GD ColorMixer Example

CGI On-The-Fly ColorMixer Graphic

Along the same lines as the Percent Bar, I created a color mixer. The color mixer takes Red, Green and Blue values between 0 and 255, and shows the color mixture using three overlapping circles.

I set this up, primarily, for my own use. It has a built-in demo-mode, which is functionally complete. View it live below:

/cgi-bin/gd_colormix.cgi

The code can be used as a guide for someone else who wants to get started using Perl with GD. You can view and download the code here:

gd_colormix.cgi.pl.