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java.lang.Objectjava.lang.Thread
jaron.flightgear.FlightGearReceiver
public class FlightGearReceiver
The FlightGearReceiver
class provides a TCP/IP connection to the
FlightGear flight simulator (FG) via the FG generic output interface.
FlightGearReceiver
runs as a thread and by instantiating it
waits for the incoming connection of FG (at port 5555 by default).
The instantiating has to be done before FG starts up, else FG reports a
connection error and terminates.
At the moment the FlightGearReceiver
is limited to receiving
numeric data.
Be aware that running FG and a Java application that uses the
FlightGearReceiver
needs a computer with sufficient performance.
The consequence of a lack of performance is, that some of the data sent by FG
could be lost because of timing issues. In this case you could run FG and the
Java application on two different machines via a network connection.
Nested Class Summary |
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Nested classes/interfaces inherited from class java.lang.Thread |
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java.lang.Thread.State, java.lang.Thread.UncaughtExceptionHandler |
Field Summary | |
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static int |
DEFAULT_PORT
The default port that is used for the incoming connection. |
static float |
DEFAULT_UPDATE_FREQUENCY
The default update frequency of the FlightGearReceiver
is 10.0fHz. |
static java.lang.String |
kAileron
A string constant that is used to reference a FG XML ouput value. |
static java.lang.String |
kAirSpeed
A string constant that is used to reference a FG XML ouput value. |
static java.lang.String |
kAltitude
A string constant that is used to reference a FG XML ouput value. |
static java.lang.String |
kElevator
A string constant that is used to reference a FG XML ouput value. |
static java.lang.String |
kPitch
A string constant that is used to reference a FG XML ouput value. |
static java.lang.String |
kPitchRate
A string constant that is used to reference a FG XML ouput value. |
static java.lang.String |
kRoll
A string constant that is used to reference a FG XML ouput value. |
static java.lang.String |
kRollRate
A string constant that is used to reference a FG XML ouput value. |
static java.lang.String |
kRudder
A string constant that is used to reference a FG XML ouput value. |
static java.lang.String |
kThrottle
A string constant that is used to reference a FG XML ouput value. |
static java.lang.String |
kVerticalSpeed
A string constant that is used to reference a FG XML ouput value. |
static java.lang.String |
kYawRate
A string constant that is used to reference a FG XML ouput value. |
Fields inherited from class java.lang.Thread |
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MAX_PRIORITY, MIN_PRIORITY, NORM_PRIORITY |
Constructor Summary | |
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FlightGearReceiver()
Creates a new FlightGearReceiver and starts a Thread
that listens for incoming connections. |
|
FlightGearReceiver(int port)
Creates a new FlightGearReceiver and starts a Thread
that listens for incoming connections. |
Method Summary | |
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void |
addSignalListener(java.lang.String key,
SignalListener listener)
Adds a listener to a FlightGear (FG) signal that is identified by a key. |
void |
run()
|
void |
setDebug(java.lang.Boolean debug)
Sets the debugging flag which determines if the debugging informations should be printed to the console. |
void |
setUpdateFrequency(float updateFrequency)
Sets the update frequency for the FlightGearReceiver . |
void |
shutDown()
Shuts this receiver down and disconnects the client. |
Methods inherited from class java.lang.Thread |
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activeCount, checkAccess, countStackFrames, currentThread, destroy, dumpStack, enumerate, getAllStackTraces, getContextClassLoader, getDefaultUncaughtExceptionHandler, getId, getName, getPriority, getStackTrace, getState, getThreadGroup, getUncaughtExceptionHandler, holdsLock, interrupt, interrupted, isAlive, isDaemon, isInterrupted, join, join, join, resume, setContextClassLoader, setDaemon, setDefaultUncaughtExceptionHandler, setName, setPriority, setUncaughtExceptionHandler, sleep, sleep, start, stop, stop, suspend, toString, yield |
Methods inherited from class java.lang.Object |
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equals, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Field Detail |
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public static final float DEFAULT_UPDATE_FREQUENCY
FlightGearReceiver
is 10.0fHz.
public static final int DEFAULT_PORT
public static final java.lang.String kElevator
public static final java.lang.String kAileron
public static final java.lang.String kRudder
public static final java.lang.String kThrottle
public static final java.lang.String kPitch
public static final java.lang.String kRoll
public static final java.lang.String kPitchRate
public static final java.lang.String kRollRate
public static final java.lang.String kYawRate
public static final java.lang.String kAirSpeed
public static final java.lang.String kVerticalSpeed
public static final java.lang.String kAltitude
Constructor Detail |
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public FlightGearReceiver(int port)
FlightGearReceiver
and starts a Thread
that listens for incoming connections.
port
- the port the receiver listens topublic FlightGearReceiver()
FlightGearReceiver
and starts a Thread
that listens for incoming connections. It listens on the default port
DEFAULT_PORT
.
DEFAULT_PORT
Method Detail |
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public void addSignalListener(java.lang.String key, SignalListener listener)
EventListener
mechanism.
key
- a string that identifies the FG ouput datalistener
- the listener to be addedSignalListener
public void setUpdateFrequency(float updateFrequency)
FlightGearReceiver
.
The default update frequency is set to 10.0fHz.
updateFrequency
- the new frequency in Hzpublic void run()
run
in interface java.lang.Runnable
run
in class java.lang.Thread
public void setDebug(java.lang.Boolean debug)
debug
- set to true
if additional debugging information
should be printedpublic void shutDown()
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