3D Scatter Chart (2)

[Ruby On Rails Version - Controller] app/controllers/threedscatter2_controller.rb

require("chartdirector")

class Threedscatter2Controller < ApplicationController

    def index()
        @title = "3D Scatter Chart (2)"
        @ctrl_file = File.expand_path(__FILE__)
        @noOfCharts = 1
        render :template => "templates/chartview"
    end

    #
    # Render and deliver the chart
    #
    def getchart()
        # The XYZ data for the 3D scatter chart as 3 random data series
        r = ChartDirector::RanSeries.new(3)
        xData = r.getSeries2(20, 100, -10, 10)
        yData = r.getSeries2(20, 100, -10, 10)
        zData = r.getSeries2(20, 100, -10, 10)

        # Create a ThreeDScatterChart object of size 720 x 520 pixels
        c = ChartDirector::ThreeDScatterChart.new(720, 520)

        # Add a title to the chart using 20 points Times New Roman Italic font
        c.addTitle("3D Scatter Chart (2)  ", "timesi.ttf", 20)

        # Set the center of the plot region at (350, 240), and set width x depth x height to 360 x
        # 360 x 270 pixels
        c.setPlotRegion(350, 240, 360, 360, 270)

        # Set the elevation and rotation angles to 15 and 30 degrees
        c.setViewAngle(15, 30)

        # Add a scatter group to the chart using 13 pixels glass sphere symbols, in which the color
        # depends on the z value of the symbol
        g = c.addScatterGroup(xData, yData, zData, "", ChartDirector::GlassSphere2Shape, 13,
            ChartDirector::SameAsMainColor)

        # Add grey (888888) drop lines to the symbols
        g.setDropLine(0x888888)

        # Add a color axis (the legend) in which the left center is anchored at (645, 220). Set the
        # length to 200 pixels and the labels on the right side. Use smooth gradient coloring.
        c.setColorAxis(645, 220, ChartDirector::Left, 200, ChartDirector::Right).setColorGradient()

        # Set the x, y and z axis titles using 10 points Arial Bold font
        c.xAxis().setTitle("X-Axis Place Holder", "arialbd.ttf", 10)
        c.yAxis().setTitle("Y-Axis Place Holder", "arialbd.ttf", 10)
        c.zAxis().setTitle("Z-Axis Place Holder", "arialbd.ttf", 10)

        # 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/threedscatter2.rb

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

# The XYZ data for the 3D scatter chart as 3 random data series
r = ChartDirector::RanSeries.new(3)
xData = r.getSeries2(20, 100, -10, 10)
yData = r.getSeries2(20, 100, -10, 10)
zData = r.getSeries2(20, 100, -10, 10)

# Create a ThreeDScatterChart object of size 720 x 520 pixels
c = ChartDirector::ThreeDScatterChart.new(720, 520)

# Add a title to the chart using 20 points Times New Roman Italic font
c.addTitle("3D Scatter Chart (2)  ", "timesi.ttf", 20)

# Set the center of the plot region at (350, 240), and set width x depth x height to 360 x 360 x 270
# pixels
c.setPlotRegion(350, 240, 360, 360, 270)

# Set the elevation and rotation angles to 15 and 30 degrees
c.setViewAngle(15, 30)

# Add a scatter group to the chart using 13 pixels glass sphere symbols, in which the color depends
# on the z value of the symbol
g = c.addScatterGroup(xData, yData, zData, "", ChartDirector::GlassSphere2Shape, 13,
    ChartDirector::SameAsMainColor)

# Add grey (888888) drop lines to the symbols
g.setDropLine(0x888888)

# Add a color axis (the legend) in which the left center is anchored at (645, 220). Set the length
# to 200 pixels and the labels on the right side. Use smooth gradient coloring.
c.setColorAxis(645, 220, ChartDirector::Left, 200, ChartDirector::Right).setColorGradient()

# Set the x, y and z axis titles using 10 points Arial Bold font
c.xAxis().setTitle("X-Axis Place Holder", "arialbd.ttf", 10)
c.yAxis().setTitle("Y-Axis Place Holder", "arialbd.ttf", 10)
c.zAxis().setTitle("Z-Axis Place Holder", "arialbd.ttf", 10)

# Output the chart
c.makeChart("threedscatter2.png")