OpenCascade/occt
1
0
Fork 0
mirror of https://git.dev.opencascade.org/repos/occt.git synced 2025-09-13 14:27:08 +03:00
Code Activity

For fix to #339: correct enlarging BSpline or Bezier surface with singularity

Browse Source
This commit is contained in:
jgv
2018-11-21 16:16:36 +03:00
parent 5ab4d50224
commit 8ca4e9e58a
1 changed files with 24 additions and 13 deletions
Download Patch File Download Diff File Expand all files Collapse all files

37
src/BRepOffset/BRepOffset_Tool.cxx
View File

@@ -2961,37 +2961,48 @@ static Standard_Boolean EnlargeGeometry(Handle(Geom_Surface)& S,
Standard_Real du_first = 0., du_last = 0.,
dv_first = 0., dv_last = 0.;
Handle( Geom_Curve ) uiso, viso, uiso1, uiso2, viso1, viso2;
Handle( Geom_Curve ) uiso1, uiso2, viso1, viso2;
Standard_Real gabarit_uiso1, gabarit_uiso2, gabarit_viso1, gabarit_viso2;
uiso1 = S->UIso( u1 );
uiso2 = S->UIso( u2 );
viso1 = S->VIso( v1 );
viso2 = S->VIso( v2 );
gabarit_uiso1 = BRepOffset_Tool::Gabarit( uiso1 );
gabarit_uiso2 = BRepOffset_Tool::Gabarit( uiso2 );
gabarit_viso1 = BRepOffset_Tool::Gabarit( viso1 );
gabarit_viso2 = BRepOffset_Tool::Gabarit( viso2 );
if (gabarit_viso1 <= TolApex ||
gabarit_viso2 <= TolApex)
enlargeU = Standard_False;
if (gabarit_uiso1 <= TolApex ||
gabarit_uiso2 <= TolApex)
enlargeV = Standard_False;
GeomAdaptor_Curve gac;
if (enlargeU)
{
viso = S->VIso( v1 );
gac.Load( viso );
gac.Load( viso1 );
Standard_Real du_default = GCPnts_AbscissaPoint::Length( gac ) * coeff;
du_first = (theLenBeforeUfirst == -1)? du_default : theLenBeforeUfirst;
du_last = (theLenAfterUlast == -1)? du_default : theLenAfterUlast;
uiso1 = S->UIso( u1 );
uiso2 = S->UIso( u2 );
if (BRepOffset_Tool::Gabarit( uiso1 ) <= TolApex)
if (gabarit_uiso1 <= TolApex)
enlargeUfirst = Standard_False;
if (BRepOffset_Tool::Gabarit( uiso2 ) <= TolApex)
if (gabarit_uiso2 <= TolApex)
enlargeUlast = Standard_False;
}
if (enlargeV)
{
uiso = S->UIso( u1 );
gac.Load( uiso );
gac.Load( uiso1 );
Standard_Real dv_default = GCPnts_AbscissaPoint::Length( gac ) * coeff;
dv_first = (theLenBeforeVfirst == -1)? dv_default : theLenBeforeVfirst;
dv_last = (theLenAfterVlast == -1)? dv_default : theLenAfterVlast;
viso1 = S->VIso( v1 );
viso2 = S->VIso( v2 );
if (BRepOffset_Tool::Gabarit( viso1 ) <= TolApex)
if (gabarit_viso1 <= TolApex)
{
enlargeVfirst = Standard_False;
IsV1degen = Standard_True;
}
if (BRepOffset_Tool::Gabarit( viso2 ) <= TolApex)
if (gabarit_viso2 <= TolApex)
{
enlargeVlast = Standard_False;
IsV2degen = Standard_True;