/** evaluate the extract function */
public static Data extract(visad.Field f, Real r) {
Data d = null;
try {
d = f.extract((int) r.getValue());
} catch (VisADException exc) {
if (FormulaVar.DEBUG) exc.printStackTrace();
} catch (RemoteException exc) {
if (FormulaVar.DEBUG) exc.printStackTrace();
}
return d;
}
/** evaluate the bracket function; e.g., A1[5] or A1[A2] */
public static Data brackets(visad.Field f, Real r) {
Data value = null;
try {
RealType rt = (RealType) r.getType();
value = f.getSample((int) r.getValue());
} catch (VisADException exc) {
if (FormulaVar.DEBUG) exc.printStackTrace();
} catch (RemoteException exc) {
if (FormulaVar.DEBUG) exc.printStackTrace();
}
return value;
}