default:
vector<const SMDS_MeshNode *> nvec( nodes, nodes + vTool.NbFaceNodes( iF ));
SMDS_PolygonalFaceOfNodes tmpFace( nvec );
dist = GetDistance( &tmpFace, point );
dist = GetDistance( &tmpFace, point, closestPnt );
}
if ( dist < minDist )
{
minDist = dist;
isOut = true;
if ( closestPnt ) closeP = *closestPnt;
}
minDist = Min( minDist, dist );
}
return minDist;
if ( isOut )
{
if ( closestPnt ) *closestPnt = closeP;
return minDist;
}
return 0; // point is inside the volume
}
//================================================================================
@ -1804,6 +1895,34 @@ vector< const SMDS_MeshNode*> SMESH_MeshAlgos::GetCommonNodes(const SMDS_MeshEle
common.push_back( e1->GetNode( i ));
return common;
}
//================================================================================
/*!
* \brief Return true if node1 encounters first in the face and node2, after
*/
//================================================================================
bool SMESH_MeshAlgos::IsRightOrder( const SMDS_MeshElement* face,
const SMDS_MeshNode* node0,
const SMDS_MeshNode* node1 )
{
int i0 = face->GetNodeIndex( node0 );
int i1 = face->GetNodeIndex( node1 );
if ( face->IsQuadratic() )
{
if ( face->IsMediumNode( node0 ))
{
i0 -= ( face->NbNodes()/2 - 1 );
i1 *= 2;
}
else
{
i1 -= ( face->NbNodes()/2 - 1 );
i0 *= 2;
}
}
int diff = i1 - i0;
return ( diff == 1 ) || ( diff == -face->NbNodes()+1 );
}
//=======================================================================
/*!

View File

@ -100,6 +100,15 @@ struct SMESHUtils_EXPORT SMESH_ElementSearcher
* \brief Find out if the given point is out of closed 2D mesh.
*/
virtual TopAbs_State GetPointState(const gp_Pnt& point) = 0;
/*!
* \brief Return a projection of a given point to a 2D mesh.
* Optionally return the closest face
*/
virtual gp_XYZ Project(const gp_Pnt& point,
SMDSAbs_ElementType type,
const SMDS_MeshElement** closestFace= 0) = 0;
virtual ~SMESH_ElementSearcher();
};
@ -112,16 +121,16 @@ namespace SMESH_MeshAlgos
bool IsOut( const SMDS_MeshElement* element, const gp_Pnt& point, double tol );
SMESHUtils_EXPORT
double GetDistance( const SMDS_MeshElement* elem, const gp_Pnt& point );
double GetDistance( const SMDS_MeshElement* elem, const gp_Pnt& point, gp_XYZ* closestPnt = 0 );
SMESHUtils_EXPORT
double GetDistance( const SMDS_MeshEdge* edge, const gp_Pnt& point );
double GetDistance( const SMDS_MeshEdge* edge, const gp_Pnt& point, gp_XYZ* closestPnt = 0 );
SMESHUtils_EXPORT
double GetDistance( const SMDS_MeshFace* face, const gp_Pnt& point );
double GetDistance( const SMDS_MeshFace* face, const gp_Pnt& point, gp_XYZ* closestPnt = 0 );
SMESHUtils_EXPORT
double GetDistance( const SMDS_MeshVolume* volume, const gp_Pnt& point );
double GetDistance( const SMDS_MeshVolume* volume, const gp_Pnt& point, gp_XYZ* closestPnt = 0 );
SMESHUtils_EXPORT
void GetBarycentricCoords( const gp_XY& point,
@ -153,6 +162,14 @@ namespace SMESH_MeshAlgos
SMESHUtils_EXPORT
std::vector< const SMDS_MeshNode*> GetCommonNodes(const SMDS_MeshElement* e1,
const SMDS_MeshElement* e2);
/*!
* \brief Return true if node1 encounters first in the face and node2, after.
* The nodes are supposed to be neighbor nodes in the face.
*/
SMESHUtils_EXPORT
bool IsRightOrder( const SMDS_MeshElement* face,
const SMDS_MeshNode* node0,
const SMDS_MeshNode* node1 );
/*!
* \brief Return SMESH_NodeSearcher. The caller is responsible for deleteing it
@ -204,7 +221,28 @@ namespace SMESH_MeshAlgos
void FindCoincidentFreeBorders(SMDS_Mesh& mesh,
double tolerance,
CoincidentFreeBorders & foundFreeBordes);
/*!
* Returns all or only closed TFreeBorder's.
* Optionally check if the mesh is manifold and if faces are correctly oriented.
*
* (Implemented in ./SMESH_FreeBorders.cxx)
*/
SMESHUtils_EXPORT
void FindFreeBorders(SMDS_Mesh& mesh,
TFreeBorderVec & foundFreeBordes,
const bool closedOnly,
bool* isManifold = 0,
bool* isGoodOri = 0);
/*!
* Fill a hole defined by a TFreeBorder with 2D elements.
*
* (Implemented in ./SMESH_FillHole.cxx)
*/
SMESHUtils_EXPORT
void FillHole(const TFreeBorder & freeBorder,
SMDS_Mesh& mesh,
std::vector<const SMDS_MeshElement*>& newFaces);
/*!
* \brief Find nodes whose merge makes the element invalid

