/** 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;
 }
Esempio n. 2
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 /**
  * 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);
   }
 }