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0025488: Wrong result of two trimmed cylinders intersection

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1. Function IsSame(...) for IntSurf_PntOn2S was added (see IntSurf_PntOn2S.cdl for detail information).
2. Inserting additional points is forbidden if existing WLine contains only two points coincided.

Test-case for issue #25488
This commit is contained in:
nbv
2014-11-21 14:44:01 +03:00
committed by bugmaster
parent 80d659a5a6
commit baf72cd2e7
4 changed files with 111 additions and 15 deletions
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57
src/IntPatch/IntPatch_ImpImpIntersection_4.gxx
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@@ -2053,7 +2053,7 @@ Standard_Boolean IntCyCyTrim( const IntSurf_Quadric& theQuad1,
aWL1FindStatus = 2; //start a new line
}
}
if( ((aUSurf2f-aU22) <= theTol2D) &&
((aU22-aUSurf2l) <= theTol2D) &&
((aVSurf1f - aV12) <= theTol2D) &&
@@ -2237,15 +2237,29 @@ Standard_Boolean IntCyCyTrim( const IntSurf_Quadric& theQuad1,
}
else if(aWLine1->NbPnts() > 1)
{
isTheEmpty = Standard_False;
isAddedIntoWL1 = Standard_True;
Standard_Boolean isGood = Standard_True;
SeekAdditionalPoints(theQuad1, theQuad2, aWLine1->Curve(),
anEquationCoeffs, aNbPoints, aUSurf2f, aUSurf2l,
theTol2D, aPeriod, 1.0, isTheReverse);
if(aWLine1->NbPnts() == 2)
{
const IntSurf_PntOn2S& aPf = aWLine1->Point(1);
const IntSurf_PntOn2S& aPl = aWLine1->Point(2);
aWLine1->ComputeVertexParameters(theTol3D);
theSlin.Append(aWLine1);
if(aPf.IsSame(aPl, Precision::Confusion()))
isGood = Standard_False;
}
if(isGood)
{
isTheEmpty = Standard_False;
isAddedIntoWL1 = Standard_True;
SeekAdditionalPoints( theQuad1, theQuad2, aWLine1->Curve(),
anEquationCoeffs, aNbPoints, aUSurf2f, aUSurf2l,
theTol2D, aPeriod, 1.0, isTheReverse);
aWLine1->ComputeVertexParameters(theTol3D);
theSlin.Append(aWLine1);
}
}
else
{
@@ -2267,15 +2281,28 @@ Standard_Boolean IntCyCyTrim( const IntSurf_Quadric& theQuad1,
}
else if(aWLine2->NbPnts() > 1)
{
isTheEmpty = Standard_False;
isAddedIntoWL2 = Standard_True;
Standard_Boolean isGood = Standard_True;
if(aWLine2->NbPnts() == 2)
{
const IntSurf_PntOn2S& aPf = aWLine2->Point(1);
const IntSurf_PntOn2S& aPl = aWLine2->Point(2);
SeekAdditionalPoints(theQuad1, theQuad2, aWLine2->Curve(),
anEquationCoeffs, aNbPoints, aUSurf2f, aUSurf2l,
theTol2D, aPeriod, -1.0, isTheReverse);
if(aPf.IsSame(aPl, Precision::Confusion()))
isGood = Standard_False;
}
aWLine2->ComputeVertexParameters(theTol3D);
theSlin.Append(aWLine2);
if(isGood)
{
isTheEmpty = Standard_False;
isAddedIntoWL2 = Standard_True;
SeekAdditionalPoints(theQuad1, theQuad2, aWLine2->Curve(),
anEquationCoeffs, aNbPoints, aUSurf2f, aUSurf2l,
theTol2D, aPeriod, -1.0, isTheReverse);
aWLine2->ComputeVertexParameters(theTol3D);
theSlin.Append(aWLine2);
}
}
else
{