puts "================================================================"
puts "OCC30597: BRepOffsetAPI_MakePipeShell raises Standard_RangeError"
puts "================================================================"
puts ""

restore [locate_data_file bug30597_compound.brep] a
explode a

explode a_1 v
explode a_2
explode a_3

mksweep a_1
addsweep a_2_1 a_1_1
addsweep a_3_1 a_1_2

buildsweep result

checkprops result -s 0.95884