-
-//=======================================================================
-//function : TBlock::TEdge::GetU
-//purpose :
-//=======================================================================
-
-double TBlock::TEdge::GetU( const gp_XYZ& theParams ) const
-{
- double u = theParams.Coord( myCoordInd );
- return ( 1 - u ) * myFirst + u * myLast;
-}
-
-//=======================================================================
-//function : TBlock::TEdge::Point
-//purpose :
-//=======================================================================
-
-gp_XYZ TBlock::TEdge::Point( const gp_XYZ& theParams ) const
-{
- gp_XYZ p = myC3d->Value( GetU( theParams )).XYZ();
- if ( myTrsf.Form() != gp_Identity )
- myTrsf.Transforms( p );
- return p;
-}
-
-//=======================================================================
-//function : TBlock::TFace::GetUV
-//purpose :
-//=======================================================================
-
-gp_XY TBlock::TFace::GetUV( const gp_XYZ& theParams ) const
-{
- gp_XY uv(0.,0.);
- double dU = theParams.Coord( GetUInd() );
- double dV = theParams.Coord( GetVInd() );
- for ( int iE = 0; iE < 4; iE++ ) // loop on 4 edges
- {
- double Ecoef = 0, Vcoef = 0;
- switch ( iE ) {
- case 0:
- Ecoef = ( 1 - dV ); // u0
- Vcoef = ( 1 - dU ) * ( 1 - dV ); break; // 00
- case 1:
- Ecoef = dV; // u1
- Vcoef = dU * ( 1 - dV ); break; // 10
- case 2:
- Ecoef = ( 1 - dU ); // 0v
- Vcoef = dU * dV ; break; // 11
- case 3:
- Ecoef = dU ; // 1v
- Vcoef = ( 1 - dU ) * dV ; break; // 01
- default:;
- }
- // edge addition
- double u = theParams.Coord( myCoordInd[ iE ] );
- u = ( 1 - u ) * myFirst[ iE ] + u * myLast[ iE ];
- uv += Ecoef * myC2d[ iE ]->Value( u ).XY();
- // corner addition
- uv -= Vcoef * myCorner[ iE ];
- }
- return uv;
-}
-
-//=======================================================================
-//function : TBlock::TFace::Point
-//purpose :
-//=======================================================================
-
-gp_XYZ TBlock::TFace::Point( const gp_XYZ& theParams ) const
-{
- gp_XY uv = GetUV( theParams );
- gp_XYZ p = myS->Value( uv.X(), uv.Y() ).XYZ();
- if ( myTrsf.Form() != gp_Identity )
- myTrsf.Transforms( p );
- return p;
-}
-
-//=======================================================================
-//function : GetShapeCoef
-//purpose :
-//=======================================================================
-
-double* TBlock::GetShapeCoef (const int theShapeID)
-{
- static double shapeCoef[][3] = {
- // V000, V100, V010, V110
- { -1,-1,-1 }, { 1,-1,-1 }, { -1, 1,-1 }, { 1, 1,-1 },
- // V001, V101, V011, V111,
- { -1,-1, 1 }, { 1,-1, 1 }, { -1, 1, 1 }, { 1, 1, 1 },
- // Ex00, Ex10, Ex01, Ex11,
- { 0,-1,-1 }, { 0, 1,-1 }, { 0,-1, 1 }, { 0, 1, 1 },
- // E0y0, E1y0, E0y1, E1y1,
- { -1, 0,-1 }, { 1, 0,-1 }, { -1, 0, 1 }, { 1, 0, 1 },
- // E00z, E10z, E01z, E11z,
- { -1,-1, 0 }, { 1,-1, 0 }, { -1, 1, 0 }, { 1, 1, 0 },
- // Fxy0, Fxy1, Fx0z, Fx1z, F0yz, F1yz,
- { 0, 0,-1 }, { 0, 0, 1 }, { 0,-1, 0 }, { 0, 1, 0 }, { -1, 0, 0 }, { 1, 0, 0 },
- // ID_Shell
- { 0, 0, 0 }
- };
- if ( theShapeID < ID_V000 || theShapeID > ID_F1yz )
- return shapeCoef[ ID_Shell - 1 ];
-
- return shapeCoef[ theShapeID - 1 ];
-}
-
-//=======================================================================
-//function : ShellPoint
-//purpose : return coordinates of a point in shell
