#include "SMESH_Block.hxx"
+#include <BRepAdaptor_Curve.hxx>
+#include <BRepAdaptor_Curve2d.hxx>
+#include <BRepAdaptor_Surface.hxx>
#include <BRepTools.hxx>
#include <BRepTools_WireExplorer.hxx>
+#include <BRep_Builder.hxx>
#include <BRep_Tool.hxx>
#include <Extrema_ExtPC.hxx>
#include <Extrema_POnCurv.hxx>
-#include <GeomAdaptor_Curve.hxx>
-#include <TopAbs_ShapeEnum.hxx>
+#include <Geom2d_Curve.hxx>
#include <TopExp_Explorer.hxx>
-#include <TopLoc_Location.hxx>
#include <TopTools_IndexedDataMapOfShapeListOfShape.hxx>
#include <TopTools_ListIteratorOfListOfShape.hxx>
#include <TopTools_ListOfShape.hxx>
#include <TopoDS.hxx>
+#include <TopoDS_Compound.hxx>
#include <TopoDS_Face.hxx>
#include <TopoDS_Iterator.hxx>
#include <TopoDS_Wire.hxx>
using namespace std;
-#define SQRT_FUNC 1
+#define SQRT_FUNC 0
+
+//================================================================================
+/*!
+ * \brief Set edge data
+ * \param edgeID - block subshape ID
+ * \param curve - edge geometry
+ * \param isForward - is curve orientation coincides with edge orientation in the block
+ */
+//================================================================================
+
+void SMESH_Block::TEdge::Set( const int edgeID, Adaptor3d_Curve* curve, const bool isForward )
+{
+ myCoordInd = SMESH_Block::GetCoordIndOnEdge( edgeID );
+ if ( myC3d ) delete myC3d;
+ myC3d = curve;
+ myFirst = curve->FirstParameter();
+ myLast = curve->LastParameter();
+ if ( !isForward )
+ std::swap( myFirst, myLast );
+}
+
+//================================================================================
+/*!
+ * \brief Set coordinates of nodes at edge ends to work with mesh block
+ * \param edgeID - block subshape ID
+ * \param node1 - coordinates of node with lower ID
+ * \param node2 - coordinates of node with upper ID
+ */
+//================================================================================
+
+void SMESH_Block::TEdge::Set( const int edgeID, const gp_XYZ& node1, const gp_XYZ& node2 )
+{
+ myCoordInd = SMESH_Block::GetCoordIndOnEdge( edgeID );
+ myNodes[ 0 ] = node1;
+ myNodes[ 1 ] = node2;
+
+ if ( myC3d ) delete myC3d;
+ myC3d = 0;
+}
//=======================================================================
//function : SMESH_Block::TEdge::GetU
double SMESH_Block::TEdge::GetU( const gp_XYZ& theParams ) const
{
double u = theParams.Coord( myCoordInd );
- if ( myC3d.IsNull() ) // if mesh block
+ if ( !myC3d ) // if mesh block
return u;
return ( 1 - u ) * myFirst + u * myLast;
}
gp_XYZ SMESH_Block::TEdge::Point( const gp_XYZ& theParams ) const
{
double u = GetU( theParams );
+ if ( myC3d ) return myC3d->Value( u ).XYZ();
+ // mesh block
+ return myNodes[0] * ( 1 - u ) + myNodes[1] * u;
+}
- if ( myC3d.IsNull() ) // if mesh block
- return myNodes[0] * ( 1 - u ) + myNodes[1] * u;
+//================================================================================
+/*!
+ * \brief Destructor
+ */
+//================================================================================
- gp_XYZ p = myC3d->Value( u ).XYZ();
- if ( myTrsf.Form() != gp_Identity )
- myTrsf.Transforms( p );
- return p;
+SMESH_Block::TEdge::~TEdge()
+{
+ if ( myC3d ) delete myC3d;
+}
+
+//================================================================================
+/*!
+ * \brief Set face data
+ * \param faceID - block subshape ID
+ * \param S - face surface geometry
+ * \param c2d - 4 pcurves in the order as returned by GetFaceEdgesIDs(faceID)
+ * \param isForward - orientation of pcurves comparing with block edge direction
+ */
+//================================================================================
+
+void SMESH_Block::TFace::Set( const int faceID,
+ Adaptor3d_Surface* S,
+ Adaptor2d_Curve2d* c2D[4],
+ const bool isForward[4] )
+{
+ if ( myS ) delete myS;
+ myS = S;
+ // pcurves
+ vector< int > edgeIdVec;
+ GetFaceEdgesIDs( faceID, edgeIdVec );
+ for ( int iE = 0; iE < edgeIdVec.size(); iE++ ) // loop on 4 edges
+ {
+ myCoordInd[ iE ] = GetCoordIndOnEdge( edgeIdVec[ iE ] );
+ if ( myC2d[ iE ]) delete myC2d[ iE ];
+ myC2d[ iE ] = c2D[ iE ];
+ myFirst[ iE ] = myC2d[ iE ]->FirstParameter();
+ myLast [ iE ] = myC2d[ iE ]->LastParameter();
+ if ( !isForward[ iE ])
+ std::swap( myFirst[ iE ], myLast[ iE ] );
+ }
+ // 2d corners
+ myCorner[ 0 ] = myC2d[ 0 ]->Value( myFirst[0] ).XY();
+ myCorner[ 1 ] = myC2d[ 0 ]->Value( myLast[0] ).XY();
+ myCorner[ 2 ] = myC2d[ 1 ]->Value( myLast[1] ).XY();
+ myCorner[ 3 ] = myC2d[ 1 ]->Value( myFirst[1] ).XY();
+}
+
+//================================================================================
+/*!
