puts "========"
puts "OCC28426"
puts "========"
puts ""
#################################################
# Implementation of the EdgesToFaces function
#################################################

circle cx 0 0 0 1 0 0 10
circle cy 0 0 0 0 1 0 10
circle cz 0 0 0 0 0 1 10
line lx 0 0 0 1 0 0
line ly 0 0 0 0 1 0
line lz 0 0 0 0 0 1
mkedge ex cx
mkedge ey cy
mkedge ez cz
mkedge elx lx -11 11
mkedge ely ly -11 11
mkedge elz lz -11 11
compound ex ey ez elx ely elz c

edgestofaces result c

checkshape result
checknbshapes result -face 12 -wire 12

if { [regexp "This shape seems to be OK" [bopcheck result]] != 1 } {
  puts "Error : The result is self-interfered"
}