ChartDirector 6.0 (Ruby Edition)
X Zone Coloring
Source Code Listing
require("chartdirector") class XzonecolorController < ApplicationController def index() @title = "X Zone 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 chart data = [50, 55, 47, 34, 42, 49, 63, 62, 73, 59, 56, 50, 64, 60, 67, 67, 58, 59, 73, 77, 84, 82, 80, 84, 89] # The error data representing the error band around the data points errData = [5, 6, 5.1, 6.5, 6.6, 8, 5.4, 5.1, 4.6, 5.0, 5.2, 6.0, 4.9, 5.6, 4.8, 6.2, 7.4, 7.1, 6.5, 9.6, 12.1, 15.3, 18.5, 20.9, 24.1] # The timestamps for the data labels = [Time.mktime(2001, 1, 1), Time.mktime(2001, 2, 1), Time.mktime(2001, 3, 1), Time.mktime(2001, 4, 1), Time.mktime(2001, 5, 1), Time.mktime(2001, 6, 1), Time.mktime( 2001, 7, 1), Time.mktime(2001, 8, 1), Time.mktime(2001, 9, 1), Time.mktime(2001, 10, 1), Time.mktime(2001, 11, 1), Time.mktime(2001, 12, 1), Time.mktime(2002, 1, 1), Time.mktime(2002, 2, 1), Time.mktime(2002, 3, 1), Time.mktime(2002, 4, 1), Time.mktime( 2002, 5, 1), Time.mktime(2002, 6, 1), Time.mktime(2002, 7, 1), Time.mktime(2002, 8, 1), Time.mktime(2002, 9, 1), Time.mktime(2002, 10, 1), Time.mktime(2002, 11, 1), Time.mktime(2002, 12, 1), Time.mktime(2003, 1, 1)] # Create a XYChart object of size 550 x 220 pixels c = ChartDirector::XYChart.new(550, 220) # Set the plot area at (50, 10) and of size 480 x 180 pixels. Enabled both vertical and # horizontal grids by setting their colors to light grey (cccccc) c.setPlotArea(50, 10, 480, 180).setGridColor(0xcccccc, 0xcccccc) # Add a legend box (50, 10) (top of plot area) using horizontal layout. Use 8pt Arial font. # Disable bounding box (set border to transparent). legendBox = c.addLegend(50, 10, false, "", 8) legendBox.setBackground(ChartDirector::Transparent) # Add keys to the legend box to explain the color zones legendBox.addKey("Historical", 0x9999ff) legendBox.addKey("Forecast", 0xff9966) # Add a title to the y axis. c.yAxis().setTitle("Energy Consumption") # Set the labels on the x axis c.xAxis().setLabels2(labels) # Set multi-style axis label formatting. Use Arial Bold font for yearly labels and display # them as "yyyy". Use default font for monthly labels and display them as "mmm". Replace # some labels with minor ticks to ensure the labels are at least 3 units apart. c.xAxis().setMultiFormat(ChartDirector::StartOfYearFilter(), "<*font=arialbd.ttf*>{value|yyyy}", ChartDirector::StartOfMonthFilter(), "{value|mmm}", 3) # Add a line layer to the chart layer = c.addLineLayer2() # Create the color to draw the data line. The line is blue (0x333399) to the left of x = 18, # and become a red (0xd04040) dash line to the right of x = 18. lineColor = layer.xZoneColor(18, 0x333399, c.dashLineColor(0xd04040, ChartDirector::DashLine )) # Add the data line layer.addDataSet(data, lineColor) # Create the color to draw the err zone. The color is semi-transparent blue (0x809999ff) to # the left of x = 18, and become semi-transparent red (0x80ff9966) to the right of x = 18. errColor = layer.xZoneColor(18, 0x809999ff, 0x80ff9966) # Add the upper border of the err zone layer.addDataSet(ChartDirector::ArrayMath.new(data).add(errData).result(), errColor) # Add the lower border of the err zone layer.addDataSet(ChartDirector::ArrayMath.new(data).sub(errData).result(), errColor) # Set the default line width to 2 pixels layer.setLineWidth(2) # Color the region between the err zone lines