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0025876: Geom2dAPI_InterCurveCurve returns only one intersection point instead of two intersection points

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Extend domain of circle to include all possible solutions.

Test case for issue CR25876

Correct test case

Period 'jump" handling algorithm changed.
This commit is contained in:
msv
2015-03-12 12:30:18 +03:00
committed by bugmaster
parent b11a99d9c1
commit 3062fdf993
2 changed files with 43 additions and 9 deletions
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14
src/IntCurve/IntCurve_IntConicConic_1.cxx
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@@ -719,7 +719,11 @@ void IntCurve_IntConicConic::Perform(const gp_Circ2d& Circle1
PeriodicInterval C1Domain(DomainCirc1);
//-- On se ramene entre 0 et 2PI
Standard_Real deltat = C1Domain.Bsup-C1Domain.Binf;
if(deltat>=PIpPI) { deltat=PIpPI-1e-14; }
if(deltat>=PIpPI)
{
// make deltat not including the upper limit
deltat=NextAfter(PIpPI, 0.);
}
while(C1Domain.Binf >= PIpPI)
C1Domain.Binf-=PIpPI;
@@ -732,7 +736,7 @@ void IntCurve_IntConicConic::Perform(const gp_Circ2d& Circle1
deltat = C2Domain.Bsup-C2Domain.Binf;
if(deltat>=PIpPI)
{
deltat=PIpPI-1e-14;
deltat=NextAfter(PIpPI, 0.);
}
while(C2Domain.Binf >= PIpPI)
@@ -1026,21 +1030,15 @@ void IntCurve_IntConicConic::Perform(const gp_Circ2d& Circle1
//--------------------------------------------------
if(Opposite)
{
if(nbsol!=3)
{
if(C2inf<C2sup)
C2inf+=PIpPI;
}
}
else
{
if(nbsol!=3)
{
if(C2sup<C2inf)
C2sup+=PIpPI;
}
}
IntRes2d_IntersectionPoint NewPoint2(P1b,C1sup,C2sup,T1b,T2b,Standard_False);
IntRes2d_IntersectionSegment NewSeg(NewPoint1,NewPoint2,Opposite,Standard_False);

36
tests/bugs/moddata_3/bug25876 Executable file
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@@ -0,0 +1,36 @@
puts "============"
puts "CR25876"
puts "==========="
puts ""
###############################################################################
# Geom2dAPI_InterCurveCurve returns only one intersection point instead of two intersection points
###############################################################################
restore [locate_data_file bug25876_oc_test_firstcircle.brep] e1
restore [locate_data_file bug25876_oc_test_secondcircle.brep] e2
explode e1
explode e2
mk2dcurve c1 e1_1
mk2dcurve c2 e2_1
set inter1 [2dintersect c1 c2 1e-3]
set int1 [regexp {Intersection point 2} ${inter1}]
if { ${int1} == 0 } {
puts "Error : Second intersection is not found"
}
#smallview -2D-
view 1 -2D- 728 450 400 400
2dfit
xwd ${imagedir}/${test_image}_1.png
donly c1 c2
set inter2 [2dintersect c1 c2 1e-7]
set int2 [regexp {Intersection point 2} ${inter2}]
if { ${int2} == 0 } {
puts "Error : Second intersection is not found"
}
xwd ${imagedir}/${test_image}_2.png