puts "================================================="
puts "0030160: DBRep_IsoBuilder builds wrong isolines for planar faces"
puts "================================================="
puts ""

restore [locate_data_file OCC1477_bsplinewire_c0.brep] sp
restore [locate_data_file OCC1477_profile1_circle.brep] pr
wire pr pr

mksweep sp
addsweep pr -T -R
buildsweep res -R -S
checkshape res

explode res f
renamevar res_4 result
isos result 50
checkprops result -s 208.267
checkview -display result -2d -path ${imagedir}/${test_image}.png