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0020052: EDF 867 GEOM: Non removable extra edges. Cylindrical case.
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jfa
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76e33810ed
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b62eb94767
@ -41,9 +41,12 @@
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#include <ShapeFix_Wire.hxx>
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#include <ShapeFix_Edge.hxx>
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#include <IntPatch_TheIIIntOfIntersection.hxx>
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#include <BRep_Tool.hxx>
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#include <BRep_Builder.hxx>
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#include <BRepTools.hxx>
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#include <BRepTopAdaptor_TopolTool.hxx>
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#include <TopExp.hxx>
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#include <TopExp_Explorer.hxx>
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@ -66,14 +69,22 @@
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#include <TColGeom_HArray2OfSurface.hxx>
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#include <GeomAdaptor_HSurface.hxx>
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#include <GeomLib_IsPlanarSurface.hxx>
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#include <Geom_Surface.hxx>
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#include <Geom_Plane.hxx>
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#include <Geom_OffsetSurface.hxx>
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#include <Geom_CylindricalSurface.hxx>
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#include <Geom_SphericalSurface.hxx>
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#include <Geom_Surface.hxx>
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#include <Geom_Curve.hxx>
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#include <Geom_CylindricalSurface.hxx>
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#include <Geom_SurfaceOfRevolution.hxx>
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#include <Geom_SurfaceOfLinearExtrusion.hxx>
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#include <Geom_RectangularTrimmedSurface.hxx>
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#include <Geom_Curve.hxx>
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#include <Geom_Line.hxx>
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#include <Geom_Circle.hxx>
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#include <Geom2d_Line.hxx>
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#include <gp_XY.hxx>
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@ -504,10 +515,64 @@ TopoDS_Shape BlockFix_UnionFaces::Perform(const TopoDS_Shape& Shape)
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//purpose :
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//=======================================================================
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bool getCylinder (Handle(Geom_Surface)& theInSurface, gp_Cylinder& theOutCylinder)
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{
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bool isCylinder = false;
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if (theInSurface->IsKind(STANDARD_TYPE(Geom_CylindricalSurface))) {
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Handle(Geom_CylindricalSurface) aGC = Handle(Geom_CylindricalSurface)::DownCast(theInSurface);
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theOutCylinder = aGC->Cylinder();
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isCylinder = true;
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}
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else if (theInSurface->IsKind(STANDARD_TYPE(Geom_SurfaceOfRevolution))) {
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Handle(Geom_SurfaceOfRevolution) aRS =
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Handle(Geom_SurfaceOfRevolution)::DownCast(theInSurface);
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Handle(Geom_Curve) aBasis = aRS->BasisCurve();
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if (aBasis->IsKind(STANDARD_TYPE(Geom_Line))) {
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Handle(Geom_Line) aBasisLine = Handle(Geom_Line)::DownCast(aBasis);
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gp_Dir aDir = aRS->Direction();
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gp_Dir aBasisDir = aBasisLine->Position().Direction();
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if (aBasisDir.IsParallel(aDir, Precision::Confusion())) {
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// basis line is parallel to the revolution axis: it is a cylinder
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gp_Pnt aLoc = aRS->Location();
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Standard_Real aR = aBasisLine->Lin().Distance(aLoc);
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gp_Ax3 aCylAx (aLoc, aDir);
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theOutCylinder = gp_Cylinder(aCylAx, aR);
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isCylinder = true;
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}
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}
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}
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else if (theInSurface->IsKind(STANDARD_TYPE(Geom_SurfaceOfLinearExtrusion))) {
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Handle(Geom_SurfaceOfLinearExtrusion) aLES =
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Handle(Geom_SurfaceOfLinearExtrusion)::DownCast(theInSurface);
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Handle(Geom_Curve) aBasis = aLES->BasisCurve();
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if (aBasis->IsKind(STANDARD_TYPE(Geom_Circle))) {
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Handle(Geom_Circle) aBasisCircle = Handle(Geom_Circle)::DownCast(aBasis);
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gp_Dir aDir = aLES->Direction();
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gp_Dir aBasisDir = aBasisCircle->Position().Direction();
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if (aBasisDir.IsParallel(aDir, Precision::Confusion())) {
