puts "TODO OCC25925 ALL: ERROR. offsetperform operation not done."
puts "============"
puts "OCC5806"
puts "============"
puts ""
######################################################
# BRepOffsetAPI_MakeThickSolid fails to build a result
######################################################

set BugNumber OCC5806

puts "demonstration of pipes and hollowing for GTISoft"
puts ""
puts "Scenario 3A: Hollowed general pipe - ThroughSection with following shell reconstruction"

circle c 0 100 0 1 0 0 5 
mkedge ec c
wire wc ec
polyline pl 10 90 -10  10 90 10  10 110 10  10 110 -10  10 90 -10

if { [catch { thrusections resthru 1 1 wc pl } catch_result] } {
   puts "Faulty ${BugNumber} : thrusections is wrong"
}

# straighforward hollowing will fail due to problems in the algorithm
explode resthru f

if { [catch { offsetshape result resthru -0.5 resthru_6 resthru_7 } catch_result] } {
   puts "Faulty ${BugNumber} : offsetshape is wrong"
}

checkmaxtol result -min_tol 1.

checkprops result -s 1116.06 
checkshape result

checknbshapes result -vertex 10 -edge 15 -wire 7 -face 7 -shell 1 -solid 1 -compsolid 0 -compound 0 -shape 41
checkview -display result -2d -path ${imagedir}/${test_image}.png