puts "============"
puts "OCC8842"
puts "============"
puts ""
#######################################################################
# Errors in Offset Shape algorithm working with bspline and surface of revolution
#######################################################################

set BugNumber OCC8842

if {[info commands testreadiges] == ""} {pload XSDRAW}

proc myoffset {result sh val tan} {
  if {$tan == 1} {
    offsetparameter 1e-7 p i
  } else {
    offsetparameter 1e-7 p a
  }
  uplevel offsetload $sh $val
  uplevel offsetperform $result
}

testreadiges [locate_data_file OCC8842_cylinder_CATIA.igs] a3

sewing cyl1 a3

# join type Arc
puts "***** offsetting with join type Arc"
puts "   cylinder_CATIA - 5"

if [catch { myoffset result cyl1 -5 0 } catch_result] {
  puts "${BugNumber}: Faulty (1)"
} else {

checkprops result -s 55514.4 
checkshape result
checknbshapes result -vertex 8 -edge 14 -wire 8 -face 8 -shell 1 -solid 0 -compsolid 0 -compound 0 -shape 39}

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