Grafico de barras não mostra as barras

jucelio_rosa · Abril 19, 2018, 4:35pm

BOA TARDE . ALGUÉM SABE ME DIZER O PORQUE AS BARRAS DO GRÁFICO NÃO APARECEM?

CLASSE do Gráfico :

import java.io.File;
import java.io.IOException;
import static java.lang.Double.max;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.swing.DefaultListModel;
import javax.swing.Icon;
import javax.swing.ImageIcon;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import org.jfree.chart.ChartFactory;
import org.jfree.chart.ChartUtilities;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.plot.PlotOrientation;
import org.jfree.data.category.DefaultCategoryDataset;

/**
*

@author efer_
*/
public class exercicio_forca_iso_bilateral extends javax.swing.JFrame {

// Variáveis globais
DefaultListModel lm = new DefaultListModel();
serial s = new serial();
ArrayList valores = new ArrayList();
Double maior_valor;
Double media=0.5;

//Inserindo os valores de força máxima e média no gráfio

ArrayList<Teste_isometria> DadosGrafico= new ArrayList<>();
/* DadosGrafico.add(new Teste_isometria(“Força Máxima”,maior_valor));
DadosGrafico.add(new Teste_isometria(“Força Média”,media));*/

// -------------------------------------------

/**
- Creates new form principal
  */
  public exercicio_forca_iso_bilateral() {
  initComponents();
  }
/**
- 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”)
  //
  private void initComponents() {
  
  jScrollPane1 = new javax.swing.JScrollPane();
  jList1 = new javax.swing.JList<>();
  btnIniciar = new javax.swing.JButton();
  jButton3 = new javax.swing.JButton();
  btnParar = new javax.swing.JButton();
  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();
  jLabel6 = new javax.swing.JLabel();
  jLabel7 = new javax.swing.JLabel();
  jLabel8 = new javax.swing.JLabel();
  jLabel9 = new javax.swing.JLabel();
  jLabel11 = new javax.swing.JLabel();
  jLabel12 = new javax.swing.JLabel();
  
  setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
  setResizable(false);
  
  jScrollPane1.setViewportView(jList1);
  
  btnIniciar.setText(“Iniciar”);
  btnIniciar.addMouseListener(new java.awt.event.MouseAdapter() {
  public void mouseClicked(java.awt.event.MouseEvent evt) {
  btnIniciarMouseClicked(evt);
  }
  });
  
  btnParar.setText(“Parar”);
  btnParar.addMouseListener(new java.awt.event.MouseAdapter() {
  public void mouseClicked(java.awt.event.MouseEvent evt) {
  btnPararMouseClicked(evt);
  }
  });
  
  jLabel1.setFont(new java.awt.Font(“Tahoma”, 1, 14)); // NOI18N
  jLabel1.setText(“Máximo:”);
  
  jLabel2.setText(“0”);
  
  jLabel3.setText(“Mínimo:”);
  
  jLabel4.setText(“0”);
  
  jLabel5.setFont(new java.awt.Font(“Tahoma”, 1, 14)); // NOI18N
  jLabel5.setText(“Média:”);
  
  jLabel6.setText("-");
  
  jLabel7.setFont(new java.awt.Font(“Tahoma”, 1, 14)); // NOI18N
  jLabel7.setText(“Tempo:”);
  
  jLabel8.setText(“00:00”);
  
  jLabel9.setFont(new java.awt.Font(“Tahoma”, 0, 14)); // NOI18N
  jLabel9.setHorizontalAlignment(javax.swing.SwingConstants.CENTER);
  jLabel9.setText(“Dados:”);
  
  jLabel11.setFont(new java.awt.Font(“Tahoma”, 0, 14)); // NOI18N
  jLabel11.setText(“DATA:”);
  
  jLabel12.setFont(new java.awt.Font(“Tahoma”, 1, 14)); // NOI18N
  jLabel12.setText(“Teste de força Isométrica Máxima - Bilateral”);
  
