#include <Approx_CurvilinearParameter.hxx>
#include <Geom_BSplineSurface.hxx>
+#include <Poly_Triangulation.hxx>
+#include <TShort_HArray1OfShortReal.hxx>
+#include <GeomLProp_SLProps.hxx>
+#include <Poly_PolygonOnTriangulation.hxx>
// TODO - not thread-safe static variables
static Standard_Real thePrecision = Precision::Confusion();
Standard_Real First, Last;
BRep_Builder B;
- Standard_Boolean is_closed ;
- is_closed = AnEdge.Closed() ;
-
B.UpdateEdge(AnEdge,C3d,LocalLoc,0.0e0);
BRep_Tool::Range(AnEdge, S, LC, First, Last);
B.Range(AnEdge, First, Last); //Do not forget 3D range.(PRO6412)
- TopoDS_Edge E = AnEdge ;
- E.Closed(is_closed) ;
-
}
else {
//
max_deviation = Max( tolerance, Tolerance );
if (NewCurvePtr.IsNull())
return Standard_False;
- Standard_Boolean is_closed ;
- is_closed = AnEdge.Closed() ;
B.UpdateEdge(TopoDS::Edge(AnEdge),
NewCurvePtr,
L[0],
max_deviation) ;
- TopoDS_Edge E = AnEdge ;
- E.Closed(is_closed) ;
if (jj == 1 ) {
//
// if there is only one curve on surface attached to the edge
gp_Pnt Pc3d = HC->Value(u);
gp_Pnt2d p2d = pc->Value(u);
gp_Pnt Pcons = ElSLib::Value(p2d.X(),p2d.Y(),pln);
+ Standard_Real eps = Max(Pc3d.XYZ().SquareModulus(), Pcons.XYZ().SquareModulus());
+ eps = Epsilon(eps);
Standard_Real temp = Pc3d.SquareDistance(Pcons);
+ if(temp <= eps)
+ {
+ temp = 0.;
+ }
if(temp > d2) d2 = temp;
}
d2 = 1.5*sqrt(d2);
Handle(Standard_Type) TheType = C3d->DynamicType();
if( TheType == STANDARD_TYPE(Geom_TrimmedCurve))
{
- const Handle(Geom_Curve)& gtC = (*((Handle(Geom_TrimmedCurve)*)&C3d))->BasisCurve();
+ Handle(Geom_Curve) gtC (Handle(Geom_TrimmedCurve)::DownCast (C3d)->BasisCurve());
m_TrimmedPeriodical = gtC->IsPeriodic();
}
// modified by NIZHNY-OCC486 Tue Aug 27 17:15:17 2002 .
aB.SetVoid();
BRepBndLib::Add(curf,aB);
if (S->DynamicType() == STANDARD_TYPE(Geom_RectangularTrimmedSurface)) {
- S = (*((Handle(Geom_RectangularTrimmedSurface)*)&S))->BasisSurface();
+ S = Handle(Geom_RectangularTrimmedSurface)::DownCast (S)->BasisSurface();
}
GeomAdaptor_Surface AS(S);
switch (AS.GetType()) {
}
}
+//=======================================================================
+// function : EnsureNormalConsistency
+// purpose : Corrects the normals in Poly_Triangulation of faces.
+// Returns TRUE if any correction is done.
+//=======================================================================
+Standard_Boolean BRepLib::
+ EnsureNormalConsistency(const TopoDS_Shape& theShape,
+ const Standard_Real theAngTol,
+ const Standard_Boolean theForceComputeNormals)
+{
+ const Standard_Real aThresDot = cos(theAngTol);
+
+ Standard_Boolean aRetVal = Standard_False, isNormalsFound = Standard_False;
+
+ // compute normals if they are absent
+ TopExp_Explorer anExpFace(theShape,TopAbs_FACE);
+ for (; anExpFace.More(); anExpFace.Next())
+ {
+ const TopoDS_Face& aFace = TopoDS::Face(anExpFace.Current());
+ const Handle(Geom_Surface) aSurf = BRep_Tool::Surface(aFace);
+ if(aSurf.IsNull())
+ continue;
+ TopLoc_Location aLoc;
+ const Handle(Poly_Triangulation)& aPT = BRep_Tool::Triangulation(aFace, aLoc);
+ if(aPT.IsNull())
+ continue;
+ if (!theForceComputeNormals && aPT->HasNormals())
+ {
+ isNormalsFound = Standard_True;
+ continue;
+ }
+
+ GeomLProp_SLProps aSLP(aSurf, 2, Precision::Confusion());
+ const Standard_Integer anArrDim = 3*aPT->NbNodes();
+ Handle(TShort_HArray1OfShortReal) aNormArr = new TShort_HArray1OfShortReal(1, anArrDim);
+ Standard_Integer anNormInd = aNormArr->Lower();
+ for(Standard_Integer i = aPT->UVNodes().Lower(); i <= aPT->UVNodes().Upper(); i++)
+ {
+ const gp_Pnt2d &aP2d = aPT->UVNodes().Value(i);
+ aSLP.SetParameters(aP2d.X(), aP2d.Y());
+
+ gp_XYZ aNorm(0.,0.,0.);
+ if(!aSLP.IsNormalDefined())
+ {
+#ifdef OCCT_DEBUG
+ cout << "BRepLib::EnsureNormalConsistency(): Cannot find normal!" << endl;
+#endif
+ }
+ else
+ {
+ aNorm = aSLP.Normal().XYZ();
+ if (aFace.Orientation() == TopAbs_REVERSED)