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// basis circle is normal to the extrusion axis: it is a cylinder
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gp_Pnt aLoc = aBasisCircle->Location();
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Standard_Real aR = aBasisCircle->Radius();
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gp_Ax3 aCylAx (aLoc, aDir);
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theOutCylinder = gp_Cylinder(aCylAx, aR);
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isCylinder = true;
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}
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}
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}
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else {
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}
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return isCylinder;
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}
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Standard_Boolean BlockFix_UnionFaces::IsSameDomain(const TopoDS_Face& aFace,
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const TopoDS_Face& aCheckedFace) const
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{
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//checking the same handless
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//checking the same handles
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TopLoc_Location L1, L2;
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Handle(Geom_Surface) S1, S2;
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@ -517,86 +582,80 @@ Standard_Boolean BlockFix_UnionFaces::IsSameDomain(const TopoDS_Face& aFace,
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if (S1 == S2 && L1 == L2)
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return true;
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// begin: planar case (improvement 20052)
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// planar and cylindrical cases (IMP 20052)
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Standard_Real aPrec = Precision::Confusion();
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S1 = BRep_Tool::Surface(aFace);
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S2 = BRep_Tool::Surface(aCheckedFace);
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Handle(Geom_Plane) aGP1, aGP2;
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Handle(Geom_RectangularTrimmedSurface) aGRTS1, aGRTS2;
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Handle(Geom_OffsetSurface) aGOFS1, aGOFS2;
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S1 = ClearRts(S1);
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S2 = ClearRts(S2);
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aGRTS1 = Handle(Geom_RectangularTrimmedSurface)::DownCast(S1);
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aGRTS2 = Handle(Geom_RectangularTrimmedSurface)::DownCast(S2);
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//Handle(Geom_OffsetSurface) aGOFS1, aGOFS2;
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//aGOFS1 = Handle(Geom_OffsetSurface)::DownCast(S1);
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//aGOFS2 = Handle(Geom_OffsetSurface)::DownCast(S2);
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//if (!aGOFS1.IsNull()) S1 = aGOFS1->BasisSurface();
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//if (!aGOFS2.IsNull()) S2 = aGOFS2->BasisSurface();
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aGOFS1 = Handle(Geom_OffsetSurface)::DownCast(S1);
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aGOFS2 = Handle(Geom_OffsetSurface)::DownCast(S2);
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// case of two elementary surfaces: use OCCT tool
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// elementary surfaces: ConicalSurface, CylindricalSurface,
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// Plane, SphericalSurface and ToroidalSurface
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if (S1->IsKind(STANDARD_TYPE(Geom_ElementarySurface)) &&
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S2->IsKind(STANDARD_TYPE(Geom_ElementarySurface)))
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{
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Handle(GeomAdaptor_HSurface) aGA1 = new GeomAdaptor_HSurface(S1);
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Handle(GeomAdaptor_HSurface) aGA2 = new GeomAdaptor_HSurface(S2);
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if (!aGOFS1.IsNull()) {
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aGP1 = Handle(Geom_Plane)::DownCast(aGOFS1->BasisSurface());
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}
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else if (!aGRTS1.IsNull()) {
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aGP1 = Handle(Geom_Plane)::DownCast(aGRTS1->BasisSurface());
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}
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else {
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aGP1 = Handle(Geom_Plane)::DownCast(S1);
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Handle(BRepTopAdaptor_TopolTool) aTT1 = new BRepTopAdaptor_TopolTool();
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Handle(BRepTopAdaptor_TopolTool) aTT2 = new BRepTopAdaptor_TopolTool();
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IntPatch_TheIIIntOfIntersection anIIInt (aGA1, aTT1, aGA2, aTT2, aPrec, aPrec);
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if (!anIIInt.IsDone() || anIIInt.IsEmpty())
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return false;
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return anIIInt.TangentFaces();
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}
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if (!aGOFS2.IsNull()) {
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aGP2 = Handle(Geom_Plane)::DownCast(aGOFS2->BasisSurface());
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}
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else if (!aGRTS2.IsNull()) {
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aGP2 = Handle(Geom_Plane)::DownCast(aGRTS2->BasisSurface());
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}
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else {
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aGP2 = Handle(Geom_Plane)::DownCast(S2);
