Converting RGB to hex just involves understanding the decimal representation of RGB. See below for a small perl procedure.
sub RGB2Hex
{
my $r = shift;
my $g = shift;
my $b = shift;
my $dec = 0;
$dec += 256*256*$r;
$dec += 256*$g;
$dec += $b;
return sprintf(“%.6x”, $dec);
}
#!/usr/bin/perl
$foo = 10;
$hexval = sprintf("%x", $foo);
$decval = hex($hexval);
print "n$foo in hex is $hexval and in dec is $decvaln";
# end
Cut and paste the above code into a new file, save it as hexdec.pl or dechex.pl or whatever and ensure that you have execute permissions. The script creates a variable, $foo with a value of your choice, (in this case 10). It will then print out it's value in hexadecimal and in decimal.
Christo
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Relevant pages:
- Perl Foreach Key Hash
A short tutorial (with free source code) that shows how to sort a Perl hash by the hash key. We also have a companion article on how to sort a Perl hash by the hash value.
- Perl Whitespace Remove
- The Superlative Horse
- Perl Appending Arrays
- Kirby Morgan Superlite 27
