TopoDS_Shape aWhere = theShapeWhere->GetValue();
TopoDS_Shape aWhat = theShapeWhat->GetValue();
- TopoDS_Shape aPntShape;
- TopoDS_Vertex aVertex;
if (aWhere.IsNull() || aWhat.IsNull()) {
SetErrorCode("Error: aWhere and aWhat TopoDS_Shape are Null.");
return NULL;
}
- Handle(GEOM_Function) aWhereFunction = theShapeWhere->GetLastFunction();
- if (aWhereFunction.IsNull()) {
- SetErrorCode("Error: aWhereFunction is Null.");
- return NULL;
- }
-
- TopTools_IndexedMapOfShape aWhereIndices;
- TopExp::MapShapes(aWhere, aWhereIndices);
-
- TopAbs_ShapeEnum iType = TopAbs_SOLID;
- Standard_Real dl_l = 1e-3;
- Standard_Real min_l, Tol_0D, Tol_1D, Tol_2D, Tol_3D, Tol_Mass;
- Standard_Real aXmin, aYmin, aZmin, aXmax, aYmax, aZmax;
- Bnd_Box BoundingBox;
- gp_Pnt aPnt, aPnt_aWhat, tab_Pnt[2];
- GProp_GProps aProps;
-
- // Find the iType of the aWhat shape
- iType = GEOMUtils::GetTypeOfSimplePart(aWhat);
- if (iType == TopAbs_SHAPE) {
- SetErrorCode("Error: An attempt to extract a shape of not supported type.");
- return NULL;
- }
+ // Compute confusion tolerance.
+ Standard_Real aTolConf = Precision::Confusion();
+ Standard_Integer i;
- TopExp_Explorer Exp_aWhat ( aWhat, iType );
- TopExp_Explorer Exp_aWhere ( aWhere, iType );
- TopExp_Explorer Exp_Edge ( aWhere, TopAbs_EDGE );
+ for (i = 0; i < 2; ++i) {
+ TopExp_Explorer anExp(i == 0 ? aWhere : aWhat, TopAbs_VERTEX);
- // Find the shortest edge in theShapeWhere shape
- BRepBndLib::Add(aWhere, BoundingBox);
- BoundingBox.Get(aXmin, aYmin, aZmin, aXmax, aYmax, aZmax);
- min_l = fabs(aXmax - aXmin);
- if( min_l < fabs(aYmax - aYmin) ) min_l = fabs(aYmax - aYmin);
- if( min_l < fabs(aZmax - aZmin) ) min_l = fabs(aZmax - aZmin);
+ for (; anExp.More(); anExp.Next()) {
+ const TopoDS_Vertex aVtx = TopoDS::Vertex(anExp.Current());
+ const Standard_Real aTolVtx = BRep_Tool::Tolerance(aVtx);
- // Mantis issue 0020908 BEGIN
- if (!Exp_Edge.More()) {
- min_l = Precision::Confusion();
- }
- // Mantis issue 0020908 END
- for ( Standard_Integer nbEdge = 0; Exp_Edge.More(); Exp_Edge.Next(), nbEdge++ ) {
- TopExp_Explorer Exp_Vertex( Exp_Edge.Current(), TopAbs_VERTEX);
- for ( Standard_Integer nbVertex = 0; Exp_Vertex.More(); Exp_Vertex.Next(), nbVertex++ ) {
- aPnt = BRep_Tool::Pnt( TopoDS::Vertex( Exp_Vertex.Current() ) );
- tab_Pnt[nbVertex] = aPnt;
- }
- if ( ! tab_Pnt[0].IsEqual(tab_Pnt[1], dl_l) ) {
- BRepGProp::LinearProperties(Exp_Edge.Current(), aProps);
- if ( aProps.Mass() < min_l ) min_l = aProps.Mass();
+ if (aTolVtx > aTolConf) {
+ aTolConf = aTolVtx;
+ }
}
}
- min_l *= dl_l;
- // Compute tolerances
- Tol_0D = dl_l;
- Tol_1D = dl_l * min_l;
- Tol_2D = dl_l * ( min_l * min_l) * ( 2. + dl_l);
- Tol_3D = dl_l * ( min_l * min_l * min_l ) * ( 3. + (3 * dl_l) + (dl_l * dl_l) );
-
- if (Tol_0D < Precision::Confusion()) Tol_0D = Precision::Confusion();
- if (Tol_1D < Precision::Confusion()) Tol_1D = Precision::Confusion();
- if (Tol_2D < Precision::Confusion()) Tol_2D = Precision::Confusion();
- if (Tol_3D < Precision::Confusion()) Tol_3D = Precision::Confusion();
+ // Compute mass tolerance.
+ Bnd_Box aBoundingBox;
+ Standard_Real aXmin, aYmin, aZmin, aXmax, aYmax, aZmax;
+ Standard_Real aMassTol;
- Tol_Mass = Tol_3D;
- if ( iType == TopAbs_VERTEX ) Tol_Mass = Tol_0D;
- else if ( iType == TopAbs_EDGE ) Tol_Mass = Tol_1D;
- else if ( iType == TopAbs_FACE ) Tol_Mass = Tol_2D;
+ BRepBndLib::Add(aWhere, aBoundingBox);
+ BRepBndLib::Add(aWhat, aBoundingBox);
+ aBoundingBox.Get(aXmin, aYmin, aZmin, aXmax, aYmax, aZmax);
+ aMassTol = Max(aXmax - aXmin, aYmax - aYmin);
+ aMassTol = Max(aMassTol, aZmax - aZmin);
+ aMassTol *= aTolConf;
// Searching for the sub-shapes inside the ShapeWhere shape
GEOMAlgo_GetInPlace aGIP;
- aGIP.SetTolerance(Tol_1D);
- aGIP.SetTolMass(Tol_Mass);
- aGIP.SetTolCG(Tol_1D);
+ aGIP.SetTolerance(aTolConf);
+ aGIP.SetTolMass(aMassTol);
+ aGIP.SetTolCG(aTolConf);
aGIP.SetArgument(aWhat);
aGIP.SetShapeWhere(aWhere);
return NULL;
}
- // aGIP.IsFound() returns true only when the whole theShapeWhat
- // is found (as one shape or several parts). But we are also interested
- // in the partial result, that is why this check is commented.
- //if (!aGIP.IsFound()) {
- // SetErrorCode(NOT_FOUND_ANY);
- // return NULL;
- //}
-
// Add direct result.
- TopTools_ListOfShape aLSA;
- const TopoDS_Shape &aShapeResult = aGIP.Result();
- TopTools_MapOfShape aMFence;
+ TopTools_ListOfShape aLSA;
+ const TopoDS_Shape &aShapeResult = aGIP.Result();
+ TopTools_MapOfShape aMFence;
+ TopTools_IndexedMapOfShape aWhereIndices;
+
+ TopExp::MapShapes(aWhere, aWhereIndices);
if (aShapeResult.IsNull() == Standard_False) {
TopoDS_Iterator anIt(aShapeResult);