-//=======================================================================
-
-bool TBlock::ShellPoint( const gp_XYZ& theParams, gp_XYZ& thePoint ) const
-{
- thePoint.SetCoord( 0., 0., 0. );
- for ( int shapeID = ID_V000; shapeID < ID_Shell; shapeID++ )
- {
- // coef
- double* coefs = GetShapeCoef( shapeID );
- double k = 1;
- for ( int iCoef = 0; iCoef < 3; iCoef++ ) {
- if ( coefs[ iCoef ] != 0 ) {
- if ( coefs[ iCoef ] < 0 )
- k *= ( 1. - theParams.Coord( iCoef + 1 ));
- else
- k *= theParams.Coord( iCoef + 1 );
- }
- }
- // point on a shape
- gp_XYZ Ps;
- if ( shapeID < ID_Ex00 ) // vertex
- VertexPoint( shapeID, Ps );
- else if ( shapeID < ID_Fxy0 ) { // edge
- EdgePoint( shapeID, theParams, Ps );
- k = -k;
- } else // face
- FacePoint( shapeID, theParams, Ps );
-
- thePoint += k * Ps;
- }
- return true;
-}
-
-//=======================================================================
-//function : NbVariables
-//purpose :
-//=======================================================================
-
-Standard_Integer TBlock::NbVariables() const
-{
- return 3;
-}
-
-//=======================================================================
-//function : NbEquations
-//purpose :
-//=======================================================================
-
-Standard_Integer TBlock::NbEquations() const
-{
- return 1;
-}
-
-//=======================================================================
-//function : Value
-//purpose :
-//=======================================================================
-
-Standard_Boolean TBlock::Value(const math_Vector& theXYZ, math_Vector& theFxyz)
-{
- gp_XYZ P, params( theXYZ(1), theXYZ(2), theXYZ(3) );
- if ( params.IsEqual( myParam, DBL_MIN )) { // same param
- theFxyz( 1 ) = myValues[ 0 ];
- }
- else {
- ShellPoint( params, P );
- gp_Vec dP( P - myPoint );
- theFxyz(1) = SQRT_FUNC ? dP.SquareMagnitude() : dP.Magnitude();
- }
- return true;
-}
-
-//=======================================================================
-//function : Derivatives
-//purpose :
-//=======================================================================
-
-Standard_Boolean TBlock::Derivatives(const math_Vector& XYZ,math_Matrix& Df)
-{
- MESSAGE( "TBlock::Derivatives()");
- math_Vector F(1,3);
- return Values(XYZ,F,Df);
-}
-
-//=======================================================================
-//function : Values
-//purpose :
-//=======================================================================
-
-Standard_Boolean TBlock::Values(const math_Vector& theXYZ,
- math_Vector& theFxyz,
- math_Matrix& theDf)
-{
-// MESSAGE( endl<<"TBlock::Values( "<<theXYZ(1)<<", "<<theXYZ(2)<<", "<<theXYZ(3)<<")");
-
- gp_XYZ P, params( theXYZ(1), theXYZ(2), theXYZ(3) );
- if ( params.IsEqual( myParam, DBL_MIN )) { // same param
- theFxyz( 1 ) = myValues[ 0 ];
- theDf( 1,1 ) = myValues[ 1 ];
- theDf( 1,2 ) = myValues[ 2 ];
- theDf( 1,3 ) = myValues[ 3 ];
- return true;
- }
-
- ShellPoint( params, P );
- //myNbIterations++; // how many time call ShellPoint()
-
- gp_Vec dP( P - myPoint );
- theFxyz(1) = SQRT_FUNC ? dP.SquareMagnitude() : dP.Magnitude();
- if ( theFxyz(1) < 1e-6 ) {
- myParam = params;
- myValues[ 0 ]= 0;
- theDf( 1,1 ) = 0;
- theDf( 1,2 ) = 0;
- theDf( 1,3 ) = 0;
- return true;
- }
-
- if ( theFxyz(1) < myValues[0] )
- {
- // 3 partial derivatives
- gp_Vec drv[ 3 ];
- for ( int iP = 1; iP <= 3; iP++ ) {
- gp_XYZ Pi;
- params.SetCoord( iP, theXYZ( iP ) + 0.001 );
