/**
* Draws the spokes for the polar plot.
*
* @param panel
* @param g
*/
protected void drawRAxis(double dr, double rmax, DrawingPanel panel, Graphics g) {
Graphics2D g2 = (Graphics2D) g;
g.setColor(gridcolor.darker());
int x1 = panel.xToPix(0);
int y1 = panel.yToPix(0);
int x2 = panel.xToPix(rmax);
g.drawLine(x1, y1, Math.min(x2, panel.getWidth() - panel.getRightGutter()), y1);
FontMetrics fm = g2.getFontMetrics();
int nLabels = (int) (panel.getXMax() / dr / MAJOR_TIC);
int stride = (nLabels > 3) ? 2 : 1;
double rm = Math.min(rmax, panel.getXMax());
for (double r = (nLabels > 3) ? stride * MAJOR_TIC * dr : MAJOR_TIC * dr;
r <= rm;
r += (stride * MAJOR_TIC * dr)) {
String label = getLabel(r);
int sW = fm.stringWidth(label) + 4;
int sH = fm.getHeight();
g2.setColor(new Color(247, 247, 247));
int x0 = panel.xToPix(r), y0 = panel.yToPix(0);
g2.fill(new Rectangle2D.Double(x0 - sW / 2, y0 + 3, sW, sH));
g2.setColor(Color.black);
g2.draw(new Rectangle2D.Double(x0 - sW / 2, y0 + 3, sW, sH));
g2.setColor(Color.BLACK);
g2.drawString(label, x0 - sW / 2 + 2, y0 + 1 + sH);
}
}
/**
* Draws the axes in a drawing panel.
*
* @param panel
* @param g
*/
public void draw(DrawingPanel panel, Graphics g) {
if (!visible) {
return;
}
if (interiorColor != panel.getBackground()) {
g.setColor(interiorColor);
int gw = panel.getLeftGutter() + panel.getRightGutter();
int gh = panel.getTopGutter() + panel.getLeftGutter();
g.fillRect(
panel.getLeftGutter(),
panel.getTopGutter(),
panel.getWidth() - gw,
panel.getHeight() - gh);
g.setColor(gridColor);
g.drawRect(
panel.getLeftGutter(),
panel.getTopGutter(),
panel.getWidth() - gw,
panel.getHeight() - gh);
}
Iterator<Drawable> it = drawableList.iterator();
while (it.hasNext()) {
Drawable drawable = it.next();
drawable.draw(panel, g);
}
titleLine.setX((panel.getXMax() + panel.getXMin()) / 2);
if (panel.getTopGutter() > 20) {
titleLine.setY(panel.getYMax() + 5 / panel.getYPixPerUnit());
} else {
titleLine.setY(panel.getYMax() - 25 / panel.getYPixPerUnit());
}
titleLine.draw(panel, g);
}
/**
* Draws the axes in the drawing panel.
*
* @param panel
* @param g
*/
public void draw(DrawingPanel panel, Graphics g) {
if (!visible) {
return;
}
if (interiorColor != null) {
g.setColor(interiorColor);
int gw = panel.getLeftGutter() + panel.getRightGutter();
int gh = panel.getTopGutter() + panel.getBottomGutter();
g.fillRect(
panel.getLeftGutter(),
panel.getTopGutter(),
panel.getWidth() - gw,
panel.getHeight() - gh);
g.setColor(Color.lightGray);
g.drawRect(
panel.getLeftGutter(),
panel.getTopGutter(),
panel.getWidth() - gw,
panel.getHeight() - gh);
}
xaxis.draw(panel, g);
yaxis.draw(panel, g);
titleLine.setX((panel.getXMax() + panel.getXMin()) / 2);
if (panel.getTopGutter() > 20) {
titleLine.setY(panel.getYMax() + 5 / panel.getYPixPerUnit());
} else {
titleLine.setY(panel.getYMax() - 25 / panel.getYPixPerUnit());
}
titleLine.draw(panel, g);
}
public void centerAxes(DrawingPanel panel) {
xaxis.setLocation((panel.getYMax() + panel.getYMin()) / 2);
yaxis.setLocation((panel.getXMax() + panel.getXMin()) / 2);
}