+ * \brief Set face data to work with mesh block
+ * \param faceID - block subshape ID
+ * \param edgeU0 - filled data of edge u0 = GetFaceEdgesIDs(faceID)[ 0 ]
+ * \param edgeU1 - filled data of edge u1 = GetFaceEdgesIDs(faceID)[ 1 ]
+ */
+//================================================================================
+
+void SMESH_Block::TFace::Set( const int faceID, const TEdge& edgeU0, const TEdge& edgeU1 )
+{
+ vector< int > edgeIdVec;
+ GetFaceEdgesIDs( faceID, edgeIdVec );
+ myNodes[ 0 ] = edgeU0.NodeXYZ( 1 );
+ myNodes[ 1 ] = edgeU0.NodeXYZ( 0 );
+ myNodes[ 2 ] = edgeU1.NodeXYZ( 0 );
+ myNodes[ 3 ] = edgeU1.NodeXYZ( 1 );
+ myCoordInd[ 0 ] = GetCoordIndOnEdge( edgeIdVec[ 0 ] );
+ myCoordInd[ 1 ] = GetCoordIndOnEdge( edgeIdVec[ 1 ] );
+ myCoordInd[ 2 ] = GetCoordIndOnEdge( edgeIdVec[ 2 ] );
+ myCoordInd[ 3 ] = GetCoordIndOnEdge( edgeIdVec[ 3 ] );
+ if ( myS ) delete myS;
+ myS = 0;
+}
+
+//================================================================================
+/*!
+ * \brief Destructor
+ */
+//================================================================================
+
+SMESH_Block::TFace::~TFace()
+{
+ if ( myS ) delete myS;
+ for ( int i = 0 ; i < 4; ++i )
+ if ( myC2d[ i ]) delete myC2d[ i ];
}
//=======================================================================
gp_XYZ SMESH_Block::TFace::Point( const gp_XYZ& theParams ) const
{
gp_XYZ p(0.,0.,0.);
- if ( myS.IsNull() ) // if mesh block
+ if ( !myS ) // if mesh block
{
for ( int iE = 0; iE < 4; iE++ ) // loop on 4 edges
{
{
gp_XY uv = GetUV( theParams );
p = myS->Value( uv.X(), uv.Y() ).XYZ();
- if ( myTrsf.Form() != gp_Identity )
- myTrsf.Transforms( p );
}
return p;
}
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;
+ // add point on a shape
+ if ( fabs( k ) > DBL_MIN )
+ {
+ 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;
}
//purpose :
//=======================================================================
+//#define DEBUG_PARAM_COMPUTE
+
Standard_Boolean SMESH_Block::Values(const math_Vector& theXYZ,
math_Vector& theFxyz,
math_Matrix& theDf)
theDf( 1,3 ) = myValues[ 3 ];
return true;
}
-
+#ifdef DEBUG_PARAM_COMPUTE
+ cout << "PARAM GUESS: " << params.X() << " "<< params.Y() << " "<< params.X() << endl;
+#endif
ShellPoint( params, P );
//myNbIterations++; // how many time call ShellPoint()
- gp_Vec dP( P - myPoint );
+ gp_Vec dP( myPoint, P );
theFxyz(1) = SQRT_FUNC ? dP.SquareMagnitude() : dP.Magnitude();
if ( theFxyz(1) < 1e-6 ) {
myParam = params;
if ( theFxyz(1) < myValues[0] ) // a better guess
{
// 3 partial derivatives
- gp_Vec drv[ 3 ];
+ gp_Vec drv[ 3 ]; // where we move with a small step in each direction
for ( int iP = 1; iP <= 3; iP++ ) {
+ if ( iP - 1 == myFaceIndex ) {
+ drv[ iP - 1 ] = gp_Vec(0,0,0);
+ continue;
+ }
gp_XYZ Pi;
- params.SetCoord( iP, theXYZ( iP ) + 0.001 );
+ bool onEdge = ( theXYZ( iP ) + 0.001 > 1. );
+ if ( onEdge )
+ params.SetCoord( iP, theXYZ( iP ) - 0.001 );
+ else
+ params.SetCoord( iP, theXYZ( iP ) + 0.001 );
ShellPoint( params, Pi );
params.SetCoord( iP, theXYZ( iP ) ); // restore params
gp_Vec dPi ( P, Pi );
+ if ( onEdge ) dPi *= -1.;
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 {
+ theDf( 1, iP + 1 ) = dP * drv[iP];
+ // Distance from P to plane passing through myPoint and defined
+ // by the 2 other derivative directions:
// 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;
- }
- }
+// 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;
+// }
}
+#ifdef DEBUG_PARAM_COMPUTE
+ cout << "F = " << theFxyz(1) <<
+ " DRV: " << theDf(1,1) << " " << theDf(1,2) << " " << theDf(1,3) << endl;
+#endif
//myNbIterations +=3; // how many time call ShellPoint()
// store better values
return true;
if ( IsEdgeID( theShapeID )) {
- TEdge& e = myEdge[ theShapeID - ID_Ex00 ];
- GeomAdaptor_Curve curve( e.myC3d );
- double f = Min( e.myFirst, e.myLast ), l = Max( e.myFirst, e.myLast );
- Extrema_ExtPC anExtPC( thePoint, curve, f, l );
+ TEdge& e = myEdge[ theShapeID - ID_FirstE ];
+ Adaptor3d_Curve* curve = e.GetCurve();
+ Extrema_ExtPC anExtPC( thePoint, *curve, curve->FirstParameter(), curve->LastParameter() );
int i, nb = anExtPC.IsDone() ? anExtPC.NbExt() : 0;
for ( i = 1; i <= nb; i++ ) {
if ( anExtPC.IsMin( i ))
double par = 0;
if ( len2 > zero ) {
par = v0P.Dot( v01 ) / len2;
- if ( par < 0 || par > 1 ) {
+ if ( par < 0 || par > 1 ) { // projection falls out of line ends => needGrid
