ucar.visad.quantities

Class AirPressure

java.lang.Object

ucar.visad.quantities.Quantity

ucar.visad.quantities.ScalarQuantity

ucar.visad.quantities.Pressure

ucar.visad.quantities.AirPressure

Direct Known Subclasses:

SaturationPointPressure

public class AirPressure
extends Pressure

Provides support for the quantity of air pressure.

Version:

$Id: AirPressure.java,v 1.16 2006/10/12 19:22:19 dmurray Exp $

Author:

Steven R. Emmerson

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	AirPressure.AirPressureCoordinateSystem Provides support for a Pressure <-> Altitude coordinate system transformation.
static class	AirPressure.StandardAtmosphereCoordinateSystem The class for the standard atmosphere converion from altitude to pressure

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	AirPressure(java.lang.String name) Constructs from a name.

Method Summary

Modifier and Type	Method and Description
static visad.Data	fromAltitude(visad.Data altitude) Converts altitude to pressure.
static visad.RealTupleType	getRealTupleType() Obtains the RealTupleType associated with this class.
static visad.RealType	getRealType() Obtains the RealType associated with this class.
static AirPressure.AirPressureCoordinateSystem	getStandardAtmosphereCS() Returns a coordinate system transformation for the Standard Atmosphere.
static visad.Data	toAltitude(visad.Data pressure) Converts pressure to altitude.

Methods inherited from class ucar.visad.quantities.ScalarQuantity

getRealType, getRealType, realType

Methods inherited from class ucar.visad.quantities.Quantity

realTupleType, setRealTupleType

Methods inherited from class java.lang.Object

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

Constructor Detail

AirPressure

protected AirPressure(java.lang.String name)
               throws visad.VisADException

Constructs from a name. The resulting, associated RealTupleType has a CoordinateSystem that is based on the Standard Atmosphere with a reference RealTupleType of Altitude. It also has a default domain set that is a SingletonSet of one standard atmosphere (i.e. 1013.25 hPa).

Parameters:

name - The name for the quantity.

Throws:

visad.VisADException - Couldn't create necessary VisAD object.

Method Detail

getStandardAtmosphereCS

public static AirPressure.AirPressureCoordinateSystem getStandardAtmosphereCS()
                                                                       throws visad.VisADException

Returns a coordinate system transformation for the Standard Atmosphere.

Returns:

A coordinate system transformation for the Standard Atmosphere.

Throws:

visad.VisADException - if a core VisAD failure occurs.

getRealType

public static visad.RealType getRealType()
                                  throws visad.VisADException

Obtains the RealType associated with this class.

Returns:

The RealType associated with this class.

Throws:

visad.VisADException - Couldn't perform necessary VisAD operation.

getRealTupleType

public static visad.RealTupleType getRealTupleType()
                                            throws visad.VisADException

Obtains the RealTupleType associated with this class.

Returns:

The RealTupleType associated with this class.

Throws:

visad.VisADException - Couldn't perform necessary VisAD operation.

toAltitude

public static visad.Data toAltitude(visad.Data pressure)
                             throws visad.VisADException

Converts pressure to altitude.

Parameters:

pressure - A pressure data object.

Returns:

The corresponding altitude data object.

Throws:

visad.VisADException - if a core VisAD failure occurs.

fromAltitude

public static visad.Data fromAltitude(visad.Data altitude)
                               throws visad.VisADException

Converts altitude to pressure.

Parameters:

altitude - A altitude data object.

Returns:

The corresponding pressure data object.

Throws:

visad.VisADException - if a core VisAD failure occurs.