motion.tcl

R. Lo Cigno, P. Larcheri 802.11e closed-loop scheduling Description: ns-2 package for 802.11e clo

set bsx [expr $opt(x) / 2.0]       ;# Position of the Base Station
set bsy [expr $opt(y) / 2.0]

$BS(0) set X_ $bsx
$BS(0) set Y_ $bsy

set pi 3.1415926535897932384626433832795029

puts $file(finish) "#\n#\tNode's Initial Positions :\n#"
puts $file(finish) [format "#\t\t%15s    x:%6.3f    y:%6.3f" "Base Station" $bsx $bsy]

# The following cycle sets the position of the wireless stations. They lie on a circumference
#   with diameter 'opt(dia)', while the Base Station is in the center

foreach j [lessof $opt(nn)] {
        set posx [expr $bsx + [expr $opt(dia) * cos([expr 2.0 * $pi * $j / $opt(nn)]) / 2]]
        set posy [expr $bsy + [expr $opt(dia) * sin([expr 2.0 * $pi * $j / $opt(nn)]) / 2]]
        $node_($j) set X_ $posx
        $node_($j) set Y_ $posy
        puts $file(finish) [format "#\t\t%15s    x:%6.3f    y:%6.3f" "Node $j" $posx $posy]
}