puts "============"
puts "CR25300"
puts "============"
puts ""

##########################################################################################
puts "Visualization - Build wireframe representation consistent with the shape's triangulation"
#
# Case 1: Test isolines on conic shape where usual algorithm builds isos beyond the
#         shape's boundaries
##########################################################################################

pload VISUALIZATION

restore [locate_data_file bug25300_pencil.brep] aPencil

set aSimpleIsoImg $imagedir/${casename}_iso.png
set aIsoOnTrgImg $imagedir/${casename}_iso_on_triang.png

vinit View1
vclear
vaxo
vdisplay aPencil
vviewparams -scale 9787.997 -proj -0.0115 -0.9998 0.0145
vviewparams -up -0.0155 0.0147 0.9998 -at 0.0503 0 0
vsetdispmode 1

# shows that default isoline builder has problemas with proper
# construction of isolines on top of the pencil
vmoveto 200 200
vdump $aSimpleIsoImg
checkcolor 337 162 0 1 1

vmoveto 0 0

# enable isoline-on-triangulation builder
vaspects aPencil -isoontriang on

# shows that isoline-on-triangulation builder constructs isos that
# do not extend beyond the boundaries of shape's triangulation
vmoveto 200 200
vdump $aIsoOnTrgImg
checkcolor 337 162 0 0 0