similar to: Spider Charts and Gruff: THE JOY OF GRAPHING

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

I have some graphs and everything is working great, but I''d like to set a minimum height so to speak on the vertical scale. Is there a method to do that with Gruff? I''ve tried looking through the docs but can''t seem to get it to work. So for example, if the highest datapoint in my graph was say 500, is it possible to have the minimum vertical scale on the left set

Hi - I am creating bar and stacked bar charts in Gruff, but the problem I am having is that zero data is showing up as a thin bar. (It also seems to be that way in examples I have seen online where a zero value still shows as a thin bar or slice) It''s not a major issue to see a thin sliver on a plain bar chart, but on my stacked bar chart if I have more than one zero value in a

Hi guys i am pretty much a newbie to rails and tried to install gruff and run the example given in home page for gruff i am using ubuntu and dapper. first i got two errors when i used this example #!/usr/bin/ruby require ''rubygems'' require ''gruff'' g = Gruff::Line.new g.title = "My Graph" g.data("Apples", [1, 2, 3, 4, 4, 3])

Well, I''m trying to generate graphs using gruff, but I''m having problemns. I use, require_gem ''gruff'' then when I run g = Gruff::Line.new(475) I get uninitialized constant Gruff ///// c:/ruby/lib/ruby/gems/1.8/gems/activesupport-1.3.1/lib/active_support/dependencies.rb:100:in `const_missing''

I am using Gruff to chart 2 sets of data and have run into a problem, the numbers between the two sets are so far apart that the first set appears as a mostly straight line at the top and the second a mostly straight line at the bottom. Is there a way to set the min/max vertical column values so that I can squeeze the data closer together so that there is more ''movement''? If

Does anybody know how to create a pie chart in Gruff without percentage but actual numbers? -- 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 rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org To

I have the following as my sql query: @total = @report.report_items.find_by_sql "SELECT SUM(amount) FROM report_items WHERE report_item_selected = ''y'' AND available = ''n'' AND user_id = 1" I am trying to add the value of SUM(amount) to a Gruff pie chart and it does not seem to be working. I have the following: g.data("Items", @total)

Hi all - This is probably easy stuff for the gurus here, but anyhow, here''s a little code snippet (and a screenshot) for doing Rails time-based charts with Gruff: http://tinyurl.com/g6zrt Props to Geoffery for writing such a fine library! Yours, tom

Has anyone achieved a stable deployment of Gruff with Rmagick on Windows? I''ve been playing around with this on Instant Rails and after installing the RMagick win 32 gem (local gem install as per instructions on web) and then Gruff on top of that. I did a test controller method that rendered the fruit pie chart as per the examples on the gruff site. This worked. However, when I refreshed

Hi, I am trying to create what are called "spider diagrams" in the geochemical literature using R. A spider diagram is basically a plot of the atomic number versus the concentration on a log scale. Lines are drawn from each atomic number for each sample. Right now, my data frame looks like: SAMPLE SITE V3 LA.NASC LAATNUM CE.NASC CEATMNUM 1 1A:001

Hi all, I''ve been playing around with Gruff, love the pie chart functionality! I''m having one problem though with lots of items in the legend. It seems Gruff doesn''t handle wrapping of the legend? I couldn''t find it any of the documentation and was wondering how other people have handled this? There was a similar question posted on the Gruff Project

Hello, I used gruff library to display some of bar charts. It works fine but Gruff API documentation does not explain much like java api. So if I wanted to try some features like spacing between two bars, 3-D graph. It may be features available in Gruff library, but it is not well documented, I guess. Helpful resources would be appreciated. Thank You. Dakshesh

Hello list, I''m having a problem getting Gruff working with Rails on a Windows XP box. I installed RMagick, then Gruff via the win32 gem, and it seemed to go OK. From irb, I can do the following - require ''rubygems'' ##### This returns ''false'', but seems to work OK - require ''gruff'' ####### Ditto - g = Gruff::Bar.new etc., and I get

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

I have installed Gruff and am trying to get an example to work i found at http://tomcopeland.blogs.com/juniordeveloper/2006/02/charts_and_grap.html. I have the following code in the controller: # Send a graph to the browser def crumpetchartaction days = 5 g = Gruff::Line.new(500) g.title = "Crumpets over the past #{days} days" g.theme_keynote crumpets_to_date = []

Hi, for those with experience of Gruff module: suppose I want to send image from server straight to the browser (as example on gruff web site): send_data(g.to_blob, :disposition => ''inline'', :type => ''image/png'', :filename => "gruff.png") the server seems sending this binary data ok, but I am having

Hello, I am having a strange problem with Gruff not always displaying the graph on the page. On some pages, the graph is displayed fine. On others, however, I just get the number relating to the id of the requested item - in my case, report. Does anyone know how to solve this problem? I have the following in my controller: def create_graph g = Gruff::Line.new(290) g.title =

Gruff''s default theme is eye-catching, however, I haven''t found a way to let it present negative data correctly(as seen in the attached). Gruff''s document is also a bit old (v0.4 vs current v0.7). Anyone knows how to solve it? or any other recommendations? Thanks, Sky _______________________________________________ Rails mailing list

Hi: I love Locomotive and use it exclusively for my rails projects. I''d like to install GRUFF and give it a try (a graph image creation package). I know I can do sudo gem install gruff from the command line for normal ruby and rails. How do I make gems available to Locomotive? bruce