GWT Highcharts - Tree Map Chart

Following is an example of a Tree Map Chart.

We have already seen the configuration used to draw a chart in Highcharts Configuration Syntax chapter.

An example of a Tree Map Chart is given below.

Configurations

Let us now see the additional configurations/steps taken.

series

Configure the chart type to be 'treemap' based. series.type decides the series type for the chart. Here, the default value is "line".

series.setType(Type.TREEMAP);

Example

HelloWorld.java

package com.tutorialspoint.client;

import org.moxieapps.gwt.highcharts.client.Chart;
import org.moxieapps.gwt.highcharts.client.Point;
import org.moxieapps.gwt.highcharts.client.Series;

import com.google.gwt.core.client.EntryPoint;
import com.google.gwt.user.client.ui.RootPanel;

public class HelloWorld implements EntryPoint {
   public void onModuleLoad() {
      final Chart chart = new Chart()
         .setChartTitleText("Fruit Consumption");  

      //Defining points to act as parents  
      final Point  appleParent = new Point("Apples")  
         .setColor("#EC2500");  
      final Point bananaParent = new Point("Bananas")  
         .setColor("#ECE100");  
      final Point orangeParent = new Point("Oranges")  
         .setColor("#EC9800");  

      chart.addSeries(chart.createSeries()  
         .setType(Series.Type.TREEMAP)
         .setPoints(new Point[]{  
            appleParent,  
            bananaParent,  
            orangeParent,  
            new Point("Anne", 5)  
               .setParent(appleParent),  
            new Point("Rick", 3)  
               .setParent(appleParent),  
            new Point("Peter", 4)  
               .setParent(appleParent),  
            new Point("Anne", 4)  
               .setParent(bananaParent),  
            new Point("Rick", 10)  
               .setParent(bananaParent),  
            new Point("Peter", 1)  
               .setParent(bananaParent),  
            new Point("Anne", 1)  
               .setParent(orangeParent),  
            new Point("Rick", 3)  
               .setParent(orangeParent),  
            new Point("Peter", 3)  
               .setParent(orangeParent),  
            new Point("Susanne", 2)  
               .setParent("Kiwi")  
               .setColor("#9EDE00")  
         })  
      );  
      RootPanel.get().add(chart);
   }
}

Result

Verify the result.