View File

@ -2430,7 +2430,7 @@ void _pyMeshEditor::Process( const Handle(_pyCommand)& theCommand)
"ExtrusionAlongPathX","ExtrusionAlongPathObject1D","ExtrusionAlongPathObject2D",
"ExtrusionSweepObjects","RotationSweepObjects","ExtrusionAlongPathObjects",
"Mirror","MirrorObject","Translate","TranslateObject","Rotate","RotateObject",
"FindCoincidentNodes","MergeNodes","FindEqualElements",
"FindCoincidentNodes","MergeNodes","FindEqualElements","FillHole",
"MergeElements","MergeEqualElements","SewFreeBorders","SewConformFreeBorders",
"FindCoincidentFreeBorders", "SewCoincidentFreeBorders",
"SewBorderToSide","SewSideElements","ChangeElemNodes","GetLastCreatedNodes",

View File

@ -4006,7 +4006,7 @@ SMESH_MeshEditor_i::ScaleMakeMesh(SMESH::SMESH_IDSource_ptr theObject,
// and then "GetGroups" using SMESH_Mesh::GetGroups()
TPythonDump pydump; // to prevent dump at mesh creation
mesh = makeMesh( theMeshName );
mesh = makeMesh( theMeshName );
mesh_i = SMESH::DownCast<SMESH_Mesh_i*>( mesh );
if ( mesh_i )
@ -4593,6 +4593,151 @@ CORBA::Short SMESH_MeshEditor_i::GetPointState(CORBA::Double x,
return 0;
}
//=======================================================================
//function : IsManifold
//purpose : Check if a 2D mesh is manifold
//=======================================================================
CORBA::Boolean SMESH_MeshEditor_i::IsManifold()
throw (SALOME::SALOME_Exception)
{
bool isManifold = true;
SMESH_TRY;
SMESH_MeshAlgos::TFreeBorderVec foundFreeBordes;
SMESH_MeshAlgos::FindFreeBorders( *getMeshDS(),
foundFreeBordes,
/*closedOnly=*/true,
&isManifold );
SMESH_CATCH( SMESH::throwCorbaException );
return isManifold;
}
//=======================================================================
//function : IsCoherentOrientation2D
//purpose : Check if orientation of 2D elements is coherent
//=======================================================================
CORBA::Boolean SMESH_MeshEditor_i::IsCoherentOrientation2D()
throw (SALOME::SALOME_Exception)
{
bool isGoodOri = true;
SMESH_TRY;
SMESH_MeshAlgos::TFreeBorderVec foundFreeBordes;
SMESH_MeshAlgos::FindFreeBorders( *getMeshDS(),
foundFreeBordes,
/*closedOnly=*/true,
/*isManifold=*/0,
&isGoodOri);
SMESH_CATCH( SMESH::throwCorbaException );
return isGoodOri;
}
//=======================================================================
//function : FindFreeBorders
//purpose : Returns all or only closed FreeBorder's.
//=======================================================================
SMESH::ListOfFreeBorders* SMESH_MeshEditor_i::FindFreeBorders(CORBA::Boolean closedOnly)
throw (SALOME::SALOME_Exception)
{
SMESH::ListOfFreeBorders_var resBorders = new SMESH::ListOfFreeBorders;
SMESH_TRY;
SMESH_MeshAlgos::TFreeBorderVec foundFreeBordes;
SMESH_MeshAlgos::FindFreeBorders( *getMeshDS(), foundFreeBordes, closedOnly );
