ChartDirector 7.0 (Java Edition)
Multiple Axes
Source Code Listing
<%@page import="ChartDirector.*, java.util.*" %>
<%
// Data for the chart
double[] data0 = {1700, 3900, 2900, 3800, 4100, 4600, 2900, 4100, 4400, 5700, 5900, 5200, 3700,
3400, 5100, 5600, 5600, 6000, 7000, 7600, 6300, 6700, 7500, 6400, 8800};
double[] data1 = {500, 550, 670, 990, 820, 730, 800, 720, 730, 790, 860, 800, 840, 680, 740, 890,
680, 790, 730, 770, 840, 820, 800, 840, 670};
double[] data2 = {46, 68, 35, 33, 38, 20, 12, 18, 15, 23, 30, 24, 28, 15, 21, 26, 46, 42, 38, 25,
23, 32, 24, 20, 25};
double[] data3 = {0.84, 0.82, 0.82, 0.38, 0.25, 0.52, 0.54, 0.52, 0.38, 0.51, 0.46, 0.29, 0.5, 0.55,
0.47, 0.34, 0.52, 0.33, 0.21, 0.3, 0.25, 0.15, 0.18, 0.22, 0.14};
// Labels for the chart
String[] labels = {"0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "10", "11", "12", "13", "14",
"15", "16", "17", "18", "19", "20", "21", "22", "23", "24"};
// Create a XYChart object of size 600 x 360 pixels. Use a vertical gradient color from sky blue
// (aaccff) to white (ffffff) as background. Set border to grey (888888). Use rounded corners.
// Enable soft drop shadow.
XYChart c = new XYChart(600, 360);
c.setBackground(c.linearGradientColor(0, 0, 0, c.getHeight(), 0xaaccff, 0xffffff), 0x888888);
c.setRoundedFrame();
c.setDropShadow();
// Add a title box to the chart using 15pt Arial Bold Italic font. Set top margin to 16 pixels.
TextBox title = c.addTitle("Multiple Axes Demonstration", "Arial Bold Italic", 15);
title.setMargin2(0, 0, 16, 0);
// Set the plotarea at (100, 80) and of size 400 x 230 pixels, with white (ffffff) background. Use
// grey #(aaaaa) dotted lines for both horizontal and vertical grid lines.
c.setPlotArea(100, 80, 400, 230, 0xffffff, -1, -1, c.dashLineColor(0xaaaaaa, Chart.DotLine), -1);
// Add a legend box with the bottom center anchored at (300, 80) (top center of the plot area). Use
// horizontal layout, and 8 points Arial Bold font. Set background and border to transparent.
LegendBox legendBox = c.addLegend(300, 80, false, "Arial Bold", 8);
legendBox.setAlignment(Chart.BottomCenter);
legendBox.setBackground(Chart.Transparent, Chart.Transparent);
// Set the labels on the x axis.
c.xAxis().setLabels(labels);
// Display 1 out of 3 labels on the x-axis.
c.xAxis().setLabelStep(3);
// Add a title to the x-axis
c.xAxis().setTitle("Hour of Day");
// Add a title on top of the primary (left) y axis.
c.yAxis().setTitle("Power\n(Watt)").setAlignment(Chart.TopLeft2);
// Set the axis, label and title colors for the primary y axis to red (c00000) to match the first
// data set
c.yAxis().setColors(0xcc0000, 0xcc0000, 0xcc0000);
// Add a title on top of the secondary (right) y axis.
c.yAxis2().setTitle("Load\n(Mbps)").setAlignment(Chart.TopRight2);
// Set the axis, label and title colors for the secondary y axis to green (00800000) to match the
// second data set
c.yAxis2().setColors(0x008000, 0x008000, 0x008000);
// Add the third y-axis at 50 pixels to the left of the plot area
Axis leftAxis = c.addAxis(Chart.Left, 50);
// Add a title on top of the third y axis.
leftAxis.setTitle("Temp\n(C)").setAlignment(Chart.TopLeft2);
// Set the axis, label and title colors for the third y axis to blue (0000cc) to match the third
// data set
leftAxis.setColors(0x0000cc, 0x0000cc, 0x0000cc);
// Add the fouth y-axis at 50 pixels to the right of the plot area
Axis rightAxis = c.addAxis(Chart.Right, 50);
// Add a title on top of the fourth y axis.
rightAxis.setTitle("Error\n(%)").setAlignment(Chart.TopRight2);
// Set the axis, label and title colors for the fourth y axis to purple (880088) to match the fourth
// data set
rightAxis.setColors(0x880088, 0x880088, 0x880088);
// Add a line layer to for the first data set using red (c00000) color, with a line width of 2
// pixels
LineLayer layer0 = c.addLineLayer(data0, 0xcc0000, "Power");
layer0.setLineWidth(2);
// Add a line layer to for the second data set using green (00c0000) color, with a line width of 2
// pixels. Bind the layer to the secondary y-axis.
LineLayer layer1 = c.addLineLayer(data1, 0x008000, "Load");
layer1.setLineWidth(2);
layer1.setUseYAxis2();
// Add a line layer to for the third data set using blue (0000cc) color, with a line width of 2
// pixels. Bind the layer to the third y-axis.
LineLayer layer2 = c.addLineLayer(data2, 0x0000cc, "Temperature");
layer2.setLineWidth(2);
layer2.setUseYAxis(leftAxis);
// Add a line layer to for the fourth data set using purple (880088) color, with a line width of 2
// pixels. Bind the layer to the fourth y-axis.
LineLayer layer3 = c.addLineLayer(data3, 0x880088, "Error Rate");
layer3.setLineWidth(2);
layer3.setUseYAxis(rightAxis);
// Output the chart
WebChartViewer viewer = new WebChartViewer(request, "chart1");
viewer.setChart(c, Chart.SVG);
// Include tool tip for the chart
viewer.setImageMap(c.getHTMLImageMap("", "", "title='{dataSetName} at hour {xLabel} = {value}'"));
%>
<!DOCTYPE html>
<html>
<head>
<title>Multiple Axes</title>
<!-- Include ChartDirector Javascript Library to support chart interactions -->
<script type="text/javascript" src="cdjcv.js"></script>
</head>
<body style="margin:5px 0px 0px 5px">
<div style="font:bold 18pt verdana;">
Multiple Axes
</div>
<hr style="border:solid 1px #000080; background:#000080" />
<div style="font:10pt verdana; margin-bottom:1.5em">
<a href="viewsource.jsp?file=<%=request.getServletPath()%>">View Source Code</a>
</div>
<!-- ****** Here is the chart image ****** -->
<%= viewer.renderHTML(response) %>
</body>
</html>