needGrid = true;
break;
}
start( 3 ) = bestParam->Z();
}
- int myFaceIndex = -1;
+ myFaceIndex = -1;
if ( isOnFace ) {
// put a point on the face
for ( int iCoord = 0; iCoord < 3; iCoord++ )
math_Vector tol ( 1, 3, 1e-4 );
math_FunctionSetRoot paramSearch( *this, tol );
+#ifdef DEBUG_PARAM_COMPUTE
+ cout << " #### POINT " <<thePoint.X()<<" "<<thePoint.Y()<<" "<<thePoint.Z()<<" ####"<< endl;
+ cout << " ** START ** " << start(1) << " " << start(2) << " " << start(3) << " " << endl;
+#endif
int nbLoops = 0;
while ( myValues[0] > 1e-1 && nbLoops++ < 10 ) {
- paramSearch.Perform ( *this, start, low, up );
+ paramSearch.Perform ( *static_cast<math_FunctionSetWithDerivatives*>(this),
+ start, low, up );
if ( !paramSearch.IsDone() ) {
//MESSAGE( " !paramSearch.IsDone() " );
}
start( 3 ) = myParam.Z();
//MESSAGE( "Distance: " << ( SQRT_FUNC ? sqrt(myValues[0]) : myValues[0] ));
}
+#ifdef DEBUG_PARAM_COMPUTE
+ cout << "-------SOLUTION-------: " << endl
+ << myParam.X() << " " << myParam.Y() << " " << myParam.Z() << endl
+ << " ------ DIST :" << myValues[0] << endl;
+#endif
// MESSAGE( endl << myParam.X() << " " << myParam.Y() << " " << myParam.Z() << endl);
// mySumDist += myValues[0];
// MESSAGE( " TOTAL NB ITERATIONS: " << myNbIterations <<
// " DIST: " << ( SQRT_FUNC ? sqrt(mySumDist) : mySumDist ));
+ if ( myFaceIndex >= 0 )
+ myParam.SetCoord( myFaceIndex + 1, myFaceParam );
theParams = myParam;
GetEdgeVertexIDs( theEdgeID, vertexVec );
VertexParameters( vertexVec[0], theParams );
TEdge& e = myEdge[ theEdgeID - ID_Ex00 ];
- double param = ( theU - e.myFirst ) / ( e.myLast - e.myFirst );
- theParams.SetCoord( e.myCoordInd, param );
+ double param = ( theU - e.EndParam(0) ) / ( e.EndParam(1) - e.EndParam(0) );
+ theParams.SetCoord( e.CoordInd(), param );
return true;
}
return false;
return id + 1; // shape ids start at 1
}
-
//=======================================================================
-//function : getOrderedEdges
+//function : GetOrderedEdges
//purpose : return nb wires and a list of oredered edges
//=======================================================================
-static int getOrderedEdges (const TopoDS_Face& theFace,
- const TopoDS_Vertex& theFirstVertex,
- list< TopoDS_Edge >& theEdges,
- list< int > & theNbVertexInWires)
+int SMESH_Block::GetOrderedEdges (const TopoDS_Face& theFace,
+ TopoDS_Vertex theFirstVertex,
+ list< TopoDS_Edge >& theEdges,
+ list< int > & theNbVertexInWires)
{
// put wires in a list, so that an outer wire comes first
list<TopoDS_Wire> aWireList;
isFirst = ( p2.SquareDistance( pf ) < p2.SquareDistance( pl ));
if ( isNext ? isFirst : !isFirst )
edge.Reverse();
+ // to make a seam go first
+ if ( theFirstVertex.IsNull() )
+ theFirstVertex = TopExp::FirstVertex( edge, true );
}
}
// rotate theEdges until it begins from theFirstVertex
- if ( ! theFirstVertex.IsNull() )
- while ( !theFirstVertex.IsSame( TopExp::FirstVertex( theEdges.front(), true )))
+ if ( ! theFirstVertex.IsNull() ) {
+ TopoDS_Vertex vv[2];
+ TopExp::Vertices( theEdges.front(), vv[0], vv[1], true );
+ // on closed face, make seam edge the first in the list
+ while ( !vv[0].IsSame( theFirstVertex ) || vv[0].IsSame( vv[1] ))
{
theEdges.splice(theEdges.end(), theEdges,
- theEdges.begin(), ++ theEdges.begin());
- if ( iE++ > theNbVertexInWires.back() )
+ theEdges.begin(), ++theEdges.begin());
+ TopExp::Vertices( theEdges.front(), vv[0], vv[1], true );
+ if ( iE++ > theNbVertexInWires.back() ) {
+#ifdef _DEBUG_
+ gp_Pnt p = BRep_Tool::Pnt( theFirstVertex );
+ cout << " : Warning : vertex "<< theFirstVertex.TShape().operator->()
+ << " ( " << p.X() << " " << p.Y() << " " << p.Z() << " )"
+ << " not found in outer wire of face "<< theFace.TShape().operator->()
+ << " with vertices: " << endl;
+ wExp.Init( *wlIt, theFace );
+ for ( int i = 0; wExp.More(); wExp.Next(), i++ )
+ {
+ TopoDS_Edge edge = wExp.Current();
+ edge = TopoDS::Edge( edge.Oriented( wExp.Orientation() ));
+ TopoDS_Vertex v = TopExp::FirstVertex( edge, true );
+ gp_Pnt p = BRep_Tool::Pnt( v );
+ cout << i << " " << v.TShape().operator->() << " "
+ << p.X() << " " << p.Y() << " " << p.Z() << " " << endl;
+ }
+#endif
break; // break infinite loop
+ }
}
- }
+ }
+ } // end outer wire
}
return aWireList.size();
}
+//================================================================================
+/*!
