NAM colors,annotations

Hello pals, 

                   One can always enchance the look and feel of  NAM UI . it mainly helpful while demonstrating to others. 

                   Colors , annotations, labels, packet colors, control play back all these plays vital role in enriching NAM animator in Ns-2

                   We will see one by one . 

   

1. Wired Link options

$ns duplex-link-op $n1 $n2 label “user defined text here”

$ns duplex-link-op $n1 $n2 color blue

$ns duplex-link-op $n1 $n2 label-at up

$ns duplex-link-op $n1 $n2 label-color green

2. Node options — color, shape, label

    $n1 ---> means node 1 that you defined in your Tcl file . 

$n1 color blue    // sets the node color to blue
$n1 shape hexagon

$n1 label-at up // sets the label up the link
$n2 label “user defined text here”   // sets for node 2
$n2 label-color green // label color set to green

3.Packet colors

$agent set fid_ $node
$ns color $node blue 
4. Control playback
$ns set-animation-rate 3ms   // control playback time in milli seconds

5. Annotation

set text "this is annotation shows at run time of nam"

set time 4.0
$ns at $time “$ns trace-annotate $text”  // at 4.0 , an annotation will display 

 //  its highly useful when packet transfer completed or show some attacks in the networks.transmission rate, no of nodes in the network etc..