edu.nps.moves.disutil
Class DisMarshaller

java.lang.Object
  edu.nps.moves.disutil.DisMarshaller

public class DisMarshaller
extends java.lang.Object

Marhsalls a Java object PDU to IEEE DIS, optionally changing coordinate systems of some PDUs to conform to the desired coordinate system.

DIS has a standard coordiante system; its origin is a the center of the earth and it is cartesian. It's very difficult for casual programmers to work with, though. Often simulators want to specify object locations in (lat, lon, altitude) or (x,y) offset from some position on the surface of the earth. Also, the timestamp updates are not always easy to work with. In short, there are some fields in the PDUs whose values are not easily set, but that nonetheless need to be correctly specified. This class accoplishes that.

The class can rewrite the coordinates used for position in PDUs to conform to the DIS standard, or someother agreed-upon standard. Fields such as the timestamp or exercise ID can also be set--in short, it can look over the shoulder of the programmer and set the fields correctly even if the programmer doesn't. As with any effort of this type, the line betwen being helpful and being annoying is a fine one.

Author:

DMcG

Nested Class Summary

static class

DisMarshaller.TimestampStyle The various formats we can use for the timestamp format in the PDU header when marshalled

Constructor Summary

DisMarshaller()

Method Summary

byte[]

marshalPdu(Pdu aPdu)

Methods inherited from class java.lang.Object

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

Constructor Detail

DisMarshaller

public DisMarshaller()

Method Detail

marshalPdu

public byte[] marshalPdu(Pdu aPdu)