Java tutorial
/* * To change this license header, choose License Headers in Project Properties. * To change this template file, choose Tools | Templates * and open the template in the editor. */ package OilDrop; import java.awt.Color; import java.awt.Graphics; import static java.lang.Math.PI; import static java.lang.Math.exp; import static java.lang.Math.pow; import org.jfree.chart.ChartFactory; import org.jfree.chart.ChartPanel; import org.jfree.chart.JFreeChart; import org.jfree.chart.plot.PlotOrientation; import org.jfree.chart.plot.XYPlot; import org.jfree.data.xy.XYSeries; import org.jfree.data.xy.XYSeriesCollection; /** * * @author dajeong */ public class GraphTest extends javax.swing.JFrame { double eta = 1.81 * pow(10, -5); double r = 6 * pow(10, -6); int time; double g = 9.8; double roAir = 1.29; double ro = 875.3; double v; double position; public GraphTest() { initComponents(); } public JFreeChart getResultChart() { XYSeries series1 = new XYSeries("Particle Velocity"); for (double i = 0; i < 10; i++) { caculate(i / 1000.); series1.add(i, position);//pow(v,-10)); } XYSeriesCollection data1 = new XYSeriesCollection(series1); final JFreeChart chart = ChartFactory.createXYLineChart("Time-Voltage Graph", "Time", "Voltage", data1, PlotOrientation.VERTICAL, true, false, false); chart.setBackgroundPaint(null); XYPlot plot = chart.getXYPlot(); // plot.getRangeAxis().setRange(-20, 20); return chart; } public void caculate(double time) { v = (exp(9 * eta * time / 2. / r / r / ro) + 2 * r * r * g * (ro - roAir)) / 9. / eta; //v = 2*g*(ro-roAir)*r*r/(9.*eta);//0.003785 position = 100 - v * time; System.out.println(v); } public class GraphViewPanel extends ChartPanel { public GraphViewPanel(JFreeChart chart) { super(chart); } public void paintComponent(Graphics g2) { super.paintComponent(g2); this.setChart(getResultChart()); } } /** * This method is called from within the constructor to initialize the form. * WARNING: Do NOT modify this code. The content of this method is always * regenerated by the Form Editor. */ @SuppressWarnings("unchecked") // <editor-fold defaultstate="collapsed" desc="Generated Code">//GEN-BEGIN:initComponents private void initComponents() { jPanel1 = new GraphViewPanel(getResultChart()); setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE); javax.swing.GroupLayout jPanel1Layout = new javax.swing.GroupLayout(jPanel1); jPanel1.setLayout(jPanel1Layout); jPanel1Layout.setHorizontalGroup(jPanel1Layout .createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING).addGap(0, 400, Short.MAX_VALUE)); jPanel1Layout.setVerticalGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addGap(0, 300, Short.MAX_VALUE)); javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane()); getContentPane().setLayout(layout); layout.setHorizontalGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addComponent(jPanel1, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)); layout.setVerticalGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING).addComponent( jPanel1, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)); pack(); }// </editor-fold>//GEN-END:initComponents /** * @param args the command line arguments */ public static void main(String args[]) { /* Set the Nimbus look and feel */ //<editor-fold defaultstate="collapsed" desc=" Look and feel setting code (optional) "> /* If Nimbus (introduced in Java SE 6) is not available, stay with the default look and feel. * For details see http://download.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.html */ try { for (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager.getInstalledLookAndFeels()) { if ("Nimbus".equals(info.getName())) { javax.swing.UIManager.setLookAndFeel(info.getClassName()); break; } } } catch (ClassNotFoundException ex) { java.util.logging.Logger.getLogger(GraphTest.class.getName()).log(java.util.logging.Level.SEVERE, null, ex); } catch (InstantiationException ex) { java.util.logging.Logger.getLogger(GraphTest.class.getName()).log(java.util.logging.Level.SEVERE, null, ex); } catch (IllegalAccessException ex) { java.util.logging.Logger.getLogger(GraphTest.class.getName()).log(java.util.logging.Level.SEVERE, null, ex); } catch (javax.swing.UnsupportedLookAndFeelException ex) { java.util.logging.Logger.getLogger(GraphTest.class.getName()).log(java.util.logging.Level.SEVERE, null, ex); } //</editor-fold> /* Create and display the form */ java.awt.EventQueue.invokeLater(new Runnable() { public void run() { new GraphTest().setVisible(true); } }); } // Variables declaration - do not modify//GEN-BEGIN:variables private javax.swing.JPanel jPanel1; // End of variables declaration//GEN-END:variables }