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}
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// case of two planar surfaces:
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// all kinds of surfaces checked, including b-spline and bezier
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GeomLib_IsPlanarSurface aPlanarityChecker1 (S1, aPrec);
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if (aPlanarityChecker1.IsPlanar()) {
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GeomLib_IsPlanarSurface aPlanarityChecker2 (S2, aPrec);
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if (aPlanarityChecker2.IsPlanar()) {
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gp_Pln aPln1 = aPlanarityChecker1.Plan();
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gp_Pln aPln2 = aPlanarityChecker2.Plan();
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if (!aGP1.IsNull() && !aGP2.IsNull()) {
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// both surfaces are planar, check equality
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Standard_Real A1, B1, C1, D1;
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Standard_Real A2, B2, C2, D2;
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aGP1->Coefficients(A1, B1, C1, D1);
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aGP2->Coefficients(A2, B2, C2, D2);
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if (fabs(A1) > Precision::Confusion()) {
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A1 = 1.0;
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B1 /= A1;
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C1 /= A1;
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D1 /= A1;
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if (aPln1.Position().Direction().IsParallel(aPln2.Position().Direction(), aPrec) &&
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aPln1.Distance(aPln2) < aPrec) {
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return true;
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}
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}
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}
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// case of two cylindrical surfaces, at least one of which is a swept surface
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// swept surfaces: SurfaceOfLinearExtrusion, SurfaceOfRevolution
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if ((S1->IsKind(STANDARD_TYPE(Geom_CylindricalSurface)) ||
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S1->IsKind(STANDARD_TYPE(Geom_SweptSurface))) &&
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(S2->IsKind(STANDARD_TYPE(Geom_CylindricalSurface)) ||
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S2->IsKind(STANDARD_TYPE(Geom_SweptSurface))))
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{
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gp_Cylinder aCyl1, aCyl2;
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if (getCylinder(S1, aCyl1) && getCylinder(S2, aCyl2)) {
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if (fabs(aCyl1.Radius() - aCyl2.Radius()) < aPrec) {
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gp_Dir aDir1 = aCyl1.Position().Direction();
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gp_Dir aDir2 = aCyl2.Position().Direction();
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if (aDir1.IsParallel(aDir2, aPrec)) {
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gp_Pnt aLoc1 = aCyl1.Location();
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gp_Pnt aLoc2 = aCyl2.Location();
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gp_Vec aVec12 (aLoc1, aLoc2);
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if (aVec12.SquareMagnitude() < aPrec*aPrec ||
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aVec12.IsParallel(aDir1, aPrec)) {
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return true;
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}
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}
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}
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}
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else if (fabs(B1) > Precision::Confusion()) {
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B1 = 1.0;
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C1 /= B1;
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D1 /= B1;
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}
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else {
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C1 = 1.0;
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D1 /= C1;
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}
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if (fabs(A2) > Precision::Confusion()) {
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A2 = 1.0;
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B2 /= A2;
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C2 /= A2;
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D2 /= A2;
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}
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else if (fabs(B2) > Precision::Confusion()) {
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B2 = 1.0;
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C2 /= B2;
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D2 /= B2;
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}
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else {
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C2 = 1.0;
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D2 /= C2;
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}
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if (fabs(A1 - A2) < Precision::Confusion() &&
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fabs(B1 - B2) < Precision::Confusion() &&
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fabs(C1 - C2) < Precision::Confusion() &&
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fabs(D1 - D2) < Precision::Confusion())
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return true;
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}
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// end: planar case (improvement 20052)
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return false;
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}
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