+ * \brief Call it after geometry initialisation
+ */
+//================================================================================
+
+void SMESH_Block::init()
+{
+ myNbIterations = 0;
+ mySumDist = 0;
+ myGridComputed = false;
+}
//=======================================================================
//function : LoadMeshBlock
vector<const SMDS_MeshNode*>& theOrderedNodes)
{
MESSAGE(" ::LoadMeshBlock()");
-
- myNbIterations = 0;
- mySumDist = 0;
- myGridComputed = false;
+ init();
SMDS_VolumeTool vTool;
if (!vTool.Set( theVolume ) || vTool.NbNodes() != 8 ||
theOrderedNodes[ 7 ] = nn[ V111 ];
// fill edges
- myEdge[ ID_Ex00 - ID_Ex00 ].myNodes[ 0 ] = myPnt[ ID_V000 - 1 ];
- myEdge[ ID_Ex00 - ID_Ex00 ].myNodes[ 1 ] = myPnt[ ID_V100 - 1 ];
-
- myEdge[ ID_Ex10 - ID_Ex00 ].myNodes[ 0 ] = myPnt[ ID_V010 - 1 ];
- myEdge[ ID_Ex10 - ID_Ex00 ].myNodes[ 1 ] = myPnt[ ID_V110 - 1 ];
-
- myEdge[ ID_Ex01 - ID_Ex00 ].myNodes[ 0 ] = myPnt[ ID_V001 - 1 ];
- myEdge[ ID_Ex01 - ID_Ex00 ].myNodes[ 1 ] = myPnt[ ID_V101 - 1 ];
-
- myEdge[ ID_Ex11 - ID_Ex00 ].myNodes[ 0 ] = myPnt[ ID_V011 - 1 ];
- myEdge[ ID_Ex11 - ID_Ex00 ].myNodes[ 1 ] = myPnt[ ID_V111 - 1 ];
-
- myEdge[ ID_E0y0 - ID_Ex00 ].myNodes[ 0 ] = myPnt[ ID_V000 - 1 ];
- myEdge[ ID_E0y0 - ID_Ex00 ].myNodes[ 1 ] = myPnt[ ID_V010 - 1 ];
-
- myEdge[ ID_E1y0 - ID_Ex00 ].myNodes[ 0 ] = myPnt[ ID_V100 - 1 ];
- myEdge[ ID_E1y0 - ID_Ex00 ].myNodes[ 1 ] = myPnt[ ID_V110 - 1 ];
-
- myEdge[ ID_E0y1 - ID_Ex00 ].myNodes[ 0 ] = myPnt[ ID_V001 - 1 ];
- myEdge[ ID_E0y1 - ID_Ex00 ].myNodes[ 1 ] = myPnt[ ID_V011 - 1 ];
-
- myEdge[ ID_E1y1 - ID_Ex00 ].myNodes[ 0 ] = myPnt[ ID_V101 - 1 ];
- myEdge[ ID_E1y1 - ID_Ex00 ].myNodes[ 1 ] = myPnt[ ID_V111 - 1 ];
-
- myEdge[ ID_E00z - ID_Ex00 ].myNodes[ 0 ] = myPnt[ ID_V000 - 1 ];
- myEdge[ ID_E00z - ID_Ex00 ].myNodes[ 1 ] = myPnt[ ID_V001 - 1 ];
-
- myEdge[ ID_E10z - ID_Ex00 ].myNodes[ 0 ] = myPnt[ ID_V100 - 1 ];
- myEdge[ ID_E10z - ID_Ex00 ].myNodes[ 1 ] = myPnt[ ID_V101 - 1 ];
-
- myEdge[ ID_E01z - ID_Ex00 ].myNodes[ 0 ] = myPnt[ ID_V010 - 1 ];
- myEdge[ ID_E01z - ID_Ex00 ].myNodes[ 1 ] = myPnt[ ID_V011 - 1 ];
-
- myEdge[ ID_E11z - ID_Ex00 ].myNodes[ 0 ] = myPnt[ ID_V110 - 1 ];
- myEdge[ ID_E11z - ID_Ex00 ].myNodes[ 1 ] = myPnt[ ID_V111 - 1 ];
-
- for ( iE = ID_Ex00; iE <= ID_E11z; ++iE )
- myEdge[ iE - ID_Ex00 ].myCoordInd = GetCoordIndOnEdge( iE );
+ vector< int > vertexVec;
+ for ( iE = 0; iE < NbEdges(); ++iE ) {
+ GetEdgeVertexIDs(( iE + ID_FirstE ), vertexVec );
+ myEdge[ iE ].Set(( iE + ID_FirstE ),
+ myPnt[ vertexVec[0] - 1 ],
+ myPnt[ vertexVec[1] - 1 ]);
+ }
- // fill faces corners
+ // fill faces' corners
for ( iF = ID_Fxy0; iF < ID_Shell; ++iF )
{
- TFace& tFace = myFace[ iF - ID_Fxy0 ];
+ TFace& tFace = myFace[ iF - ID_FirstF ];
vector< int > edgeIdVec(4, -1);
GetFaceEdgesIDs( iF, edgeIdVec );
- tFace.myNodes[ 0 ] = myEdge[ edgeIdVec [ 0 ] - ID_Ex00 ].myNodes[ 1 ];
- tFace.myNodes[ 1 ] = myEdge[ edgeIdVec [ 0 ] - ID_Ex00 ].myNodes[ 0 ];
- tFace.myNodes[ 2 ] = myEdge[ edgeIdVec [ 1 ] - ID_Ex00 ].myNodes[ 0 ];
- tFace.myNodes[ 3 ] = myEdge[ edgeIdVec [ 1 ] - ID_Ex00 ].myNodes[ 1 ];
- tFace.myCoordInd[ 0 ] = GetCoordIndOnEdge( edgeIdVec[ 0 ] );
- tFace.myCoordInd[ 1 ] = GetCoordIndOnEdge( edgeIdVec[ 1 ] );
- tFace.myCoordInd[ 2 ] = GetCoordIndOnEdge( edgeIdVec[ 2 ] );
- tFace.myCoordInd[ 3 ] = GetCoordIndOnEdge( edgeIdVec[ 3 ] );
+ tFace.Set( iF, myEdge[ edgeIdVec [ 0 ]], myEdge[ edgeIdVec [ 1 ]]);
}
