similar to: Graphing library?

Hi all, I need to write an application that gets data from a database and plots it on a graph. I am familiar with java and know that I could do it with jfreechart - however I am excited by RoR and would like to write the application with RoR instead. Is it possible to write it in RoR? Chris -- Posted via http://www.ruby-forum.com/.

Hi- I need to create simple charts on the fly - I had used JFreeChart in the past with inJ2EE apps. Is there any equivalent here for Ruby. My charting needs are simple: just line charts. Also if anyone has done this, pls let me know how I should go about in doing it. Thanks -- Posted via http://www.ruby-forum.com/.

Hi all, This might be OT. Wondering what are available charting solutions that work well with Ruby on Rails. I''ve seen reference to a few but they all seem to rely on integration with a program written in another language (requiring a seperate process per chart), Perl''s GD module for instance. Is there a 100% Ruby charting library that is freely available? Thanks, Dave

Hi, As a long time Java/J2EE exponent I wanted to give Rails a fair crack of the whip and after we evaluated it for several weeks I have to say I like it. The installation process for the base system/framework is straightforward on the two platforms we''ve tried (Windows and Mac OS X). However, the charting components available, relying on ImageMagick or GraphicsMagick seem less clear

salut je cherche des plugs pour rails pour afficher des graphes de stats. merci pour votre aide -- Posted via http://www.ruby-forum.com/.

I''m just getting started with GD2 and have successfully made a few dynamic PNGs. I need to make some fairly detailed line graphs on the fly and I know that GD2 is capable of what I want but I strongly suspect I''m reinventing the wheel badly. Are there gems or other projects that help creating complex charts? I''ve used GDChart in the distant past but I

Hi all, We are a Java development team, but we are considering rails for our next project. However in this webapplication I need to do a fair amount of charting. In Java we used JFreechart (http://www.jfree.org/jfreechart/index.php) for this purpose. What are my options for charting in Ruby? Regards, Harm de Laat -------------- next part -------------- An HTML attachment was scrubbed... URL:

Hello Railslist, I''m trying to get Gruff running on OSX Tiger (intel) with edge Rails. I''ve installed ImageMagick, Rmagick, FreeType and all their dependencies, or so I believe. (I''ve compiled them from source mostly, following a recent tutorial for Rails and ImageMagick on Intel Macs) While following the sample on the Gruff downloadpage (the one with the fruit), Rails

Hi, I am working on a project where I need to generate a chart (a bit like a pie chart, but very customised) and insert this into a PDF document. Does anybody have any advice on ruby libraries (or other techniques) for doing this? Open to suggestions? The resulting PDF will be designed for printing and so ideally should be vector throughout (or any raster images 300dpi). I was thinking of some

Hi, I want to be able create a pie chart using rails, does anyone know of any plugin''s taht could help me here? Scott -- Posted via http://www.ruby-forum.com/.

I''ve been working with Gruff to do all my apps graphing and such etc. I love it but I''m just having a hard time customizing the graphs, but this is perhaps due to my inability to comprehend the online RDocs. What I want to do is adjust the width / heights of my graphs or at the VERY LEAST the heights. It seems that if you scale a graph anywhere below 400-450px it is pretty

Hello- With a database filled with several customers'' datasets, I thought it would be a nice feature of my app''s backend interface to be able to extract (and optionally delete) the data from a single customer. It would then also be nice to rebuild that data from the stored info. What''s a good way to do this efficiently? If all the ":dependent => true"

Please open the below link... http://nubyonrails.com/pages/gruff In "Multi-Line Graph Test 400" graph. How to make white-color-line to start from 5/24(x-axis) instead of 5/6? -- Posted via http://www.ruby-forum.com/. -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to

Hi, I want to write a plugin that uses JavaScript and I am wondering how to put the static content, i.e. the JavaScript, in place? I read the documentation I found ( http://wiki.rubyonrails.org/rails/pages/Plugins and links) and looked at the listed plugins. One thing I found was that subversion seems to be a prerequisite for providing or even installing plugins. Is that right? The other thing

Hi , It comes to me that helper has some weaknesses: 1) It is hard to test . No easy way to write test code for it. (or Just i didn''t know?) 2) Not easy to reuse it on other controller/view/model. it looks like to that putting the helper code into a model (a fully helper model , or a mixed model) is good practice. However i agree that some html intensive

Hi. What is the best way to pre-populate your database with records while developing, not testing? For example, I want to: 1) > [run this command to populate db] 2) > ruby script/server 3) now I can surf to localhost:3000 and my app will already have relevant data I''m hoping to use yaml to suck it in. Is there a way to use the Fixture class to handle this even though this is

I''m having trouble installing lighttpd for local development on Mac OS X Tiger. Here are the commands I''ve run: sudo port install fcgi sudo port install lighttpd Here''s a snippet from running "port installed" with several ports removed for brevity: fcgi @2.4.0_1 (active) lighttpd @1.4.9_0 (active) rb-rubygems @0.8.11_0 (active) readline @5.0.005_0+darwin_8

Hi, Thanks Zed - this is very interesting. One item in particular caught my eye: Does anyone on this list have any comments or validation that Rails 1.2.1 is 2-4 times as slow as Rails 1.1.6? Topfunky provided a link that purports what looks like really horrible performance and memory characteristics for Rails 1.2.1, even v. 1.1.6:

When I run rake test:units I get this error: 292 tests, 350 assertions, 2 failures, 13 errors rake aborted! Command failed with status (1): [/usr/local/bin/ruby -I"lib:test" "/ usr/loc...] This error just showed up yesterday --- I have no idea how I caused it. Here is my gem list in case that helps: actionmailer (2.3.2, 2.2.2) actionpack (2.3.2, 2.2.2) activerecord (2.3.2, 2.2.2)

Fellows of the cloth -- I''m writing code that subclasses RedCloth and emits styled text that is not HTML. For example, I''m going to be emitting RTF and other formats from Textile or Markdown. I''ve got it working quite well with plainclothed RedCloth, but I can''t seem to override any of the methods in SuperRedCloth. Here''s a sample: