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0029655: [Regression to 6.9.1] Distance between cylinder and straight line

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Trimming line by corner points of surface bounding box is added to reduce rang of line
Test case added
This commit is contained in:
ifv 2018-04-02 17:05:51 +03:00 committed by abv
parent 80d55adf7c
commit 4563cf3e6c
2 changed files with 39 additions and 42 deletions
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62
src/Extrema/Extrema_ExtCS.cxx
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@ -23,8 +23,6 @@
#include <ElCLib.hxx>
#include <ElSLib.hxx>
#include <Extrema_ExtCS.hxx>
#include <Extrema_ExtPElC.hxx>
#include <Extrema_ExtPElS.hxx>
#include <Extrema_ExtPS.hxx>
#include <Extrema_GenExtCS.hxx>
#include <Extrema_POnCurv.hxx>
@ -147,53 +145,34 @@ void Extrema_ExtCS::Perform(const Adaptor3d_Curve& C,
Standard_Real ufirst = myS->FirstUParameter(), ulast = myS->LastUParameter(),
vfirst = myS->FirstVParameter(), vlast = myS->LastVParameter();
if(Precision::IsInfinite(Abs(cfirst)) || Precision::IsInfinite(Abs(clast))) {
if (!(Precision::IsInfinite(ufirst) || Precision::IsInfinite(ulast) ||
Precision::IsInfinite(vfirst) || Precision::IsInfinite(vlast)))
{
Standard_Real tmin = Precision::Infinite(), tmax = -tmin;
Standard_Real xmin, ymin, zmin, xmax, ymax, zmax;
Bnd_Box aSurfBox;
BndLib_AddSurface::Add(*myS, ufirst, ulast, vfirst, vlast, Precision::Confusion(), aSurfBox);
Standard_Real xmin, ymin, zmin, xmax, ymax, zmax;
aSurfBox.Get(xmin, ymin, zmin, xmax, ymax, zmax);
Standard_Real tmin = Precision::Infinite(), tmax = -tmin;
gp_Lin aLin = C.Line();
Standard_Real aParOnLin;
gp_Pnt aLimPntArray[8];
aLimPntArray[0].SetCoord(xmin, ymin, zmin);
aLimPntArray[1].SetCoord(xmax, ymin, zmin);
aLimPntArray[2].SetCoord(xmin, ymax, zmin);
aLimPntArray[3].SetCoord(xmax, ymax, zmin);
aLimPntArray[4].SetCoord(xmin, ymin, zmax);
aLimPntArray[5].SetCoord(xmax, ymin, zmax);
aLimPntArray[6].SetCoord(xmin, ymax, zmax);
aLimPntArray[7].SetCoord(xmax, ymax, zmax);
if(!( Precision::IsInfinite(Abs(xmin)) || Precision::IsInfinite(Abs(xmax)) ||
Precision::IsInfinite(Abs(ymin)) || Precision::IsInfinite(Abs(ymax)) ||
Precision::IsInfinite(Abs(zmin)) || Precision::IsInfinite(Abs(zmax))) ) {
Extrema_ExtPElC anExt;
Extrema_POnCurv aPntOnLin;
Standard_Real aParOnLin;
Standard_Real lim = Precision::Infinite();
gp_Pnt aLimPntArray[8];
aLimPntArray[0].SetCoord(xmin, ymin, zmin);
aLimPntArray[1].SetCoord(xmax, ymin, zmin);
aLimPntArray[2].SetCoord(xmin, ymax, zmin);
aLimPntArray[3].SetCoord(xmax, ymax, zmin);
aLimPntArray[4].SetCoord(xmin, ymin, zmax);
aLimPntArray[5].SetCoord(xmax, ymin, zmax);
aLimPntArray[6].SetCoord(xmin, ymax, zmax);
aLimPntArray[7].SetCoord(xmax, ymax, zmax);
for(i = 0; i <= 7; i++) {
anExt.Perform(aLimPntArray[i], aLin, Precision::Confusion(), -lim, lim);
aPntOnLin = anExt.Point(1);
aParOnLin = aPntOnLin.Parameter();
tmin = Min(aParOnLin, tmin);
tmax = Max(aParOnLin, tmax);
}
for (i = 0; i <= 7; i++) {
aParOnLin = ElCLib::Parameter(aLin, aLimPntArray[i]);
tmin = Min(aParOnLin, tmin);
tmax = Max(aParOnLin, tmax);
}
else {
tmin = -1.e+50;
tmax = 1.e+50;
}
cfirst = Max(cfirst, tmin);
clast = Min(clast, tmax);
clast = Min(clast, tmax);
}
if (myS->IsUPeriodic())
@ -219,7 +198,6 @@ void Extrema_ExtCS::Perform(const Adaptor3d_Curve& C,
}
}
return;
}
}
break;

19
tests/bugs/modalg_7/bug29655 Normal file
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@ -0,0 +1,19 @@
puts "========"
puts "OCC29655"
puts "========"
puts ""
#################################################
# 0029655: [Regression to 6.9.1] Distance between cylinder and straight line
#################################################
restore [locate_data_file bug29655.brep] s
explode s
distmini res s_1 s_2
if { [isdraw res] } {
checknbshapes res -vertex 1 -edge 0
} else { puts "Error : result of distmini is wrong" }