3D Pie Chart

[Ruby On Rails Version - Controller] app/controllers/threedpie_controller.rb

require("chartdirector")

class ThreedpieController < ApplicationController

    def index()
        @title = "3D Pie Chart"
        @ctrl_file = File.expand_path(__FILE__)
        @noOfCharts = 1
        render :template => "templates/chartview"
    end

    #
    # Render and deliver the chart
    #
    def getchart()
        # The data for the pie chart
        data = [25, 18, 15, 12, 8, 30, 35]

        # The labels for the pie chart
        labels = ["Labor", "Licenses", "Taxes", "Legal", "Insurance", "Facilities", "Production"]

        # Create a PieChart object of size 360 x 300 pixels
        c = ChartDirector::PieChart.new(360, 300)

        # Set the center of the pie at (180, 140) and the radius to 100 pixels
        c.setPieSize(180, 140, 100)

        # Add a title to the pie chart
        c.addTitle("Project Cost Breakdown")

        # Draw the pie in 3D
        c.set3D()

        # Set the pie data and the pie labels
        c.setData(data, labels)

        # Explode the 1st sector (index = 0)
        c.setExplode(0)

        # Output the chart
        send_data(c.makeChart2(ChartDirector::PNG), :type => "image/png", :disposition => "inline")

    end

end

[Ruby On Rails Version - View] app/views/templates/chartview.html.erb

<html>
<body style="margin:5px 0px 0px 5px">

<!-- Title -->
<div style="font-size:18pt; font-family:verdana; font-weight:bold">
    <%= @title %>
</div>
<hr style="border:solid 1px #000080" />

<!-- Source Code Listing Link -->
<div style="font-size:9pt; font-family:verdana; margin-bottom:1.5em">
    <%= link_to "Source Code Listing", 
        :controller => "cddemo", :action => "viewsource",
        :ctrl_file => @ctrl_file, :view_file => File.expand_path(__FILE__) %>
</div>

<!-- Create one or more IMG tags to display the demo chart(s) -->
<% 0.upto(@noOfCharts - 1) do |i| %>
    <img src="<%= url_for(:action => "getchart", :img => i) %>">
<% end %>

</body>
</html>

[Command Line Version] rubydemo/threedpie.rb

#!/usr/bin/env ruby
require("chartdirector")

# The data for the pie chart
data = [25, 18, 15, 12, 8, 30, 35]

# The labels for the pie chart
labels = ["Labor", "Licenses", "Taxes", "Legal", "Insurance", "Facilities", "Production"]

# Create a PieChart object of size 360 x 300 pixels
c = ChartDirector::PieChart.new(360, 300)

# Set the center of the pie at (180, 140) and the radius to 100 pixels
c.setPieSize(180, 140, 100)

# Add a title to the pie chart
c.addTitle("Project Cost Breakdown")

# Draw the pie in 3D
c.set3D()

# Set the pie data and the pie labels
c.setData(data, labels)

# Explode the 1st sector (index = 0)
c.setExplode(0)

# Output the chart
c.makeChart("threedpie.png")