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0029564: STEP Import and Export failure

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In the result of translation one face lying on the spherical surface converted to the two separate faces due to method IsSurfaceUVPeriodic returned false for spherical surface.
Now method IsSurfaceUVPeriodic returns true for spherical surface in order to natural bounds can be added for spherical surface too.
Method ShapeFix_Face::FixOrientation was corrected to avoid reversing inner wire for case when spherical face has only one inner bound without outer bound.
Check that wire has bounding box equal to bounding box of surface was added in the method ShapeFix_Face::FixAddNaturalBound in order to avoid addition of the natural bounds ( test bugs xde bug22535_2 1 for face 2 lying on the torus)

In order to avoid regressions fix for translation "VERTEX_LOOP" entities was added. Natural bounds for "VERTEX_LOOP" lying on the Spherical and BSpline surface is added only if face does not have any other bounds.
In other case natural bounds were added during ShapeFix operation after translation in order take into account mutual position of the all bounds in the UV space of the face.
This commit is contained in:
skl
2020-11-02 19:52:44 +03:00
committed by bugmaster
parent 59069d3fd8
commit d66f7c0fa2
10 changed files with 126 additions and 102 deletions
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35
src/ShapeFix/ShapeFix_Face.cxx
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@@ -51,6 +51,7 @@
#include <Geom_RectangularTrimmedSurface.hxx>
#include <Geom_SphericalSurface.hxx>
#include <Geom_Surface.hxx>
#include <Geom_ToroidalSurface.hxx>
#include <GeomAdaptor_HSurface.hxx>
#include <GProp_GProps.hxx>
#include <IntRes2d_Domain.hxx>
@@ -118,9 +119,9 @@ static Standard_Boolean IsSurfaceUVInfinite(const Handle(Geom_Surface)& theSurf)
Precision::IsInfinite(VMax) );
}
static Standard_Boolean IsSurfaceUVPeriodic(const Handle(Geom_Surface)& theSurf)
static Standard_Boolean IsSurfaceUVPeriodic(const Handle(GeomAdaptor_HSurface)& theSurf)
{
return theSurf->IsUPeriodic() && theSurf->IsVPeriodic();
return ( (theSurf->IsUPeriodic() && theSurf->IsVPeriodic()) || theSurf->GetType() == GeomAbs_Sphere);
}
//=======================================================================
@@ -855,7 +856,7 @@ Standard_Boolean ShapeFix_Face::FixAddNaturalBound()
}
// check if surface is double-closed and fix is needed
if ( !IsSurfaceUVPeriodic (mySurf->Surface()) || ShapeAnalysis::IsOuterBound (myFace) )
if ( !IsSurfaceUVPeriodic (mySurf->Adaptor3d()) || ShapeAnalysis::IsOuterBound (myFace) )
return Standard_False;
// Collect informations on free intervals in U and V
@@ -866,6 +867,7 @@ Standard_Boolean ShapeFix_Face::FixAddNaturalBound()
intV.Append ( gp_Pnt2d(SVF, SVL) );
Standard_Integer nb = ws.Length();
Standard_Integer i;
for ( i=1; i <= nb; i ++) {
Standard_Real Umin, Vmin, Umax, Vmax;
// Bnd_Box2d B;
@@ -877,12 +879,13 @@ Standard_Boolean ShapeFix_Face::FixAddNaturalBound()
BRep_Builder aB;
aB.Add( aWireFace, aw );
ShapeAnalysis::GetFaceUVBounds(aWireFace, Umin, Umax, Vmin, Vmax);
// PTV 01.11.2002 ACIS907, OCC921 end
if ( mySurf->IsUClosed() ) CutInterval ( intU, gp_Pnt2d(Umin,Umax), SUL-SUF );
if ( mySurf->IsVClosed() ) CutInterval ( intV, gp_Pnt2d(Vmin,Vmax), SVL-SVF );
centers.Append ( gp_Pnt2d ( 0.5*(Umin+Umax), 0.5*(Vmin+Vmax) ) );
}
// find best interval and thus compute shift
gp_Pnt2d shift(0.,0.);
if ( mySurf->IsUClosed() ) shift.SetX ( FindBestInterval ( intU ) );
@@ -1084,8 +1087,8 @@ Standard_Boolean ShapeFix_Face::FixOrientation(TopTools_DataMapOfShapeListOfShap
// if no wires, just do nothing
if ( nb <= 0) return Standard_False;
Standard_Integer nbInternal=0;
Standard_Boolean isAddNaturalBounds = (NeedFix (myFixAddNaturalBoundMode) &&
IsSurfaceUVPeriodic (mySurf->Surface()));
Standard_Boolean isAddNaturalBounds = (NeedFix (myFixAddNaturalBoundMode) && IsSurfaceUVPeriodic(mySurf->Adaptor3d()));
TColStd_SequenceOfInteger aSeqReversed;
// if wire is only one, check its orientation
if ( nb == 1 ) {
@@ -1095,19 +1098,17 @@ Standard_Boolean ShapeFix_Face::FixOrientation(TopTools_DataMapOfShapeListOfShap
TopoDS_Face af = TopoDS::Face ( dummy );
af.Orientation ( TopAbs_FORWARD );
B.Add (af,ws.Value(1));
if ((myFixAddNaturalBoundMode != 1 ||
!IsSurfaceUVPeriodic (mySurf->Surface()) ) &&
!ShapeAnalysis::IsOuterBound (af) )
!IsSurfaceUVPeriodic(mySurf->Adaptor3d())) &&
!ShapeAnalysis::IsOuterBound(af))
{
Handle(ShapeExtend_WireData) sbdw =
new ShapeExtend_WireData (TopoDS::Wire(ws.Value(1)));
sbdw->Reverse ( myFace );
ws.SetValue ( 1, sbdw->Wire() );
SendWarning ( sbdw->Wire(), Message_Msg ( "FixAdvFace.FixOrientation.MSG5" ) );// Wire on face was reversed
Handle(ShapeExtend_WireData) sbdw =
new ShapeExtend_WireData(TopoDS::Wire(ws.Value(1)));
sbdw->Reverse(myFace);
ws.SetValue(1, sbdw->Wire());
SendWarning(sbdw->Wire(), Message_Msg("FixAdvFace.FixOrientation.MSG5"));// Wire on face was reversed
done = Standard_True;
#ifdef OCCT_DEBUG
std::cout<<"Wire reversed"<<std::endl; // mise au point !
#endif
}
}
// in case of several wires, perform complex analysis
@@ -1318,7 +1319,7 @@ Standard_Boolean ShapeFix_Face::FixOrientation(TopTools_DataMapOfShapeListOfShap
MW.Bind(aw,IntWires);
if(sta==TopAbs_OUT) {
NbOuts++;
if(staout==TopAbs_IN) {
if(staout==TopAbs_IN ) {
// wire is OUT but InfinitePoint is IN => need to reverse
ShapeExtend_WireData sewd (aw);
sewd.Reverse(myFace);