ucar.unidata.view.sounding
Class DryTrajectoryCell

java.lang.Object
  ucar.unidata.view.sounding.ComputeCell
      ucar.unidata.view.sounding.DryTrajectoryCell

public class DryTrajectoryCell
extends ComputeCell

Computes the trajectory of a parcel of air lifted pseudo-adiabatically from an initial level to the LCL.

Version:

$Revision: 1.6 $ $Date: 2005/05/13 18:33:30 $

Author:

Steven R. Emmerson

Constructor Summary

DryTrajectoryCell(DataReference initPresRef, DataReference initTempRef, DataReference lclPresRef)
Constructs from data references.

Method Summary

protected Data

compute(Data[] datums) Computes the output lifted-parcel trajectory from the parcel's initial pressure and temperature, and the pressure at the Lifting Condensation Level (LCL).

Methods inherited from class ucar.unidata.view.sounding.ComputeCell

clean, disableRef, enableAllInputRefs, getInputRefs, getOutputRef, noDataField, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

DryTrajectoryCell

public DryTrajectoryCell(DataReference initPresRef,
                         DataReference initTempRef,
                         DataReference lclPresRef)
                  throws VisADException,
                         RemoteException

Constructs from data references.

Parameters:

initPresRef - The input initial pressure reference.

initTempRef - The input initial temperature reference.

lclPresRef - The input LCL pressure reference.

Throws:

VisADException - if a VisAD failure occurs.

RemoteException - if a Java RMI failure occurs.

Method Detail

compute

protected Data compute(Data[] datums)
                throws TypeException,
                       VisADException,
                       RemoteException

Computes the output lifted-parcel trajectory from the parcel's initial pressure and temperature, and the pressure at the Lifting Condensation Level (LCL).

Specified by:

compute in class ComputeCell

Parameters:

datums - The input data in the same order as during construction. datums[0] is the initial pressure; datums[1] is the initial, in-situ temperature; and datums[2] is the LCL pressure.

Returns:

The corresponding parcel path as a (AirPressure -> AirTemperature) Field.

Throws:

ClassCastException - if an input data reference has the wrong type of data object.

TypeException - if a VisAD data object has the wrong type.

VisADException - if a VisAD failure occurs.

RemoteException - if a Java RMI failure occurs.