puts "========================"
puts " OCC258 "
puts "(case 1)"
puts "========================"

restore [locate_data_file shading_143.brep] result
checkshape result

tclean result
isos result 0
vinit 
vdisplay result
vsetdispmode result 1
vfit
triangles result

checktrinfo result -tri 100 -nod 102
checkview -screenshot -3d -path ${imagedir}/${test_image}.png