Picking Terrain

[jscWaveLink]

I'm using WWJ 1.3 and the ApplicationTemplate.java class. The WorldMapLayer class indicates that the ClickAndGoSelectListener can be used to move the view to a selected location when that location is clicked within the layer's map. I have modifed the ApplicationTemplate.java and ClickAndGoSelectListener classes. ClickAndGoSelectListener will display the lat/lon coordinates of the terrain when a RIGHT_CLICK occurs. However, the listener never gets called on a RIGHT_CLICK. If the user clicks on a tactical symbol, though, the listener gets called and the coordinates are displayed.

In the code below, a right click on the terrain displays nothing, but a right click on a tactical symbol displays:

RIGHT Click
RIGHT Lat 29.348377019510618 Lon -5.6307413529977115

In the AppPanel, I have

this.wwd = this.createWorldWindow(); // returns new WorldWindowGLCanvas();
this.wwd.addSelectListener(new SSFClickAndGoSelectListener(this.getWwd(), WorldMapLayer.class));

In the SSFClickAndGoSelectListener,

    public void selected(SelectEvent event)
    {
        if (event.isRightClick())
        {System.out.println(" RIGHT Click ");
        	PickedObjectList pol = event.getObjects();
        	if (event.hasObjects())
        	{
        	System.out.println(" RIGHT Lat "+pol.getTerrainObject().getPosition().getLatitude().getDegrees()+
        			" Lon "+event.getObjects().getTerrainObject().getPosition().getLongitude().getDegrees());
        	}
        	else
        	{
        		System.out.println(" RIGHT, but no objects");
        	}
        }
   ...

I've also tried checking the eventAction to be SelectEvent.RIGHT_CLICK, with the same results. I read on this forum about other issues with picking terrain in

handling mouse events in WWJ

. But most posts seem to suggest that picking terrain is working. What else needs to be done to pick terrain? It seems like the RIGHT_CLICK is being consumed, but the docs indicate that all SelectListeners will be called and my listener doesn't check for isConsumed().

Finally, I'd like to remove the "fly-to" functionality of the LEFT_CLICK. If I comment out the call to view.goTo() in my ClickAndGoSelectListener, the LEFT_CLICK still pans to the location. Is there another class which the example ApplicationTemplate uses to implement the ClickAndGoSelectListener functions?

Thanks for your time and help.

[pabercrombie]

You need to use a MouseListener to handle terrain selection (which I think you've already figured out, judging from this thread).

The "pan to location on left click" is handled by the default input handler, not the ClickAndGoSelectListener. An easy way to disable this feature is to add mouse listener that consumes clicks on terrain (the mouse listener will process clicks before the WW input handler, and the input handler will ignore any events that have already been consumed.)

wwd.getInputHandler().addMouseListener(new MouseAdapter()
    {
        @Override
        public void mouseClicked(MouseEvent e)
        {
            PickedObjectList objects = wwd.getObjectsAtCurrentPosition();
            boolean isTerrain = objects != null
                && objects.getTopPickedObject() != null
                && objects.getTopPickedObject().isTerrain();
            if (isTerrain)
            {
                e.consume(); // Prevents globe moving in response to click
            }
        }
    });