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0025494: Wrong result obtained by projection algorithm

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Calculation of last parameter of projected curve was changed for the projecting of a curve to surface of revolution, if the curve is intersected with the axis of revolution

Test case for issue CR25494
This commit is contained in:
bugmaster 2014-11-21 16:10:52 +03:00
parent 9bb81d6ce8
commit f70d6437bd
2 changed files with 35 additions and 2 deletions
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23
src/ProjLib/ProjLib_ProjectedCurve.cxx
View File

@ -53,6 +53,7 @@
#include <Geom2d_TrimmedCurve.hxx>
#include <ElCLib.hxx>
#include <GeomLib.hxx>
#include <Extrema_ExtPC.hxx>
//=======================================================================
//function : IsoIsDeg
@ -482,7 +483,16 @@ void ProjLib_ProjectedCurve::Load(const Handle(Adaptor3d_HCurve)& C)
IsTrimmed[0] = Standard_True;
f = f + dt;
myCurve = myCurve->Trim(f, l, Precision::Confusion());
Vsingular[0] = ElCLib::Parameter(L, P);
// Searching the parameter on the basis curve for surface of revolution
Extrema_ExtPC anExtr(P, mySurface->BasisCurve()->Curve(), myTolerance);
if (anExtr.IsDone())
{
Standard_Integer anIndex = 1;
while (!anExtr.IsMin(anIndex) && anIndex < anExtr.NbExt()) anIndex++;
Vsingular[0] = anExtr.Point(anIndex).Parameter();
}
else
Vsingular[0] = ElCLib::Parameter(L, P);
//SingularCase[0] = 3;
}
@ -492,7 +502,16 @@ void ProjLib_ProjectedCurve::Load(const Handle(Adaptor3d_HCurve)& C)
IsTrimmed[1] = Standard_True;
l = l - dt;
myCurve = myCurve->Trim(f, l, Precision::Confusion());
Vsingular[1] = ElCLib::Parameter(L, P);
// Searching the parameter on the basis curve for surface of revolution
Extrema_ExtPC anExtr(P, mySurface->BasisCurve()->Curve(), myTolerance);
if (anExtr.IsDone())
{
Standard_Integer anIndex = 1;
while (!anExtr.IsMin(anIndex) && anIndex < anExtr.NbExt()) anIndex++;
Vsingular[1] = anExtr.Point(anIndex).Parameter();
}
else
Vsingular[1] = ElCLib::Parameter(L, P);
//SingularCase[1] = 4;
}
}

14
tests/bugs/moddata_3/bug25494 Normal file
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@ -0,0 +1,14 @@
puts "================"
puts "OCC25494"
puts "================"
puts ""
#######################################################################
# Wrong result obtained by projection algorithm
#######################################################################
restore [locate_data_file bug25494_s.draw] s
restore [locate_data_file bug25494_c.draw] c
project c2d c s
dump c2d