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0026289: STEP import/export produces an empty shape

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Exception is raised during reading step file containing p-curve having not-unique last knot.
Modification correcting misprint during computation new numbers of poles for such case was made in the file StepToGeom_MakeBSplineCurve.pxx
Protection against exception was made in the file StepToTopoDS/StepToTopoDS_TranslateEdge.cxx.
Warning message was added in the file StepToTopoDS_TranslateEdgeLoop.cxx.

Test case for issue CR26289
This commit is contained in:
gka
2015-08-20 16:53:50 +03:00
committed by abv
parent 52ee6a456b
commit 3884c1d394
4 changed files with 40 additions and 2 deletions
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2
src/StepToGeom/StepToGeom_MakeBSplineCurve.pxx
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@@ -75,7 +75,7 @@
if (aCurrentVal > Deg + 1)
{
if (i == 1) aFMulDiff = aCurrentVal - Deg - 1;
if (i == NbKnots) aLMulDiff = aCurrentVal - Deg - 1;
if (i == NbUniqueKnots) aLMulDiff = aCurrentVal - Deg - 1;
#ifdef OCCT_DEBUG
cout << "\nWrong multiplicity " << aCurrentVal << " on " << i
<< " knot!" << "\nChanged to " << Deg + 1 << endl;