OCCT

puts "============"
puts "CR26369"
puts "============"
puts ""
###################################################################################
# Modeling Data - Geom_OffsetSurface direction is wrong for indirect conical surface
###################################################################################

restore [locate_data_file bug26369_conicsurf.brep] conic_face

mksurface conic_surf conic_face
offset conic_surf_offset conic_surf 0.05
mkface conic_face_offset conic_surf_offset

set sprops_s [sprops conic_face_offset]
set cog_x  -0.00408684
set cog_y   0.00408684
set cog_z  -0.03213030
set cog_tol 0.00000010

regexp {X += +([-0-9.+eE]+)} $sprops_s full res_cog_x
regexp {Y += +([-0-9.+eE]+)} $sprops_s full res_cog_y
regexp {Z += +([-0-9.+eE]+)} $sprops_s full res_cog_z

if { ([expr abs($cog_x - $res_cog_x)] > $cog_tol)
  || ([expr abs($cog_y - $res_cog_y)] > $cog_tol)
  || ([expr abs($cog_z - $res_cog_z)] > $cog_tol) } {
  puts "Error: The center of gravity for offset of conical surface is wrong."
}