Graphs.java

/*
 * 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 Graficas;

import java.awt.Graphics;
import javax.swing.JOptionPane;

/**
 *
 * @author acer
 */
public class graficas extends javax.swing.JFrame {
    private int maxX,maxY,mx,my;
    double escX,escY,x,y;

    /**
     * Creates new form graficas
     */
    public graficas() {
        initComponents();
        maxX=this.PanelPrincipal.getWidth();
        maxY=this.PanelPrincipal.getHeight();
        mx=maxX/2;
        my=maxY/2;
        escX=10;
        escY=10;
        x=y=0;
    }
     @Override
    public void paint(Graphics g){
        this.paintComponents(g);
        segmento(0,maxY,0,-maxY);
        segmento(maxX,0,-maxX,0);
        punto(x,y);
    }
    
    public void segmento(double x1,double y1, double x2, double y2){
        this.PanelPrincipal.getGraphics().drawLine((int)(mx+escX*x1), (int)(my-escY*y1), (int)(mx+escX*x2), (int)(my-escY*y2));
    }
    
    public void punto(double x, double y){
        PanelPrincipal.getGraphics().drawOval((int)(mx+escX*x), (int)(my-escY*y), 1, 1);
    }
    
    /**
     * 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() {

        buttonGroup1 = new javax.swing.ButtonGroup();
        buttonGroup2 = new javax.swing.ButtonGroup();
        buttonGroup3 = new javax.swing.ButtonGroup();
        buttonGroup4 = new javax.swing.ButtonGroup();
        buttonGroup5 = new javax.swing.ButtonGroup();
        buttonGroup6 = new javax.swing.ButtonGroup();
        PanelPrincipal = new javax.swing.JPanel();
        jButtonPolinomio = new javax.swing.JButton();
        jButtonRacional = new javax.swing.JButton();
        jButtonExponencial = new javax.swing.JButton();
        jButtonLogaritmo = new javax.swing.JButton();
        jButtonTrigomometrica = new javax.swing.JButton();
        jLabelEscala = new javax.swing.JLabel();
        jLabelA = new javax.swing.JLabel();
        jTextFieldA = new javax.swing.JTextField();
        jLabelB = new javax.swing.JLabel();
        jTextFieldB = new javax.swing.JTextField();
        jSpinnerEsc = new javax.swing.JSpinner();
        jButtonBorrar = new javax.swing.JButton();

        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);

        PanelPrincipal.setBorder(javax.swing.BorderFactory.createTitledBorder("Grafica de la funcion en el intervalo [a,b]"));

        javax.swing.GroupLayout PanelPrincipalLayout = new javax.swing.GroupLayout(PanelPrincipal);
        PanelPrincipal.setLayout(PanelPrincipalLayout);
        PanelPrincipalLayout.setHorizontalGroup(
            PanelPrincipalLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGap(0, 691, Short.MAX_VALUE)
        );
        PanelPrincipalLayout.setVerticalGroup(
            PanelPrincipalLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGap(0, 0, Short.MAX_VALUE)
        );

        jButtonPolinomio.setText("Polinomio");
        jButtonPolinomio.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jButtonPolinomioActionPerformed(evt);
            }
        });

        jButtonRacional.setText("Racional");
        jButtonRacional.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jButtonRacionalActionPerformed(evt);
            }
        });

        jButtonExponencial.setText("Exponencial");
        jButtonExponencial.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jButtonExponencialActionPerformed(evt);
            }
        });

        jButtonLogaritmo.setText("Logaritmo");
        jButtonLogaritmo.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jButtonLogaritmoActionPerformed(evt);
            }
        });

        jButtonTrigomometrica.setText("Trigonométrica");
        jButtonTrigomometrica.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jButtonTrigomometricaActionPerformed(evt);
            }
        });

        jLabelEscala.setText("Ingrese la escala:");

        jLabelA.setText("Ingrese a");

        jTextFieldA.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jTextFieldAActionPerformed(evt);
            }
        });

        jLabelB.setText("Ingrese b");

        jSpinnerEsc.addChangeListener(new javax.swing.event.ChangeListener() {
            public void stateChanged(javax.swing.event.ChangeEvent evt) {
                jSpinnerEscStateChanged(evt);
            }
        });

        jButtonBorrar.setText("Borrar");
        jButtonBorrar.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jButtonBorrarActionPerformed(evt);
            }
        });

        javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
        getContentPane().setLayout(layout);
        layout.setHorizontalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addContainerGap()
                .addComponent(PanelPrincipal, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addGroup(layout.createSequentialGroup()
                        .addGap(18, 18, 18)
                        .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
                            .addComponent(jButtonPolinomio, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                            .addComponent(jTextFieldB, javax.swing.GroupLayout.PREFERRED_SIZE, 104, javax.swing.GroupLayout.PREFERRED_SIZE)
                            .addComponent(jTextFieldA, javax.swing.GroupLayout.PREFERRED_SIZE, 104, javax.swing.GroupLayout.PREFERRED_SIZE)
                            .addComponent(jButtonRacional, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                            .addComponent(jButtonExponencial, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                            .addComponent(jButtonLogaritmo, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                            .addComponent(jButtonTrigomometrica, javax.swing.GroupLayout.DEFAULT_SIZE, 107, Short.MAX_VALUE)))
                    .addGroup(layout.createSequentialGroup()
                        .addGap(49, 49, 49)
                        .addComponent(jLabelA))
                    .addGroup(layout.createSequentialGroup()
                        .addGap(48, 48, 48)
                        .addComponent(jLabelB))
                    .addGroup(layout.createSequentialGroup()
                        .addGap(26, 26, 26)
                        .addComponent(jLabelEscala))
                    .addGroup(layout.createSequentialGroup()
                        .addGap(57, 57, 57)
                        .addComponent(jSpinnerEsc, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
                    .addGroup(layout.createSequentialGroup()
                        .addGap(37, 37, 37)
                        .addComponent(jButtonBorrar)))
                .addContainerGap(36, Short.MAX_VALUE))
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addGap(24, 24, 24)
                .addComponent(jLabelA, javax.swing.GroupLayout.PREFERRED_SIZE, 14, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
                .addComponent(jTextFieldA, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addGap(18, 18, 18)
                .addComponent(jLabelB)
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                .addComponent(jTextFieldB, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addGap(18, 18, 18)
                .addComponent(jLabelEscala)
                .addGap(18, 18, 18)
                .addComponent(jSpinnerEsc, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addGap(27, 27, 27)
                .addComponent(jButtonPolinomio)
                .addGap(18, 18, 18)
                .addComponent(jButtonRacional)
                .addGap(18, 18, 18)
                .addComponent(jButtonExponencial)
                .addGap(18, 18, 18)
                .addComponent(jButtonLogaritmo)
                .addGap(18, 18, 18)
                .addComponent(jButtonTrigomometrica)
                .addGap(27, 27, 27)
                .addComponent(jButtonBorrar)
                .addContainerGap(62, Short.MAX_VALUE))
            .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
                .addContainerGap()
                .addComponent(PanelPrincipal, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                .addGap(20, 20, 20))
        );

        pack();
    }// </editor-fold>//GEN-END:initComponents

    private void jTextFieldAActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jTextFieldAActionPerformed
        // TODO add your handling code here:
        
    }//GEN-LAST:event_jTextFieldAActionPerformed

    private void jButtonRacionalActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButtonRacionalActionPerformed
        // TODO add your handling code here:
        double x1,x2,fx1,fx2,inicio,fin;
        try{
        inicio = Integer.parseInt(jTextFieldA.getText());
        fin = Integer.parseInt(jTextFieldB.getText());
        if(fin<=inicio){
            inicio=fin;
        }
        
        for(int i=0; i<1000; i++){
            x1 = inicio + i*(fin-inicio)/1000;
            fx1=1/x1;
            x2 = inicio + (i+1)*(fin-inicio)/1000;
            fx2=1/x2;
            if(x1==0 || x2==0);
            else segmento(x1,fx1,x2,fx2);  
        }
        }catch(RuntimeException ex){
            JOptionPane.showMessageDialog(this,
                    "Error con el intervalo", 
                    "Error", JOptionPane.ERROR_MESSAGE);
        }
        
    }//GEN-LAST:event_jButtonRacionalActionPerformed

    private void jSpinnerEscStateChanged(javax.swing.event.ChangeEvent evt) {//GEN-FIRST:event_jSpinnerEscStateChanged
        // TODO add your handling code here:
        escX=escY=(int)(this.jSpinnerEsc.getValue());
        repaint();
    }//GEN-LAST:event_jSpinnerEscStateChanged

    private void jButtonPolinomioActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButtonPolinomioActionPerformed
        // TODO add your handling code here:
        double x1,x2,fx1,fx2,inicio,fin;
        
        try{
        inicio = Integer.parseInt(jTextFieldA.getText());
        fin = Integer.parseInt(jTextFieldB.getText());
        if(fin<=inicio){
            inicio=fin;
        }
        
        for(int i=0; i<1000; i++){
            x1 = inicio + i*(fin-inicio)/1000;
            fx1=x1*x1*x1-x1;
            x2 = inicio + (i+1)*(fin-inicio)/1000;
            fx2=x2*x2*x2-x2;
            segmento(x1,fx1,x2,fx2);
        }
        }catch(RuntimeException ex){
            JOptionPane.showMessageDialog(this,
                    "Error con el intervalo", 
                    "Error", JOptionPane.ERROR_MESSAGE);
        }
    }//GEN-LAST:event_jButtonPolinomioActionPerformed

