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1 import java.awt.*;
2 import java.awt.event.*;
3 import javax.swing.*;
4 import JSci.awt.*;
5 import JSci.swing.*;
6
7
12 public class GraphDemo extends Frame {
13 private DefaultCategoryGraph2DModel categoryModel;
14 private DefaultGraph2DModel valueModel;
15
16 public static void main(String  arg[]) {
17 new GraphDemo();
18 }
19 public GraphDemo() {
20 super("JSci Graph Demo");
21 addWindowListener(new WindowAdapter() {
22 public void windowClosing(WindowEvent evt) {
23 dispose();
24 System.exit(0);
25 }
26 });
27 setSize(700,600);
28 final Font titleFont=new Font("Default",Font.BOLD,14);
29 Label title;
30 categoryModel = createCategoryData();
32 JBarGraph barGraph=new JBarGraph(categoryModel);
34 final Panel barGraphPanel=new Panel(new JGraphLayout());
35 title=new Label("Bar graph",Label.CENTER);
36 title.setFont(titleFont);
37 barGraphPanel.add(title, JGraphLayout.TITLE);
38 barGraphPanel.add(barGraph, JGraphLayout.GRAPH);
39 barGraphPanel.add(new Label("y-axis",Label.RIGHT), JGraphLayout.Y_AXIS);
40 barGraphPanel.add(new Label("Category axis",Label.CENTER), JGraphLayout.X_AXIS);
41 JPieChart pieChart=new JPieChart(categoryModel);
43 final Panel pieChartPanel=new Panel(new GraphLayout());
44 title=new Label("Pie chart",Label.CENTER);
45 title.setFont(titleFont);
46 pieChartPanel.add(title, GraphLayout.TITLE);
47 pieChartPanel.add(pieChart, GraphLayout.GRAPH);
48 valueModel=createValueData();
50 JLineGraph lineGraph=new JLineGraph(valueModel);
52 lineGraph.setGridLines(true);
53 lineGraph.setMarker(new Graph2D.DataMarker.Circle(5));
54 final Panel lineGraphPanel=new Panel(new JGraphLayout());
55 title=new Label("Line graph",Label.CENTER);
56 title.setFont(titleFont);
57 lineGraphPanel.add(title, JGraphLayout.TITLE);
58 lineGraphPanel.add(lineGraph, JGraphLayout.GRAPH);
59 Choice choice=new Choice();
60 choice.add("Temp.");
61 choice.add("Rain fall");
62 choice.addItemListener(new ItemListener() {
63 public void itemStateChanged(ItemEvent evt) {
64 if(evt.getStateChange()==ItemEvent.SELECTED) {
65 if(evt.getItem().toString().equals("Temp.")) {
66 valueModel.setSeriesVisible(0,true);
67 valueModel.setSeriesVisible(1,false);
68 } else if(evt.getItem().toString().equals("Rain fall")) {
69 valueModel.setSeriesVisible(0,false);
70 valueModel.setSeriesVisible(1,true);
71 }
72 }
73 }
74 });
75 lineGraphPanel.add(choice, JGraphLayout.Y_AXIS);
76 lineGraphPanel.add(new Label("x-axis",Label.CENTER), JGraphLayout.X_AXIS);
77
78 final Box tablePanel = new Box(BoxLayout.Y_AXIS);
80 tablePanel.add(new JLabel("Data series 0", JLabel.CENTER));
81 tablePanel.add(new JTable(valueModel.getSeries(0)));
82 tablePanel.add(new JLabel("Data series 1", JLabel.CENTER));
83 tablePanel.add(new JTable(valueModel.getSeries(1)));
84 GridBagLayout gb=new GridBagLayout();
86 GridBagConstraints gbc=new GridBagConstraints();
87 setLayout(gb);
88 gbc.weightx=0.5;gbc.weighty=0.5;
89 gbc.fill=GridBagConstraints.BOTH;
90
91 gbc.gridx=0;gbc.gridy=0;
92 gb.setConstraints(barGraphPanel, gbc);
93 add(barGraphPanel);
94 gbc.gridx=1;gbc.gridy=0;
95 gb.setConstraints(pieChartPanel, gbc);
96 add(pieChartPanel);
97
98 gbc.fill=GridBagConstraints.HORIZONTAL;
99 gbc.gridx=0;gbc.gridy=1;
100 gbc.gridwidth=GridBagConstraints.REMAINDER;
101 Button updateButton=new Button("Update");
102 updateButton.addActionListener(new ActionListener() {
103 public void actionPerformed(ActionEvent evt) {
104 float newData[]={3.4f,5.6f,6.2f,3.9f,1.8f};
105 categoryModel.changeSeries(0,newData);
106 }
107 });
108 gb.setConstraints(updateButton, gbc);
109 add(updateButton);
110
111 gbc.fill=GridBagConstraints.BOTH;
112 gbc.gridx=0;gbc.gridy=2;
113 gbc.gridwidth=1;
114 gb.setConstraints(lineGraphPanel, gbc);
115 add(lineGraphPanel);
116 gbc.gridx=1;gbc.gridy=2;
117 gbc.gridwidth=GridBagConstraints.REMAINDER;
118 gb.setConstraints(tablePanel, gbc);
119 add(tablePanel);
120 setVisible(true);
121 }
122 private static DefaultCategoryGraph2DModel createCategoryData() {
123 String labels[]={"Alpha1","Beta2","Gamma3","Delta4","Epsilon5"};
124 float values1[]={2.4f,7.3f,3.2f,0.5f,2.2f};
125 float values2[]={0.9f,3.4f,2.1f,6.5f,8.2f};
126 DefaultCategoryGraph2DModel model=new DefaultCategoryGraph2DModel();
127 model.setCategories(labels);
128 model.addSeries(values1);
129 model.addSeries(values2);
130 return model;
131 }
132 private static DefaultGraph2DModel createValueData() {
133 float values1[]={3.0f,2.8f,3.5f,3.6f,3.1f,2.6f};
134 float values2[]={7.8f,4.1f,0.9f,0.2f,1.3f,2.5f};
135 DefaultGraph2DModel model=new DefaultGraph2DModel();
136 model.setXAxis(0.0f,5.0f,values1.length);
137 model.addSeries(values1);
138 model.addSeries(values2);
139 model.setSeriesVisible(1,false);
140 return model;
141 }
142 }
143
144
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Java API By Example, From Geeks To Geeks.