resBorders->length( foundFreeBordes.size() );
for ( size_t i = 0; i < foundFreeBordes.size(); ++i )
{
const SMESH_MeshAlgos::TFreeBorder& bordNodes = foundFreeBordes[i];
SMESH::FreeBorder& bordOut = resBorders[i];
bordOut.nodeIDs.length( bordNodes.size() );
for ( size_t iN = 0; iN < bordNodes.size(); ++iN )
bordOut.nodeIDs[ iN ] = bordNodes[ iN ]->GetID();
}
SMESH_CATCH( SMESH::throwCorbaException );
return resBorders._retn();
}
//=======================================================================
//function : FillHole
//purpose : Fill with 2D elements a hole defined by a FreeBorder.
//=======================================================================
void SMESH_MeshEditor_i::FillHole(const SMESH::FreeBorder& theHole)
throw (SALOME::SALOME_Exception)
{
initData();
if ( theHole.nodeIDs.length() < 4 )
THROW_SALOME_CORBA_EXCEPTION("A hole should be bound by at least 3 nodes", SALOME::BAD_PARAM);
if ( theHole.nodeIDs[0] != theHole.nodeIDs[ theHole.nodeIDs.length()-1 ] )
THROW_SALOME_CORBA_EXCEPTION("Not closed hole boundary. "
"First and last nodes must be same", SALOME::BAD_PARAM);
SMESH_MeshAlgos::TFreeBorder bordNodes;
bordNodes.resize( theHole.nodeIDs.length() );
for ( size_t iN = 0; iN < theHole.nodeIDs.length(); ++iN )
{
bordNodes[ iN ] = getMeshDS()->FindNode( theHole.nodeIDs[ iN ]);
if ( !bordNodes[ iN ] )
THROW_SALOME_CORBA_EXCEPTION(SMESH_Comment("Node #") << theHole.nodeIDs[ iN ]
<< " does not exist", SALOME::BAD_PARAM);
}
SMESH_TRY;
MeshEditor_I::TPreviewMesh* previewMesh = 0;
SMDS_Mesh* meshDS = getMeshDS();
if ( myIsPreviewMode )
{
// copy faces sharing nodes of theHole
TIDSortedElemSet holeFaces;
previewMesh = getPreviewMesh( SMDSAbs_Face );
for ( size_t i = 0; i < bordNodes.size(); ++i )
{
SMDS_ElemIteratorPtr fIt = bordNodes[i]->GetInverseElementIterator( SMDSAbs_Face );
while ( fIt->more() )
{
const SMDS_MeshElement* face = fIt->next();
if ( holeFaces.insert( face ).second )
previewMesh->Copy( face );
}
bordNodes[i] = previewMesh->GetMeshDS()->FindNode( bordNodes[i]->GetID() );
ASSERT( bordNodes[i] );
}
meshDS = previewMesh->GetMeshDS();
}
std::vector<const SMDS_MeshElement*> newFaces;
SMESH_MeshAlgos::FillHole( bordNodes, *meshDS, newFaces );
if ( myIsPreviewMode )
{
previewMesh->Clear();
for ( size_t i = 0; i < newFaces.size(); ++i )
previewMesh->Copy( newFaces[i] );
}
else
{
getEditor().ClearLastCreated();
SMESH_SequenceOfElemPtr& aSeq =
const_cast<SMESH_SequenceOfElemPtr&>( getEditor().GetLastCreatedElems() );
for ( size_t i = 0; i < newFaces.size(); ++i )
aSeq.Append( newFaces[i] );
TPythonDump() << this << ".FillHole( SMESH.FreeBorder(" << theHole.nodeIDs << " ))";
}
SMESH_CATCH( SMESH::throwCorbaException );
}
//=======================================================================
//function : convError
//purpose :

