Multi Level Tree Map

[JSP Version] jspdemo/multileveltreemap.jsp
<%@page import="ChartDirector.*, java.util.*" %>
<%
// The first level nodes of the tree map. There are 5 nodes.
String[] animals = {"Fish", "Amphibian", "Reptile", "Bird", "Mammal"};

// In this example, the colors are based on the first level nodes.
int[] colors = {0xff5555, 0xff9933, 0xffff44, 0x66ff66, 0x44ccff};

// Data for the second level nodes in "Fish"
String[] fish_names = {"Shark", "Ray", "Swordfish", "Sawfish", "Eel", "Lionfish", "Seahorse"};
double[] fish_data = {170, 144, 109, 115, 75, 45, 54};

// Data for the second level nodes in "Bird"
String[] bird_names = {"Swan", "Ostrich", "Eagle", "Penguin", "Kiwi", "Flamingo", "Owl", "Peacock"};
double[] bird_data = {89, 64, 94, 106, 68, 81, 40, 73};

// Data for the second level nodes in "Amphibian"
String[] amphibian_names = {"Toad", "Salamander", "Frog", "Caecilian"};
double[] amphibian_data = {67, 47, 58, 36};

// Data for the second level nodes in "Reptile"
String[] reptile_names = {"Turtle", "Crocodile", "Lizard", "Snake"};
double[] reptile_data = {58, 154, 97, 41};

// Data for the second level nodes in "Mammal"
String[] mammal_names = {"Big Cat", "Primate", "Panda", "Elephant", "Hippo", "Rhino", "Giraffe"};
double[] mammal_data = {266, 207, 160, 194, 168, 149, 202};

// Create a Tree Map object of size 600 x 600 pixels
TreeMapChart c = new TreeMapChart(600, 600);

// Add a title to the chart
c.addTitle("Animal Kingdom Census", "Arial Bold Italic", 18);

// Set the plotarea at (30, 30) and of size 540 x 540 pixels
c.setPlotArea(30, 30, 540, 540);

// Obtain the root of the tree map, which is the entire plot area
TreeMapNode root = c.getRootNode();

// Add first level nodes to the root. We do not need to provide data as they will be computed as the
// sum of the second level nodes.
root.setData(null, animals, colors);

// Add second level nodes to each of the first level node
root.getNode(0).setData(fish_data, fish_names);
root.getNode(1).setData(amphibian_data, amphibian_names);
root.getNode(2).setData(reptile_data, reptile_names);
root.getNode(3).setData(bird_data, bird_names);
root.getNode(4).setData(mammal_data, mammal_names);

// Get the prototype (template) for the first level nodes.
TreeMapNode nodeConfig = c.getLevelPrototype(1);

// Set the label format for the nodes to show the label with 8pt Arial Bold font in semi-transparent
// black color (0x77000000). Put the text at the top left corner of the cell.
nodeConfig.setLabelFormat("{label}", "Times New Roman Bold Italic", 18, 0x77000000, Chart.TopLeft);

// Set the border color to white (ffffff)
nodeConfig.setColors(-1, 0xffffff);

// Get the prototype (template) for the second level nodes.
TreeMapNode nodeConfig2 = c.getLevelPrototype(2);

// Set the label format for the nodes to show the label and value with 8pt Arial Bold font. Put the
// text at the center of the cell.
nodeConfig2.setLabelFormat("{label}<*br*>{value}", "Arial Bold", 8, Chart.TextColor, Chart.Center);

// Set the border color to white (ffffff)
nodeConfig2.setColors(-1, 0xffffff);

// 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='<*cdml*>{label}: {value}'"));
%>
<!DOCTYPE html>
<html>
<head>
    <title>Multi Level Tree Map</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;">
        Multi Level Tree Map
    </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>