- ShellPoint( params, Pi );
- params.SetCoord( iP, theXYZ( iP ) ); // restore params
- gp_Vec dPi ( P, Pi );
- double mag = dPi.Magnitude();
- if ( mag > DBL_MIN )
- dPi /= mag;
- drv[ iP - 1 ] = dPi;
- }
- for ( int iP = 0; iP < 3; iP++ ) {
- if ( iP == myFaceIndex )
- theDf( 1, iP + 1 ) = myFaceParam;
- else {
- // like IntAna_IntConicQuad::Perform (const gp_Lin& L, const gp_Pln& P)
- // where L is (P -> myPoint), P is defined by the 2 other derivative direction
- int iPrev = ( iP ? iP - 1 : 2 );
- int iNext = ( iP == 2 ? 0 : iP + 1 );
- gp_Vec plnNorm = drv[ iPrev ].Crossed( drv [ iNext ] );
- double Direc = plnNorm * drv[ iP ];
- if ( Abs(Direc) <= DBL_MIN )
- theDf( 1, iP + 1 ) = dP * drv[ iP ];
- else {
- double Dis = plnNorm * P - plnNorm * myPoint;
- theDf( 1, iP + 1 ) = Dis/Direc;
- }
- }
- }
- //myNbIterations +=3; // how many time call ShellPoint()
-
- // store better values
- myParam = params;
- myValues[0]= theFxyz(1);
- myValues[1]= theDf(1,1);
- myValues[2]= theDf(1,2);
- myValues[3]= theDf(1,3);
-
-// SCRUTE( theFxyz(1) );
-// SCRUTE( theDf( 1,1 ));
-// SCRUTE( theDf( 1,2 ));
-// SCRUTE( theDf( 1,3 ));
- }
-
- return true;
-}
-
-//=======================================================================
-//function : ComputeParameters
-//purpose : compute point parameters in the block
-//=======================================================================
-
-bool TBlock::ComputeParameters(const gp_Pnt& thePoint,
- gp_XYZ& theParams,
- const int theShapeID)
-{
-// MESSAGE( endl<<"TBlock::ComputeParameters( "
-// <<thePoint.X()<<", "<<thePoint.Y()<<", "<<thePoint.Z()<<")");
-
- myPoint = thePoint.XYZ();
-
- myParam.SetCoord( -1,-1,-1 );
- myValues[0] = 1e100;
-
- const bool isOnFace = IsFaceID( theShapeID );
- double * coef = GetShapeCoef( theShapeID );
-
- // the first guess
- math_Vector start( 1, 3, 0.0 );
- if ( !myGridComputed )
- {
- // define the first guess by thePoint projection on lines
- // connecting vertices
- bool needGrid = false;
- gp_XYZ par000( 0, 0, 0 ), par111( 1, 1, 1 );
- double zero = DBL_MIN * DBL_MIN;
- for ( int iEdge = 0, iParam = 1; iParam <= 3 && !needGrid; iParam++ )
- {
- if ( isOnFace && coef[ iParam - 1 ] != 0 ) {
- iEdge += 4;
- continue;
- }
- for ( int iE = 0; iE < 4; iE++, iEdge++ ) { // loop on 4 parallel edges
- gp_Pnt p0 = myEdge[ iEdge ].Point( par000 );
- gp_Pnt p1 = myEdge[ iEdge ].Point( par111 );
- gp_Vec v01( p0, p1 ), v0P( p0, thePoint );
- double len2 = v01.SquareMagnitude();
- double par = 0;
- if ( len2 > zero ) {
- par = v0P.Dot( v01 ) / len2;
- if ( par < 0 || par > 1 ) {
- needGrid = true;
- break;
- }
- }
- start( iParam ) += par;
- }
- start( iParam ) /= 4.;
- }
- if ( needGrid ) {
- // compute nodes of 3 x 3 x 3 grid
- int iNode = 0;
- for ( double x = 0.25; x < 0.9; x += 0.25 )
- for ( double y = 0.25; y < 0.9; y += 0.25 )
- for ( double z = 0.25; z < 0.9; z += 0.25 ) {
- TxyzPair & prmPtn = my3x3x3GridNodes[ iNode++ ];
- prmPtn.first.SetCoord( x, y, z );
- ShellPoint( prmPtn.first, prmPtn.second );
- }
- myGridComputed = true;
- }
- }
- if ( myGridComputed ) {
- double minDist = DBL_MAX;
- gp_XYZ* bestParam = 0;
- for ( int iNode = 0; iNode < 27; iNode++ ) {
- TxyzPair & prmPtn = my3x3x3GridNodes[ iNode ];
- double dist = ( thePoint.XYZ() - prmPtn.second ).SquareModulus();
- if ( dist < minDist ) {
- minDist = dist;
- bestParam = & prmPtn.first;