View File

@ -527,7 +527,7 @@ public:
SMESH::ElementType type)
throw (SALOME::SALOME_Exception);
/*!
* Searching among the given elements, return elements of given type
* Searching among the given elements, return elements of given type
* where the given point is IN or ON.
* 'ALL' type means elements of any type excluding nodes
*/
@ -545,6 +545,30 @@ public:
CORBA::Short GetPointState(CORBA::Double x, CORBA::Double y, CORBA::Double z)
throw (SALOME::SALOME_Exception);
/*!
* Check if a 2D mesh is manifold
*/
CORBA::Boolean IsManifold()
throw (SALOME::SALOME_Exception);
/*!
* Check if orientation of 2D elements is coherent
*/
CORBA::Boolean IsCoherentOrientation2D()
throw (SALOME::SALOME_Exception);
/*!
* Returns all or only closed FreeBorder's.
*/
SMESH::ListOfFreeBorders* FindFreeBorders(CORBA::Boolean closedOnly)
throw (SALOME::SALOME_Exception);
/*!
* Fill with 2D elements a hole defined by a FreeBorder.
*/
void FillHole(const SMESH::FreeBorder& hole)
throw (SALOME::SALOME_Exception);
SMESH::CoincidentFreeBorders* FindCoincidentFreeBorders(CORBA::Double tolerance);
CORBA::Short SewCoincidentFreeBorders(const SMESH::CoincidentFreeBorders& freeBorders,
CORBA::Boolean createPolygons,
@ -552,35 +576,35 @@ public:
throw (SALOME::SALOME_Exception);
SMESH::SMESH_MeshEditor::Sew_Error
SewFreeBorders(CORBA::Long FirstNodeID1,
CORBA::Long SecondNodeID1,
CORBA::Long LastNodeID1,
CORBA::Long FirstNodeID2,
CORBA::Long SecondNodeID2,
CORBA::Long LastNodeID2,
CORBA::Boolean CreatePolygons,
CORBA::Boolean CreatePolyedrs) throw (SALOME::SALOME_Exception);
SewFreeBorders(CORBA::Long FirstNodeID1,
CORBA::Long SecondNodeID1,
CORBA::Long LastNodeID1,
CORBA::Long FirstNodeID2,
CORBA::Long SecondNodeID2,
CORBA::Long LastNodeID2,
CORBA::Boolean CreatePolygons,
CORBA::Boolean CreatePolyedrs) throw (SALOME::SALOME_Exception);
SMESH::SMESH_MeshEditor::Sew_Error
SewConformFreeBorders(CORBA::Long FirstNodeID1,
CORBA::Long SecondNodeID1,
CORBA::Long LastNodeID1,
CORBA::Long FirstNodeID2,
CORBA::Long SecondNodeID2) throw (SALOME::SALOME_Exception);
SewConformFreeBorders(CORBA::Long FirstNodeID1,
CORBA::Long SecondNodeID1,
CORBA::Long LastNodeID1,
CORBA::Long FirstNodeID2,
CORBA::Long SecondNodeID2) throw (SALOME::SALOME_Exception);
SMESH::SMESH_MeshEditor::Sew_Error
SewBorderToSide(CORBA::Long FirstNodeIDOnFreeBorder,
CORBA::Long SecondNodeIDOnFreeBorder,
CORBA::Long LastNodeIDOnFreeBorder,
CORBA::Long FirstNodeIDOnSide,
CORBA::Long LastNodeIDOnSide,
CORBA::Boolean CreatePolygons,
CORBA::Boolean CreatePolyedrs) throw (SALOME::SALOME_Exception);
SewBorderToSide(CORBA::Long FirstNodeIDOnFreeBorder,
CORBA::Long SecondNodeIDOnFreeBorder,
CORBA::Long LastNodeIDOnFreeBorder,
CORBA::Long FirstNodeIDOnSide,
CORBA::Long LastNodeIDOnSide,
CORBA::Boolean CreatePolygons,
CORBA::Boolean CreatePolyedrs) throw (SALOME::SALOME_Exception);
SMESH::SMESH_MeshEditor::Sew_Error
SewSideElements(const SMESH::long_array& IDsOfSide1Elements,
const SMESH::long_array& IDsOfSide2Elements,
CORBA::Long NodeID1OfSide1ToMerge,
CORBA::Long NodeID1OfSide2ToMerge,
CORBA::Long NodeID2OfSide1ToMerge,
CORBA::Long NodeID2OfSide2ToMerge) throw (SALOME::SALOME_Exception);
SewSideElements(const SMESH::long_array& IDsOfSide1Elements,
const SMESH::long_array& IDsOfSide2Elements,
CORBA::Long NodeID1OfSide1ToMerge,
CORBA::Long NodeID1OfSide2ToMerge,
CORBA::Long NodeID2OfSide1ToMerge,
CORBA::Long NodeID2OfSide2ToMerge) throw (SALOME::SALOME_Exception);
/*!
* Set new nodes for given element.