  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()
  .addContainerGap()
  .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
  .addGroup(layout.createSequentialGroup()
  .addComponent(jScrollPane1, javax.swing.GroupLayout.PREFERRED_SIZE, 118, javax.swing.GroupLayout.PREFERRED_SIZE)
  .addGap(30, 30, 30)
  .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
  .addComponent(btnIniciar, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
  .addComponent(btnParar, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
  .addComponent(jLabel1)
  .addComponent(jLabel3)
  .addComponent(jLabel2, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
  .addComponent(jLabel4, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
  .addComponent(jLabel5)
  .addComponent(jLabel6, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
  .addComponent(jLabel7)
  .addComponent(jLabel8, javax.swing.GroupLayout.PREFERRED_SIZE, 67, javax.swing.GroupLayout.PREFERRED_SIZE)))
  .addComponent(jLabel11)
  .addComponent(jLabel9, javax.swing.GroupLayout.PREFERRED_SIZE, 118, javax.swing.GroupLayout.PREFERRED_SIZE))
  .addGap(132, 132, 132)
  .addComponent(jButton3, javax.swing.GroupLayout.PREFERRED_SIZE, 615, javax.swing.GroupLayout.PREFERRED_SIZE))
  .addGroup(layout.createSequentialGroup()
  .addGap(263, 263, 263)
  .addComponent(jLabel12)))
  .addContainerGap(51, Short.MAX_VALUE))
  );
  layout.setVerticalGroup(
  layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
  .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
  .addGap(38, 38, 38)
  .addComponent(jLabel12)
  .addGap(51, 51, 51)
  .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
  .addGroup(layout.createSequentialGroup()
  .addComponent(jLabel11)
  .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
  .addComponent(jLabel9)
  .addGap(13, 13, 13)
  .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
  .addGroup(layout.createSequentialGroup()
  .addComponent(btnIniciar)
  .addGap(8, 8, 8)
  .addComponent(btnParar)
  .addGap(31, 31, 31)
  .addComponent(jLabel7)
  .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
  .addComponent(jLabel8)
  .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
  .addComponent(jLabel1)
  .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
  .addComponent(jLabel2)
  .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
  .addComponent(jLabel3)
  .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
  .addComponent(jLabel4)
  .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
  .addComponent(jLabel5)
  .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
  .addComponent(jLabel6)
  .addGap(0, 0, Short.MAX_VALUE))
  .addComponent(jScrollPane1, javax.swing.GroupLayout.DEFAULT_SIZE, 371, Short.MAX_VALUE)))
  .addComponent(jButton3, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
  .addContainerGap())
  );
  
  pack();
  }//
Thread t = new Thread(new Runnable() {
@Override
public void run() {
char ch = s.lerCOM();
int escolha = JOptionPane.showConfirmDialog(null, “Pronto para começar?”, “Confirmar”, JOptionPane.YES_NO_OPTION);
if (escolha != JOptionPane.NO_OPTION) {
long inicio = System.currentTimeMillis();
```
         while (true) {    // loop infinito !!!!
             
             // Cronometro
             
             long atual = System.currentTimeMillis();
             long tempo = (atual - inicio);
             jLabel8.setText(new SimpleDateFormat("mm:ss").format(new Date(atual - inicio)));
             jLabel8.updateUI();
             
             // ----------
             
             boolean continuar = true;
             String palavra = "";
             while (continuar) {
                 ch = s.lerCOM();
                 System.out.print(ch);
                 if (ch != '\n') {
                     palavra += ch;
                 } else {
                     // Para limpar e só mostrar os valores vamos usar o try ... catch ...
                     try {
                         Double.parseDouble(palavra);   // Tenta converter para double, se não der vai para o catch e ignora o valor
                         lm.addElement(palavra);
                     } catch (Exception e) {}
                     continuar = false;
                 }
                 jList1.setModel(lm);
                 jList1.updateUI();
             }
             // Manter o valor máximo encontrado atualizado
             try {
                 if (Double.parseDouble(palavra) > Double.parseDouble(jLabel2.getText())) {
                     jLabel2.setText(palavra);
                     jLabel2.updateUI();
                     
                    
                 }
             } catch (Exception e) {
             }
             // Manter o valor mínimo encontrado atualizado
             try {
                 if (Double.parseDouble(palavra) < Double.parseDouble(jLabel4.getText())) {
                     jLabel4.setText(palavra);
                     jLabel4.updateUI();
                    
                     
                 }
             } catch (Exception e) {
             }
         }
     }
 }
```
});

private void btnIniciarMouseClicked(java.awt.event.MouseEvent evt) {
btnIniciar.setEnabled(false); // Desabilita o botão
s.selecionaCOM(“COM3”);
lm.removeAllElements();
t.start(); // Inicia a Thread

