Graphing in ruby

[Tom Malone]

I need to do some x /y plots in ruby for a rails app, with a log scale, does anyone know of any gems / libraries that can do this.

Tom

[Frederick Cheung]

On 2 Oct 2007, at 12:03, Tom Malone wrote:

> I need to do some x /y plots in ruby for a rails app, with a log
> scale, does anyone know of any gems / libraries that can do this.
>

gruff is pretty nice, but doesn't do the log scale out of the box. It
shouldn't be hard to do the log bit yourself though. There's also
scruffy, but I haven't used that one

Fred

[MartinBTT]

Check out ChartDirector:
http://www.advsofteng.com/

[Klaus Kaempf]

* Tom Malone <tomjm...@gmail.com> [Oct 02. 2007 13:03]:

> I need to do some x /y plots in ruby for a rails app, with a log scale, does
> anyone know of any gems / libraries that can do this.

gdchart (see http://raa.ruby-lang.org/project/gdchart) is quite good
although no longer actively maintained.

gruff (http://nubyonrails.com/pages/gruff) also look promising
and its website as also an 'Other graphing software' section.

Hth,

Klaus
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[Pablo Castellazzi]

http://blogs.tech-recipes.com/johnny/2006/08/29/ruby-on-rails-beautiful-charts-made-easy-using-flash-with-rails-rxml-templates/
this works for me, the basic idea is generate xml on server side and
use a flash program on the client to build the plot.

There is also some plugins around that do the same ... but they work
with the same flash library and ideas.