5 #################################################
6 # Extrema algorithm raises exception
7 #################################################
9 # Curves c1 and c2 lie on parallel lines.
10 # However, they are bounded (trimmed) curves
11 # and are shifted relatively to each other. So,
12 # perpendicular between these curves does not exist.
21 if { ![isdraw ext_1 ] } {
22 puts "Error in Extrema-algorithm"
24 puts "Extrema-algorithm works properly"
30 if { ![isdraw ext_1 ] } {
31 puts "Error in Extrema-algorithm"
33 puts "Extrema-algorithm works properly"