宿題があり、ユーザーに4ポイントを要求し、線の傾き/方程式を計算するプログラムを作成する必要があります。ユーザーが計算ボタンを押して、プログラムのウィンドウの左隅に単純な線グラフグラフを表示したいのですが。
どうすればこれを行うことができますか?y切片をプロットして線を表示するだけで、実際にこれに取り組む方法がわかりません。私はプログラムを正常に実行していて、すべてがうまく機能しています。グラフを開始するだけで、開始方法がわかりません。何か案は?
コードをコピーしてJGraspまたはIDEに貼り付けると、意味がわかります。グラフをミックスに追加したいだけです。
グラフを作成するにはどうすればよいですか。また、計算を押したときにグラフが変化するように、グラフをウィンドウに配置するにはどうすればよいですか。
これが私のコードです:
public class lineCalculator extends javax.swing.JFrame {
public lineCalculator() {
initComponents();
}
@SuppressWarnings("unchecked")
private void initComponents() {
jLabel1 = new javax.swing.JLabel();
jLabel2 = new javax.swing.JLabel();
jLabel3 = new javax.swing.JLabel();
jLabel4 = new javax.swing.JLabel();
jLabel5 = new javax.swing.JLabel();
jSeparator1 = new javax.swing.JSeparator();
jTextField1 = new javax.swing.JTextField();
jTextField2 = new javax.swing.JTextField();
jTextField3 = new javax.swing.JTextField();
jTextField4 = new javax.swing.JTextField();
jLabel6 = new javax.swing.JLabel();
jLabel7 = new javax.swing.JLabel();
jButton1 = new javax.swing.JButton();
jTextField5 = new javax.swing.JTextField();
jTextField6 = new javax.swing.JTextField();
jLabel8 = new javax.swing.JLabel();
jTextField7 = new javax.swing.JTextField();
jLabel9 = new javax.swing.JLabel();
jTextField8 = new javax.swing.JTextField();
jLabel10 = new javax.swing.JLabel();
jTextField9 = new javax.swing.JTextField();
setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
jLabel1.setFont(new java.awt.Font("Tahoma", 1, 18));
jLabel1.setText("Line Calculator");
jLabel2.setFont(new java.awt.Font("Tahoma", 1, 12));
jLabel2.setText("X1");
jLabel3.setFont(new java.awt.Font("Tahoma", 1, 12));
jLabel3.setText("X2");
jLabel4.setFont(new java.awt.Font("Tahoma", 1, 12));
jLabel4.setText("Y1");
jLabel5.setFont(new java.awt.Font("Tahoma", 1, 12));
jLabel5.setText("Y2");
jLabel6.setFont(new java.awt.Font("Tahoma", 1, 12));
jLabel6.setText("Slope");
jLabel7.setFont(new java.awt.Font("Tahoma", 1, 12));
jLabel7.setText("Distance between points");
jButton1.setFont(new java.awt.Font("Tahoma", 1, 12));
jButton1.setText("Calculate");
jButton1.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton1ActionPerformed(evt);
}
});
jLabel8.setFont(new java.awt.Font("Tahoma", 1, 12));
jLabel8.setText("Angle(radians)");
jLabel9.setFont(new java.awt.Font("Tahoma", 1, 12));
jLabel9.setText("Angle(degrees)");
jLabel10.setFont(new java.awt.Font("Tahoma", 1, 12));
jLabel10.setText("Equation of the line");
javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
getContentPane().setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGap(211, 211, 211)
.addComponent(jLabel1))
.addGroup(layout.createSequentialGroup()
.addContainerGap()
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGap(39, 39, 39)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addComponent(jLabel6)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
.addComponent(jTextField5, javax.swing.GroupLayout.PREFERRED_SIZE, 77, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGap(30, 30, 30)
.addComponent(jLabel7)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
.addComponent(jTextField6, javax.swing.GroupLayout.PREFERRED_SIZE, 95, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGroup(layout.createSequentialGroup()
.addComponent(jLabel8)
.addGap(18, 18, 18)
.addComponent(jTextField7, javax.swing.GroupLayout.PREFERRED_SIZE, 82, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGap(39, 39, 39)
.addComponent(jLabel9)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
.addComponent(jTextField8, javax.swing.GroupLayout.PREFERRED_SIZE, 92, javax.swing.GroupLayout.PREFERRED_SIZE))))
.addGroup(layout.createSequentialGroup()
.addComponent(jButton1)
.addGap(29, 29, 29)
.addComponent(jLabel10)
.addGap(18, 18, 18)
.addComponent(jTextField9, javax.swing.GroupLayout.PREFERRED_SIZE, 221, javax.swing.GroupLayout.PREFERRED_SIZE))))
.addGroup(layout.createSequentialGroup()
.addGap(141, 141, 141)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jLabel2)
.addComponent(jLabel3))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
.addComponent(jTextField2)
.addComponent(jTextField1, javax.swing.GroupLayout.PREFERRED_SIZE, 78, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGap(40, 40, 40)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING, false)
.addGroup(layout.createSequentialGroup()
.addComponent(jLabel4)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
.addComponent(jTextField4))
.addGroup(javax.swing.GroupLayout.Alignment.LEADING, layout.createSequentialGroup()
.addComponent(jLabel5)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
.addComponent(jTextField3, javax.swing.GroupLayout.PREFERRED_SIZE, 86, javax.swing.GroupLayout.PREFERRED_SIZE))))
.addGroup(layout.createSequentialGroup()
