# test for #22778: compare number of triangles in triangulation
# produced on surface converted to nurbs, against number of triangles on
# original analytic (spherical) surface

puts "TODO #22778 All: too many triangles"

# original face on spherical surface
restore [locate_data_file bug22778_square.brep] s
checkshape s
incmesh s 0.001
set trinfo_s [trinfo s]
regexp {([0-9]+) triangles} $trinfo_s str nbtri_s

# face converted to NURBS
nurbsconvert r s
checkshape r
incmesh r 0.001
set trinfo_r [trinfo r]
regexp {([0-9]+) triangles} $trinfo_r str nbtri_r


# check deflections
checktrinfo s -tri -defl 0.001 -tol_abs_defl 1e-6
checktrinfo r -tri -max_defl 0.001 -tol_abs_defl 1e-6

# compare number of triangles, allow twice more
set exptri_s [expr 2. * $nbtri_s]
if { $nbtri_r > $exptri_s } {
    puts "Error: too many triangles ($nbtri_r, while ~ $exptri_s would be sufficient)"
}

# extra check: deflection on rough mesh on NURBS
tclean r
incmesh r 0.1
checktrinfo r -max_defl 0.1