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0030391: Improvement of the method BRepOffset_Tool::EnLargeFace
Add options to set the length of enlargement for each of 4 directions. Add restriction of enlargement in the case of singularity on the surface.
This commit is contained in:
jgv
msv
@@ -2814,34 +2814,40 @@ static void MakeFace(const Handle(Geom_Surface)& S,
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//purpose :
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//=======================================================================
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static Standard_Boolean EnlargeGeometry(Handle(Geom_Surface)& S,
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Standard_Real& U1,
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Standard_Real& U2,
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Standard_Real& V1,
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Standard_Real& V2,
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Standard_Boolean& IsV1degen,
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Standard_Boolean& IsV2degen,
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const Standard_Real uf1,
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const Standard_Real uf2,
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const Standard_Real vf1,
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const Standard_Real vf2,
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const Standard_Boolean GlobalEnlargeU,
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const Standard_Boolean GlobalEnlargeVfirst,
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const Standard_Boolean GlobalEnlargeVlast)
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static Standard_Boolean EnlargeGeometry(Handle(Geom_Surface)& S,
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Standard_Real& U1,
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Standard_Real& U2,
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Standard_Real& V1,
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Standard_Real& V2,
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Standard_Boolean& IsV1degen,
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Standard_Boolean& IsV2degen,
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const Standard_Real uf1,
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const Standard_Real uf2,
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const Standard_Real vf1,
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const Standard_Real vf2,
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const Standard_Real coeff,
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const Standard_Boolean theGlobalEnlargeU,
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const Standard_Boolean theGlobalEnlargeVfirst,
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const Standard_Boolean theGlobalEnlargeVlast,
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const Standard_Real theLenBeforeUfirst,
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const Standard_Real theLenAfterUlast,
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const Standard_Real theLenBeforeVfirst,
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const Standard_Real theLenAfterVlast)
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{
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const Standard_Real coeff = 1.;
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const Standard_Real TolApex = 1.e-5;
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Standard_Boolean SurfaceChange = Standard_False;
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if ( S->DynamicType() == STANDARD_TYPE(Geom_RectangularTrimmedSurface)) {
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Handle(Geom_Surface) BS = Handle(Geom_RectangularTrimmedSurface)::DownCast (S)->BasisSurface();
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EnlargeGeometry(BS,U1,U2,V1,V2,IsV1degen,IsV2degen,
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uf1,uf2,vf1,vf2,GlobalEnlargeU,GlobalEnlargeVfirst,GlobalEnlargeVlast);
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if (!GlobalEnlargeVfirst)
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uf1,uf2,vf1,vf2,coeff,
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theGlobalEnlargeU, theGlobalEnlargeVfirst, theGlobalEnlargeVlast,
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theLenBeforeUfirst, theLenAfterUlast, theLenBeforeVfirst, theLenAfterVlast);
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if (!theGlobalEnlargeVfirst)
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V1 = vf1;
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if (!GlobalEnlargeVlast)
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if (!theGlobalEnlargeVlast)
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V2 = vf2;
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if (!GlobalEnlargeVfirst || !GlobalEnlargeVlast)
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if (!theGlobalEnlargeVfirst || !theGlobalEnlargeVlast)
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//Handle(Geom_RectangularTrimmedSurface)::DownCast (S)->SetTrim( U1, U2, V1, V2 );
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S = new Geom_RectangularTrimmedSurface( BS, U1, U2, V1, V2 );
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else
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@@ -2851,155 +2857,178 @@ static Standard_Boolean EnlargeGeometry(Handle(Geom_Surface)& S,
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else if (S->DynamicType() == STANDARD_TYPE(Geom_OffsetSurface)) {
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Handle(Geom_Surface) Surf = Handle(Geom_OffsetSurface)::DownCast (S)->BasisSurface();
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SurfaceChange = EnlargeGeometry(Surf,U1,U2,V1,V2,IsV1degen,IsV2degen,
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uf1,uf2,vf1,vf2,GlobalEnlargeU,GlobalEnlargeVfirst,GlobalEnlargeVlast);
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uf1,uf2,vf1,vf2,coeff,
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theGlobalEnlargeU, theGlobalEnlargeVfirst, theGlobalEnlargeVlast,
