visad.formula
Class FormulaUtil

java.lang.Object
  visad.formula.FormulaUtil

public class FormulaUtil
extends Object

Contains a variety of useful methods related to the visad.formula package.

Constructor Summary

FormulaUtil()

Method Summary

static Data	brackets(Field f, Real r) evaluate the bracket function; e.g., A1[5] or A1[A2]
static FormulaManager	createStandardManager() create a FormulaManager object with many commonly desired features
static Data	derive(Function f, VRealType rt) evaluate the derive function
static Data	dot(TupleIface t, Real r) evaluate the dot operator
static Data	extract(Field f, Real r) evaluate the extract function
static Field	factor(FieldImpl f, VRealType rt) evaluate the domainFactor function
static Data	implicit(Function f, Real r) evaluate implicit function syntax; e.g., A1(5) or A1(A2)
static Object	invokeMethod(Method m, Object[] o) attempt to invoke a Method with the given Object arguments, performing static method auto-detection and automatic array compression
static Data	link(VMethod m, Object[] o) evaluate the link function
static String	preParse(String f, FormulaManager fm) do some pre-computation parsing to a formula
static Method[]	stringsToMethods(String[] strings) convert an array of strings of the form "package.Class.method(Class, Class, ...)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

FormulaUtil

public FormulaUtil()

Method Detail

createStandardManager

public static FormulaManager createStandardManager()

create a FormulaManager object with many commonly desired features

dot

public static Data dot(TupleIface t,
                       Real r)

evaluate the dot operator

derive

public static Data derive(Function f,
                          VRealType rt)

evaluate the derive function

factor

public static Field factor(FieldImpl f,
                           VRealType rt)

evaluate the domainFactor function

extract

public static Data extract(Field f,
                           Real r)

evaluate the extract function

link

public static Data link(VMethod m,
                        Object[] o)
                 throws VisADException

evaluate the link function

Throws:

VisADException

implicit

public static Data implicit(Function f,
                            Real r)

evaluate implicit function syntax; e.g., A1(5) or A1(A2)

brackets

public static Data brackets(Field f,
                            Real r)

evaluate the bracket function; e.g., A1[5] or A1[A2]

preParse

public static String preParse(String f,
                              FormulaManager fm)

do some pre-computation parsing to a formula

stringsToMethods

public static Method[] stringsToMethods(String[] strings)

convert an array of strings of the form "package.Class.method(Class, Class, ...)" to an array of Method objects

invokeMethod

public static Object invokeMethod(Method m,
                                  Object[] o)
                           throws IllegalAccessException,
                                  IllegalArgumentException,
                                  InvocationTargetException

attempt to invoke a Method with the given Object arguments, performing static method auto-detection and automatic array compression

Throws:

IllegalAccessException

IllegalArgumentException

InvocationTargetException