visad

Interface RealIface

All Superinterfaces:

Data, ScalarIface, Thing

All Known Implementing Classes:

DateTime, Real

public interface RealIface
extends ScalarIface

Interface to scalar data for real numbers represented as double precision floating point values. Double.NaN is used to indicate missing values, because it has the appropriate arithmetic semantics.

Field Summary

Fields inherited from interface visad.Data

ABS, ACOS, ACOS_DEGREES, ADD, ASIN, ASIN_DEGREES, ATAN, ATAN_DEGREES, ATAN2, ATAN2_DEGREES, CEIL, COS, COS_DEGREES, DEGREES_TO_RADIANS, DEPENDENT, DIVIDE, EXP, FLOOR, INDEPENDENT, INV_ATAN2, INV_ATAN2_DEGREES, INV_DIVIDE, INV_POW, INV_REMAINDER, INV_SUBTRACT, LOG, MAX, MIN, MULTIPLY, NEAREST_NEIGHBOR, NEGATE, NO_ERRORS, NOP, POW, RADIANS_TO_DEGREES, REMAINDER, RINT, ROUND, SIN, SIN_DEGREES, SQRT, SUBTRACT, TAN, TAN_DEGREES, WEIGHTED_AVERAGE

Method Summary

Modifier and Type	Method and Description
Data	adjustSamplingError(Data error, int error_mode) Returns a clone, except that the ErrorEstimate of the clone is adjusted for a given error mode and uncertainty.
Real	cloneButUnit(Unit u) Returns a clone of this instance but with a new Unit.
Real	cloneButValue(double value) Returns a clone of this instance with a different numeric value.
int	compareTo(Object object) Compares this Real to another.
ErrorEstimate	getError() Returns the uncertainty in the numeric value of this instance.
Unit	getUnit() Returns the unit of this instance.
double	getValue() Returns the numeric value in the unit of getUnit().
double	getValue(Unit unit_out) Returns the numeric value in a particular unit.
int	hashCode() Returns the hash code of this Real.
String	toString()
String	toValueString() Returns a string that represents just the value portion of this Real -- but with full semantics (e.g.

Methods inherited from interface visad.ScalarIface

equals

Methods inherited from interface visad.Data

abs, abs, acos, acos, acosDegrees, acosDegrees, add, add, asin, asin, asinDegrees, asinDegrees, atan, atan, atan2, atan2, atan2Degrees, atan2Degrees, atanDegrees, atanDegrees, binary, binary, ceil, ceil, changeMathType, computeRanges, computeRanges, computeRanges, cos, cos, cosDegrees, cosDegrees, dataClone, divide, divide, exp, exp, floor, floor, getType, isMissing, local, log, log, longString, longString, max, max, min, min, multiply, multiply, negate, negate, pow, pow, remainder, remainder, rint, rint, round, round, sin, sin, sinDegrees, sinDegrees, sqrt, sqrt, subtract, subtract, tan, tan, tanDegrees, tanDegrees, unary, unary

Methods inherited from interface visad.Thing

addReference, removeReference

Method Detail

getValue

double getValue()

Returns the numeric value in the unit of getUnit().

Returns:

The numeric value in the unit of getUnit().

getValue

double getValue(Unit unit_out)
         throws VisADException

Returns the numeric value in a particular unit.

Parameters:

unit_out - The desired unit for the numeric value. Must be convertible with getUnit().

Returns:

The numeric value in the given unit.

Throws:

VisADException

getUnit

Unit getUnit()

Returns the unit of this instance.

Returns:

The unit of this instance.

getError

ErrorEstimate getError()

Returns the uncertainty in the numeric value of this instance.

Returns:

The uncertainty in the numeric value of this instance.

adjustSamplingError

Data adjustSamplingError(Data error,
                         int error_mode)
                  throws VisADException,
                         RemoteException

Returns a clone, except that the ErrorEstimate of the clone is adjusted for a given error mode and uncertainty.

Specified by:

adjustSamplingError in interface Data

Parameters:

error - The uncertainty by which to adjust the clone.

error_mode - The mode for propagating errors. See Data.

Returns:

A clone of this instance with a modified uncertainty.

Throws:

VisADException - VisAD failure.

RemoteException - Java RMI failure.

cloneButValue

Real cloneButValue(double value)
            throws VisADException

Returns a clone of this instance with a different numeric value. The unit is unchanged.

Parameters:

value - The numeric value for the clone.

Returns:

A clone of this nstance with the given numeric value.

Throws:

VisADException - VisAD failure.

cloneButUnit

Real cloneButUnit(Unit u)
           throws VisADException

Returns a clone of this instance but with a new Unit. The numeric value is unchanged.

Parameters:

u - The unit for the clone.

Returns:

A clone of this instance but with the given unit.

Throws:

VisADException

toString

String toString()

Overrides:

toString in class Object

toValueString

String toValueString()

Returns a string that represents just the value portion of this Real -- but with full semantics (e.g. numeric value and unit).

Returns:

A string representation of just the value portion of this Real.

compareTo

int compareTo(Object object)

Compares this Real to another.

Parameters:

object - The other Real to compare against. It shall be a Real with a compatible (i.e. convertible) unit.

Returns:

A negative integer, zero, or a positive integer depending on whether this Real is considered less than, equal to, or greater than the other Real, respectively. If the values of the Real-s in the default unit are equal, then the ErrorEstimate.compareTo() method is used to break the tie.

hashCode

int hashCode()

Returns the hash code of this Real.

Overrides:

hashCode in class Object

Returns:

The hash code of this Real. If two Real-s are semantically identical, then their hash codes are equal.