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_Ideas.igs] a4

DT_ShapeDivide cyl2 a4

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

if [catch { myoffset result cyl2 -5 0 } catch_result] {
  puts "${BugNumber}: Faulty (1)"
} else {

set square 20106.2
checknbshapes result -vertex 6 -edge 9 -wire 5 -face 5 -shell 1 -solid 1 -compsolid 0 -compound 0 -shape 27
}

set 2dviewer 0