/** evaluate the domainFactor function */
public static visad.Field factor(FieldImpl f, VRealType rt) {
visad.Field val = null;
try {
val = f.domainFactor(rt.getRealType());
} catch (VisADException exc) {
if (FormulaVar.DEBUG) exc.printStackTrace();
} catch (RemoteException exc) {
if (FormulaVar.DEBUG) exc.printStackTrace();
}
return val;
}
/** evaluate the derive function */
public static Data derive(Function f, VRealType rt) {
Data val = null;
try {
val = f.derivative(rt.getRealType(), Data.NO_ERRORS);
} catch (VisADException exc) {
if (FormulaVar.DEBUG) exc.printStackTrace();
} catch (RemoteException exc) {
if (FormulaVar.DEBUG) exc.printStackTrace();
}
return val;
}