OCCT

puts "================"
puts "OCC25706"
puts "================"
puts ""
#######################################################################
# Exception in conversion B-spline to rational
#######################################################################

2dbsplinecurve bc 2 2  0.0 3  1.0 3  0 0 1.0  0.5 1 1.0  1 0 1.0
mkedge e1 bc

dump bc

setweight bc 2 0.5

set info [dump bc]
if { [regexp {rational} ${info}] } {
    puts "OK : B-spline is rational"
} else {
    puts "Error : B-spline is non-rational"
}

mkedge result bc

checkview -display result -2d -path ${imagedir}/${test_image}.png