    private void jButtonBorrarActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButtonBorrarActionPerformed
        // TODO add your handling code here:
        repaint();
    }//GEN-LAST:event_jButtonBorrarActionPerformed

    private void jButtonExponencialActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButtonExponencialActionPerformed
        // TODO add your handling code here:
        double x1,x2,fx1,fx2,inicio,fin;
        
        try{
        inicio = Integer.parseInt(jTextFieldA.getText());
        fin = Integer.parseInt(jTextFieldB.getText());
        if(fin<=inicio){
            inicio=fin;
        }
        
        for(int i=0; i<1000; i++){
            x1 = inicio + i*(fin-inicio)/1000;
            fx1=20*Math.exp(-x1*x1);
            x2 = inicio + (i+1)*(fin-inicio)/1000;
            fx2=20*Math.exp(-x2*x2);
            segmento(x1,fx1,x2,fx2);
        }
        }catch(RuntimeException ex){
            JOptionPane.showMessageDialog(this,
                    "Error con el intervalo", 
                    "Error", JOptionPane.ERROR_MESSAGE);
        }
    }//GEN-LAST:event_jButtonExponencialActionPerformed

    private void jButtonLogaritmoActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButtonLogaritmoActionPerformed
        // TODO add your handling code here:
        double x1,x2,fx1,fx2,inicio,fin;
        
        try{
        inicio = Integer.parseInt(jTextFieldA.getText());
        fin = Integer.parseInt(jTextFieldB.getText());
        if(fin<=inicio){
            inicio=fin;
        }
        
        for(int i=0; i<1000; i++){
            x1 = inicio + i*(fin-inicio)/1000;
            fx1=Math.log(x1*x1);
            x2 = inicio + (i+1)*(fin-inicio)/1000;
            fx2=Math.log(x2*x2);
            segmento(x1,fx1,x2,fx2);
        }
        }catch(RuntimeException ex){
            JOptionPane.showMessageDialog(this,
                    "Error con el intervalo", 
                    "Error", JOptionPane.ERROR_MESSAGE);
        }
        
    }//GEN-LAST:event_jButtonLogaritmoActionPerformed

    private void jButtonTrigomometricaActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButtonTrigomometricaActionPerformed
        // TODO add your handling code here:
        double x1,x2,fx1,fx2,inicio,fin;
        try{
        inicio = Integer.parseInt(jTextFieldA.getText());
        fin = Integer.parseInt(jTextFieldB.getText());
        if(fin<=inicio){
            inicio=fin;
        }
        
        for(int i=0; i<1000; i++){
            x1 = inicio + i*(fin-inicio)/1000;
            fx1=10*Math.sin(x1*x1-5);
            x2 = inicio + (i+1)*(fin-inicio)/1000;
            fx2=10*Math.sin(x2*x2-5);
            segmento(x1,fx1,x2,fx2);
            }
        }catch(RuntimeException ex){
            JOptionPane.showMessageDialog(this,
                    "Error con el intervalo", 
                    "Error", JOptionPane.ERROR_MESSAGE);
        }
        
        
    }//GEN-LAST:event_jButtonTrigomometricaActionPerformed

    /**
     * @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(graficas.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (InstantiationException ex) {
            java.util.logging.Logger.getLogger(graficas.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (IllegalAccessException ex) {
            java.util.logging.Logger.getLogger(graficas.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (javax.swing.UnsupportedLookAndFeelException ex) {
            java.util.logging.Logger.getLogger(graficas.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 graficas().setVisible(true);
            }
        });
    }

    // Variables declaration - do not modify//GEN-BEGIN:variables
    private javax.swing.JPanel PanelPrincipal;
    private javax.swing.ButtonGroup buttonGroup1;
    private javax.swing.ButtonGroup buttonGroup2;
    private javax.swing.ButtonGroup buttonGroup3;
    private javax.swing.ButtonGroup buttonGroup4;
    private javax.swing.ButtonGroup buttonGroup5;
    private javax.swing.ButtonGroup buttonGroup6;
    private javax.swing.JButton jButtonBorrar;
    private javax.swing.JButton jButtonExponencial;
    private javax.swing.JButton jButtonLogaritmo;
    private javax.swing.JButton jButtonPolinomio;
    private javax.swing.JButton jButtonRacional;
    private javax.swing.JButton jButtonTrigomometrica;
    private javax.swing.JLabel jLabelA;
    private javax.swing.JLabel jLabelB;
    private javax.swing.JLabel jLabelEscala;
    private javax.swing.JSpinner jSpinnerEsc;
    private javax.swing.JTextField jTextFieldA;
    private javax.swing.JTextField jTextFieldB;
    // End of variables declaration//GEN-END:variables
}