c.addInterLineLayer(layer.getLine(1), layer.getLine(2), errColor) # 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 chart data = [50, 55, 47, 34, 42, 49, 63, 62, 73, 59, 56, 50, 64, 60, 67, 67, 58, 59, 73, 77, 84, 82, 80, 84, 89] # The error data representing the error band around the data points errData = [5, 6, 5.1, 6.5, 6.6, 8, 5.4, 5.1, 4.6, 5.0, 5.2, 6.0, 4.9, 5.6, 4.8, 6.2, 7.4, 7.1, 6.5, 9.6, 12.1, 15.3, 18.5, 20.9, 24.1] # The timestamps for the data labels = [Time.mktime(2001, 1, 1), Time.mktime(2001, 2, 1), Time.mktime(2001, 3, 1), Time.mktime( 2001, 4, 1), Time.mktime(2001, 5, 1), Time.mktime(2001, 6, 1), Time.mktime(2001, 7, 1), Time.mktime(2001, 8, 1), Time.mktime(2001, 9, 1), Time.mktime(2001, 10, 1), Time.mktime(2001, 11, 1), Time.mktime(2001, 12, 1), Time.mktime(2002, 1, 1), Time.mktime(2002, 2, 1), Time.mktime( 2002, 3, 1), Time.mktime(2002, 4, 1), Time.mktime(2002, 5, 1), Time.mktime(2002, 6, 1), Time.mktime(2002, 7, 1), Time.mktime(2002, 8, 1), Time.mktime(2002, 9, 1), Time.mktime(2002, 10, 1), Time.mktime(2002, 11, 1), Time.mktime(2002, 12, 1), Time.mktime(2003, 1, 1)] # Create a XYChart object of size 550 x 220 pixels c = ChartDirector::XYChart.new(550, 220) # Set the plot area at (50, 10) and of size 480 x 180 pixels. Enabled both vertical and horizontal # grids by setting their colors to light grey (cccccc) c.setPlotArea(50, 10, 480, 180).setGridColor(0xcccccc, 0xcccccc) # Add a legend box (50, 10) (top of plot area) using horizontal layout. Use 8pt Arial font. Disable # bounding box (set border to transparent). legendBox = c.addLegend(50, 10, false, "", 8) legendBox.setBackground(ChartDirector::Transparent) # Add keys to the legend box to explain the color zones legendBox.addKey("Historical", 0x9999ff) legendBox.addKey("Forecast", 0xff9966) # Add a title to the y axis. c.yAxis().setTitle("Energy Consumption") # Set the labels on the x axis c.xAxis().setLabels2(labels) # Set multi-style axis label formatting. Use Arial Bold font for yearly labels and display them as # "yyyy". Use default font for monthly labels and display them as "mmm". Replace some labels with # minor ticks to ensure the labels are at least 3 units apart. c.xAxis().setMultiFormat(ChartDirector::StartOfYearFilter(), "<*font=arialbd.ttf*>{value|yyyy}", ChartDirector::StartOfMonthFilter(), "{value|mmm}", 3) # Add a line layer to the chart layer = c.addLineLayer2() # Create the color to draw the data line. The line is blue (0x333399) to the left of x = 18, and # become a red (0xd04040) dash line to the right of x = 18. lineColor = layer.xZoneColor(18, 0x333399, c.dashLineColor(0xd04040, ChartDirector::DashLine)) # Add the data line layer.addDataSet(data, lineColor) # Create the color to draw the err zone. The color is semi-transparent blue (0x809999ff) to the left # of x = 18, and become semi-transparent red (0x80ff9966) to the right of x = 18. errColor = layer.xZoneColor(18, 0x809999ff, 0x80ff9966) # Add the upper border of the err zone layer.addDataSet(ChartDirector::ArrayMath.new(data).add(errData).result(), errColor) # Add the lower border of the err zone layer.addDataSet(ChartDirector::ArrayMath.new(data).sub(errData).result(), errColor) # Set the default line width to 2 pixels layer.setLineWidth(2) # Color the region between the err zone lines c.addInterLineLayer(layer.getLine(1), layer.getLine(2), errColor) # Output the chart c.makeChart("xzonecolor.png") |