ecgapplet.java

egc 信号提取applet程序源代码

        aiTable.getModel().setValueAt(new Double(a[1]), 0, 0);
        aiTable.getModel().setValueAt(new Double(a[2]), 1, 0);
        aiTable.getModel().setValueAt(new Double(a[3]), 2, 0);
        aiTable.getModel().setValueAt(new Double(a[4]), 3, 0);
        aiTable.getModel().setValueAt(new Double(a[5]), 4, 0);

        biTable.getModel().setValueAt(new Double(b[1]), 0, 0);
        biTable.getModel().setValueAt(new Double(b[2]), 1, 0);
        biTable.getModel().setValueAt(new Double(b[3]), 2, 0);
        biTable.getModel().setValueAt(new Double(b[4]), 3, 0);
        biTable.getModel().setValueAt(new Double(b[5]), 4, 0);        
        
        /*
         * ECG Animate parameters
         */
        // convert into miliseconds interval
        ecgAnimateInterval = (long)(1000/(sfecg));
    }

    private void resetECG(){
        ecgGenerated = false;
        clearParameters();
        resetPlotArea();
        resetButtons();
        resetStatusBar();
    }

    /*
     * Set the appropiate state of the controls for start the ECG Animation
     */
    private void startECGAnimationSetControls(){
        stopAnimateButton.setEnabled(true);

        //exportButton.setEnabled(true);
        clearButton.setEnabled(false);
        generateButton.setEnabled(false);
        paramButton.setEnabled(false);

        zoomInButton.setEnabled(false);
        zoomOutButton.setEnabled(false);
        
        startAnimateButton.setEnabled(false);
    }

    /*
     * Set the appropiate state of the controls for stop the ECG Animation
     */
    private void stopECGAnimationSetControls(){
        startAnimateButton.setEnabled(true);

        clearButton.setEnabled(true);
        generateButton.setEnabled(true);
        paramButton.setEnabled(true);

        zoomInButton.setEnabled(true);
        zoomOutButton.setEnabled(true);

        stopAnimateButton.setEnabled(false);
    }    

    /*
     * Enable the buttons after generating the ecg Data.
     */
    private void enableButtons(){
        startAnimateButton.setEnabled(true);
        exportButton.setEnabled(true);
        clearButton.setEnabled(true);
        zoomInButton.setEnabled(true);
        zoomOutButton.setEnabled(true);
    }

    private void resetButtons(){
        stopAnimateButton.setEnabled(false);
        startAnimateButton.setEnabled(false);
        exportButton.setEnabled(false);        
        clearButton.setEnabled(false);
        zoomInButton.setEnabled(false);
        zoomOutButton.setEnabled(false);
    }

    private void resetPlotArea(){
        lblMaxAmplitude.setText("1.4");
        lblMinAmplitude.setText("-1.4");
        readyToPlot = false;
        plotScrollBarValue = 0;
    }

    private void resetStatusBar(){
        txtStatus.setText(null);
        txtStatus.append("**********************************************************\n");
        txtStatus.append("Change desired ECG Parameters\n");
        txtStatus.append("and then click 'Generate' button to generate and plot data\n");
        txtStatus.append("**********************************************************");
    }

    private void clearButtonActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_clearButtonActionPerformed
        desktopPane.setCursor(java.awt.Cursor.getPredefinedCursor(java.awt.Cursor.WAIT_CURSOR));

        paramDialog.hide();
        // Delete the DataTable
        clearDataTable();
        resetECG();
        ecgFrame.repaint();

        desktopPane.setCursor(java.awt.Cursor.getPredefinedCursor(java.awt.Cursor.DEFAULT_CURSOR));        
    }//GEN-LAST:event_clearButtonActionPerformed

    private void stopAnimateButtonActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_stopAnimateButtonActionPerformed
        paramDialog.hide();
        /* Stop the Animate Plotting Task */
        ecgAnimateTimer.cancel();
        ecgAnimateFlg =false;
        /* Enable automatic plot */
        readyToPlot = true;
        /* Repaint Plot Area */
        ecgFrame.repaint();

        /* Set the Animate Buttons */
        stopECGAnimationSetControls();
    }//GEN-LAST:event_stopAnimateButtonActionPerformed

    private boolean checkParameters(){
        txtStatus.append("Starting to check ECG parameters entered...\n");

        boolean RetValue = true;
        //ECG Sampling frequency flag
        boolean sfecg_flg = true;
        //Internal Sampling frequency flag
        boolean sf_flg = true;

        /* General Intergace parameters */
        try {
            N = Integer.valueOf(txtN.getText()).intValue();
        } catch(java.lang.NumberFormatException e){
            txtStatus.append("Incorrect 'Approximate number of heart beats' entered, please correct it!\n");
            txtStatus.append("Exception Error : " + e + "\n");
            RetValue = false;
        }

        try {
            sfecg = Integer.valueOf(txtSfecg.getText()).intValue();
        } catch(java.lang.NumberFormatException e){
            txtStatus.append("Incorrect 'ECG Sampling Frequency' entered, please correct it!\n");
            txtStatus.append("Exception Error : " + e + "\n");
            sfecg_flg = false;
            RetValue = false;
        }

        if(sfecg_flg){
            try {
                sf = Integer.valueOf(txtSf.getText()).intValue();
            } catch(java.lang.NumberFormatException e){
                txtStatus.append("Incorrect 'Internal Sampling Frequency' entered, please correct it!\n");
                txtStatus.append("Exception Error : " + e + "\n");
                sf_flg = false;
                RetValue = false;
            }
        }

