public void paintComponent(Graphics g) {
super.paintComponent(g);
Graphics2D g2 = (Graphics2D) g;
currentX = leftMargin;
currentY = topMargin;
// Draw the links
for (int i = 0; i < linkLines.length; i++) {
if (weights[i].isActive()) {
g2.setPaint(weights[i].getColor());
g2.draw(linkLines[i]);
}
}
g2.setPaint(Color.black);
// Draw the input neurons
g2.drawString("Inputs", (float) currentX, (float) currentY);
currentY += titleSpace;
for (int i = 0; i < genome.getInputs(); i++) {
g2.drawImage(inputNeuron, (int) currentX, (int) currentY, null);
currentY += space;
}
// Draw the hidden Neurons
currentX += space;
currentY = topMargin;
g2.drawString("Hidden Layers", (float) currentX, (float) currentY);
for (int i = 0; i < genome.getHiddenLayers(); i++) {
currentY = topMargin + titleSpace;
for (int j = 0; j < genome.getNeuronsInHiddenLayer(); j++) {
g2.drawImage(hiddenNeuron, (int) currentX, (int) currentY, null);
currentY += space;
}
currentX += space;
}
// Draw the output neurons
currentY = topMargin;
g2.drawString("Outputs", (float) currentX, (float) currentY);
currentY += titleSpace;
for (int i = 0; i < genome.getOutputs(); i++) {
g2.drawImage(outputNeuron, (int) currentX, (int) currentY, null);
currentY += space;
}
// Draw the links
for (int i = 0; i < linkLines.length; i++) {
if (weights[i].isActive()) {
g2.setPaint(weights[i].getColor());
g2.draw(linkLines[i]);
}
}
}
/**
* Creates a new NetworkPanel
*
* @param _g The genome of the network
* @param _w The weights of the network
*/
public NetworkPanel(Genome _g, Link[] _w) {
setBackground(Color.white);
genome = _g;
weights = _w;
// Tracker for the images
tracker.addImage(inputNeuron, 0);
tracker.addImage(hiddenNeuron, 1);
tracker.addImage(outputNeuron, 2);
try {
tracker.waitForAll();
} catch (InterruptedException e) {
}
// Create the lines for the links between the layers
// The array of lines is actually complete (as for a fully connected network)
// The loop in paintComponent decideds whether to draw the line or not.
linkLines = new Line2D.Double[weights.length];
int counter = 0;
double fromX = leftMargin + inW;
double fromY = topMargin + titleSpace + iconHeight / 2.0;
double toX = leftMargin + space;
double toY = fromY;
// Create the lines for the links between the first hidden layer and the input layer
for (int i = 0;
i < genome.getNeuronsInHiddenLayer();
i++) // Loop through the neurons in 1st hidden layer
{
fromY = topMargin + titleSpace + iconHeight / 2.0;
for (int j = 0; j < genome.getInputs(); j++) // Loop through the neurons in the input layer
{
linkLines[counter] = new Line2D.Double(fromX, fromY, toX, toY);
fromY += space;
counter++;
}
toY += space;
}
// Create the lines for the links between the hidden layers
fromX += space;
fromY = topMargin + titleSpace + iconHeight / 2.0;
toX = fromX + space - hW;
toY = fromY;
for (int i = 0; i < genome.getHiddenLayers() - 1; i++) // Loop across the hidden layers
{
fromY = topMargin + titleSpace + iconHeight / 2.0;
toY = fromY;
for (int j = 0; j < genome.getNeuronsInHiddenLayer(); j++) // Loop down the 'to' hidden layer
{
fromY = topMargin + titleSpace + iconHeight / 2.0;
for (int k = 0;
k < genome.getNeuronsInHiddenLayer();
k++) // Loop down the 'from' hidden layer
{
linkLines[counter] = new Line2D.Double(fromX, fromY, toX, toY);
fromY += space;
counter++;
}
toY += space;
}
fromX += space;
toX = fromX + space - hW;
}
// Create the lines for the links between the output layer and the final hidden layer
fromX = leftMargin + space * genome.getHiddenLayers() + hW;
fromY = topMargin + titleSpace + iconHeight / 2.0;
toX = leftMargin + space * (genome.getHiddenLayers() + 1);
toY = fromY;
for (int i = 0; i < genome.getOutputs(); i++) // Loop through the outputs
{
fromY = topMargin + titleSpace + 14.0;
for (int j = 0;
j < genome.getNeuronsInHiddenLayer();
j++) // Loop through the neurons in the final hidden layer
{
linkLines[counter] = new Line2D.Double(fromX, fromY, toX, toY);
fromY += space;
counter++;
}
toY += space;
}
}