- }
- }
- start( 1 ) = bestParam->X();
- start( 2 ) = bestParam->Y();
- start( 3 ) = bestParam->Z();
- }
-
- int myFaceIndex = -1;
- if ( isOnFace ) {
- // put a point on the face
- for ( int iCoord = 0; iCoord < 3; iCoord++ )
- if ( coef[ iCoord ] ) {
- myFaceIndex = iCoord;
- myFaceParam = ( coef[ myFaceIndex ] < 0.5 ) ? 0.0 : 1.0;
- start( iCoord + 1 ) = myFaceParam;
- }
- }
- math_Vector low ( 1, 3, 0.0 );
- math_Vector up ( 1, 3, 1.0 );
- math_Vector tol ( 1, 3, 1e-4 );
- math_FunctionSetRoot paramSearch( *this, tol );
-
- int nbLoops = 0;
- while ( myValues[0] > 1e-1 && nbLoops++ < 10 ) {
- paramSearch.Perform ( *this, start, low, up );
- if ( !paramSearch.IsDone() ) {
- //MESSAGE( " !paramSearch.IsDone() " );
- }
- else {
- //MESSAGE( " NB ITERATIONS: " << paramSearch.NbIterations() );
- }
- start( 1 ) = myParam.X();
- start( 2 ) = myParam.Y();
- start( 3 ) = myParam.Z();
- //MESSAGE( "Distance: " << ( SQRT_FUNC ? sqrt(myValues[0]) : myValues[0] ));
- }
-// MESSAGE( endl << myParam.X() << " " << myParam.Y() << " " << myParam.Z() << endl);
-// mySumDist += myValues[0];
-// MESSAGE( " TOTAL NB ITERATIONS: " << myNbIterations <<
-// " DIST: " << ( SQRT_FUNC ? sqrt(mySumDist) : mySumDist ));
-
-
- theParams = myParam;
-
- return true;
-}
-
-//=======================================================================
-//function : GetStateNumber
-//purpose :
-//=======================================================================
-
-Standard_Integer TBlock::GetStateNumber ()
-{
-// MESSAGE( endl<<"TBlock::GetStateNumber( "<<myParam.X()<<", "<<
-// myParam.Y()<<", "<<myParam.Z()<<") DISTANCE: " << myValues[0]);
- return myValues[0] < 1e-1;
-}
-
-//=======================================================================
-//function : DumpShapeID
-//purpose : debug an id of a block sub-shape
-//=======================================================================
-
-#define CASEDUMP(id,strm) case id: strm << #id; break;
-
-ostream& TBlock::DumpShapeID (const int id, ostream& stream)
-{
- switch ( id ) {
- CASEDUMP( ID_V000, stream );
- CASEDUMP( ID_V100, stream );
- CASEDUMP( ID_V010, stream );
- CASEDUMP( ID_V110, stream );
- CASEDUMP( ID_V001, stream );
- CASEDUMP( ID_V101, stream );
- CASEDUMP( ID_V011, stream );
- CASEDUMP( ID_V111, stream );
- CASEDUMP( ID_Ex00, stream );
- CASEDUMP( ID_Ex10, stream );
- CASEDUMP( ID_Ex01, stream );
- CASEDUMP( ID_Ex11, stream );
- CASEDUMP( ID_E0y0, stream );
- CASEDUMP( ID_E1y0, stream );
- CASEDUMP( ID_E0y1, stream );
- CASEDUMP( ID_E1y1, stream );
- CASEDUMP( ID_E00z, stream );
- CASEDUMP( ID_E10z, stream );
- CASEDUMP( ID_E01z, stream );
- CASEDUMP( ID_E11z, stream );
- CASEDUMP( ID_Fxy0, stream );
- CASEDUMP( ID_Fxy1, stream );
- CASEDUMP( ID_Fx0z, stream );
- CASEDUMP( ID_Fx1z, stream );
- CASEDUMP( ID_F0yz, stream );
- CASEDUMP( ID_F1yz, stream );
- CASEDUMP( ID_Shell, stream );
- default: stream << "ID_INVALID";
- }
- return stream;
-}
-
-//=======================================================================
-//function : GetShapeIDByParams
-//purpose : define an id of the block sub-shape by normlized point coord
-//=======================================================================
-
-int TBlock::GetShapeIDByParams ( const gp_XYZ& theCoord )
-{
- // id ( 0 - 26 ) computation:
-
- // vertex ( 0 - 7 ) : id = 1*x + 2*y + 4*z
-
- // edge || X ( 8 - 11 ) : id = 8 + 1*y + 2*z