return true;
//=======================================================================
//function : LoadBlockShapes
-//purpose : add sub-shapes of theBlock to theShapeIDMap so that they get
+//purpose : Initialize block geometry with theShell,
+// add sub-shapes of theBlock to theShapeIDMap so that they get
// IDs acoording to enum TShapeID
//=======================================================================
TopTools_IndexedMapOfOrientedShape& theShapeIDMap )
{
MESSAGE(" ::LoadBlockShapes()");
+ return ( FindBlockShapes( theShell, theVertex000, theVertex001, theShapeIDMap ) &&
+ LoadBlockShapes( theShapeIDMap ));
+}
- myShell = theShell;
- myNbIterations = 0;
- mySumDist = 0;
- myGridComputed = false;
+//=======================================================================
+//function : LoadBlockShapes
+//purpose : add sub-shapes of theBlock to theShapeIDMap so that they get
+// IDs acoording to enum TShapeID
+//=======================================================================
+
+bool SMESH_Block::FindBlockShapes(const TopoDS_Shell& theShell,
+ const TopoDS_Vertex& theVertex000,
+ const TopoDS_Vertex& theVertex001,
+ TopTools_IndexedMapOfOrientedShape& theShapeIDMap )
+{
+ MESSAGE(" ::FindBlockShapes()");
// 8 vertices
TopoDS_Shape V000, V100, V010, V110, V001, V101, V011, V111;
const int NB_FACES_BY_VERTEX = 6;
TopTools_IndexedDataMapOfShapeListOfShape vfMap;
- TopExp::MapShapesAndAncestors( myShell, TopAbs_VERTEX, TopAbs_FACE, vfMap );
+ TopExp::MapShapesAndAncestors( theShell, TopAbs_VERTEX, TopAbs_FACE, vfMap );
if ( vfMap.Extent() != 8 ) {
MESSAGE(" Wrong nb of vertices in the block: " << vfMap.Extent() );
return false;
}
// find vertex 001 - the one on the most vertical edge passing through V000
TopTools_IndexedDataMapOfShapeListOfShape veMap;
- TopExp::MapShapesAndAncestors( myShell, TopAbs_VERTEX, TopAbs_EDGE, veMap );
+ TopExp::MapShapesAndAncestors( theShell, TopAbs_VERTEX, TopAbs_EDGE, veMap );
gp_Vec dir001 = gp::DZ();
gp_Pnt p000 = BRep_Tool::Pnt( TopoDS::Vertex( V000 ));
double maxVal = -DBL_MAX;
// find bottom edges and veritices
list< TopoDS_Edge > eList;
list< int > nbVertexInWires;
- getOrderedEdges( TopoDS::Face( Fxy0 ), TopoDS::Vertex( V000 ), eList, nbVertexInWires );
+ GetOrderedEdges( TopoDS::Face( Fxy0 ), TopoDS::Vertex( V000 ), eList, nbVertexInWires );
if ( nbVertexInWires.size() != 1 || nbVertexInWires.front() != 4 ) {
MESSAGE(" LoadBlockShapes() error ");
return false;
// find top edges and veritices
eList.clear();
- getOrderedEdges( TopoDS::Face( Fxy1 ), TopoDS::Vertex( V001 ), eList, nbVertexInWires );
+ GetOrderedEdges( TopoDS::Face( Fxy1 ), TopoDS::Vertex( V001 ), eList, nbVertexInWires );
if ( nbVertexInWires.size() != 1 || nbVertexInWires.front() != 4 ) {
MESSAGE(" LoadBlockShapes() error ");
return false;
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;
+ std::swap( Fx0z, F0yz);
}
// find Fx1z and F1yz faces
if ( V010.IsSame( exp.Current() ) || V011.IsSame( exp.Current() ))
break;
if ( !exp.More() ) {
- TopoDS_Shape f = Fx1z; Fx1z = F1yz; F1yz = f;
+ std::swap( Fx1z, F1yz);
}
// find vertical edges
theShapeIDMap.Add(F0yz);
theShapeIDMap.Add(F1yz);
- theShapeIDMap.Add(myShell);
+ theShapeIDMap.Add(theShell);
- if ( theShapeIDMap.Extent() != 27 ) {
- MESSAGE("LoadBlockShapes() " << theShapeIDMap.Extent() );
- return false;
- }
+ return true;
+}
+
+//================================================================================
+/*!
