puts "======="
puts "DXF906"
puts "OCC889"
puts "OCC1013"
puts "======="
puts ""
#########################################################
## After fix OCC157 we have plane surface in face (instead bspline as in C40).
## But now checkshape founds number of errors on new face. I think that face from
## c40 is not better than in dev 
#########################################################

restore [locate_data_file DXF906.rle] a 

mkplane result a

set square 92131.6
set 2dviewer 0