pload MODELING VISUALIZATION
psphere s 0.5
tclean  s
incmesh s 0.001
trinfo  s

vinit View1
vclear
vaxo
vcaps -vbo 0
vsetdispmode 1
vdefaults absDefl=1.0
set aMemInit [meminfo h]

set aNb 1000

# display as copies
eval compound [lrepeat $aNb s] ss
explode ss
for {set i 1} {$i <= $aNb} {incr i} { vdisplay -noupdate ss_${i}; vsetlocation -noupdate ss_${i} 0 0 s }
vfit
set aMemDisp1  [meminfo h]
vclear
set aMemClear1 [meminfo h]

# display as connected instances of single presentation
vconnectto i_1 0 0 0 s
for {set i 2} {$i < $aNb} {incr i} { vconnectto i_${i} ${i} 0 0 i_1 }
set aMemDisp2  [meminfo h]
vclear
set aMemClear2 [meminfo h]

puts "Initial memory:         [expr $aMemInit   / (1024 * 1024)] MiB"
puts "Displaying (simple):    [expr $aMemDisp1  / (1024 * 1024)] MiB"
puts "Clearing   (simple):    [expr $aMemClear1 / (1024 * 1024)] MiB"
puts "Displaying (connected): [expr $aMemDisp2  / (1024 * 1024)] MiB"
puts "Clearing   (connected): [expr $aMemClear2 / (1024 * 1024)] MiB"

Initial memory:         3 MiB
Displaying (simple):    265 MiB
Clearing   (simple):    5 MiB
Displaying (connected): 90 MiB
Clearing   (connected): 85 MiB