- // edge || Y ( 12 - 15 ): id = 1*x + 12 + 2*z
- // edge || Z ( 16 - 19 ): id = 1*x + 2*y + 16
-
- // face || XY ( 20 - 21 ): id = 8 + 12 + 1*z - 0
- // face || XZ ( 22 - 23 ): id = 8 + 1*y + 16 - 2
- // face || YZ ( 24 - 25 ): id = 1*x + 12 + 16 - 4
-
- static int iAddBnd[] = { 1, 2, 4 };
- static int iAddNotBnd[] = { 8, 12, 16 };
- static int iFaceSubst[] = { 0, 2, 4 };
-
- int id = 0;
- int iOnBoundary = 0;
- for ( int iCoord = 0; iCoord < 3; iCoord++ )
- {
- double val = theCoord.Coord( iCoord + 1 );
- if ( val == 0.0 )
- iOnBoundary++;
- else if ( val == 1.0 )
- id += iAddBnd[ iOnBoundary++ ];
- else
- id += iAddNotBnd[ iCoord ];
- }
- if ( iOnBoundary == 1 ) // face
- id -= iFaceSubst[ (id - 20) / 4 ];
- else if ( iOnBoundary == 0 ) // shell
- id = 26;
-
- if ( id > 26 || id < 0 ) {
- MESSAGE( "GetShapeIDByParams() = " << id
- <<" "<< theCoord.X() <<" "<< theCoord.Y() <<" "<< theCoord.Z() );
- }
-
- return id + 1; // shape ids start at 1
-}
-
-//=======================================================================
-//function : LoadBlockShapes
-//purpose : add sub-shapes of theBlock to theShapeIDMap so that they get
-// IDs acoording to enum TBlockShapeID
-//=======================================================================
-
-bool TBlock::LoadBlockShapes(const TopoDS_Vertex& theVertex000,
- const TopoDS_Vertex& theVertex001,
-// TopTools_IndexedMapOfShape& theShapeIDMap
- TopTools_IndexedMapOfOrientedShape& theShapeIDMap )
-{
- MESSAGE(" ::LoadBlockShapes()");
- myGridComputed = false;
-
- // 6 vertices
- TopoDS_Shape V000, V100, V010, V110, V001, V101, V011, V111;
- // 12 edges
- TopoDS_Shape Ex00, Ex10, Ex01, Ex11;
- TopoDS_Shape E0y0, E1y0, E0y1, E1y1;
- TopoDS_Shape E00z, E10z, E01z, E11z;
- // 6 faces
- TopoDS_Shape Fxy0, Fx0z, F0yz, Fxy1, Fx1z, F1yz;
-
- // nb of faces bound to a vertex in TopTools_IndexedDataMapOfShapeListOfShape
- // filled by TopExp::MapShapesAndAncestors()
- const int NB_FACES_BY_VERTEX = 6;
-
- TopTools_IndexedDataMapOfShapeListOfShape vfMap;
- TopExp::MapShapesAndAncestors( myShell, TopAbs_VERTEX, TopAbs_FACE, vfMap );
- if ( vfMap.Extent() != 8 ) {
- MESSAGE(" Wrong nb of vertices in the block: " << vfMap.Extent() );
- return false;
- }
-
- V000 = theVertex000;
- V001 = theVertex001;
-
- if ( V000.IsNull() ) {
- // find vertex 000 - the one with smallest coordinates
- double minVal = DBL_MAX, minX, val;
- for ( int i = 1; i <= 8; i++ ) {
- const TopoDS_Vertex& v = TopoDS::Vertex( vfMap.FindKey( i ));
- gp_Pnt P = BRep_Tool::Pnt( v );
- val = P.X() + P.Y() + P.Z();
- if ( val < minVal || ( val == minVal && P.X() < minX )) {
- V000 = v;
- minVal = val;
- minX = P.X();
- }
- }
- // find vertex 001 - the one on the most vertical edge passing through V000
- TopTools_IndexedDataMapOfShapeListOfShape veMap;
- TopExp::MapShapesAndAncestors( myShell, TopAbs_VERTEX, TopAbs_EDGE, veMap );
- gp_Vec dir001 = gp::DZ();
- gp_Pnt p000 = BRep_Tool::Pnt( TopoDS::Vertex( V000 ));
- double maxVal = -DBL_MAX;
- TopTools_ListIteratorOfListOfShape eIt ( veMap.FindFromKey( V000 ));
- for ( ; eIt.More(); eIt.Next() ) {
- const TopoDS_Edge& e = TopoDS::Edge( eIt.Value() );
- TopoDS_Vertex v = TopExp::FirstVertex( e );
- if ( v.IsSame( V000 ))
- v = TopExp::LastVertex( e );
- val = dir001 * gp_Vec( p000, BRep_Tool::Pnt( v )).Normalized();
- if ( val > maxVal ) {
- V001 = v;
- maxVal = val;
- }
- }
- }
-