+ * \brief Initialize block geometry with shapes from theShapeIDMap
+ * \param theShapeIDMap - map of block subshapes
+ * \retval bool - is a success
+ */
+//================================================================================
+
+bool SMESH_Block::LoadBlockShapes(const TopTools_IndexedMapOfOrientedShape& theShapeIDMap)
+{
+ init();
// store shapes geometry
for ( int shapeID = 1; shapeID < theShapeIDMap.Extent(); shapeID++ )
{
case TopAbs_VERTEX: {
- if ( shapeID > ID_V111 ) {
- MESSAGE(" shapeID =" << shapeID );
- return false;
- }
- myPnt[ shapeID - ID_V000 ] =
- BRep_Tool::Pnt( TopoDS::Vertex( S )).XYZ();
+ if ( !IsVertexID( ID_V111 )) return false;
+ myPnt[ shapeID - ID_V000 ] = BRep_Tool::Pnt( TopoDS::Vertex( S )).XYZ();
break;
}
case TopAbs_EDGE: {
+ if ( !IsEdgeID( shapeID )) return false;
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;
+ TEdge& tEdge = myEdge[ shapeID - ID_FirstE ];
+ tEdge.Set( shapeID,
+ new BRepAdaptor_Curve( edge ),
+ IsForwardEdge( edge, theShapeIDMap ));
break;
}
case TopAbs_FACE: {
- const TopoDS_Face& face = TopoDS::Face( S );
- if ( shapeID < ID_Fxy0 || shapeID > ID_F1yz || face.IsNull() ) {
- MESSAGE(" shapeID =" << shapeID );
+ if ( !LoadFace( TopoDS::Face( S ), shapeID, theShapeIDMap ))
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;
return true;
}
+//================================================================================
+/*!
+ * \brief Load face geometry
+ * \param theFace - face
+ * \param theFaceID - face in-block ID
+ * \param theShapeIDMap - map of block subshapes
+ * \retval bool - is a success
+ *
+ * It is enough to compute params or coordinates on the face.
+ * Face subshapes must be loaded into theShapeIDMap before
+ */
+//================================================================================
+
+bool SMESH_Block::LoadFace(const TopoDS_Face& theFace,
+ const int theFaceID,
+ const TopTools_IndexedMapOfOrientedShape& theShapeIDMap)
+{
+ if ( !IsFaceID( theFaceID ) ) return false;
+ // pcurves
+ Adaptor2d_Curve2d* c2d[4];
+ bool isForward[4];
+ vector< int > edgeIdVec;
+ GetFaceEdgesIDs( theFaceID, edgeIdVec );
+ for ( int iE = 0; iE < edgeIdVec.size(); iE++ ) // loop on 4 edges
+ {
+ if ( edgeIdVec[ iE ] > theShapeIDMap.Extent() )
+ return false;
+ const TopoDS_Edge& edge = TopoDS::Edge( theShapeIDMap( edgeIdVec[ iE ]));
+ c2d[ iE ] = new BRepAdaptor_Curve2d( edge, theFace );
+ isForward[ iE ] = IsForwardEdge( edge, theShapeIDMap );
+ }
+ TFace& tFace = myFace[ theFaceID - ID_FirstF ];
+ tFace.Set( theFaceID, new BRepAdaptor_Surface( theFace ), c2d, isForward );
+ return true;
+}
+
+//================================================================================
+/*!
+ * \brief/ Insert theShape into theShapeIDMap with theShapeID
+ * \param theShape - shape to insert
+ * \param theShapeID - shape in-block ID
+ * \param theShapeIDMap - map of block subshapes
+ */
+//================================================================================
+
+bool SMESH_Block::Insert(const TopoDS_Shape& theShape,
+ const int theShapeID,
+ TopTools_IndexedMapOfOrientedShape& theShapeIDMap)
+{
+ if ( !theShape.IsNull() && theShapeID > 0 )
+ {
+ if ( theShapeIDMap.Contains( theShape ))
+ return ( theShapeIDMap.FindIndex( theShape ) == theShapeID );
+
+ if ( theShapeID <= theShapeIDMap.Extent() ) {
+ theShapeIDMap.Substitute( theShapeID, theShape );
+ }
+ else {
+ while ( theShapeIDMap.Extent() < theShapeID - 1 ) {
+ TopoDS_Compound comp;
+ BRep_Builder().MakeCompound( comp );
+ theShapeIDMap.Add( comp );
+ }
+ theShapeIDMap.Add( theShape );
+ }
+ return true;
+ }
+ return false;
+}
+
//=======================================================================
//function : GetFaceEdgesIDs
//purpose : return edges IDs in the order u0, u1, 0v, 1v
vertexVec[ 1 ] = ID_V111;
break;
default:
+ vertexVec.resize(0);
MESSAGE(" GetEdgeVertexIDs(), wrong edge ID: " << edgeID );
}
}
#ifndef SMESH_Block_HeaderFile
#define SMESH_Block_HeaderFile
-#include <Geom2d_Curve.hxx>
-#include <Geom_Curve.hxx>
-#include <Geom_Surface.hxx>
+// #include <Geom2d_Curve.hxx>
+// #include <Geom_Curve.hxx>
+// #include <Geom_Surface.hxx>
+
#include <TopExp.hxx>
#include <TopTools_IndexedMapOfOrientedShape.hxx>
#include <TopoDS_Edge.hxx>
+#include <TopoDS_Face.hxx>
#include <TopoDS_Shell.hxx>
#include <TopoDS_Vertex.hxx>
#include <gp_Pnt.hxx>
#include <ostream>
#include <vector>
+#include <list>
class SMDS_MeshVolume;
class SMDS_MeshNode;
+class Adaptor3d_Surface;
+class Adaptor2d_Curve2d;
+class Adaptor3d_Curve;
// =========================================================
// class calculating coordinates of 3D points by normalized
