/** check for flow mappings; does not allow flow mapping through CoordinateSystem */
private String findFlow(
ShadowTupleType shadow,
DisplayImpl display,
DisplayTupleType[] tuples,
int[] flowToComponent) {
ShadowRealType[] components = shadow.getRealComponents();
for (int i = 0; i < components.length; i++) {
int num_flow_per_real = 0;
Enumeration maps = components[i].getSelectedMapVector().elements();
while (maps.hasMoreElements()) {
ScalarMap map = (ScalarMap) maps.nextElement();
DisplayRealType dreal = map.getDisplayScalar();
DisplayTupleType tuple = dreal.getTuple();
if (Display.DisplayFlow1Tuple.equals(tuple) || Display.DisplayFlow2Tuple.equals(tuple)) {
if (tuples[0] != null) {
if (!tuples[0].equals(tuple)) {
return multipleFlowTuples;
}
} else {
tuples[0] = tuple;
}
num_flow_per_real++;
if (num_flow_per_real > 1) {
return multipleFlowMapping;
}
int index = dreal.getTupleIndex();
flowToComponent[index] = i;
directMap[index] = map;
} else if (Display.DisplayFlow1SphericalTuple.equals(tuple)
|| Display.DisplayFlow2SphericalTuple.equals(tuple)) {
if (tuples[0] != null) {
if (!tuples[0].equals(tuple)) {
return multipleFlowTuples;
}
} else {
tuples[0] = tuple;
coord = tuple.getCoordinateSystem();
}
num_flow_per_real++;
if (num_flow_per_real > 1) {
return multipleFlowMapping;
}
int index = dreal.getTupleIndex();
flowToComponent[index] = i;
directMap[index] = map;
}
} // while (maps.hasMoreElements())
}
return null;
}
/**
* 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);
}
}