/**
* Compute the amount of rotation to apply to a label in order to keep it oriented toward its
* orientation position.
*
* @param screenPoint Geographic position of the text, projected onto the screen.
* @param orientationScreenPoint Orientation position, projected onto the screen.
* @return The rotation angle to apply when drawing the label.
*/
protected Angle computeRotation(Vec4 screenPoint, Vec4 orientationScreenPoint) {
// Determine delta between the orientation position and the label position
double deltaX = screenPoint.x - orientationScreenPoint.x;
double deltaY = screenPoint.y - orientationScreenPoint.y;
if (deltaX != 0) {
double angle = Math.atan(deltaY / deltaX);
return Angle.fromRadians(angle);
} else {
return Angle.POS90; // Vertical label
}
}
public AppFrame() {
super(true, true, false);
IconLayer layer = new IconLayer();
layer.setPickEnabled(true);
layer.setAllowBatchPicking(false);
layer.setRegionCulling(true);
UserFacingIcon icon =
new UserFacingIcon(
"src/images/32x32-icon-nasa.png",
new Position(Angle.fromRadians(0), Angle.fromRadians(0), 0));
icon.setSize(new Dimension(24, 24));
layer.addIcon(icon);
icon =
new UserFacingIcon(
"src/images/32x32-icon-nasa.png",
new Position(Angle.fromRadians(0.1), Angle.fromRadians(0.0), 0));
icon.setSize(new Dimension(24, 24));
layer.addIcon(icon);
icon =
new UserFacingIcon(
"src/images/32x32-icon-nasa.png",
new Position(Angle.fromRadians(0.0), Angle.fromRadians(0.1), 0));
icon.setSize(new Dimension(24, 24));
layer.addIcon(icon);
icon =
new UserFacingIcon(
"src/images/32x32-icon-nasa.png",
new Position(Angle.fromRadians(0.1), Angle.fromRadians(0.1), 0));
icon.setSize(new Dimension(24, 24));
layer.addIcon(icon);
icon =
new UserFacingIcon(
"src/images/32x32-icon-nasa.png",
new Position(Angle.fromRadians(0), Angle.fromDegrees(180), 0));
icon.setSize(new Dimension(24, 24));
layer.addIcon(icon);
ApplicationTemplate.insertAfterPlacenames(this.getWwd(), layer);
this.getWwd()
.addSelectListener(
new SelectListener() {
@Override
public void selected(SelectEvent event) {
if (event.getEventAction().equals(SelectEvent.ROLLOVER)) {
PickedObjectList pol = event.getObjects();
System.out.println(" Picked Objects Size " + pol.size());
for (PickedObject po : pol) {
System.out.println(
" Class "
+ po.getObject().getClass().getName()
+ " isTerrian="
+ po.isTerrain());
}
}
}
});
this.getWwd().getSceneController().setDeepPickEnabled(true);
}