- // find the bottom (Fxy0), Fx0z and F0yz faces
-
- const TopTools_ListOfShape& f000List = vfMap.FindFromKey( V000 );
- const TopTools_ListOfShape& f001List = vfMap.FindFromKey( V001 );
- if (f000List.Extent() != NB_FACES_BY_VERTEX ||
- f001List.Extent() != NB_FACES_BY_VERTEX ) {
- MESSAGE(" LoadBlockShapes() " << f000List.Extent() << " " << f001List.Extent());
- return false;
- }
- TopTools_ListIteratorOfListOfShape f001It, f000It ( f000List );
- int i, j, iFound1, iFound2;
- for ( j = 0; f000It.More(); f000It.Next(), j++ )
- {
- if ( NB_FACES_BY_VERTEX == 6 && j % 2 ) continue; // each face encounters twice
- const TopoDS_Shape& F = f000It.Value();
- for ( i = 0, f001It.Initialize( f001List ); f001It.More(); f001It.Next(), i++ ) {
- if ( NB_FACES_BY_VERTEX == 6 && i % 2 ) continue; // each face encounters twice
- if ( F.IsSame( f001It.Value() ))
- break;
- }
- if ( f001It.More() ) // Fx0z or F0yz found
- if ( Fx0z.IsNull() ) {
- Fx0z = F;
- iFound1 = i;
- } else {
- F0yz = F;
- iFound2 = i;
- }
- else // F is the bottom face
- Fxy0 = F;
- }
- if ( Fxy0.IsNull() || Fx0z.IsNull() || F0yz.IsNull() ) {
- MESSAGE( Fxy0.IsNull() <<" "<< Fx0z.IsNull() <<" "<< F0yz.IsNull() );
- return false;
- }
-
- // choose the top face (Fxy1)
- for ( i = 0, f001It.Initialize( f001List ); f001It.More(); f001It.Next(), i++ ) {
- if ( NB_FACES_BY_VERTEX == 6 && i % 2 ) continue; // each face encounters twice
- if ( i != iFound1 && i != iFound2 )
- break;
- }
- Fxy1 = f001It.Value();
- if ( Fxy1.IsNull() ) {
- MESSAGE(" LoadBlockShapes() error ");
- return false;
- }
-
- // find bottom edges and veritices
- list< TopoDS_Edge > eList;
- list< int > nbVertexInWires;
- getOrderedEdges( TopoDS::Face( Fxy0 ), TopoDS::Vertex( V000 ), eList, nbVertexInWires );
- if ( nbVertexInWires.size() != 1 || nbVertexInWires.front() != 4 ) {
- MESSAGE(" LoadBlockShapes() error ");
- return false;
- }
- list< TopoDS_Edge >::iterator elIt = eList.begin();
- for ( i = 0; elIt != eList.end(); elIt++, i++ )
- switch ( i ) {
- case 0: E0y0 = *elIt; V010 = TopExp::LastVertex( *elIt, true ); break;
- case 1: Ex10 = *elIt; V110 = TopExp::LastVertex( *elIt, true ); break;
- case 2: E1y0 = *elIt; V100 = TopExp::LastVertex( *elIt, true ); break;
- case 3: Ex00 = *elIt; break;
- default:;
- }
- if ( i != 4 || E0y0.IsNull() || Ex10.IsNull() || E1y0.IsNull() || Ex00.IsNull() ) {
- MESSAGE(" LoadBlockShapes() error, eList.size()=" << eList.size());
- return false;
- }
-
-
- // find top edges and veritices
- eList.clear();
- getOrderedEdges( TopoDS::Face( Fxy1 ), TopoDS::Vertex( V001 ), eList, nbVertexInWires );
- if ( nbVertexInWires.size() != 1 || nbVertexInWires.front() != 4 ) {
- MESSAGE(" LoadBlockShapes() error ");
- return false;
- }
- for ( i = 0, elIt = eList.begin(); elIt != eList.end(); elIt++, i++ )
- switch ( i ) {
- case 0: Ex01 = *elIt; V101 = TopExp::LastVertex( *elIt, true ); break;
- case 1: E1y1 = *elIt; V111 = TopExp::LastVertex( *elIt, true ); break;
- case 2: Ex11 = *elIt; V011 = TopExp::LastVertex( *elIt, true ); break;
- case 3: E0y1 = *elIt; break;
- default:;
- }
- if ( i != 4 || Ex01.IsNull() || E1y1.IsNull() || Ex11.IsNull() || E0y1.IsNull() ) {
- MESSAGE(" LoadBlockShapes() error, eList.size()=" << eList.size());
- return false;
- }
-
- // swap Fx0z and F0yz if necessary
- TopExp_Explorer exp( Fx0z, TopAbs_VERTEX );
- for ( ; exp.More(); exp.Next() ) // Fx0z shares V101 and V100