+ aNorm.Reverse();
+ }
+ aNormArr->ChangeValue(anNormInd++) = static_cast<Standard_ShortReal>(aNorm.X());
+ aNormArr->ChangeValue(anNormInd++) = static_cast<Standard_ShortReal>(aNorm.Y());
+ aNormArr->ChangeValue(anNormInd++) = static_cast<Standard_ShortReal>(aNorm.Z());
+ }
+
+ aRetVal = Standard_True;
+ isNormalsFound = Standard_True;
+ aPT->SetNormals(aNormArr);
+ }
+
+ if(!isNormalsFound)
+ {
+ return aRetVal;
+ }
+
+ // loop by edges
+ TopTools_IndexedDataMapOfShapeListOfShape aMapEF;
+ TopExp::MapShapesAndAncestors(theShape,TopAbs_EDGE,TopAbs_FACE,aMapEF);
+ for(Standard_Integer anInd = 1; anInd <= aMapEF.Extent(); anInd++)
+ {
+ const TopoDS_Edge& anEdg = TopoDS::Edge(aMapEF.FindKey(anInd));
+ const TopTools_ListOfShape& anEdgList = aMapEF.FindFromIndex(anInd);
+ if (anEdgList.Extent() != 2)
+ continue;
+ TopTools_ListIteratorOfListOfShape anItF(anEdgList);
+ const TopoDS_Face aFace1 = TopoDS::Face(anItF.Value());
+ anItF.Next();
+ const TopoDS_Face aFace2 = TopoDS::Face(anItF.Value());
+ TopLoc_Location aLoc1, aLoc2;
+ const Handle(Poly_Triangulation)& aPT1 = BRep_Tool::Triangulation(aFace1, aLoc1);
+ const Handle(Poly_Triangulation)& aPT2 = BRep_Tool::Triangulation(aFace2, aLoc2);
+
+ if(aPT1.IsNull() || aPT2.IsNull())
+ continue;
+
+ if(!aPT1->HasNormals() || !aPT2->HasNormals())
+ continue;
+
+ const Handle(Poly_PolygonOnTriangulation)& aPTEF1 =
+ BRep_Tool::PolygonOnTriangulation(anEdg, aPT1, aLoc1);
+ const Handle(Poly_PolygonOnTriangulation)& aPTEF2 =
+ BRep_Tool::PolygonOnTriangulation(anEdg, aPT2, aLoc2);
+
+ TShort_Array1OfShortReal& aNormArr1 = aPT1->ChangeNormals();
+ TShort_Array1OfShortReal& aNormArr2 = aPT2->ChangeNormals();
+
+ for(Standard_Integer anEdgNode = aPTEF1->Nodes().Lower();
+ anEdgNode <= aPTEF1->Nodes().Upper(); anEdgNode++)
+ {
+ //Number of node
+ const Standard_Integer aFNodF1 = aPTEF1->Nodes().Value(anEdgNode);
+ const Standard_Integer aFNodF2 = aPTEF2->Nodes().Value(anEdgNode);
+
+ const Standard_Integer aFNorm1FirstIndex = aNormArr1.Lower() + 3*
+ (aFNodF1 - aPT1->Nodes().Lower());
+ const Standard_Integer aFNorm2FirstIndex = aNormArr2.Lower() + 3*
+ (aFNodF2 - aPT2->Nodes().Lower());
+
+ gp_XYZ aNorm1(aNormArr1.Value(aFNorm1FirstIndex),
+ aNormArr1.Value(aFNorm1FirstIndex+1),
+ aNormArr1.Value(aFNorm1FirstIndex+2));
+ gp_XYZ aNorm2(aNormArr2.Value(aFNorm2FirstIndex),
+ aNormArr2.Value(aFNorm2FirstIndex+1),
+ aNormArr2.Value(aFNorm2FirstIndex+2));
+ const Standard_Real aDot = aNorm1 * aNorm2;
+
+ if(aDot > aThresDot)
+ {
+ gp_XYZ aNewNorm = (aNorm1 + aNorm2).Normalized();
+ aNormArr1.ChangeValue(aFNorm1FirstIndex) =
+ aNormArr2.ChangeValue(aFNorm2FirstIndex) =
+ static_cast<Standard_ShortReal>(aNewNorm.X());
+ aNormArr1.ChangeValue(aFNorm1FirstIndex+1) =
+ aNormArr2.ChangeValue(aFNorm2FirstIndex+1) =
+ static_cast<Standard_ShortReal>(aNewNorm.Y());
+ aNormArr1.ChangeValue(aFNorm1FirstIndex+2) =
+ aNormArr2.ChangeValue(aFNorm2FirstIndex+2) =
+ static_cast<Standard_ShortReal>(aNewNorm.Z());
+ aRetVal = Standard_True;
+ }
+ }
+ }
+
+ return aRetVal;
+}
+
//=======================================================================
//function : SortFaces
//purpose :
S = BRep_Tool::Surface(F, l);
if (!S.IsNull()) {
if (S->DynamicType() == STANDARD_TYPE(Geom_RectangularTrimmedSurface)) {
- S = (*((Handle(Geom_RectangularTrimmedSurface)*)&S))->BasisSurface();
+ S = Handle(Geom_RectangularTrimmedSurface)::DownCast (S)->BasisSurface();
}
GeomAdaptor_Surface AS(S);
switch (AS.GetType()) {
S = BRep_Tool::Surface(F, l);
if (!S.IsNull()) {
if (S->DynamicType() == STANDARD_TYPE(Geom_RectangularTrimmedSurface)) {
- S = (*((Handle(Geom_RectangularTrimmedSurface)*)&S))->BasisSurface();
+ S = Handle(Geom_RectangularTrimmedSurface)::DownCast (S)->BasisSurface();
}
GeomAdaptor_Surface AS(S);
switch (AS.GetType()) {
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