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theLenBeforeUfirst, theLenAfterUlast, theLenBeforeVfirst, theLenAfterVlast);
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Handle(Geom_OffsetSurface)::DownCast(S)->SetBasisSurface(Surf);
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}
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else if (S->DynamicType() == STANDARD_TYPE(Geom_SurfaceOfLinearExtrusion) ||
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S->DynamicType() == STANDARD_TYPE(Geom_SurfaceOfRevolution))
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{
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Standard_Real du_first = 0., du_last = 0.,
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dv_first = 0., dv_last = 0.;
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Handle( Geom_Curve ) uiso, viso, uiso1, uiso2, viso1, viso2;
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Standard_Real u1, u2, v1, v2;
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Standard_Boolean enlargeU = theGlobalEnlargeU, enlargeV = Standard_True;
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Standard_Boolean enlargeUfirst = enlargeU, enlargeUlast = enlargeU;
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Standard_Boolean enlargeVfirst = theGlobalEnlargeVfirst, enlargeVlast = theGlobalEnlargeVlast;
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S->Bounds( u1, u2, v1, v2 );
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if (Precision::IsInfinite(u1) || Precision::IsInfinite(u2))
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{
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Standard_Real du=0., dv=0.;
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Handle( Geom_Curve ) uiso, viso, uiso1, uiso2, viso1, viso2;
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Standard_Real u1, u2, v1, v2;
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Standard_Boolean enlargeU = GlobalEnlargeU, enlargeV = Standard_True;
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Standard_Boolean enlargeUfirst = enlargeU, enlargeUlast = enlargeU;
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Standard_Boolean enlargeVfirst = GlobalEnlargeVfirst, enlargeVlast = GlobalEnlargeVlast;
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S->Bounds( u1, u2, v1, v2 );
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if (Precision::IsInfinite(u1) || Precision::IsInfinite(u2))
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{
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du = uf2-uf1;
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u1 = uf1-du;
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u2 = uf2+du;
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enlargeU = Standard_False;
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}
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else if (S->IsUClosed())
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enlargeU = Standard_False;
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else
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{
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viso = S->VIso( vf1 );
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GeomAdaptor_Curve gac( viso );
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du = GCPnts_AbscissaPoint::Length( gac ) * coeff;
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uiso1 = S->UIso( uf1 );
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uiso2 = S->UIso( uf2 );
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if (BRepOffset_Tool::Gabarit( uiso1 ) <= TolApex)
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enlargeUfirst = Standard_False;
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if (BRepOffset_Tool::Gabarit( uiso2 ) <= TolApex)
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enlargeUlast = Standard_False;
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}
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if (Precision::IsInfinite(v1) || Precision::IsInfinite(v2))
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{
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dv = vf2-vf1;
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v1 = vf1-dv;
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v2 = vf2+dv;
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enlargeV = Standard_False;
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}
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else if (S->IsVClosed())
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enlargeV = Standard_False;
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else
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{
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uiso = S->UIso( uf1 );
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GeomAdaptor_Curve gac( uiso );
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dv = GCPnts_AbscissaPoint::Length( gac ) * coeff;
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viso1 = S->VIso( vf1 );
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viso2 = S->VIso( vf2 );
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if (BRepOffset_Tool::Gabarit( viso1 ) <= TolApex)
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{
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enlargeVfirst = Standard_False;
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IsV1degen = Standard_True;
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}
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if (BRepOffset_Tool::Gabarit( viso2 ) <= TolApex)
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{
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enlargeVlast = Standard_False;
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IsV2degen = Standard_True;
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}
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}
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Handle(Geom_BoundedSurface) aSurf = new Geom_RectangularTrimmedSurface( S, u1, u2, v1, v2 );
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if (enlargeU)
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{
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if (enlargeUfirst)
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GeomLib::ExtendSurfByLength (aSurf, du, 1, Standard_True, Standard_False);