}

/*public void calculos(){
```
 int j = 0;
 for (j = 0; j < valores.size(); j++) {
     if ((double) valores.get(j) > max) {
         max = (double) valores.get(j);
         maior_valor = max; // colocando a força maior na váriavel maior_valor
     }
     if ((double) valores.get(j) < min) {
         min = (double) valores.get(j);
     }
     soma += (double) valores.get(j);
 }
 jLabel2.setText(Double.toString(max));
 jLabel4.setText(Double.toString(min));
 String num = String.format("%.2f", soma / j);
 jLabel6.setText(num);
 media = Double.parseDouble(num);// colocando a média na variável média
 // ------------------------------------- 
```
} */

DefaultCategoryDataset pegaDados() {
```
 DefaultCategoryDataset dataset = new DefaultCategoryDataset();
 String t = "0";
 
 for (int i = 0; i < lm.getSize(); i++) {
     try {
         
         dataset.addValue(media, "Media","");
         dataset.addValue(maior_valor, "Maior Valor", "");
         
         int temp = Integer.parseInt(t);
         temp++;
         t = Integer.toString(temp);
         valores.add(Double.parseDouble(lm.getElementAt(i).toString()));
     } catch (Exception e) {
     }
 }
 return dataset;
```
}

private void btnPararMouseClicked(java.awt.event.MouseEvent evt) {
t.stop(); // Para a Thread
btnIniciar.setEnabled(true); // Habilita o botão
s.fecharCOM(); // Fechar porta COM
```
 JFreeChart grafico_Barra = ChartFactory.createBarChart("Isometria", "Forças", "Valor Força", pegaDados(), PlotOrientation.VERTICAL, true,true,false);

 File fl = new File("C:\\Users\\user\\Documents\\NetBeansProjects\\novoForcaIsometrica\\teste.jpg");
 try {
     ChartUtilities.saveChartAsJPEG(fl, grafico_Barra, jButton3.getWidth(), jButton3.getHeight());     // fl é o arquivo onde vai ser salvo
 } catch (IOException ex) {
     Logger.getLogger(exercicio_forca_iso_bilateral.class.getName()).log(Level.SEVERE, null, ex);
 }
 // grafico_barras é o gráfico
 // valor, valor é o tamanho
 // Coloca o arquivo como imagem no botão
 Icon i = new ImageIcon("C:\\Users\\user\\Documents\\NetBeansProjects\\novoForcaIsometrica\\teste.jpg");
 jButton3.setIcon(i);
 // -------------------------------------
 // Achar maior e menor valor
 double min = 0, max = 0, soma = 0;
 int j = 0;
 for (j = 0; j < valores.size(); j++) {
     if ((double) valores.get(j) > max) {
         max = (double) valores.get(j);
         maior_valor = max; // colocando a força maior na váriavel maior_valor
     }
     if ((double) valores.get(j) < min) {
         min = (double) valores.get(j);
     }
     soma += (double) valores.get(j);
 }
 jLabel2.setText(Double.toString(max));
 jLabel4.setText(Double.toString(min));
 String num = String.format("%.2f", soma / j);
 jLabel6.setText(num);
 media = Double.parseDouble(num);// colocando a média na variável média
 // -------------------------------------
```
}

/**
- @param args the command line arguments
  /
  public static void main(String args[]) {
  / Set the Nimbus look and feel /
  //
  / 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(exercicio_forca_iso_bilateral.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
    } catch (InstantiationException ex) {
    java.util.logging.Logger.getLogger(exercicio_forca_iso_bilateral.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
    } catch (IllegalAccessException ex) {
    java.util.logging.Logger.getLogger(exercicio_forca_iso_bilateral.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
    } catch (javax.swing.UnsupportedLookAndFeelException ex) {
    java.util.logging.Logger.getLogger(exercicio_forca_iso_bilateral.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 exercicio_forca_iso_bilateral().setVisible(true);
  }
  });
  }
// Variables declaration - do not modify
private javax.swing.JButton btnIniciar;
private javax.swing.JButton btnParar;
private javax.swing.JButton jButton3;
private javax.swing.JLabel jLabel1;
private javax.swing.JLabel jLabel11;
private javax.swing.JLabel jLabel12;
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.JList jList1;
private javax.swing.JScrollPane jScrollPane1;
// End of variables declaration
}

staroski · Abril 20, 2018, 2:11pm

Pelo menos selecione o código de cada classe e clique no botão </>, senão é inviável analisar.

Grafico de barras não mostra as barras

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