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Java > Open Source Codes > org > jfree > experimental > chart > demo > XYBlockChartDemo3


1 /* ----------------------
2  * XYBlockChartDemo3.java
3  * ----------------------
4  * (C) Copyright 2006, by Object Refinery Limited.
5  *
6  */
7
8 package org.jfree.experimental.chart.demo;
9
10 import java.awt.Color JavaDoc;
11
12 import javax.swing.JPanel JavaDoc;
13
14 import org.jfree.chart.ChartPanel;
15 import org.jfree.chart.JFreeChart;
16 import org.jfree.chart.axis.NumberAxis;
17 import org.jfree.chart.plot.XYPlot;
18 import org.jfree.data.xy.DefaultXYZDataset;
19 import org.jfree.data.xy.XYZDataset;
20 import org.jfree.experimental.chart.renderer.LookupPaintScale;
21 import org.jfree.experimental.chart.renderer.xy.XYBlockRenderer;
22 import org.jfree.ui.ApplicationFrame;
23 import org.jfree.ui.RefineryUtilities;
24
25 /**
26  * A simple demonstration application showing...
27  */
28 public class XYBlockChartDemo3 extends ApplicationFrame {
29
30     /**
31      * Constructs the demo application.
32      *
33      * @param title the frame title.
34      */
35     public XYBlockChartDemo3(String JavaDoc title) {
36         super(title);
37         JPanel JavaDoc chartPanel = createDemoPanel();
38         chartPanel.setPreferredSize(new java.awt.Dimension JavaDoc(500, 270));
39         setContentPane(chartPanel);
40     }
41     
42     private static JFreeChart createChart(XYZDataset dataset) {
43         NumberAxis xAxis = new NumberAxis("X");
44         xAxis.setLowerMargin(0.0);
45         xAxis.setUpperMargin(0.0);
46         NumberAxis yAxis = new NumberAxis("Y");
47         yAxis.setAutoRangeIncludesZero(false);
48         yAxis.setInverted(true);
49         yAxis.setLowerMargin(0.0);
50         yAxis.setUpperMargin(0.0);
51         yAxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits());
52         XYBlockRenderer renderer = new XYBlockRenderer();
53         LookupPaintScale paintScale = new LookupPaintScale();
54         paintScale.add(new Double JavaDoc(1.0), Color.green);
55         paintScale.add(new Double JavaDoc(2.0), Color.orange);
56         paintScale.add(new Double JavaDoc(2.99), Color.red);
57         renderer.setPaintScale(paintScale);
58         XYPlot plot = new XYPlot(dataset, xAxis, yAxis, renderer);
59         plot.setBackgroundPaint(Color.lightGray);
60         plot.setDomainGridlinePaint(Color.white);
61         plot.setRangeGridlinePaint(Color.white);
62         plot.setForegroundAlpha(0.66f);
63         JFreeChart chart = new JFreeChart("XYBlockChartDemo3", plot);
64         chart.removeLegend();
65         chart.setBackgroundPaint(Color.white);
66         return chart;
67     }
68     
69     /**
70      * Utility method called by createDataset().
71      *
72      * @param data the data array.
73      * @param c the column.
74      * @param r the row.
75      * @param value the value.
76      */
77     private static void setValue(double[][] data,
78                                  int c, int r, double value) {
79         
80         data[0][(r - 8) * 60 + c] = c;
81         data[1][(r - 8) * 60 + c] = r;
82         data[2][(r - 8) * 60 + c] = value;
83         
84     }
85     
86     /**
87      * Creates a sample dataset.
88      */
89     private static XYZDataset createDataset() {
90         
91         double[] xvalues = new double[14 * 60];
92         double[] yvalues = new double[14 * 60];
93         double[] zvalues = new double[14 * 60];
94         double[][] data = new double[][] {xvalues, yvalues, zvalues};
95         
96         // set the default z-value to zero throughout the data array.
97 for (int c = 0; c < 60; c++) {
98             for (int r = 8; r < 22; r++) {
99                 setValue(data, c, r, 0.0);
100             }
101         }
102         
103         for (int r = 8; r < 12; r++) {
104             for (int c = 13; c < 48; c++) {
105                 setValue(data, c, r, 1.0);
106             }
107         }
108         for (int r = 12; r < 20; r++) {
109             for (int c = 23; c < 43; c++) {
110                 setValue(data, c, r, 1.0);
111             }
112         }
113         setValue(data, 2, 20, 2);
114         setValue(data, 5, 20, 3);
115         setValue(data, 6, 20, 3);
116         setValue(data, 7, 20, 3);
117         setValue(data, 8, 20, 3);
118         setValue(data, 9, 20, 3);
119         setValue(data, 11, 20, 3);
120         setValue(data, 17, 20, 2);
121         setValue(data, 18, 20, 2);
122         setValue(data, 19, 20, 2);
123         setValue(data, 20, 20, 2);
124         setValue(data, 22, 20, 2);
125         setValue(data, 25, 20, 2);
126         setValue(data, 28, 20, 2);
127         setValue(data, 35, 20, 2);
128         for (int c = 40; c < 60; c++) {
129             setValue(data, c, 20, 3.0);
130         }
131
132         for (int c = 23; c < 43; c++) {
133             setValue(data, c, 21, 1.0);
134         }
135         DefaultXYZDataset dataset = new DefaultXYZDataset();
136         dataset.addSeries("Series 1", data);
137         return dataset;
138     }
139     
140     /**
141      * Creates a panel for the demo.
142      *
143      * @return A panel.
144      */
145     public static JPanel JavaDoc createDemoPanel() {
146         return new ChartPanel(createChart(createDataset()));
147     }
148     
149     /**
150      * Starting point for the demonstration application.
151      *
152      * @param args ignored.
153      */
154     public static void main(String JavaDoc[] args) {
155         XYBlockChartDemo3 demo = new XYBlockChartDemo3("Block Chart Demo 3");
156         demo.pack();
157         RefineryUtilities.centerFrameOnScreen(demo);
158         demo.setVisible(true);
159     }
160
161 }
162
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