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if (enlargeUlast)
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GeomLib::ExtendSurfByLength (aSurf, du, 1, Standard_True, Standard_True);
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}
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if (enlargeV)
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{
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if (enlargeVfirst)
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GeomLib::ExtendSurfByLength (aSurf, dv, 1, Standard_False, Standard_False);
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if (enlargeVlast)
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GeomLib::ExtendSurfByLength (aSurf, dv, 1, Standard_False, Standard_True);
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}
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S = aSurf;
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S->Bounds( U1, U2, V1, V2 );
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SurfaceChange = Standard_True;
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du_first = du_last = uf2-uf1;
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u1 = uf1 - du_first;
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u2 = uf2 + du_last;
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enlargeU = Standard_False;
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}
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else if (S->IsUClosed())
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enlargeU = Standard_False;
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else
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{
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viso = S->VIso( vf1 );
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GeomAdaptor_Curve gac( viso );
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Standard_Real du_default = GCPnts_AbscissaPoint::Length( gac ) * coeff;
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du_first = (theLenBeforeUfirst == -1)? du_default : theLenBeforeUfirst;
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du_last = (theLenAfterUlast == -1)? du_default : theLenAfterUlast;
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uiso1 = S->UIso( uf1 );
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uiso2 = S->UIso( uf2 );
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if (BRepOffset_Tool::Gabarit( uiso1 ) <= TolApex)
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enlargeUfirst = Standard_False;
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if (BRepOffset_Tool::Gabarit( uiso2 ) <= TolApex)
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enlargeUlast = Standard_False;
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}
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if (Precision::IsInfinite(v1) || Precision::IsInfinite(v2))
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{
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dv_first = dv_last = vf2-vf1;
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v1 = vf1 - dv_first;
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v2 = vf2 + dv_last;
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enlargeV = Standard_False;
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}
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else if (S->IsVClosed())
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enlargeV = Standard_False;
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else
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{
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uiso = S->UIso( uf1 );
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GeomAdaptor_Curve gac( uiso );
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Standard_Real dv_default = GCPnts_AbscissaPoint::Length( gac ) * coeff;
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dv_first = (theLenBeforeVfirst == -1)? dv_default : theLenBeforeVfirst;
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dv_last = (theLenAfterVlast == -1)? dv_default : theLenAfterVlast;
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viso1 = S->VIso( vf1 );
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viso2 = S->VIso( vf2 );
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if (BRepOffset_Tool::Gabarit( viso1 ) <= TolApex)
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{
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enlargeVfirst = Standard_False;
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IsV1degen = Standard_True;
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}
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if (BRepOffset_Tool::Gabarit( viso2 ) <= TolApex)
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{
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enlargeVlast = Standard_False;
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IsV2degen = Standard_True;
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}
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}
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Handle(Geom_BoundedSurface) aSurf = new Geom_RectangularTrimmedSurface( S, u1, u2, v1, v2 );
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if (enlargeU)
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{
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if (enlargeUfirst && du_first != 0.)
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GeomLib::ExtendSurfByLength (aSurf, du_first, 1, Standard_True, Standard_False);
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if (enlargeUlast && du_last != 0.)
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GeomLib::ExtendSurfByLength (aSurf, du_last, 1, Standard_True, Standard_True);
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}
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if (enlargeV)
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{
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if (enlargeVfirst && dv_first != 0.)
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GeomLib::ExtendSurfByLength (aSurf, dv_first, 1, Standard_False, Standard_False);
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if (enlargeVlast && dv_last != 0.)
