puts "============"
puts "OCC20807"
puts "============"
puts ""
#######################################################################
# Construction of pipe among a helix containing several convolutions fails
#######################################################################

set BugNumber OCC20807

restore [locate_data_file bug20807_spiral.brep] sp 
explode sp
wire spine sp_1

restore [locate_data_file bug20807_circ3.brep] profile 

mksweep spine
addsweep profile

buildsweep result

checkprops result -s 4.78336e+06 
checkshape result

checknbshapes result -vertex 2 -edge 3 -wire 1 -face 1 -shell 1 -solid 0 -compsolid 0 -compound 0 -shape 8
checkview -display result -2d -path ${imagedir}/${test_image}.png