[lib ] Scruffy 簡單好用的圖表製作

[poga (波卡)]

原本我是在這裡看到


http://www.rubyinside.com/scruffy-a-beautiful-graphing-toolkit-for-ruby-
194.html

縮：http://0rz.net/821Kv


Scruffy是一個可以很輕鬆的做出漂亮的圖表的套件

語法上也很簡潔

require 'scruffy'

graph = Scruffy::Graph.new
graph.title = "Comparative Agent Performance"
graph.value_formatter = Scruffy::Formatters::Percentage.new(:precision => 0)
graph.add :stacked do |stacked|
        stacked.add :bar, 'Jack', [30, 60, 49, 29, 100, 120]
        stacked.add :bar, 'Jill', [120, 240, 0, 100, 140, 20]
        stacked.add :bar, 'Hill', [10, 10, 90, 20, 40, 10]
end
graph.point_markers = ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun']

graph.render(:width => 800, :as => ‘JPG’)



程式碼本身就很好懂 擴充性也很強大


==

不過問題出現了

我在用gem install scruffy 安裝好這個套件之後

執行上面的程式碼 都會出現如下的錯誤訊息：

C:\RubyProgram\HelloRuby/scruffy.rb:3: uninitialized constant Scruffy
(NameError)
from C:/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in `require'
from C:/RubyProgram/HelloRuby/Scruffy.rb:1


嗯... 看起來就很像是找不到scruffy這個lib

可是我是用gem自動安裝的ㄟ 我根本沒有插手的機會阿 囧


有大大能幫忙查一下問題出在哪嗎qq  google也沒看到什麼類似情況


==

怎麼每次我要裝套件就會出問題阿.. Orz

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