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0026288: Offset on faces with opposite orientation

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Test-case for issue #26288
This commit is contained in:
isn 2015-09-10 16:21:32 +03:00 committed by bugmaster
parent 439403802e
commit 69f0a0fd28
2 changed files with 38 additions and 5 deletions
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25
src/BRepOffset/BRepOffset_Offset.cxx
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@ -45,6 +45,8 @@
#include <Geom_OffsetSurface.hxx> #include <Geom_OffsetSurface.hxx>
#include <Geom_RectangularTrimmedSurface.hxx> #include <Geom_RectangularTrimmedSurface.hxx>
#include <Geom_SphericalSurface.hxx> #include <Geom_SphericalSurface.hxx>
#include <Geom_SurfaceOfLinearExtrusion.hxx>
#include <Geom_SurfaceOfRevolution.hxx>
#include <Geom_Surface.hxx> #include <Geom_Surface.hxx>
#include <Geom_TrimmedCurve.hxx> #include <Geom_TrimmedCurve.hxx>
#include <GeomAdaptor_Curve.hxx> #include <GeomAdaptor_Curve.hxx>
@ -495,12 +497,20 @@ void BRepOffset_Offset::Init(const TopoDS_Face& Face,
TopLoc_Location L; TopLoc_Location L;
Handle(Geom_Surface) S = BRep_Tool::Surface(Face,L); Handle(Geom_Surface) S = BRep_Tool::Surface(Face,L);
// On detrime les surfaces, evite des recopies dans les extensions. // On detrime les surfaces, evite des recopies dans les extensions.
Handle(Geom_RectangularTrimmedSurface) RT = Handle(Geom_RectangularTrimmedSurface) RT =
Handle(Geom_RectangularTrimmedSurface)::DownCast(S); Handle(Geom_RectangularTrimmedSurface)::DownCast(S);
if (!RT.IsNull()) S = RT->BasisSurface(); if (!RT.IsNull()) S = RT->BasisSurface();
Standard_Boolean IsTransformed = Standard_False;
if ((S->IsKind(STANDARD_TYPE(Geom_BSplineSurface)) ||
S->IsKind(STANDARD_TYPE(Geom_SurfaceOfLinearExtrusion)) ||
S->IsKind(STANDARD_TYPE(Geom_SurfaceOfRevolution)) ||
S->IsKind(STANDARD_TYPE(Geom_OffsetSurface))) && !L.IsIdentity())
{
S = Handle(Geom_Surface)::DownCast(S->Copy());
S->Transform(L.Transformation());
IsTransformed = Standard_True;
}
// particular case of cone // particular case of cone
Handle(Geom_ConicalSurface) Co; Handle(Geom_ConicalSurface) Co;
Co = Handle(Geom_ConicalSurface)::DownCast(S); Co = Handle(Geom_ConicalSurface)::DownCast(S);
@ -786,7 +796,10 @@ void BRepOffset_Offset::Init(const TopoDS_Face& Face,
BRep_Builder myBuilder; BRep_Builder myBuilder;
myBuilder.MakeFace(myFace); myBuilder.MakeFace(myFace);
myBuilder.UpdateFace(myFace,TheSurf,L,BRep_Tool::Tolerance(Face)); if (!IsTransformed)
myBuilder.UpdateFace(myFace,TheSurf, L, BRep_Tool::Tolerance(Face));
else
myBuilder.UpdateFace(myFace,TheSurf, TopLoc_Location(), BRep_Tool::Tolerance(Face));
TopTools_DataMapOfShapeShape MapSS; TopTools_DataMapOfShapeShape MapSS;
@ -870,7 +883,8 @@ void BRepOffset_Offset::Init(const TopoDS_Face& Face,
else else
{ {
TheSurf->D0(P2d1.X(),P2d1.Y(),P1); TheSurf->D0(P2d1.X(),P2d1.Y(),P1);
P1.Transform(L.Transformation()); if (!L.IsIdentity() && !IsTransformed)
P1.Transform(L.Transformation());
vstart = P2d1.Y(); vstart = P2d1.Y();
} }
if (VonDegen.Contains(V2)) if (VonDegen.Contains(V2))
@ -887,7 +901,8 @@ void BRepOffset_Offset::Init(const TopoDS_Face& Face,
else else
{ {
TheSurf->D0(P2d2.X(),P2d2.Y(),P2); TheSurf->D0(P2d2.X(),P2d2.Y(),P2);
P2.Transform(L.Transformation()); if (!L.IsIdentity() && !IsTransformed)
P2.Transform(L.Transformation());
vend = P2d2.Y(); vend = P2d2.Y();
} }
// E a-t-il ume image dans la Map des Created ? // E a-t-il ume image dans la Map des Created ?

18
tests/bugs/modalg_6/bug26288 Normal file
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@ -0,0 +1,18 @@
puts "========"
puts "OCC26288"
puts "========"
puts ""
#############################################
# Offset on faces with opposite orientation
#############################################
smallview
restore [locate_data_file OCC26288-plate.brep] plate
offsetparameter 1e-7 p i
offsetload plate 160
offsetperform r
fit
set only_screen_axo 1