/**
* Initialize the lat/lon scalar maps
*
* @throws RemoteException On badness
* @throws VisADException On badness
*/
public void initLatLonMap() throws VisADException, RemoteException {
if (latMap != null) {
return;
}
if (getDisplayMaster() == null) {
return;
}
boolean callScale = (latMap == null);
DisplayImpl display = (DisplayImpl) getDisplayMaster().getDisplay();
// find spatial maps for Latitude and Longitude
latMap = null;
lonMap = null;
Vector scalar_map_vector = display.getMapVector();
Enumeration en = scalar_map_vector.elements();
while (en.hasMoreElements()) {
ScalarMap map = (ScalarMap) en.nextElement();
DisplayRealType real = map.getDisplayScalar();
DisplayTupleType tuple = real.getTuple();
if ((tuple != null)
&& (tuple.equals(Display.DisplaySpatialCartesianTuple)
|| ((tuple.getCoordinateSystem() != null)
&& tuple
.getCoordinateSystem()
.getReference()
.equals(Display.DisplaySpatialCartesianTuple)))) { // Spatial
if (RealType.Latitude.equals(map.getScalar())) {
latMap = map;
} else if (RealType.Longitude.equals(map.getScalar())) {
lonMap = map;
}
}
}
if (callScale) {
setScale(baseScale);
}
}
