ChartDirector 6.0 (Ruby Edition)
Inter-Line Coloring
Source Code Listing
require("chartdirector") class LinefillController < ApplicationController def index() @title = "Inter-Line Coloring" @ctrl_file = File.expand_path(__FILE__) @noOfCharts = 1 render :template => "templates/chartview" end # # Render and deliver the chart # def getchart() # The data for the line chart data0 = [70, 73, 80, 90, 95, 93, 82, 77, 82, 101, 111, 115] data1 = [90, 96, 89, 77, 82, 96, 109, 109, 99, 108, 96, 91] data2 = [58, 34, 25, 49, 64, 10, 16, 40, 25, 49, 40, 22] # The labels for the line chart labels = ["2008-01", "2008-02", "2008-03", "2008-04", "2008-05", "2008-06", "2008-07", "2008-08", "2008-09", "2008-10", "2008-11", "2008-12"] # Create a XYChart object of size 450 x 450 pixels c = ChartDirector::XYChart.new(450, 450) # Add a title to the chart using 15pt Arial Italic font. title = c.addTitle("Inter-line Coloring", "ariali.ttf", 15) # Add a legend box where the top-center is anchored to the horizontal center of the chart, # just under the title. Use horizontal layout and 10 points Arial Bold font, and transparent # background and border. Use line style legend key. legendBox = c.addLegend(c.getWidth() / 2, title.getHeight(), false, "arialbi.ttf", 10) legendBox.setBackground(ChartDirector::Transparent, ChartDirector::Transparent) legendBox.setAlignment(ChartDirector::TopCenter) legendBox.setLineStyleKey() # Tentatively set the plotarea at (70, 65) and of (chart_width - 100) x (chart_height - 110) # in size. Use light grey (c0c0c0) border and horizontal and vertical grid lines. plotArea = c.setPlotArea(70, 65, c.getWidth() - 100, c.getHeight() - 110, -1, -1, 0xc0c0c0, 0xc0c0c0, -1) # Add a title to the y axis using 12pt Arial Bold Italic font c.yAxis().setTitle("Axis Title Placeholder", "arialbi.ttf", 12) # Add a title to the x axis using 12pt Arial Bold Italic font c.xAxis().setTitle("Axis Title Placeholder", "arialbi.ttf", 12) # Set the axes line width to 3 pixels c.xAxis().setWidth(3) c.yAxis().setWidth(3) # Set the labels on the x axis. c.xAxis().setLabels(labels) # Use 8 points Arial rotated by 90 degrees as the x-axis label font c.xAxis().setLabelStyle("arial.ttf", 8, ChartDirector::TextColor, 90) # Add a spline curve to the chart layer0 = c.addSplineLayer(data0, 0xff0000, "Data Set 0") layer0.setLineWidth(2) # Add a normal line to the chart layer1 = c.addLineLayer(data1, 0x008800, "Data Set 1") layer1.setLineWidth(2) # Color the region between the above spline curve and normal line. Use the semi-transparent # red (80ff000000) if the spline curve is higher than the normal line, otherwise use # semi-transparent green (80008800) c.addInterLineLayer(layer0.getLine(), layer1.getLine(), 0x80ff0000, 0x80008800) # Add another normal line to the chart layer2 = c.addLineLayer(data2, 0x0000ff, "Data Set 2") layer2.setLineWidth(2) # Add a horizontal mark line to the chart at y = 40 mark = c.yAxis().addMark(40, -1, "Threshold") mark.setLineWidth(2) # Set the mark line to purple (880088) dash line. Use white (ffffff) for the mark label. mark.setMarkColor(c.dashLineColor(0x880088), 0xffffff) # Put the mark label at the left side of the mark, with a purple (880088) background. mark.setAlignment(ChartDirector::Left) mark.setBackground(0x880088) # Color the region between the above normal line and mark line. Use the semi-transparent # blue (800000ff) if the normal line is higher than the mark line, otherwise use # semi-transparent purple (80880088) c.addInterLineLayer(layer2.getLine(), mark.getLine(), 0x800000ff, 0x80880088) # Layout the legend box, so we can get its height c.layoutLegend() # Adjust the plot area size, such that the bounding box (inclusive of axes) is 10 pixels # from the left edge, just under the legend box, 25 pixels from the right edge, and 10 # pixels from the bottom edge. c.packPlotArea(10, legendBox.getTopY() + legendBox.getHeight(), c.getWidth() - 25, c.getHeight() - 10) # After determining the exact plot area position, we may adjust the legend box and the title # positions so that they are centered relative to the plot area (instead of the chart) legendBox.setPos(plotArea.getLeftX() + (plotArea.getWidth() - legendBox.getWidth()) / 2, legendBox.getTopY()) title.setPos(plotArea.getLeftX() + (plotArea.getWidth() - title.getWidth()) / 2, title.getTopY()) # Output the chart send_data(c.makeChart2(ChartDirector::PNG), :type => "image/png", :disposition => "inline") end end |