- if ( V101.IsSame( exp.Current() ) || V100.IsSame( exp.Current() ))
- break; // V101 or V100 found
- if ( !exp.More() ) { // not found
- TopoDS_Shape f = Fx0z; Fx0z = F0yz; F0yz = f;
- }
-
- // find Fx1z and F1yz faces
- const TopTools_ListOfShape& f111List = vfMap.FindFromKey( V111 );
- const TopTools_ListOfShape& f110List = vfMap.FindFromKey( V110 );
- if (f111List.Extent() != NB_FACES_BY_VERTEX ||
- f110List.Extent() != NB_FACES_BY_VERTEX ) {
- MESSAGE(" LoadBlockShapes() " << f111List.Extent() << " " << f110List.Extent());
- return false;
- }
- TopTools_ListIteratorOfListOfShape f111It, f110It ( f110List);
- for ( j = 0 ; f110It.More(); f110It.Next(), j++ ) {
- if ( NB_FACES_BY_VERTEX == 6 && j % 2 ) continue; // each face encounters twice
- const TopoDS_Shape& F = f110It.Value();
- for ( i = 0, f111It.Initialize( f111List ); f111It.More(); f111It.Next(), i++ ) {
- if ( NB_FACES_BY_VERTEX == 6 && i % 2 ) continue; // each face encounters twice
- if ( F.IsSame( f111It.Value() )) { // Fx1z or F1yz found
- if ( Fx1z.IsNull() )
- Fx1z = F;
- else
- F1yz = F;
- }
- }
- }
- if ( Fx1z.IsNull() || F1yz.IsNull() ) {
- MESSAGE(" LoadBlockShapes() error ");
- return false;
- }
-
- // swap Fx1z and F1yz if necessary
- for ( exp.Init( Fx1z, TopAbs_VERTEX ); exp.More(); exp.Next() )
- if ( V010.IsSame( exp.Current() ) || V011.IsSame( exp.Current() ))
- break;
- if ( !exp.More() ) {
- TopoDS_Shape f = Fx1z; Fx1z = F1yz; F1yz = f;
- }
-
- // find vertical edges
- for ( exp.Init( Fx0z, TopAbs_EDGE ); exp.More(); exp.Next() ) {
- const TopoDS_Edge& edge = TopoDS::Edge( exp.Current() );
- const TopoDS_Shape& vFirst = TopExp::FirstVertex( edge, true );
- if ( vFirst.IsSame( V001 ))
- E00z = edge;
- else if ( vFirst.IsSame( V100 ))
- E10z = edge;
- }
- if ( E00z.IsNull() || E10z.IsNull() ) {
- MESSAGE(" LoadBlockShapes() error ");
- return false;
- }
- for ( exp.Init( Fx1z, TopAbs_EDGE ); exp.More(); exp.Next() ) {
- const TopoDS_Edge& edge = TopoDS::Edge( exp.Current() );
- const TopoDS_Shape& vFirst = TopExp::FirstVertex( edge, true );
- if ( vFirst.IsSame( V111 ))
- E11z = edge;
- else if ( vFirst.IsSame( V010 ))
- E01z = edge;
- }
- if ( E01z.IsNull() || E11z.IsNull() ) {
- MESSAGE(" LoadBlockShapes() error ");
- return false;
- }
-
- // load shapes in theShapeIDMap
-
- theShapeIDMap.Clear();
-
- theShapeIDMap.Add(V000.Oriented( TopAbs_FORWARD ));
- theShapeIDMap.Add(V100.Oriented( TopAbs_FORWARD ));
- theShapeIDMap.Add(V010.Oriented( TopAbs_FORWARD ));
- theShapeIDMap.Add(V110.Oriented( TopAbs_FORWARD ));
- theShapeIDMap.Add(V001.Oriented( TopAbs_FORWARD ));
- theShapeIDMap.Add(V101.Oriented( TopAbs_FORWARD ));
- theShapeIDMap.Add(V011.Oriented( TopAbs_FORWARD ));
- theShapeIDMap.Add(V111.Oriented( TopAbs_FORWARD ));
-
- theShapeIDMap.Add(Ex00);
- theShapeIDMap.Add(Ex10);
- theShapeIDMap.Add(Ex01);
- theShapeIDMap.Add(Ex11);
-
- theShapeIDMap.Add(E0y0);
- theShapeIDMap.Add(E1y0);
- theShapeIDMap.Add(E0y1);
- theShapeIDMap.Add(E1y1);
-
- theShapeIDMap.Add(E00z);
- theShapeIDMap.Add(E10z);
- theShapeIDMap.Add(E01z);
- theShapeIDMap.Add(E11z);
-
- theShapeIDMap.Add(Fxy0);
- theShapeIDMap.Add(Fxy1);
- theShapeIDMap.Add(Fx0z);
- theShapeIDMap.Add(Fx1z);
- theShapeIDMap.Add(F0yz);
- theShapeIDMap.Add(F1yz);
-
- theShapeIDMap.Add(myShell);
-
- if ( theShapeIDMap.Extent() != 27 ) {
- MESSAGE("LoadBlockShapes() " << theShapeIDMap.Extent() );
