OCCT

puts "# ===================================================================="
puts "# OCC25730: result of MakeThickSolid aborts the BOPCheck in Geom_OffsetSurface::SetD0"
puts "# ===================================================================="
puts ""

puts "# Load shape"
restore [locate_data_file bug25730_thickness8-draw-fillet001.brep] Fillet001

explode Fillet001 F

puts "# Perform offset"
offsetparameter 1e-7 p a
offsetload Fillet001 -1 Fillet001_4
offsetperform Thickness

puts "# Check result"
if { [regexp "errors" [bopcheck Fillet001]] == 1 } {
    puts "Error : bopcheck fails on initial shape"
}

if { [regexp "errors" [bopcheck Thickness]] == 1 } {
    puts "Error : bopcheck fails on offsetted shape"
}

checkview -display Fillet001 -2d -path ${imagedir}/${test_image}-Fillet001-2d.png
checkview -display Thickness -2d -path ${imagedir}/${test_image}-Thickness-2d.png