        // Check the Internal frequency respect to ECG frequency
        if(sfecg_flg && sf_flg){
            if(((int)Math.IEEEremainder(sf, sfecg)) != 0){
                txtStatus.append("Internal sampling frequency must be an integer multiple of the\n"); 
                txtStatus.append("ECG sampling frequency!, that currently is = " + sfecg + " Hertz\n"); 
                RetValue = false;
            }
        }

        try {
            Anoise = Double.valueOf(txtAnoise.getText()).doubleValue();
        } catch(java.lang.NumberFormatException e){
            txtStatus.append("Incorrect 'Amplitude of additive uniform noise' entered, please correct it!\n");
            txtStatus.append("Exception Error : " + e + "\n");
            RetValue = false;
        }

        try {
            hrmean = Double.valueOf(txtHrmean.getText()).doubleValue();
        } catch(java.lang.NumberFormatException e){
            txtStatus.append("Incorrect 'Heart rate mean' entered, please correct it!\n");
            txtStatus.append("Exception Error : " + e + "\n");
            RetValue = false;
        }

        try {
            hrstd = Double.valueOf(txtHrstd.getText()).doubleValue();
        } catch(java.lang.NumberFormatException e){
            txtStatus.append("Incorrect 'Heart rate standard deviation' entered, please correct it!\n");
            txtStatus.append("Exception Error : " + e + "\n");
            RetValue = false;
        }
        
        try {
            seed = Integer.valueOf(txtSeed.getText()).intValue();
        } catch(java.lang.NumberFormatException e){
            txtStatus.append("Incorrect 'seed' entered, please correct it!\n");
            txtStatus.append("Exception Error : " + e + "\n");
            RetValue = false;
        }
       
        try {
            amplitude = Double.valueOf(txtAmplitude.getText()).doubleValue();
        } catch(java.lang.NumberFormatException e){
            txtStatus.append("Incorrect 'Plot Area Amplitude' entered, please correct it!\n");
            txtStatus.append("Exception Error : " + e + "\n");
            RetValue = false;
        }

        /* Spectral Characteristics parameters */

        try {
            flo = Double.valueOf(txtFlo.getText()).doubleValue();
        } catch(java.lang.NumberFormatException e){
            txtStatus.append("Incorrect 'Low frequency' entered, please correct it!\n");
            txtStatus.append("Exception Error : " + e + "\n");
            RetValue = false;
        }

        try {
            fhi = Double.valueOf(txtFhi.getText()).doubleValue();
        } catch(java.lang.NumberFormatException e){
            txtStatus.append("Incorrect 'High frequency' entered, please correct it!\n");
            txtStatus.append("Exception Error : " + e + "\n");
            RetValue = false;
        }

        try {
            flostd = Double.valueOf(txtFlostd.getText()).doubleValue();
        } catch(java.lang.NumberFormatException e){
            txtStatus.append("Incorrect 'Low frequency standard deviation' entered, please correct it!\n");
            txtStatus.append("Exception Error : " + e + "\n");
            RetValue = false;
        }

        try {
            fhistd = Double.valueOf(txtFhistd.getText()).doubleValue();
        } catch(java.lang.NumberFormatException e){
            txtStatus.append("Incorrect 'High frequency standard deviation' entered, please correct it!\n");
            txtStatus.append("Exception Error : " + e + "\n");
            RetValue = false;
        }

        try {
            lfhfratio = Double.valueOf(txtLfhfratio.getText()).doubleValue();
        } catch(java.lang.NumberFormatException e){
            txtStatus.append("Incorrect 'LF/HF ratio' entered, please correct it!\n");
            txtStatus.append("Exception Error : " + e + "\n");
            RetValue = false;
        }

        /*
         * ECG morphology: Order of extrema: [P Q R S T]
         */
        // theta
        try {
            theta[1] = Double.valueOf(tiTable.getValueAt(0,0).toString()).doubleValue();
        } catch(java.lang.NumberFormatException e){
            txtStatus.append("Incorrect 'theta' value entered (position 1), please correct it!\n");
            txtStatus.append("Exception Error : " + e + "\n");
            RetValue = false;
        }
        try {
            theta[2] = Double.valueOf(tiTable.getValueAt(1,0).toString()).doubleValue();
        } catch(java.lang.NumberFormatException e){
            txtStatus.append("Incorrect 'theta' value entered (position 2), please correct it!\n");
            txtStatus.append("Exception Error : " + e + "\n");
            RetValue = false;
        }
        try {
            theta[3] = Double.valueOf(tiTable.getValueAt(2,0).toString()).doubleValue();
        } catch(java.lang.NumberFormatException e){
            txtStatus.append("Incorrect 'theta' value entered (position 3), please correct it!\n");
            txtStatus.append("Exception Error : " + e + "\n");
            RetValue = false;
        }
        try {
            theta[4] = Double.valueOf(tiTable.getValueAt(3,0).toString()).doubleValue();
        } catch(java.lang.NumberFormatException e){
            txtStatus.append("Incorrect 'theta' value entered (position 4), please correct it!\n");
            txtStatus.append("Exception Error : " + e + "\n");
            RetValue = false;
        }
        try {
            theta[5] = Double.valueOf(tiTable.getValueAt(4,0).toString()).doubleValue();
        } catch(java.lang.NumberFormatException e){
            txtStatus.append("Incorrect 'theta' value entered (position 5), please correct it!\n");
            txtStatus.append("Exception Error : " + e + "\n");
            RetValue = false;
        }

        // a
        try {
            a[1] = Double.valueOf(aiTable.getValueAt(0,0).toString()).doubleValue();
        } catch(java.lang.NumberFormatException e){
            txtStatus.append("Incorrect 'a' value entered (position 1), please correct it!\n");