OCCT

puts "============"
puts "OCC25593"
puts "============"
puts ""
#########################################################################
# Number of intersection points for 2d curves depends on the order of arguments in command "2dintersect"
#########################################################################

restore [locate_data_file bug25593_face1.brep] b
pcurve b

puts "Intersection 1"
set info1 [2dintersect b_2 b_3 -tol 1.e-10]
regexp {Intersection point 1 : +([-0-9.+eE]+) +([-0-9.+eE]+)} $info1 full p1x p1y
regexp {parameter on the fist: +([-0-9.+eE]+) +parameter on the second: +([-0-9.+eE]+)} $info1 full par1f par1s

puts "Intersection 2"
set info2 [2dintersect b_3 b_2 -tol 1.e-10]
regexp {Intersection point 1 : +([-0-9.+eE]+) +([-0-9.+eE]+)} $info2 full p2x p2y
regexp {parameter on the fist: +([-0-9.+eE]+) +parameter on the second: +([-0-9.+eE]+)} $info2 full par2f par2s

set NbIP1 1
if { [regexp "Intersection point 1" $info1] != 1  } {
   puts "Error : Intersection 1 should have one point"
   set NbIP1 0
}
if { [regexp "Intersection point 2" $info1] == 1  } {
   puts "Error : Intersection 1 should have one point"
   set NbIP1 2
}
puts "NbIP1=$NbIP1"

set NbIP2 1
if { [regexp "Intersection point 1" $info2] != 1  } {
   puts "Error : Intersection 2 should have one point"
   set NbIP2 0
}
if { [regexp "Intersection point 2" $info2] == 1  } {
   puts "Error : Intersection 2 should have one point"
   set NbIP2 2
}
puts "NbIP2=$NbIP2"

if { $NbIP1 != 1 || $NbIP2 != 1 } {
   puts "ERROR: Wrong solutions number"
} else {
   puts "p1x=$p1x p1y=$p1y par1f=$par1f $par1s"
   puts "p2x=$p2x p2y=$p2y par2f=$par2f $par2s"
   set sqd [expr ($p1x-$p2x)*($p1x-$p2x)+($p1y-$p2y)*($p1y-$p2y)]
   if { $sqd > 1.0e-14 } {
      puts "ERROR: Intersection points are different"
   } else {
      puts "OK: Intersection points are equal"
   }
   if { (abs($par1f - $par2s) > 1.0e-9) || (abs($par1s - $par2f) > 1.0e-9) } {
      puts "ERROR: Parameters on intersecting curves are not coincided"
   } else {
      puts "OK: Parameters on intersecting curves are coincided"
   }
}