.addContainerGap()
.addComponent(jSeparator1, javax.swing.GroupLayout.PREFERRED_SIZE, 509, javax.swing.GroupLayout.PREFERRED_SIZE)))
.addContainerGap(26, Short.MAX_VALUE))
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addContainerGap()
.addComponent(jLabel1)
.addGap(29, 29, 29)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(jLabel2)
.addComponent(jLabel4)
.addComponent(jTextField1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(jTextField4, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(jLabel3)
.addComponent(jLabel5)
.addComponent(jTextField2, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(jTextField3, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGap(18, 18, 18)
.addComponent(jSeparator1, javax.swing.GroupLayout.PREFERRED_SIZE, 10, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(jLabel6)
.addComponent(jTextField5, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(jLabel7)
.addComponent(jTextField6, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGap(33, 33, 33)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(jTextField7, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(jLabel8)
.addComponent(jLabel9)
.addComponent(jTextField8, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGap(36, 36, 36)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(jButton1, javax.swing.GroupLayout.PREFERRED_SIZE, 31, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(jLabel10)
.addComponent(jTextField9, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
.addContainerGap(49, Short.MAX_VALUE))
);
pack();
}
public boolean isNumeric(String str)
{
try
{
Double.parseDouble(str);
}
catch(Exception e)
{
return (false);
}
return(true);
}
public double Round(double val, int plc)
{
double pwr = Math.pow(10,plc);
val = val * pwr;
double tmp = (int) val;
if( ((int)(val + .5)) == (int) val)
return (tmp/pwr);
else
return((tmp + 1.0)/pwr);
}
private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {
double x1;
double x2;
double y1;
double y2;
double length_of_x;
double length_of_y;
double slope;
double opposite;
double angle_degrees;
double angle_radians;
double y_intercept;
double distance_between_2_points;
x1 = (double) (Double.parseDouble(jTextField1.getText()));
x2 = (double) (Double.parseDouble(jTextField2.getText()));
y1 = (double) (Double.parseDouble(jTextField4.getText()));
y2 = (double) (Double.parseDouble(jTextField3.getText()));
length_of_x = x2 - x1;
length_of_y = y2 - y1;
slope = length_of_y / length_of_x;
slope = (double) Round(slope,2);
opposite = y2 - y1;
distance_between_2_points = Math.sqrt((length_of_x * length_of_x) + (length_of_y * length_of_y));
distance_between_2_points = (double) Round(distance_between_2_points,2);
angle_radians = opposite / distance_between_2_points;
angle_radians = (double) Round(angle_radians,2);
angle_degrees = angle_radians * (180 / 3.14159);
angle_degrees = (double) Round(angle_degrees,2);
y_intercept = (y1)-(angle_radians * x1);
jTextField5.setText(slope + "");
jTextField6.setText(distance_between_2_points + "");
jTextField7.setText(angle_radians + "");
jTextField8.setText(angle_degrees + "");
jTextField9.setText("Y = " + slope + "" + "X + " + y_intercept + "");
}
public static void main(String args[]) {
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(lineCalculator.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (InstantiationException ex) {
java.util.logging.Logger.getLogger(lineCalculator.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (IllegalAccessException ex) {
java.util.logging.Logger.getLogger(lineCalculator.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (javax.swing.UnsupportedLookAndFeelException ex) {
java.util.logging.Logger.getLogger(lineCalculator.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
}
/* Create and display the form */
java.awt.EventQueue.invokeLater(new Runnable() {
public void run() {
new lineCalculator().setVisible(true);
}
});
}
private javax.swing.JButton jButton1;
private javax.swing.JLabel jLabel1;
private javax.swing.JLabel jLabel10;
private javax.swing.JLabel jLabel2;
private javax.swing.JLabel jLabel3;
private javax.swing.JLabel jLabel4;
private javax.swing.JLabel jLabel5;
private javax.swing.JLabel jLabel6;
private javax.swing.JLabel jLabel7;
private javax.swing.JLabel jLabel8;
private javax.swing.JLabel jLabel9;
private javax.swing.JSeparator jSeparator1;
private javax.swing.JTextField jTextField1;
private javax.swing.JTextField jTextField2;
private javax.swing.JTextField jTextField3;
private javax.swing.JTextField jTextField4;
private javax.swing.JTextField jTextField5;
private javax.swing.JTextField jTextField6;
private javax.swing.JTextField jTextField7;
private javax.swing.JTextField jTextField8;
private javax.swing.JTextField jTextField9;
}