class SMESH_Block: public math_FunctionSetWithDerivatives
{
public:
- enum TShapeID { // ids of the block sub-shapes
+ enum TShapeID {
+ // ----------------------------
+ // Ids of the block sub-shapes
+ // ----------------------------
ID_NONE = 0,
ID_V000 = 1, ID_V100, ID_V010, ID_V110, ID_V001, ID_V101, ID_V011, ID_V111,
ID_Shell
};
+ enum { // to use TShapeID for indexing certain type subshapes
+
+ ID_FirstV = ID_V000, ID_FirstE = ID_Ex00, ID_FirstF = ID_Fxy0
+ };
- public: // methods about ids of the block sub-shapes
+
+ public:
+ // -------------------------------------------------
+ // Block topology in terms of block sub-shapes' ids
+ // -------------------------------------------------
static int NbVertices() { return 8; }
static int NbEdges() { return 12; }
// DEBUG: dump an id of a block sub-shape
- public: // initialization
+ public:
+ // ---------------
+ // Initialization
+ // ---------------
SMESH_Block (): myNbIterations(0), mySumDist(0.) {}
const TopoDS_Vertex& theVertex000,
const TopoDS_Vertex& theVertex001,
TopTools_IndexedMapOfOrientedShape& theShapeIDMap );
+ // Initialize block geometry with theShell,
// add sub-shapes of theBlock to theShapeIDMap so that they get
// IDs acoording to enum TShapeID
+ bool LoadBlockShapes(const TopTools_IndexedMapOfOrientedShape& theShapeIDMap);
+ // Initialize block geometry with shapes from theShapeIDMap
+
bool LoadMeshBlock(const SMDS_MeshVolume* theVolume,
const int theNode000Index,
const int theNode001Index,
vector<const SMDS_MeshNode*>& theOrderedNodes);
// prepare to work with theVolume and
- // return nodes in the order of TShapeID enum
-
+ // return nodes in theVolume corners in the order of TShapeID enum
+
+ bool LoadFace(const TopoDS_Face& theFace,
+ const int theFaceID,
+ const TopTools_IndexedMapOfOrientedShape& theShapeIDMap);
+ // Load face geometry.
+ // It is enough to compute params or coordinates on the face.
+ // Face subshapes must be loaded into theShapeIDMap before
+
+ static bool Insert(const TopoDS_Shape& theShape,
+ const int theShapeID,
+ TopTools_IndexedMapOfOrientedShape& theShapeIDMap);
+ // Insert theShape into theShapeIDMap with theShapeID,
+ // Not yet set shapes preceding theShapeID are filled with compounds
+ // Return true if theShape was successfully bound to theShapeID
+
+ static bool FindBlockShapes(const TopoDS_Shell& theShell,
+ const TopoDS_Vertex& theVertex000,
+ const TopoDS_Vertex& theVertex001,
+ TopTools_IndexedMapOfOrientedShape& theShapeIDMap );
+ // add sub-shapes of theBlock to theShapeIDMap so that they get
+ // IDs acoording to enum TShapeID
- public: // define coordinates by parameters
+public:
+ // ---------------------------------
+ // Define coordinates by parameters
+ // ---------------------------------
bool VertexPoint( const int theVertexID, gp_XYZ& thePoint ) const {
if ( !IsVertexID( theVertexID )) return false;
- thePoint = myPnt[ theVertexID - ID_V000 ]; return true;
+ thePoint = myPnt[ theVertexID - ID_FirstV ]; return true;
}
// return vertex coordinates, parameters are defined by theVertexID
bool EdgePoint( const int theEdgeID, const gp_XYZ& theParams, gp_XYZ& thePoint ) const {
if ( !IsEdgeID( theEdgeID )) return false;
- thePoint = myEdge[ theEdgeID - ID_Ex00 ].Point( theParams ); return true;
+ thePoint = myEdge[ theEdgeID - ID_FirstE ].Point( theParams ); return true;
}
// return coordinates of a point on edge
+ bool EdgeU( const int theEdgeID, const gp_XYZ& theParams, double& theU ) const {
+ if ( !IsEdgeID( theEdgeID )) return false;
+ theU = myEdge[ theEdgeID - ID_FirstE ].GetU( theParams ); return true;
+ }
+ // return parameter on edge by in-block parameters
+
bool FacePoint( const int theFaceID, const gp_XYZ& theParams, gp_XYZ& thePoint ) const {
if ( !IsFaceID ( theFaceID )) return false;
- thePoint = myFace[ theFaceID - ID_Fxy0 ].Point( theParams ); return true;
+ thePoint = myFace[ theFaceID - ID_FirstF ].Point( theParams ); return true;
}
// return coordinates of a point on face
+ bool FaceUV( const int theFaceID, const gp_XYZ& theParams, gp_XY& theUV ) const {
+ if ( !IsFaceID ( theFaceID )) return false;
+ theUV = myFace[ theFaceID - ID_FirstF ].GetUV( theParams ); return true;
+ }
+ // return UV coordinates on a face by in-block parameters
+
bool ShellPoint( const gp_XYZ& theParams, gp_XYZ& thePoint ) const;
// return coordinates of a point in shell
static bool ShellPoint(const gp_XYZ& theParams,
const vector<gp_XYZ>& thePointOnShape,
gp_XYZ& thePoint );
- // computes coordinates of a point in shell by points on sub-shapes;
+ // computes coordinates of a point in shell by points on sub-shapes
+ // and point parameters.
