box b1 10 2 2
box b2 5 0 0 5 5 5
box b3 6 0 0 1 1 1

bclearobjects
bcleartools
baddobjects b1
baddtools b2 b3
bfillds
bbuild r

buildbop r0 -o b1 -t b2 b3 -op common
buildbop r1 -o b1 -t b2 b3 -op fuse
buildbop r2 -o b1 -t b2 b3 -op cut
buildbop r3 -o b1 -t b2 b3 -op tuc

foreach r {r0 r1 r2 r3} {
  checkshape $r
  if {![regexp "OK" [bopcheck $r]]} {
    puts "Error: shape is self-interfered"
  }
}

checkprops r0 -s 56 -v 20
checknbshapes r0 -vertex 16 -edge 25 -wire 12 -face 12 -shell 2 -solid 2

checkprops r1 -s 190 -v 145
checknbshapes r1 -vertex 24 -edge 38 -wire 16 -face 16 -shell 1 -solid 1

checkprops r2 -s 48 -v 20
checknbshapes r2 -vertex 8 -edge 12 -wire 6 -face 6 -shell 1 -solid 1

checkprops r3 -s 142 -v 105
checknbshapes r3 -vertex 12 -edge 18 -wire 8 -face 8 -shell 1 -solid 1