What do you use to create Graphs\3D in ruby? GD?GD-2?

I want to create some graphs from logs I analyze.
I noticed that there are couple options in rubygems:
ruby-gd
gd2
rgd

I am using ruby 1.9.3p125 so "ruby-gd" wont even install,
gd2 will give me some troubles.
and for rgd I didnt found any examples of implementing in ruby and i'm kind of lost in where to start\look.

another thing I want is to create 3D graphs and yet I need to create a basic one and to move on..

Thanks,
Eliezer

···

--
Eliezer Croitoru
https://www1.ngtech.co.il
IT consulting for Nonprofit organizations
eliezer <at> ngtech.co.il