<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> |
#!/usr/bin/env ruby require("chartdirector") # The data for the line chart data0 = [70, 73, 80, 90, 95, 93, 82, 77, 82, 101, 111, 115] data1 = [90, 96, 89, 77, 82, 96, 109, 109, 99, 108, 96, 91] data2 = [58, 34, 25, 49, 64, 10, 16, 40, 25, 49, 40, 22] # The labels for the line chart labels = ["2008-01", "2008-02", "2008-03", "2008-04", "2008-05", "2008-06", "2008-07", "2008-08", "2008-09", "2008-10", "2008-11", "2008-12"] # Create a XYChart object of size 450 x 450 pixels c = ChartDirector::XYChart.new(450, 450) # Add a title to the chart using 15pt Arial Italic font. title = c.addTitle("Inter-line Coloring", "ariali.ttf", 15) # Add a legend box where the top-center is anchored to the horizontal center of the chart, just # under the title. Use horizontal layout and 10 points Arial Bold font, and transparent background # and border. Use line style legend key. legendBox = c.addLegend(c.getWidth() / 2, title.getHeight(), false, "arialbi.ttf", 10) legendBox.setBackground(ChartDirector::Transparent, ChartDirector::Transparent) legendBox.setAlignment(ChartDirector::TopCenter) legendBox.setLineStyleKey() # Tentatively set the plotarea at (70, 65) and of (chart_width - 100) x (chart_height - 110) in # size. Use light grey (c0c0c0) border and horizontal and vertical grid lines. plotArea = c.setPlotArea(70, 65, c.getWidth() - 100, c.getHeight() - 110, -1, -1, 0xc0c0c0, 0xc0c0c0, -1) # Add a title to the y axis using 12pt Arial Bold Italic font c.yAxis().setTitle("Axis Title Placeholder", "arialbi.ttf", 12) # Add a title to the x axis using 12pt Arial Bold Italic font c.xAxis().setTitle("Axis Title Placeholder", "arialbi.ttf", 12) # Set the axes line width to 3 pixels c.xAxis().setWidth(3) c.yAxis().setWidth(3) # Set the labels on the x axis. c.xAxis().setLabels(labels) # Use 8 points Arial rotated by 90 degrees as the x-axis label font c.xAxis().setLabelStyle("arial.ttf", 8, ChartDirector::TextColor, 90) # Add a spline curve to the chart layer0 = c.addSplineLayer(data0, 0xff0000, "Data Set 0") layer0.setLineWidth(2) # Add a normal line to the chart layer1 = c.addLineLayer(data1, 0x008800, "Data Set 1") layer1.setLineWidth(2) # Color the region between the above spline curve and normal line. Use the semi-transparent red # (80ff000000) if the spline curve is higher than the normal line, otherwise use semi-transparent # green (80008800) c.addInterLineLayer(layer0.getLine(), layer1.getLine(), 0x80ff0000, 0x80008800) # Add another normal line to the chart layer2 = c.addLineLayer(data2, 0x0000ff, "Data Set 2") layer2.setLineWidth(2) # Add a horizontal mark line to the chart at y = 40 mark = c.yAxis().addMark(40, -1, "Threshold") mark.setLineWidth(2) # Set the mark line to purple (880088) dash line. Use white (ffffff) for the mark label. mark.setMarkColor(c.dashLineColor(0x880088), 0xffffff) # Put the mark label at the left side of the mark, with a purple (880088) background. mark.setAlignment(ChartDirector::Left) mark.setBackground(0x880088) # Color the region between the above normal line and mark line. Use the semi-transparent blue # (800000ff) if the normal line is higher than the mark line, otherwise use semi-transparent purple # (80880088) c.addInterLineLayer(layer2.getLine(), mark.getLine(), 0x800000ff, 0x80880088) # Layout the legend box, so we can get its height c.layoutLegend() # Adjust the plot area size, such that the bounding box (inclusive of axes) is 10 pixels from the # left edge, just under the legend box, 25 pixels from the right edge, and 10 pixels from the bottom # edge. c.packPlotArea(10, legendBox.getTopY() + legendBox.getHeight(), c.getWidth() - 25, c.getHeight( ) - 10) # After determining the exact plot area position, we may adjust the legend box and the title # positions so that they are centered relative to the plot area (instead of the chart) legendBox.setPos(plotArea.getLeftX() + (plotArea.getWidth() - legendBox.getWidth()) / 2, legendBox.getTopY()) title.setPos(plotArea.getLeftX() + (plotArea.getWidth() - title.getWidth()) / 2, title.getTopY()) # Output the chart c.makeChart("linefill.png") |