Where is this thing?

From: Matthew Del Buono (MattDelB_at_nospam.com)
Date: 04/28/04 

Date: Wed, 28 Apr 2004 17:26:12 -0400

My book says to:

use Canvas::Polar::GD;

.... WHERE IS IT! I tried:

CPAN> install Canvas::Polar::GD

To no avail, then tried to find it:

CPAN> i /Canvas/

Nothing there looks convincing to be what I need. What file do I need and
where do I get it?