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GeomLib::ExtendSurfByLength (aSurf, dv_last, 1, Standard_False, Standard_True);
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}
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S = aSurf;
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S->Bounds( U1, U2, V1, V2 );
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SurfaceChange = Standard_True;
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}
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else if (S->DynamicType() == STANDARD_TYPE(Geom_BezierSurface) ||
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S->DynamicType() == STANDARD_TYPE(Geom_BSplineSurface))
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{
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Standard_Boolean enlargeU = theGlobalEnlargeU, enlargeV = Standard_True;
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Standard_Boolean enlargeUfirst = enlargeU, enlargeUlast = enlargeU;
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Standard_Boolean enlargeVfirst = theGlobalEnlargeVfirst, enlargeVlast = theGlobalEnlargeVlast;
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if (S->IsUClosed())
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enlargeU = Standard_False;
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if (S->IsVClosed())
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enlargeV = Standard_False;
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Standard_Real duf = uf2-uf1, dvf = vf2-vf1;
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Standard_Real u1, u2, v1, v2;
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S->Bounds( u1, u2, v1, v2 );
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Standard_Real du_first = 0., du_last = 0.,
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dv_first = 0., dv_last = 0.;
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Handle( Geom_Curve ) uiso1, uiso2, viso1, viso2;
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Standard_Real gabarit_uiso1, gabarit_uiso2, gabarit_viso1, gabarit_viso2;
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uiso1 = S->UIso( u1 );
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uiso2 = S->UIso( u2 );
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viso1 = S->VIso( v1 );
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viso2 = S->VIso( v2 );
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gabarit_uiso1 = BRepOffset_Tool::Gabarit( uiso1 );
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gabarit_uiso2 = BRepOffset_Tool::Gabarit( uiso2 );
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gabarit_viso1 = BRepOffset_Tool::Gabarit( viso1 );
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gabarit_viso2 = BRepOffset_Tool::Gabarit( viso2 );
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if (gabarit_viso1 <= TolApex ||
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gabarit_viso2 <= TolApex)
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enlargeU = Standard_False;
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if (gabarit_uiso1 <= TolApex ||
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gabarit_uiso2 <= TolApex)
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enlargeV = Standard_False;
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GeomAdaptor_Curve gac;
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if (enlargeU)
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{
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Standard_Boolean enlargeU = GlobalEnlargeU, enlargeV = Standard_True;
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Standard_Boolean enlargeUfirst = enlargeU, enlargeUlast = enlargeU;
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Standard_Boolean enlargeVfirst = GlobalEnlargeVfirst, enlargeVlast = GlobalEnlargeVlast;
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if (S->IsUClosed())
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enlargeU = Standard_False;
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if (S->IsVClosed())
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enlargeV = Standard_False;
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Standard_Real duf = uf2-uf1, dvf = vf2-vf1;
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Standard_Real u1, u2, v1, v2;
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S->Bounds( u1, u2, v1, v2 );
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Standard_Real du=0., dv=0.;
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Handle( Geom_Curve ) uiso, viso, uiso1, uiso2, viso1, viso2;
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GeomAdaptor_Curve gac;
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if (enlargeU)
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{
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viso = S->VIso( v1 );
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gac.Load( viso );
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du = GCPnts_AbscissaPoint::Length( gac ) * coeff;
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uiso1 = S->UIso( u1 );
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uiso2 = S->UIso( u2 );
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if (BRepOffset_Tool::Gabarit( uiso1 ) <= TolApex)
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enlargeUfirst = Standard_False;
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if (BRepOffset_Tool::Gabarit( uiso2 ) <= TolApex)
