h1. OpenFlashChartLazy
This plugin allows to use the OpenFlashChart version 2 with Rails.
The idea is to get it as simple and extensible as possible, support future change of open_flash_chart
Initially will only support line and pie graph, but is easy to add support for the other graphs
I built it to solve a problem, not all the problems that we can have in the world ;-)
h2. Todo
* More doc * Support for other graphs * Label annotation for pies * May be more specs? mmm * Add series matcher block to allow any kind of matcher for series * Avoid to specify the start_date for time series for each serie * Add periodically_call_remote_graph (rodrigo orrego chileonrails)
h2. Known issues
* Not support for 2 graphs inline yet. * Inline graph not compatible with prototype.js
h2. Install

cd vendor/plugins
git clone git://github.com/peterpunk/open_flash_chart_lazy.git
cd ..
cd ..
rake open_flash_chart_lazy:install

h2. Uninstall

rake open_flash_chart_lazy:remove

h2. Examples
h3. With remote data
h4. In the controller

def progress
  bar_graph = OpenFlashChartLazy::Line.new("The title of the graph")
  first_serie = OpenFlashChartLazy::Serie.new(
  [["2008-1",100],["2008-2",120],["2008-3",130]],
  {:title=>"Argentina",:start_date=>Time.mktime(2008,1,1),:items=>8})

  second_serie = OpenFlashChartLazy::Serie.new(
  [["2008-1",50],["2008-2",40],["2008-3",90]],
  {:title=>"Tupungato",:start_date=>Time.mktime(2008,1,1),:items=>8})

  bar_graph.add_serie(first_serie)
  bar_graph.add_serie(second_serie)

  render :text=>bar_graph.to_graph_json
end

h4. In the view

<%= remote_graph("my_chart",{:route=>"/admin/dashboard/progress"}) %>

h3. With inline data
h4. In the controller

def show
  @pie_chart = OpenFlashChartLazy::Pie.new("Channels")
  channels=OpenFlashChartLazy::Serie.new([["Wealth",34],["Financial",45]])
  @pie_chart.add_serie(channels)
end

h4. In the view

<%= inline_graph(@pie_chart) %>

h4. Customize the Chart
All graph attributes are hash in general so you can add what you need and if the open_flash_chart add new parameters, just add them.

bar_graph.x_axis[:labels][:rotate]="vertical" 
bar_graph.x_axis[:labels][:rotate]="vertical" 
bar_graph.x_axis[:colour]="#808080" 
bar_graph.x_axis["grid-colour"]="#A0A0A0" 
bar_graph.x_axis[:stroke]=0.5

bar_graph.y_axis[:colour]="#808080" 
bar_graph.y_axis[:stroke]=0.5
bar_graph.y_axis["grid-colour"]="#A0A0A0" 

h4. Background attributes
You can specify all of them, this is handle by method missing so just use like this.

bar_graph.bg_colour="#FFFFFF" 

h3. Other implementations for version 2
http://github.com/korin/open_flash_chart_2/tree/master may be not working yet
h3. Implementations for version 1
http://github.com/markcatley/open_flash_chart/tree/master
Enjoy!
Copyright© 2008 Pedro Visintin, released under the MIT license