/**
* Fits screen to specified geometry bounds.
*
* @param aArea A geometry in geo coordinates space.
* @throws Exception
*/
public void fit(Geometry aArea) throws Exception {
Geometry bounds = aArea.getBoundary();
Envelope envBounds = bounds.getEnvelopeInternal();
Point2D.Double leftUpCorner = new Point2D.Double(envBounds.getMinX(), envBounds.getMinY());
Point2D.Double rightBottomCorner = new Point2D.Double(envBounds.getMaxX(), envBounds.getMaxY());
Point2D.Double cartlu = geo2Cartesian(leftUpCorner);
Point2D.Double cartrb = geo2Cartesian(rightBottomCorner);
double destWidth = Math.abs(cartrb.getX() - cartlu.getX());
double destHeight = Math.abs(cartrb.getY() - cartlu.getY());
Coordinate centre =
new Coordinate((cartrb.getX() + cartlu.getX()) / 2, (cartrb.getY() + cartlu.getY()) / 2);
Dimension size = getSize();
Point2D.Double screenLT = awtScreen2Cartesian(new Point(0, 0));
Point2D.Double screenBR = awtScreen2Cartesian(new Point(size.width, size.height));
double srcWidth = screenBR.x - screenLT.x;
double srcHeight = screenBR.y - screenLT.y;
double sx = srcWidth / destWidth;
double sy = srcHeight / destHeight;
double coef = Math.min(sx, sy);
coef = snapScale(coef);
scaleView(coef, coef, false);
Point2D.Double projectedScreenCenter = screen2Cartesian(new Point(0, 0));
translateView(projectedScreenCenter.x - centre.x, projectedScreenCenter.y - centre.y, true);
repaint();
}
@Override
protected void paintScreenContext(Graphics2D g) {
if (screenContext != null) {
synchronized (screenContext) {
try {
// let's paint selection and phanton layers
screenRenderer.setMapContent(screenContext);
Rectangle clip = g.getClipBounds();
Point2D.Double lu = screen2Cartesian(clip.getLocation());
Point2D.Double br =
screen2Cartesian(new Point(clip.x + clip.width, clip.y + clip.height));
Geometry aoiGeometry = constructRectyPolygonGeometry(lu, br);
Envelope aoiEnvelope =
new ReferencedEnvelope(
aoiGeometry.getEnvelopeInternal(), screenContext.getCoordinateReferenceSystem());
screenRenderer.paint(g, clip, aoiEnvelope, cartesian2Screen);
} catch (NoninvertibleTransformException ex) {
Logger.getLogger(JGeoPane.class.getName()).log(Level.SEVERE, null, ex);
}
}
}
super.paintScreenContext(g);
}
