Yes, I was just typing the same thing when Jody's reply came through :)
Alexander, your approach works fine but it's less work to let GeoTools
do it for you like this...
// Listen for mouse clicks in the map pane
mapPane.addMouseListener(new MapMouseAdapter() {
@Override
public void onMouseClicked(MapMouseEvent ev) {
// Get the world position of the mouse
DirectPosition2D pos = ev.getMapPosition();
...
}
});
You can use the MapMouseListener interface directly, rather than the
adapter class, if you wish. Here are some useful javadoc pages...
http://docs.geotools.org/stable/javadocs/org/geotools/swing/event/MapMouseEvent.html
http://docs.geotools.org/stable/javadocs/org/geotools/swing/event/MapMouseListener.html
Michael
On 15 June 2011 13:26, Jody Garnett <[email protected]> wrote:
> I thought there was some kind of MapEvent that did the coordinate
> transformation for you ... MapMouseEvent has some of that figured out
> already.
>
> --
> Jody Garnett
>
> On Wednesday, 15 June 2011 at 8:54 AM, Alexander Lanin wrote:
>
> Hi,
>
> here is what I’m using. I’m new to GeoTools so feel free to correct me
> everyone!
> I have this code in JMapPane:
>
> public void mouseClicked(MouseEvent e) {
> // get the geographic position the mouse is pointing to
> DirectPosition2D geoCoords = getScreenToWorldPos(e.getPoint());
> ...
> }
>
> /**
> * Convert Screen point to Map/World point
> * @param point point on screen
> * @return point in map
> */
> public DirectPosition2D getScreenToWorldPos(Point point) {
> assert ( point != null );
>
> DirectPosition2D geoCoords = new DirectPosition2D(point.getX(),
> point.getY());
>
> AffineTransform t = getScreenToWorldTransform();
> assert ( t != null );
>
> t.transform(geoCoords, geoCoords);
>
> geoCoords.setCoordinateReferenceSystem(getMapContext().getCoordinateReferenceSys
> tem());
>
> assert ( geoCoords != null );
> return geoCoords;
> }
>
> Regards,
> Alex
>
>
>
> Von: khalid Amiral [mailto:[email protected]]
> Gesendet: Mittwoch, 15. Juni 2011 00:25
> An: [email protected]
> Betreff: [Geotools-gt2-users] Get point from click mouse
>
> Heloo,
> please How can i get coordinates point after click mouse, because i want to
> use
> it in WMS/GetFeatureInfo request (request.setQueryPoint(X,Y)).
> if there is an example or tutorial will be better.
>
> Thank you in advance
>
>
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