OCCT

puts "============"
puts "OCC727"
puts "============"
puts ""
#############################
## The second object can not be deselected.
#############################

box a 10 10 10
box b 50 50 50 10 10 10

vinit
vdisplay a
vdisplay b
vfit

set x1 60
set y1 300
set x2 350
set y2 120

vselect 0 0
vselect ${x1} ${y1}
vselect ${x2} ${y2} -xor

set NbSelected1 [vnbselected]
if { ${NbSelected1} != 2 } {
  puts "Error : (case 1)"
}

vselect ${x2} ${y2} -xor

set NbSelected1 [vnbselected]
if { ${NbSelected1} != 1 } {
  puts "Error : (case 2)"
}

vdump $imagedir/${casename}.png