Java图表类库JChartLib使用介绍

jopen 10年前

JChartLib是 一款基于Java的智能图表类库,JChartLib不仅有着漂亮的外观,而且支持图表坐标数值的自动调整,这样我们在图表中显示数值就比较简单,不用我 们计算处理。JChartLib同样支持线型图、柱状图和饼状图,而且可以自定义外观样式。另外图表可直接在 Swing 中使用,可保持为 jpg 和 png 格式图片。

JChartLib的预览图

Java图表类库JChartLib使用介绍 Java图表类库JChartLib使用介绍 Java图表类库JChartLib使用介绍 Java图表类库JChartLib使用介绍 Java图表类库JChartLib使用介绍 Java图表类库JChartLib使用介绍

JChartLib的使用方法

JChartLib线形图绘制的Java代码如下:

/*  * JChartLib Demo App for a Linechart  * @author Silvio Schneider  /  import com.bitagentur.chart.JChartLibLinechart;  import com.bitagentur.data.JChartLibDataSet;  import com.bitagentur.data.JChartLibSerie;  import com.bitagentur.renderer.JChartLibPanel;  import java.awt.event.WindowEvent;  import java.awt.event.WindowListener;  import javax.swing.JFrame;  /*  * A simple demonstration application showing how to create a line chart  /  public class JChartLibApp extends JFrame implements WindowListener {  /**   * Creates a new Application Frame   */  public JChartLibApp() {      super("JChartLib Demo Appllication");      final JChartLibDataSet dataset = createDataset();      final JChartLibBaseChart chart = createChart(dataset);      final JChartLibPanel chartPanel = new JChartLibPanel(chart);      chartPanel.setPreferredSize(new java.awt.Dimension(500, 270));      setContentPane(chartPanel);  }    /**   * Creates a sample dataset.   *    * @return a sample dataset.   */  private JChartLibDataSet createDataset() {      //Dataseries can be added with int arrays      int[] values1 = new int[5];      values1[0] = 1;      values1[1] = 3;      values1[2] = 4;      values1[3] = 7;      values1[4] = 2;        //or by generating a Dataserie object      JChartLibSerie values2 = new JChartLibSerie("Banana");      values2.addValue(5);      values2.addValue(4);      values2.addValue(2);      values2.addValue(6);      values2.addValue(2);        final JChartLibDataSet dataset = new JChartLibDataSet();      dataset.addDataSerie("Apple", values1);   //adds the apples      dataset.addDataSerie(values2);            //adds the bananas        return dataset;  }    /**   * Creates a chart   *    * @param dataset the data for the chart.   * @return a new chart   */  private JChartLibBaseChart createChart(final JChartLibDataSet dataset) {        // create the chart with title and axis names      final JChartLibLinechart chart = new JChartLibLinechart(              "Fruits are good", // chart title              "Time goes by", // x axis text              "Number of Fruits", // y axis text              dataset, // data              true // legend on              );        return chart;  }    /**   * Main method - DEMO Application for JChartLib   *   * @param args the command line arguments   */  public static void main(final String[] args) {      System.out.println("JChartLibApp started");      final JChartLibApp app = new JChartLibApp();      app.addWindowListener(app);      app.pack();      app.setVisible(true);  }    @Override  public void windowOpened(WindowEvent e) {      //Nothing to do  }    @Override  public void windowClosing(WindowEvent e) {      //Exit and goodby      if (e.getWindow() == this) {          dispose();          System.out.println("Thanks for using the JChartLibApp");          System.exit(0);      }  }    @Override  public void windowClosed(WindowEvent e) {      //Nothing to do    }    @Override  public void windowIconified(WindowEvent e) {      //Nothing to do  }    @Override  public void windowDeiconified(WindowEvent e) {      //Nothing to do  }    @Override  public void windowActivated(WindowEvent e) {      //Nothing to do  }    @Override  public void windowDeactivated(WindowEvent e) {      //Nothing to do  }  }    JChartLib柱形图绘制的Java代码如下:    /*  * JChartLib Demo App for a Barchart  * @author Silvio Schneider  /  import com.bitagentur.chart.JChartLibBarchart;  import com.bitagentur.data.JChartLibDataSet;  import com.bitagentur.data.JChartLibSerie;  import com.bitagentur.renderer.JChartLibPanel;  import java.awt.event.WindowEvent;  import java.awt.event.WindowListener;  import javax.swing.JFrame;  /*  * A simple demonstration application showing how to create a bar chart  /  public class JChartLibApp extends JFrame implements WindowListener {  /**   * Creates a new Application Frame   */  public JChartLibApp() {      super("JChartLib Demo Appllication");      final JChartLibDataSet dataset = createDataset();      final JChartLibBarchart chart = createChart(dataset);      final JChartLibPanel chartPanel = new JChartLibPanel(chart);      chartPanel.setPreferredSize(new java.awt.Dimension(500, 270));      setContentPane(chartPanel);  }    /**   * Creates a sample dataset.   *    * @return a sample dataset.   */  private JChartLibDataSet createDataset() {      //Dataseries can be added with int arrays      int[] values1 = new int[5];      values1[0] = 1;      values1[1] = 3;      values1[2] = 4;      values1[3] = 7;      values1[4] = 2;        //or by generating a Dataserie object      JChartLibSerie values2 = new JChartLibSerie("Banana");      values2.addValue(5);      values2.addValue(4);      values2.addValue(2);      values2.addValue(6);      values2.addValue(2);        final JChartLibDataSet dataset = new JChartLibDataSet();      dataset.addDataSerie("Apple", values1);   //adds the Apples      dataset.addDataSerie(values2);            //adds the Bananas        return dataset;  }    /**   * Creates a chart   *    * @param dataset the data for the chart.   * @return a new chart   */  private JChartLibBaseChart createChart(final JChartLibDataSet dataset) {        // create the chart with title and axis names      final JChartLibBarchart chart = new JChartLibBarchart(              "Fruits are good", // chart title              "Time goes by", // x axis text              "Number of Fruits", // y axis text              dataset, // data              true // legend on              );        return chart;  }    /**   * Main method - DEMO Application for JChartLib   *   * @param args the command line arguments   */  public static void main(final String[] args) {      System.out.println("JChartLibApp started");      final JChartLibApp app = new JChartLibApp();      app.addWindowListener(app);      app.pack();      app.setVisible(true);  }    @Override  public void windowOpened(WindowEvent e) {      //Nothing to do  }    @Override  public void windowClosing(WindowEvent e) {      //Exit and goodby      if (e.getWindow() == this) {          dispose();          System.out.println("Thanks for using the JChartLibApp");          System.exit(0);      }  }    @Override  public void windowClosed(WindowEvent e) {      //Nothing to do    }    @Override  public void windowIconified(WindowEvent e) {      //Nothing to do  }    @Override  public void windowDeiconified(WindowEvent e) {      //Nothing to do  }    @Override  public void windowActivated(WindowEvent e) {      //Nothing to do  }    @Override  public void windowDeactivated(WindowEvent e) {      //Nothing to do  }  }    JChartLib饼状图绘制的Java代码如下:    /*  * JChartLib Demo App for a piechart  * @author Silvio Schneider  /  import com.bitagentur.chart.JChartLibPiechart;  import com.bitagentur.data.JChartLibDataSet;  import com.bitagentur.data.JChartLibSerie;  import com.bitagentur.renderer.JChartLibPanel;  import java.awt.event.WindowEvent;  import java.awt.event.WindowListener;  import java.util.Random;  import javax.swing.JFrame;  /  * A simple demonstration application showing how to create a pie chart.    /  public class JChartLibApp_piechart extends JFrame implements WindowListener {  /**   * Creates a new Application Frame   */  public JChartLibApp_piechart() {      super("JChartLib Demo Appllication");        final JChartLibDataSet dataset = createDataset();      final JChartLibPiechart chart = createChart(dataset);      final JChartLibPanel chartPanel = new JChartLibPanel(chart);      chartPanel.setPreferredSize(new java.awt.Dimension(500, 270));      setContentPane(chartPanel);  }    /**   * Creates a sample dataset.   *    * @return a sample dataset.   */  private JChartLibDataSet createDataset() {      //or by generating a Dataserie object      JChartLibSerie values1 = new JChartLibSerie("Fruits");      values1.addValue("Apple", 1);      values1.addValue("Banana", 1);      values1.addValue("Orange", 1);      values1.addValue("Tomato", 1);        final JChartLibDataSet dataset = new JChartLibDataSet();      dataset.addDataSerie(values1);          //adds the Apples        return dataset;  }    /**   * Creates a chart   *    * @param dataset the data for the chart.   * @return a new chart   */  private JChartLibPiechart createChart(final JChartLibDataSet dataset) {        // create the chart with title and axis names      final JChartLibPiechart chart = new JChartLibPiechart(              "yammi fruitpie", // chart title              "", // x axis text              "", // y axis text              dataset // data              );        return chart;  }    /**   * Main method - DEMO Application for JChartLib   *   * @param args the command line arguments   */  public static void main(final String[] args) {      System.out.println("JChartLibApp started");      final JChartLibApp_piechart app = new JChartLibApp_piechart();      app.addWindowListener(app);      app.pack();      app.setVisible(true);  }    @Override  public void windowOpened(WindowEvent e) {      //Nothing to do  }    @Override  public void windowClosing(WindowEvent e) {      //Exit and goodby      if (e.getWindow() == this) {          dispose();          System.out.println("Thanks for using the JChartLibApp");          System.exit(0);      }  }    @Override  public void windowClosed(WindowEvent e) {      //Nothing to do  }    @Override  public void windowIconified(WindowEvent e) {      //Nothing to do  }    @Override  public void windowDeiconified(WindowEvent e) {      //Nothing to do  }    @Override  public void windowActivated(WindowEvent e) {      //Nothing to do  }    @Override  public void windowDeactivated(WindowEvent e) {      //Nothing to do  }  }
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