private JPanel createDemo() {
upper = new DefaultChartModel();
lower = new DefaultChartModel();
splineChartModel = new DefaultChartModel();
chart = new Chart();
demoPanel = new JPanel();
demoPanel.setPreferredSize(new Dimension(500, 500));
demoPanel.setLayout(new BorderLayout());
assert xPoints.length == lowerPoints.length && lowerPoints.length == upperPoints.length;
for (int i = 0; i < xPoints.length; i++) {
lower.addPoint(xPoints[i], lowerPoints[i]);
upper.addPoint(xPoints[i], upperPoints[i]);
}
Range<?> xRange = lower.getXRange();
Range<Double> yRange = new CombinedNumericRange().add(lower.getYRange()).add(upper.getYRange());
Axis xAxis = new Axis(xRange);
Axis yAxis = new Axis(yRange);
chart.setXAxis(xAxis);
chart.setYAxis(yAxis);
chart.setShadowVisible(false);
PointStyle pointStyle = new PointStyle(Color.green.darker(), PointShape.SQUARE);
ChartStyle chartStyle = new ChartStyle();
chartStyle.setPointStyle(pointStyle);
chartStyle.setLinesVisible(false);
chartStyle.setPointsVisible(true);
chart.addModel(lower, chartStyle);
chart.addModel(upper, chartStyle);
// ChartStyle averageChartStyle = new ChartStyle(Color.blue, false, true);
ChartStyle splineChartStyle = new ChartStyle();
splineChartStyle.setLinesVisible(true);
LineStyle lineStyle = new LineStyle();
lineStyle.setColor(Color.blue);
lineStyle.setWidth(1);
splineChartStyle.setLineStyle(lineStyle);
final AnnotatedChartModel[] baseModels = new AnnotatedChartModel[] {lower, upper};
averageModel = new AverageChartModel(baseModels);
// chart.addModel(averageModel, averageChartStyle);
chart.addModel(splineChartModel, splineChartStyle);
computeSpline(averageModel, splineChartModel);
demoPanel.add(chart, BorderLayout.CENTER);
chart.addMouseListener(
new MouseListener() {
public void mouseClicked(MouseEvent e) {
if (e.getClickCount() == 2 && nearestModel != null && _nearestPoint != null) {
((DefaultChartModel) nearestModel).removePoint(_nearestPoint);
((DefaultChartModel) nearestModel).update();
computeSpline(averageModel, splineChartModel);
}
}
public void mouseEntered(MouseEvent e) {}
public void mouseExited(MouseEvent e) {}
public void mousePressed(MouseEvent e) {
Point p = e.getPoint();
Double minDistance = null;
for (ChartModel model : baseModels) {
PointSelection nearest = chart.nearestPoint(p, model);
Chartable chartable = nearest.getSelected();
double distance = nearest.getDistance();
if (minDistance == null || distance < minDistance) {
_nearestPoint = chartable;
nearestModel = model;
minDistance = distance;
}
}
}
public void mouseReleased(MouseEvent e) {}
});
chart.addMouseMotionListener(
new MouseMotionListener() {
public void mouseDragged(MouseEvent e) {
if (nearestModel != null) {
Point p = e.getPoint();
Point2D realPoint = chart.calculateUserPoint(p);
if (realPoint != null) {
((ChartPoint) _nearestPoint).setY(new RealPosition(realPoint.getY()));
}
// TODO: Should not have to call an update() method!
((DefaultChartModel) nearestModel).update();
computeSpline(averageModel, splineChartModel);
}
}
public void mouseMoved(MouseEvent e) {}
});
return demoPanel;
}
