That sounds pretty straight forward stuff. The key probably is in selecting a module such as Tk to manage the user interface and drawing for you.

You might like to start by looking at Tk Tutorial, Featuring Your Very Own "Perl Sig/OBFU Decoder Ring" in the Tutorials section to get somethingof the flavour of using Tk

Image-Maps-Plot-FromLatLong

Are you thinking of accessing, say, Google Earth or something similar?

There is a nice program in Wicked Cool Perl Scripts that uses http://terraserver.microsoft.com. Code for Wicked Cool Perl Scripts may be found here.

HTH,

#!/usr/bin/perl
use Tk;
#to change the background color, edit the ps file
#  0.000 0.000 0.000 setrgbcolor AdjustColor
#  fill

$width = 800;
$height = 500;
my $main = MainWindow->new();
my $canvas = $main->Canvas( -width=>$width, -height=>$height, -backgro
+und=>"black");
$canvas->pack( -expand=>1,-fill=>'both');

&create;

$canvas->update;
$main->update;

$main->Button(
    -text    => "Save",
    -command => [sub {
         $canvas->update;
         my @capture=();
         my ($x0,$y0,$x1,$y1)=$canvas->bbox('all');
         @capture=('-x'=>$x0,'-y'=>$y0,-height=>$y1-$y0,-width=>$x1-$x
+0);
         $canvas -> postscript(-colormode=>'color',
                               -file=>$0.'.ps',
                   -rotate=>0,
                   -width=>800,
                   -height=>500,    
                   @capture);
                               
                  } 
   
  ]  )->pack;
 

MainLoop;

sub create{
$canvas->createOval(100, 100, 600, 600,-fill=>'green')

}
[download]

Hi blhoward2, welcome to PerlMonks. :)

One way you might start off very simply is to use a module like GD to do the drawing. That is, write a simple program that reads a plain text config file containing the relevant parameters, then uses GD to generate an image file.

Then, later, when you're happy with that, you can consider at that point if you want to use something like Tk to add a GUI. Regarding GUI's btw, I remember reading a TPR article recently about using Glade and GTK+ to make GUI programs and it looked pretty nice.

Hi,

Is there any special reason for coding it? Can't you use one of these damn simple CAD application on Freshmeat?

Regards,