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Full featured ruby wrapper for Google Charts API.

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GC4R ============ Google Chart 4 Rails - Ruby wrapper for Google Charts API. Supported features: * line chart * bar chart (vertical and horizontal) * pie chart (both 2D and 3D) * title, title color and size * data colors and legend * data scaling * multiple axis Roadmap: * the remaining chart types * axis labels Example ======= 1. Hello World @chart = GoogleChart.new 2. ok, make a line chart with size 300x200 @chart = GoogleLineChart.new :width => 300, :height => 200 3. add some random data dataset = GoogleChartDataset.new :data => [10,50,4,10,16] data = GoogleChartData.new :datasets => dataset @chart = GoogleLineChart.new :width => 300, :height => 200 @chart.data = data 4. add a chart title dataset = GoogleChartDataset.new :data => [10,50,4,10,16] data = GoogleChartData.new :datasets => dataset @chart = GoogleLineChart.new :width => 200, :height => 150, :title => 'Java vs. Ruby Montly Job Opportunities' @chart.data = data 5. wow, title is too big let's wrap it dataset = GoogleChartDataset.new :data => [10,50,4,10,16] data = GoogleChartData.new :datasets => dataset @chart = GoogleLineChart.new :width => 200, :height => 150, :title => ['Java vs. Ruby', 'Montly Job Opportunities'] @chart.data = data Notice: title is now an array instead of string 6. ok now, let's add more data dataset1 = GoogleChartDataset.new :data => [10,50,4,10,16] dataset2 = GoogleChartDataset.new :data => [99, 81, 25, 54, 80] data = GoogleChartData.new :datasets => [dataset1, dataset2] @chart = GoogleLineChart.new :width => 200, :height => 150, :title => ['Java vs. Ruby', 'Montly Job Opportunities'] @chart.data = data 7. hmmmm, let's put some colors dataset1 = GoogleChartDataset.new :data => [10,50,4,10,16], :color => 'FF0000' dataset2 = GoogleChartDataset.new :data => [99, 81, 25, 54, 80], :color => '0000FF' data = GoogleChartData.new :datasets => [dataset1, dataset2] @chart = GoogleLineChart.new :width => 200, :height => 150, :title => ['Java vs. Ruby', 'Montly Job Opportunities'] @chart.data = data 8. better but not good enough, which one is java which one is ruby, let's put the legend dataset1 = GoogleChartDataset.new :data => [10,50,4,10,16], :color => 'FF0000', :title => 'Java' dataset2 = GoogleChartDataset.new :data => [99, 81, 25, 54, 80], :color => '0000FF', :title => 'Ruby' data = GoogleChartData.new :datasets => [dataset1, dataset2] @chart = GoogleLineChart.new :width => 200, :height => 150, :title => ['Java vs. Ruby', 'Montly Job Opportunities'] @chart.data = data 9. now, it will be nice to have axis dataset1 = GoogleChartDataset.new :data => [10,50,4,10,16], :color => 'FF0000', :title => 'Java' dataset2 = GoogleChartDataset.new :data => [99, 81, 25, 54, 80], :color => '0000FF', :title => 'Ruby' data = GoogleChartData.new :datasets => [dataset1, dataset2] axis = GoogleChartAxis.new :axis => [GoogleChartAxis::LEFT, GoogleChartAxis::BOTTOM] @chart = GoogleLineChart.new :width => 250, :height => 150, :title => ['Java vs. Ruby', 'Montly Job Opportunities'] @chart.data = data @chart.axis = axis 10. and two more, right and second x axis dataset1 = GoogleChartDataset.new :data => [10,50,4,10,16], :color => 'FF0000', :title => 'Java' dataset2 = GoogleChartDataset.new :data => [99, 81, 25, 54, 80], :color => '0000FF', :title => 'Ruby' data = GoogleChartData.new :datasets => [dataset1, dataset2] axis = GoogleChartAxis.new :axis => [GoogleChartAxis::LEFT, GoogleChartAxis::BOTTOM, GoogleChartAxis::RIGHT, GoogleChartAxis::BOTTOM] @chart = GoogleLineChart.new :width => 300, :height => 200, :title => ['Java vs. Ruby', 'Montly Job Opportunities'] @chart.data = data @chart.axis = axis 11. so far so good, now i want a bar chart dataset1 = GoogleChartDataset.new :data => [10,50,4,10,16], :color => 'FF0000', :title => 'Java' dataset2 = GoogleChartDataset.new :data => [99, 81, 25, 54, 80], :color => '0000FF', :title => 'Ruby' data = GoogleChartData.new :datasets => [dataset1, dataset2] axis = GoogleChartAxis.new :axis => [GoogleChartAxis::LEFT, GoogleChartAxis::BOTTOM, GoogleChartAxis::RIGHT, GoogleChartAxis::BOTTOM] @chart = GoogleBarChart.new :width => 300, :height => 200, :title => ['Java vs. Ruby', 'Montly Job Opportunities'] @chart.data = data @chart.axis = axis 12. or nice 3d pie chart dataset1 = GoogleChartDataset.new :data => 50, :color => 'FF0000', :title => 'Java' dataset2 = GoogleChartDataset.new :data => 90, :color => '0000FF', :title => 'Ruby' data = GoogleChartData.new :datasets => [dataset1, dataset2] @chart = GooglePieChart.new :width => 400, :height => 200, :title => ['Java vs. Ruby', 'Montly Job Opportunities'], :chart_type => GooglePieChart::PIE_3D @chart.data = data 13. if you like it, then install plugin: script/plugin install http://gc4r.googlecode.com/svn/trunk/ in controller: class AnalysisController < ApplicationController use_google_charts def index # prepare some nice charts here @chart = GoogleChart.new end end in view: <%= image_tag @chart.to_url %> Copyright (c) 2008 Iulian Costan, released under the MIT license

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License
Ruby's Rails' (MIT) GPL LGPL BSD Apache Artistic PublicDomain BSD-type Free-Trial Free-but-Restricted OpenSource Proprietary Shareware Source-available-proprietary Commercial

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Assets Controllers Internationalization Misc. Enhancements Model Rails Engines Searching and Queries Security Statistics and Logs Testing View Extensions