puts "============"
puts "0031147: Modeling Algorithms - BRepOffsetAPI_MakePipeShell null access"
puts "============"
puts ""

pload VISUALIZATION

restore [locate_data_file bug31147.brep] s
explode s e
wire spine s_1
wire profile s_2

mksweep spine
addsweep profile
setsweep -SM 1000
setsweep -DM 14
buildsweep result -S -C 

set info1 [errorsweep]

set check [regexp {Tolerance on surfaces = ([0-9\-+Ee.]+)} $info1 str error]

if { $error > 1.e-4 } {
   puts "Error: bad tolerance of result"
}

vinit
vdisplay result
vsetdispmode 1
vfit

checkshape result
checkview -screenshot -3d -path ${imagedir}/${test_image}.png

puts "TEST COMPLETED"