content.getChildren().addAll(guiNodes[r]);
}
// outputs
guiOutputs = new GUIOutput[resources.outputs()];
for (int i = 0; i < guiOutputs.length; i++) {
xPos = ((resources.columns() + 1) * (2 * Constants.NODE_RADIUS + Constants.SPACING));
yPos = (chromosome.getOutput(i).getIndex() * (2 * Constants.NODE_RADIUS + Constants.SPACING)) + Constants.NODE_RADIUS;
// make the line
Line line = new Line(xPos, yPos, xPos, yPos);
line.setMouseTransparent(true);
line.setVisible(false);