puts ""
puts "=========================================================================="
puts "OCC31016: Projection of an ellipse or a circle is a B-spline in some cases"
puts "=========================================================================="
puts ""

ellipse c 0 0 0  0 0 1  2 1 0  20 10
plane p 0 0 0  0 1 10
projonplane r c p 1

if {![regexp {BSplineCurve} [dump r]]} {
  puts "ERROR: Projected curve is not a B-spline curve"
}

if {[CheckProjectionToPlane 100 c 0 [expr 2*[dval pi]] r 0 [expr 2*[dval pi]] p {} 1.e-6]} {
  puts ""
  puts "OK: All sample points are projected correctly"
  puts ""
} else {
  puts ""
  puts "ERROR: Projection is incorrect for some points"
  puts ""
}