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enlargeUlast = Standard_False;
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}
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if (enlargeV)
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{
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uiso = S->UIso( u1 );
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gac.Load( uiso );
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dv = GCPnts_AbscissaPoint::Length( gac ) * coeff;
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viso1 = S->VIso( v1 );
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viso2 = S->VIso( v2 );
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if (BRepOffset_Tool::Gabarit( viso1 ) <= TolApex)
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{
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enlargeVfirst = Standard_False;
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IsV1degen = Standard_True;
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}
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if (BRepOffset_Tool::Gabarit( viso2 ) <= TolApex)
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{
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enlargeVlast = Standard_False;
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IsV2degen = Standard_True;
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}
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}
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Handle(Geom_BoundedSurface) aSurf = Handle(Geom_BoundedSurface)::DownCast (S);
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if (enlargeU)
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{
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if (enlargeUfirst && uf1-u1 < duf)
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GeomLib::ExtendSurfByLength (aSurf, du, 1, Standard_True, Standard_False);
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if (enlargeUlast && u2-uf2 < duf)
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GeomLib::ExtendSurfByLength (aSurf, du, 1, Standard_True, Standard_True);
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}
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if (enlargeV)
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{
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if (enlargeVfirst && vf1-v1 < dvf)
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GeomLib::ExtendSurfByLength (aSurf, dv, 1, Standard_False, Standard_False);
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if (enlargeVlast && v2-vf2 < dvf)
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GeomLib::ExtendSurfByLength (aSurf, dv, 1, Standard_False, Standard_True);
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}
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S = aSurf;
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S->Bounds( U1, U2, V1, V2 );
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SurfaceChange = Standard_True;
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gac.Load( viso1 );
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Standard_Real du_default = GCPnts_AbscissaPoint::Length( gac ) * coeff;
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du_first = (theLenBeforeUfirst == -1)? du_default : theLenBeforeUfirst;
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du_last = (theLenAfterUlast == -1)? du_default : theLenAfterUlast;
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if (gabarit_uiso1 <= TolApex)
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enlargeUfirst = Standard_False;
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if (gabarit_uiso2 <= TolApex)
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enlargeUlast = Standard_False;
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}
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if (enlargeV)
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{
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gac.Load( uiso1 );
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Standard_Real dv_default = GCPnts_AbscissaPoint::Length( gac ) * coeff;
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dv_first = (theLenBeforeVfirst == -1)? dv_default : theLenBeforeVfirst;
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dv_last = (theLenAfterVlast == -1)? dv_default : theLenAfterVlast;
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if (gabarit_viso1 <= TolApex)
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{
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enlargeVfirst = Standard_False;
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IsV1degen = Standard_True;
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}
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if (gabarit_viso2 <= TolApex)
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{
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enlargeVlast = Standard_False;
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IsV2degen = Standard_True;
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}
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}
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Handle(Geom_BoundedSurface) aSurf = Handle(Geom_BoundedSurface)::DownCast (S);
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if (enlargeU)
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{
