/** The main loop for the background thread. It is here that most of the work os orchestrated. */
public void run() {
double thisCost = 500.0;
double oldCost = 0.0;
double dcost = 500.0;
int countSame = 0;
map.update(map.getGraphics());
while (countSame < 100) {
generation++;
int ioffset = matingPopulationSize;
int mutated = 0;
// Mate the chromosomes in the favoured population
// with all in the mating population
for (int i = 0; i < favoredPopulationSize; i++) {
Chromosome cmother = chromosomes[i];
// Select partner from the mating population
int father = (int) (0.999999 * Math.random() * (double) matingPopulationSize);
Chromosome cfather = chromosomes[father];
mutated += cmother.mate(cfather, chromosomes[ioffset], chromosomes[ioffset + 1]);
ioffset += 2;
}
// The new generation is in the matingPopulation area
// move them to the correct area for sort.
for (int i = 0; i < matingPopulationSize; i++) {
chromosomes[i] = chromosomes[i + matingPopulationSize];
chromosomes[i].calculateCost(cities);
}
// Now sort the new mating population
Chromosome.sortChromosomes(chromosomes, matingPopulationSize);
double cost = chromosomes[0].getCost();
dcost = Math.abs(cost - thisCost);
thisCost = cost;
double mutationRate = 100.0 * (double) mutated / (double) matingPopulationSize;
NumberFormat nf = NumberFormat.getInstance();
nf.setMinimumFractionDigits(2);
nf.setMinimumFractionDigits(2);
status.setText(
"Generation "
+ generation
+ " Cost "
+ (int) thisCost
+ " Mutated "
+ nf.format(mutationRate)
+ "%");
if ((int) thisCost == (int) oldCost) {
countSame++;
} else {
countSame = 0;
oldCost = thisCost;
}
map.update(map.getGraphics());
}
status.setText("Solution found after " + generation + " generations.");
}
/** A class to render numbers in scientific format. */
class ScientificRenderer extends JLabel implements TableCellRenderer {
NumberFormat format = NumberFormat.getInstance();
public ScientificRenderer(int sigfigs) {
sigfigs = Math.min(sigfigs, 6);
if (format instanceof DecimalFormat) {
String pattern = "0.0"; // $NON-NLS-1$
for (int i = 0; i < sigfigs - 1; i++) {
pattern += "0"; // $NON-NLS-1$
}
pattern += "E0"; // $NON-NLS-1$
((DecimalFormat) format).applyPattern(pattern);
}
}
public Component getTableCellRendererComponent(
JTable table, Object value, boolean isSelected, boolean hasFocus, int row, int column) {
setFont(
getDefaultRenderer(String.class)
.getTableCellRendererComponent(DatasetStatisticsTable.this, "a", false, false, 0, 0)
.getFont()); //$NON-NLS-1$
setText(format.format(value));
setHorizontalAlignment(SwingConstants.TRAILING);
return this;
}
}
public void updateStates() {
NumberFormat nf = NumberFormat.getInstance();
nf.setMaximumFractionDigits(2);
nf.setMinimumFractionDigits(2);
try {
// System.out.println("getting variables.");
status = cryo.cryoGetStatusCORBA();
frame.lblStatus.setText(statusString[status] + " ");
heater = cryo.cryoGetHeaterCORBA();
frame.lblHeater.setText(nf.format(heater) + " watts");
temp = cryo.cryoGetTempCORBA();
frame.lblTemp.setText(nf.format(temp) + " deg");
cli = cryo.cryoGetCliCORBA();
if (Double.isNaN(cli)) {
frame.lblCli.setText(cli + " ");
} else frame.lblCli.setText(nf.format(cli) + " ");
} catch (org.omg.CORBA.COMM_FAILURE cf) {
// stop thread and try to reconnect to the server
frame.lblStatus.setText("FAILURE!! Server connected?");
stop = true;
return;
}
}
/** Update the statistic */
public void setStats(int mi, double me, int ma, double sd) {
NumberFormat nf = NumberFormat.getInstance();
nf.setMaximumFractionDigits(2);
nf.setMinimumFractionDigits(2);
nf.setGroupingUsed(false);
min.setText(Integer.toString(mi));
max.setText(Integer.toString(ma));
String s = nf.format(me);
mean.setText(s);
s = nf.format(sd);
stdDev.setText(s);
}
/**
* This is a JTextField that accepts only numbers.
