puts "============"
puts "OCC28196: Modeling Data - Algorithm 'Extrema_GenLocateExtPS' finds wrong extremum in a case"
puts "==========="
puts ""

pload MODELING

restore [locate_data_file bug28196.brep] f

mksurface s f
dset x 5.97447220497284
dset y 0.0187851531995338
dset z 0.433545417254429
dset u 13140.3030987283
dset v 28.5494495724281
set max_tol 1e-5

proj s x y z
set dist_proj [lindex [length ext_1] end]
proj s x y z u v
set dist_proj_uv [lindex [length ext_1] end]

puts "Distance of standard projection $dist_proj"
puts "Distance of projection with starting point $dist_proj_uv"

if {[expr $dist_proj_uv - $dist_proj] > $max_tol} {
  puts "Error: projection with starting point is worse than standard projection"
} else {
  puts "OK: well projection with starting point"
}