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0029813: BRepFill_PipeShell algorithm produces invalid result

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Modified method: BRepFill_Sweep::BuildShell
case of global closedness of path containing several C0-connected parts is corrected.

(cherry picked from commit 02e4bacfb08113dcac54707b40a6499725ea00ee)
This commit is contained in:
jgv
2018-05-28 19:13:01 +03:00
committed by nbv
parent efb8681bfc
commit eea519f643
1 changed files with 6 additions and 2 deletions
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8
src/BRepFill/BRepFill_Sweep.cxx
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@@ -2092,11 +2092,12 @@ BRepFill_Sweep::BRepFill_Sweep(const Handle(BRepFill_SectionLaw)& Section,
BRep_Builder B; BRep_Builder B;
Standard_Integer NbPath = ILast - IFirst; Standard_Integer NbPath = ILast - IFirst;
Standard_Integer NbLaw = mySec->NbLaw(); Standard_Integer NbLaw = mySec->NbLaw();
Standard_Boolean uclose, vclose, constSection, hasdegen = Standard_False; Standard_Boolean uclose, vclose, global_vclose, constSection, hasdegen = Standard_False;
constSection = mySec->IsConstant(); constSection = mySec->IsConstant();
uclose = mySec->IsUClosed(); uclose = mySec->IsUClosed();
vclose = (mySec->IsVClosed() && myLoc->IsClosed()) && vclose = (mySec->IsVClosed() && myLoc->IsClosed()) &&
(NbPath == myLoc->NbLaw()) && (myLoc->IsG1(0, myTol3d)>= 0); (NbPath == myLoc->NbLaw()) && (myLoc->IsG1(0, myTol3d)>= 0);
global_vclose = (myLoc->IsClosed()) && (myLoc->IsG1(0, myTol3d)>= 0);
Error = 0.; Error = 0.;
// (1) Construction of all surfaces // (1) Construction of all surfaces
@@ -2675,7 +2676,10 @@ BRepFill_Sweep::BRepFill_Sweep(const Handle(BRepFill_SectionLaw)& Section,
myTol3d); myTol3d);
else else
{ {
if (ipath != NbPath || vclose) if (ipath != NbPath ||
vclose ||
(global_vclose && ILast == myLoc->NbLaw()+1))
UpdateEdge(TopoDS::Edge(VEdge(isec, ipath+1)), UpdateEdge(TopoDS::Edge(VEdge(isec, ipath+1)),
S, exuv, VLast); S, exuv, VLast);
else //ipath == NbPath && !vclose => rebuild last edge else //ipath == NbPath && !vclose => rebuild last edge