Hi folks,

I'm having some trouble allocating colors with GD. Right now, I have the following code: 

my %angles;  #I get angles from a file
my ($key1, $key2, @colors);
my ($i, $j) = 0;
my $red_val= 0;
my $yellow_val = 90;
my $green_val = 180;
my $angle;
my $im = new GD::Image (150, 1500);
foreach $key1 (sort (keys %angles)) {
     foreach $key2 (sort (keys %{$angles{$key1}})) {
            $angle = ${$angles{$key1}}{$key2}
            if ($angle <= $yellow_val) {
                $colors[$i]->[$j] = $im->colorAllocate(255, 255*(($ang
+le-$red_val)/($yellow_val-$red_val)), 0);
            } else {
                 $colors[$i]->[$j] = $im->colorAllocate(255*(($green_v
+al - $angle)/($yellow_val - $red_val)), 255*(1-(1-($angle-$green_val)
+/($yellow_val-$green_val)))*.5, 0);
            }
            $j++;
       }
       $j = 0;
       $i++;
}

[download]
My problem is that when I allocate all these colors (%angles contains about 1000 values) the $im turns a funny color, and I can't print anything. What I'm trying to do is print 1000 of these circles out onto a file and display it. Thanks for any help you can give!

In reply to Allocating colors with GD by Evanovich

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.