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

circle c1 0 0 0 0 0 1 10
circle c2 -2 0 0 0 0 1 5
circle c3 2 0 0 0 0 1 5

mkedge e1 c1
mkedge e2 c2
mkedge e3 c3

compound e1 e2 e3 c

edgestofaces result c

checkshape result
checknbshapes result -face 4 -wire 5

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