puts "================================================="
puts "0032874: IsParallel() method of Extrema_ExtCC does not give same results in OCC 7.6.0 vs OCC 7.5.0"
puts "================================================="
puts ""

set distExpected 10
circle c1 0 0 0 100
circle c2 0 0 0 100+$distExpected

set nbSteps 72
for {set i 1} {$i < $nbSteps} {incr i} {
  trim cc1 c1 0 2.*pi/$nbSteps*$i
  trim cc2 c2 0 2.*pi/$nbSteps*$i

  set extr [extrema cc1 cc2]
  if {[regexp {Infinite number of extremas, distance = ([-0-9.+eE]+)} $extr full dist]} {
    if {[expr abs($dist - $distExpected)] < 1.e-7} {
      puts "OK"
    } else {
      puts "Error: wrong distance $dist instead of $distExpected expected"
    }
  } else {
    puts "Error: non-parallel curves"
  }
}