puts "================= OCC291 ==================="

#################################################################
## Some triangles of shading mesh are outside of shape boundaries. (See attached shape). 
#################################################################

restore [locate_data_file shading_171.brep] result
checkshape result

tclean result
vinit
vdisplay result
vsetdispmode result 1
vfit

isos result 0
triangles result

checktrinfo result -tri 522 -nod 426
checkprops result -s 376.873 
checkview -screenshot -3d -path ${imagedir}/${test_image}.png