Rails Library for Generating Graphs and Charts

rubyonrails-talk
1

Hello Friends,

Hope all are doing well.

I was seeking some guidance on open-source, stable, efficient and better library (plugin/gem) for generating chars and graphs in rails.

here i am looking for graphs/charts with multiple scale in a single axis. also i am having concerns for exporting charts in some of report like pdf or image etc.

Please let me your thoughts/experience/guidance on this.

Thanks, Piyush.

2

Use gruff charts or google charts... Gruff Charts: http://nubyonrails.com/pages/gruff google charts: http://blog.brijeshshah.com/google-chart-4-rails-gc4r/

This plugins helps you generating charts in form of images..

3

Or, the free Open Flash Chart, which uses Flash to render charts, just like google’s does:

http://teethgrinder.co.uk/open-flash-chart/

And, ofcourse, someone already developed a plug-in for RoR:

http://pullmonkey.com/projects/open_flash_chart

But none of these 3 chart ‘components’ allow the user to ‘zoom in’ and ‘scroll’ the view… I’m still searching for something like this. Preferably, it would request ‘JSON’ / ‘XML’ data real-time as the user scrolls to or zooms to regions of the chart… Or did I not read the Google Chart API docs that well?

4

Nope. Google’s charts are straight images, so they are generally the

better choice. There is usually little reason to force Flash on your

users for something this simple.

Indeed they are, images, I saw that too. But you will not be able to generate these charts when a user is not online, would you? Or, not able to connect to google (like in a very strict intranet environment :wink: )

if you want the charts to be ‘interactive’, though, (like zooming and scrolling around the data real-time) Flash is not that bad. I admit, I hate to use it too, but OpenFlashChart is the only open source component I could find that delivers almost all this functionality without requiring a connection to some other website…

5

Thank You Very much friends for your valuable suggestions. i will evaluate these various options.

Thanks, Piyush.

6

Hi, I have used fusion charts and its cool, i believe there is no flash type charts that are available for free.

Regards, Syed A B.

7

Thanks for highlighting. Any one has used it? Any inputs on Open Flash Chart is free.

8

Open Flash chart works like a charm, just disable all ‘animations’ and your client will take you seriously :wink:

I have used it for a prototype application with Symfony (yes, I know, PHP…) but for the ‘real’ application I’m setting everything up with Rails.