*
* @author Douglas Brown
* @version 1.0
*/
public class NumberField extends JTextField {
// instance fields
protected NumberFormat format = NumberFormat.getInstance();
protected double prevValue;
protected Double maxValue;
protected Double minValue;
/**
* Constructs a NumberField.
*
* @param columns the number of character columns
*/
public NumberField(int columns) {
super(columns);
}
/**
* Gets the value from the text field.
*
* @return the value
*/
public double getValue() {
if (getText().equals(format.format(prevValue))) return prevValue;
double retValue;
try {
retValue = format.parse(getText()).doubleValue();
if (minValue != null && retValue < minValue.doubleValue()) {
setValue(minValue.doubleValue());
return minValue.doubleValue();
}
if (maxValue != null && retValue > maxValue.doubleValue()) {
setValue(maxValue.doubleValue());
return maxValue.doubleValue();
}
} catch (ParseException e) {
Toolkit.getDefaultToolkit().beep();
setValue(prevValue);
return prevValue;
}
return retValue;
}
/**
* Formats the specified value and enters it in the text field.
*
* @param value the value to be entered
*/
public void setValue(double value) {
if (!isVisible()) return;
if (minValue != null) value = Math.max(value, minValue.doubleValue());
if (maxValue != null) value = Math.min(value, maxValue.doubleValue());
setFormatFor(value);
setText(format.format(value));
prevValue = value;
}
/**
* Sets the resolution for this number field.
*
* @param delta the change in value that must be resolvable
*/
public void setResolution(double delta) {
/** implemented in subclasses */
}
/**
* Sets a minimum value for this field.
*
* @param min the minimum allowed value
*/
public void setMinValue(double min) {
minValue = new Double(min);
}
/**
* Sets a maximum value for this field.
*
* @param max the maximum allowed value
*/
public void setMaxValue(double max) {
maxValue = new Double(max);
}
/**
* Gets the format for this field.
*
* @return the format
*/
public NumberFormat getFormat() {
return format;
}
/**
* Sets the format for a specified value. Subclasses may override this to modify the format before
* displaying the value.
*
* @param value the value to be displayed
*/
public void setFormatFor(double value) {
/** implemented in subclasses */
}
}
public MainCitiesCriteriaPanel() {
super(new BorderLayout());
CountryController countryc = Application.getCountryController();
CitiesController citiesc = Application.getCitiesController();
countryName = Application.getCountryName();
label = new JLabel();
labelPanel = new JPanel();
labelPanel.add(label);
label.setText("Criteria to select main cities for " + countryName.replaceAll("_", " "));
listModel = new DefaultListModel();
Iterator<HashMap<String, String>> iter = citiesc.getToponymTypesIterator();
while (iter.hasNext()) {
String topTypeName = iter.next().get("code");
listModel.addElement(topTypeName);
}
list = new JList(listModel);
list.addListSelectionListener(this);
listPanel = new JScrollPane(list);
NumberFormat nCitiesFormat = NumberFormat.getInstance();
nCitiesFormat.setMaximumFractionDigits(0);
nCitiesFormat.setMaximumIntegerDigits(4);
NumberFormat distFormat = NumberFormat.getInstance();
distFormat.setMaximumFractionDigits(0);
distFormat.setMaximumIntegerDigits(3);
nCitiesField = new JFormattedTextField(nCitiesFormat);
distField = new JFormattedTextField(distFormat);
nCitiesField.setMaximumSize(new Dimension(50, 1));
distField.setMaximumSize(new Dimension(50, 1));
rb1 = new JRadioButton("Filter by type", true);
rb2 = new JRadioButton("Filter by number", false);
rb3 = new JRadioButton("Filter by distance to the borders (km)", false);
ButtonGroup bgroup = new ButtonGroup();
bgroup.add(rb1);
bgroup.add(rb2);
bgroup.add(rb3);
JPanel radioPanel = new JPanel();
radioPanel.setLayout(new BoxLayout(radioPanel, BoxLayout.Y_AXIS));
radioPanel.add(rb1);
radioPanel.add(listPanel);
radioPanel.add(rb2);
radioPanel.add(nCitiesField);
radioPanel.add(rb3);
radioPanel.add(distField);
submit = new JButton();
back = new JButton();
submit.setText("OK");
back.setText("GO BACK");
submit.addActionListener(this);
back.addActionListener(this);
buttonPanel = new JPanel();
buttonPanel.add(back);
buttonPanel.add(submit);
add(labelPanel, BorderLayout.NORTH);
add(radioPanel, BorderLayout.CENTER);
add(buttonPanel, BorderLayout.SOUTH);
}