- return false;
- }
-
- // store shapes geometry
- for ( int shapeID = 1; shapeID < theShapeIDMap.Extent(); shapeID++ )
- {
- const TopoDS_Shape& S = theShapeIDMap( shapeID );
- switch ( S.ShapeType() )
- {
- case TopAbs_VERTEX: {
-
- if ( shapeID > ID_V111 ) {
- MESSAGE(" shapeID =" << shapeID );
- return false;
- }
- myPnt[ shapeID - ID_V000 ] =
- BRep_Tool::Pnt( TopoDS::Vertex( S )).XYZ();
- break;
- }
- case TopAbs_EDGE: {
-
- const TopoDS_Edge& edge = TopoDS::Edge( S );
- if ( shapeID < ID_Ex00 || shapeID > ID_E11z || edge.IsNull() ) {
- MESSAGE(" shapeID =" << shapeID );
- return false;
- }
- TEdge& tEdge = myEdge[ shapeID - ID_Ex00 ];
- tEdge.myCoordInd = GetCoordIndOnEdge( shapeID );
- TopLoc_Location loc;
- tEdge.myC3d = BRep_Tool::Curve( edge, loc, tEdge.myFirst, tEdge.myLast );
- if ( !IsForwardEdge( edge, theShapeIDMap ))
- Swap( tEdge.myFirst, tEdge.myLast );
- tEdge.myTrsf = loc;
- break;
- }
- case TopAbs_FACE: {
-
- const TopoDS_Face& face = TopoDS::Face( S );
- if ( shapeID < ID_Fxy0 || shapeID > ID_F1yz || face.IsNull() ) {
- MESSAGE(" shapeID =" << shapeID );
- return false;
- }
- TFace& tFace = myFace[ shapeID - ID_Fxy0 ];
- // pcurves
- vector< int > edgeIdVec(4, -1);
- GetFaceEdgesIDs( shapeID, edgeIdVec );
- for ( int iE = 0; iE < 4; iE++ ) // loop on 4 edges
- {
- const TopoDS_Edge& edge = TopoDS::Edge( theShapeIDMap( edgeIdVec[ iE ]));
- tFace.myCoordInd[ iE ] = GetCoordIndOnEdge( edgeIdVec[ iE ] );
- tFace.myC2d[ iE ] =
- BRep_Tool::CurveOnSurface( edge, face, tFace.myFirst[iE], tFace.myLast[iE] );
- if ( !IsForwardEdge( edge, theShapeIDMap ))
- Swap( tFace.myFirst[ iE ], tFace.myLast[ iE ] );
- }
- // 2d corners
- tFace.myCorner[ 0 ] = tFace.myC2d[ 0 ]->Value( tFace.myFirst[0] ).XY();
- tFace.myCorner[ 1 ] = tFace.myC2d[ 0 ]->Value( tFace.myLast[0] ).XY();
- tFace.myCorner[ 2 ] = tFace.myC2d[ 1 ]->Value( tFace.myLast[1] ).XY();
- tFace.myCorner[ 3 ] = tFace.myC2d[ 1 ]->Value( tFace.myFirst[1] ).XY();
- // sufrace
- TopLoc_Location loc;
- tFace.myS = BRep_Tool::Surface( face, loc );
- tFace.myTrsf = loc;
- break;
- }
- default: break;
- }
- } // loop on shapes in theShapeIDMap
-
- return true;
-}
-
-//=======================================================================
-//function : GetFaceEdgesIDs
-//purpose : return edges IDs in the order u0, u1, 0v, 1v
-// u0 means "|| u, v == 0"
-//=======================================================================
-
-void TBlock::GetFaceEdgesIDs (const int faceID, vector< int >& edgeVec )
-{
- switch ( faceID ) {
- case ID_Fxy0:
- edgeVec[ 0 ] = ID_Ex00;
- edgeVec[ 1 ] = ID_Ex10;
- edgeVec[ 2 ] = ID_E0y0;
- edgeVec[ 3 ] = ID_E1y0;
- break;
- case ID_Fxy1:
- edgeVec[ 0 ] = ID_Ex01;
- edgeVec[ 1 ] = ID_Ex11;
- edgeVec[ 2 ] = ID_E0y1;
- edgeVec[ 3 ] = ID_E1y1;
- break;
- case ID_Fx0z:
- edgeVec[ 0 ] = ID_Ex00;
- edgeVec[ 1 ] = ID_Ex01;
- edgeVec[ 2 ] = ID_E00z;
- edgeVec[ 3 ] = ID_E10z;
- break;
- case ID_Fx1z:
- edgeVec[ 0 ] = ID_Ex10;
- edgeVec[ 1 ] = ID_Ex11;
- edgeVec[ 2 ] = ID_E01z;
- edgeVec[ 3 ] = ID_E11z;
- break;
- case ID_F0yz:
- edgeVec[ 0 ] = ID_E0y0;
- edgeVec[ 1 ] = ID_E0y1;
- edgeVec[ 2 ] = ID_E00z;
- edgeVec[ 3 ] = ID_E01z;
- break;
- case ID_F1yz:
- edgeVec[ 0 ] = ID_E1y0;
- edgeVec[ 1 ] = ID_E1y1;
- edgeVec[ 2 ] = ID_E10z;
- edgeVec[ 3 ] = ID_E11z;
- break;
- default:
- MESSAGE(" GetFaceEdgesIDs(), wrong face ID: " << faceID );
- }
-}