// thePointOnShape[ subShapeID ] must be a point on a subShape;
// thePointOnShape.size() == ID_Shell, thePointOnShape[0] not used
- public: // define parameters by coordinates
+ public:
+ // ---------------------------------
+ // Define parameters by coordinates
+ // ---------------------------------
bool ComputeParameters (const gp_Pnt& thePoint,
gp_XYZ& theParams,
// return parameters of a point given by theU on edge
- public: // services
+ public:
+ // ---------------
+ // Block geomerty
+ // ---------------
- static bool IsForwardEdge (const TopoDS_Edge & theEdge,
- TopTools_IndexedMapOfOrientedShape& theShapeIDMap) {
+
+
+ public:
+ // ---------
+ // Services
+ // ---------
+
+ static bool IsForwardEdge (const TopoDS_Edge & theEdge,
+ const TopTools_IndexedMapOfOrientedShape& theShapeIDMap) {
int v1ID = theShapeIDMap.FindIndex( TopExp::FirstVertex( theEdge ).Oriented( TopAbs_FORWARD ));
int v2ID = theShapeIDMap.FindIndex( TopExp::LastVertex( theEdge ).Oriented( TopAbs_FORWARD ));
return ( v1ID < v2ID );
}
// Return true if an in-block parameter increases along theEdge curve
- static void Swap(double& a, double& b) { double tmp = a; a = b; b = tmp; }
-
+ static int GetOrderedEdges (const TopoDS_Face& theFace,
+ TopoDS_Vertex theFirstVertex,
+ std::list< TopoDS_Edge >& theEdges,
+ std::list< int > & theNbVertexInWires);
+ // Return nb wires and a list of oredered edges.
+ // It is used to assign indices to subshapes.
+ // theFirstVertex may be NULL.
+ // Always try to set a seam edge first
public:
- // methods of math_FunctionSetWithDerivatives used internally
+ // -----------------------------------------------------------
+ // Methods of math_FunctionSetWithDerivatives used internally
// to define parameters by coordinates
+ // -----------------------------------------------------------
Standard_Integer NbVariables() const;
Standard_Integer NbEquations() const;
Standard_Boolean Value(const math_Vector& X,math_Vector& F) ;
Standard_Boolean Values(const math_Vector& X,math_Vector& F,math_Matrix& D) ;
Standard_Integer GetStateNumber ();
- private:
+ protected:
+
+ /*!
+ * \brief Call it after geometry initialisation
+ */
+ void init();
- struct TEdge {
+ // Note: to compute params of a point on a face, it is enough to set
+ // TFace, TEdge's and points for that face only
+
+ class TEdge {
int myCoordInd;
double myFirst;
double myLast;
- Handle(Geom_Curve) myC3d;
- gp_Trsf myTrsf;
- double GetU( const gp_XYZ& theParams ) const;
- gp_XYZ Point( const gp_XYZ& theParams ) const;
+ Adaptor3d_Curve* myC3d;
// if mesh volume
gp_XYZ myNodes[2];
+ public:
+ void Set( const int edgeID, Adaptor3d_Curve* curve, const bool isForward );
+ void Set( const int edgeID, const gp_XYZ& node1, const gp_XYZ& node2 );
+ Adaptor3d_Curve* GetCurve() const { return myC3d; }
+ double EndParam(int i) const { return i ? myLast : myFirst; }
+ int CoordInd() const { return myCoordInd; }
+ const gp_XYZ& NodeXYZ(int i) const { return i ? myNodes[1] : myNodes[0]; }
+ gp_XYZ Point( const gp_XYZ& theParams ) const; // Return coord by params
+ double GetU( const gp_XYZ& theParams ) const; // Return U by params
+ TEdge(): myC3d(0) {}
+ ~TEdge();
};
- struct TFace {
+ class TFace {
// 4 edges in the order u0, u1, 0v, 1v
int myCoordInd[ 4 ];
double myFirst [ 4 ];
double myLast [ 4 ];
- Handle(Geom2d_Curve) myC2d [ 4 ];
+ Adaptor2d_Curve2d* myC2d [ 4 ];
// 4 corner points in the order 00, 10, 11, 01
gp_XY myCorner [ 4 ];
// surface
- Handle(Geom_Surface) myS;
- gp_Trsf myTrsf;
+ Adaptor3d_Surface* myS;
+ // if mesh volume
+ gp_XYZ myNodes[4];
+ public:
+ void Set( const int faceID, Adaptor3d_Surface* S, // must be in GetFaceEdgesIDs() order:
+ Adaptor2d_Curve2d* c2d[4], const bool isForward[4] );
+ void Set( const int faceID, const TEdge& edgeU0, const TEdge& edgeU1 );
gp_XY GetUV( const gp_XYZ& theParams ) const;
gp_XYZ Point( const gp_XYZ& theParams ) const;
int GetUInd() const { return myCoordInd[ 0 ]; }
int GetVInd() const { return myCoordInd[ 2 ]; }
void GetCoefs( int i, const gp_XYZ& theParams, double& eCoef, double& vCoef ) const;
- // if mesh volume
- gp_XYZ myNodes[4];
+ TFace(): myS(0) { myC2d[0]=myC2d[1]=myC2d[2]=myC2d[3]=0; }
+ ~TFace();
};
- TopoDS_Shell myShell;
// geometry in the order as in TShapeID:
// 8 vertices
gp_XYZ myPnt[ 8 ];
gp_XYZ myPoint; // the given point
gp_XYZ myParam; // the best parameters guess
- double myValues[ 4 ]; // values computed at myParam
+ double myValues[ 4 ]; // values computed at myParam: function value and 3 derivatives
typedef pair<gp_XYZ,gp_XYZ> TxyzPair;
- TxyzPair my3x3x3GridNodes[ 27 ];
+ TxyzPair my3x3x3GridNodes[ 27 ]; // to compute the first param guess
bool myGridComputed;
};
