puts "========"
puts "OCC264"
puts " (case 6)"
puts "========"

restore [locate_data_file OCC264_06.brep] result 
checkshape result

tclean result
vinit
vdisplay result
vclear

isos result 0
triangles result

#smallview
#fit

set tri_info [trinfo result]
regexp { +([-0-9.+eE]+) +triangles} $tri_info full tri
regexp { +([-0-9.+eE]+) +nodes} $tri_info full nod

if { $tri != 18 && $nod != 20 }  {
    puts "Faulty OCC264_6: here is shading problem"
} else {
    puts "Shading of OCC264_6 is OK"
}

set square 19.2399
set 3dviewer 0