OCCT

puts "============="
puts "0031412: Visualization - entity behind is returned as topmost at the edges"
puts "============="

pload VISUALIZATION
box b1 250 250 900 1000 1000 200
box b2 1000 1000 1000
vdisplay -dispMode 1 b1 b2
vaspects b1 -setWidth 3 -setColor ORANGE
vaspects b2 -setWidth 3 -setColor MATRABLUE
vrenderparams -shadingModel UNLIT

vviewparams -proj 0 0 1
vfit
vmoveto 325 100
if { [vreadpixel 325 400 rgb name] == "CYAN" } { puts "ERROR: back box is misdetected" }
vpoint p1 -2d -nosel 325 100
vdump $imagedir/${casename}_proj_Z.png
vremove p1

vviewparams -proj 0 1 0
vfit
vmoveto 200 58
if { [vreadpixel 400 58 rgb name] == "CYAN" } { puts "ERROR: back box is misdetected" }
vpoint p2 -2d -nosel 200 58
vdump $imagedir/${casename}_proj_Y.png
vremove p2

vviewparams -proj 1 0 0
vfit
vmoveto 200 58
if { [vreadpixel 50 58 rgb name] == "CYAN" } { puts "ERROR: back box is misdetected" }
vpoint p3 -2d -nosel 200 58
vdump $imagedir/${casename}_proj_X.png
vremove p3
vdump ${imagedir}/${casename}.png