OCCT

puts "========================================================================="
puts "OCC32864: Normal projection of a wire on a cylinder produces wrong result"
puts "========================================================================="
puts ""

restore [locate_data_file bug32864.brep] a
explode a

nproject result a_2 a_1

checkshape result

checknbshapes result -t -edge 8 -vertex 16

set tolres [checkmaxtol result]

if { ${tolres} > 0.0001} {
   puts "Error: bad tolerance of result"
}

checkprops result -l 37.1616