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if (enlargeUfirst && uf1-u1 < duf && du_first != 0.)
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GeomLib::ExtendSurfByLength (aSurf, du_first, 1, Standard_True, Standard_False);
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if (enlargeUlast && u2-uf2 < duf && du_last != 0.)
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GeomLib::ExtendSurfByLength (aSurf, du_last, 1, Standard_True, Standard_True);
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}
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if (enlargeV)
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{
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if (enlargeVfirst && vf1-v1 < dvf && dv_first != 0.)
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GeomLib::ExtendSurfByLength (aSurf, dv_first, 1, Standard_False, Standard_False);
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if (enlargeVlast && v2-vf2 < dvf && dv_last != 0.)
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GeomLib::ExtendSurfByLength (aSurf, dv_last, 1, Standard_False, Standard_True);
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}
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S = aSurf;
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S->Bounds( U1, U2, V1, V2 );
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SurfaceChange = Standard_True;
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}
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// else if (S->DynamicType() == STANDARD_TYPE(Geom_BezierSurface) ||
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// S->DynamicType() == STANDARD_TYPE(Geom_BSplineSurface)) {
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// S->Bounds(U1,U2,V1,V2);
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@@ -3244,10 +3273,14 @@ Standard_Boolean BRepOffset_Tool::EnLargeFace
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TopoDS_Face& BF,
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const Standard_Boolean CanExtentSurface,
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const Standard_Boolean UpdatePCurve,
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const Standard_Boolean enlargeU,
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||||
const Standard_Boolean enlargeVfirst,
|
||||
const Standard_Boolean enlargeVlast,
|
||||
const Standard_Boolean UseInfini)
|
||||
const Standard_Boolean theEnlargeU,
|
||||
const Standard_Boolean theEnlargeVfirst,
|
||||
const Standard_Boolean theEnlargeVlast,
|
||||
const Standard_Integer theExtensionMode,
|
||||
const Standard_Real theLenBeforeUfirst,
|
||||
const Standard_Real theLenAfterUlast,
|
||||
const Standard_Real theLenBeforeVfirst,
|
||||
const Standard_Real theLenAfterVlast)
|
||||
{
|
||||
//Detect closedness in U and V
|
||||
Standard_Boolean uclosed = Standard_False, vclosed = Standard_False;
|
||||
@@ -3283,10 +3316,12 @@ Standard_Boolean BRepOffset_Tool::EnLargeFace
|
||||
}
|
||||
|
||||
S->Bounds (US1,US2,VS1,VS2);
|
||||
if (UseInfini)
|
||||
Standard_Real coeff;
|
||||
if (theExtensionMode == 1)
|
||||
{
|
||||
UU1 = VV1 = - infini;
|
||||
UU2 = VV2 = infini;
|
||||
coeff = 0.25;
|
||||
}
|
||||
else
|
||||
{
|
||||
@@ -3296,11 +3331,13 @@ Standard_Boolean BRepOffset_Tool::EnLargeFace
|
||||
UU2 = UF2 + 10*FaceDU;
|
||||
VV1 = VF1 - 10*FaceDV;
|
||||
VV2 = VF2 + 10*FaceDV;
|
||||
coeff = 1.;
|
||||
}
|
||||
|
||||
if (CanExtentSurface) {
|
||||
SurfaceChange = EnlargeGeometry( S, UU1, UU2, VV1, VV2, isVV1degen, isVV2degen, UF1, UF2, VF1, VF2,
|
||||
enlargeU, enlargeVfirst, enlargeVlast );
|
||||
SurfaceChange = EnlargeGeometry(S, UU1, UU2, VV1, VV2, isVV1degen, isVV2degen, UF1, UF2, VF1, VF2, coeff,
|
||||
theEnlargeU, theEnlargeVfirst, theEnlargeVlast,
|
||||
theLenBeforeUfirst, theLenAfterUlast, theLenBeforeVfirst, theLenAfterVlast);
|
||||
}
|
||||
else {
|
||||
UU1 = Max(US1,UU1); UU2 = Min(UU2,US2);
|
||||
@@ -3349,13 +3386,13 @@ Standard_Boolean BRepOffset_Tool::EnLargeFace
|
||||
}
|
||||
}
|
||||
|
||||
if (!enlargeU)
|
||||
if (!theEnlargeU)
|
||||
{
|
||||
UU1 = UF1; UU2 = UF2;
|
||||
}
|
||||
if (!enlargeVfirst)
|
||||
if (!theEnlargeVfirst)
|
||||
VV1 = VF1;
|
||||
if (!enlargeVlast)
|
||||
if (!theEnlargeVlast)
|
||||
VV2 = VF2;
|
||||
|
||||
MakeFace(S,UU1,UU2,VV1,VV2,uclosed,vclosed,isVV1degen,isVV2degen,BF);
|
||||
|
||||
@@ -112,10 +112,14 @@ public:
|
||||
TopoDS_Face& NF,
|
||||
const Standard_Boolean ChangeGeom,
|
||||
const Standard_Boolean UpDatePCurve = Standard_False,
|
||||
const Standard_Boolean enlargeU = Standard_True,
|
||||
const Standard_Boolean enlargeVfirst = Standard_True,
|
||||
const Standard_Boolean enlargeVlast = Standard_True,
|
||||
const Standard_Boolean UseInfini = Standard_True);
|
||||
const Standard_Boolean theEnlargeU = Standard_True,
|
||||
const Standard_Boolean theEnlargeVfirst = Standard_True,
|
||||
const Standard_Boolean theEnlargeVlast = Standard_True,
|
||||
const Standard_Integer theExtensionMode = 1,
|
||||
const Standard_Real theLenBeforeUfirst = -1.,
|
||||
const Standard_Real theLenAfterUlast = -1.,
|
||||
const Standard_Real theLenBeforeVfirst = -1.,
|
||||
const Standard_Real theLenAfterVlast = -1.);
|
||||
|
||||
Standard_EXPORT static void ExtentFace (const TopoDS_Face& F, TopTools_DataMapOfShapeShape& ConstShapes, TopTools_DataMapOfShapeShape& ToBuild, const TopAbs_State Side, const Standard_Real TolConf, TopoDS_Face& NF);
|
||||
|
||||
|
||||
Reference in New Issue
Block a user