Class AttenuationOutputSingleThread

java.lang.Object

org.noise_planet.noisemodelling.jdbc.output.AttenuationOutputSingleThread

All Implemented Interfaces:

CutPlaneVisitor

public class AttenuationOutputSingleThread
extends Object
implements CutPlaneVisitor

Managed by a single thread, process all incoming vertical profile, compute attenuation and push on appropriate stack for exporting result values in a thread safe way. It processes the receiver one at a time.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	AttenuationOutputSingleThread.TimePeriodParameters	representing the noise levels for different time periods.

Nested classes/interfaces inherited from interface CutPlaneVisitor

CutPlaneVisitor.PathSearchStrategy

Field Summary

Fields

Modifier and Type	Field	Description
List<AttenuationOutput>	attenuationOutputs
static final double	GAIN_ESTIMATED_FREE_FIELD_PATH_A
static final double	GAIN_ESTIMATED_FREE_FIELD_PATH_B

Constructor Summary

Constructors

Constructor	Description
AttenuationOutputSingleThread(AttenuationOutputMultiThread multiThreadParent, org.h2gis.api.ProgressVisitor progressVisitor)	Constructs a AttenuationOutputSingleThread object with a multithreaded parent AttenuationOutputMultiThread instance.

Method Summary

Modifier and Type	Method	Description
void	finalizeReceiver(PathFinder.ReceiverPointInfo receiver)	No more propagation paths will be pushed for this receiver identifier
static double[]	minimalDirectFieldAttenuation(PathFinder.SourcePointInfo source, PathFinder.ReceiverPointInfo receiver, AttenuationParameters data)	Compute the minimum attenuation that could exist between two points (so free field with reflective field)
CutPlaneVisitor.PathSearchStrategy	onNewCutPlane(CutProfile cutProfile)	Manage attenuation computation each time a cutProfile is found.
void	pushInStack(ConcurrentLinkedDeque<AttenuationOutput> stack, List<AttenuationOutput> data)	Adds Cnossos paths to a concurrent stack while maintaining the maximum stack size.
void	pushInStack(ConcurrentLinkedDeque<ReceiverNoiseLevel> stack, ReceiverNoiseLevel data)	Pushes attenuation data into a concurrent linked deque.
void	startReceiver(PathFinder.ReceiverPointInfo receiver, Collection<PathFinder.SourcePointInfo> sourceList)	Called before looking for vertical cut planes between the receiver and the sources.

Methods inherited from class Object

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

Field Details

GAIN_ESTIMATED_FREE_FIELD_PATH_A

public static final double GAIN_ESTIMATED_FREE_FIELD_PATH_A

See Also:

• Constant Field Values

GAIN_ESTIMATED_FREE_FIELD_PATH_B

public static final double GAIN_ESTIMATED_FREE_FIELD_PATH_B

See Also:

• Constant Field Values

attenuationOutputs

public List<AttenuationOutput> attenuationOutputs

Constructor Details

AttenuationOutputSingleThread

public AttenuationOutputSingleThread(AttenuationOutputMultiThread multiThreadParent,
 org.h2gis.api.ProgressVisitor progressVisitor)

Constructs a AttenuationOutputSingleThread object with a multithreaded parent AttenuationOutputMultiThread instance. This class is not thread-safe

Parameters:

multiThreadParent - multi thread cell computation manager

progressVisitor - progress information

Method Details

onNewCutPlane

public CutPlaneVisitor.PathSearchStrategy onNewCutPlane(CutProfile cutProfile)

Manage attenuation computation each time a cutProfile is found. Note: in the case of CNOSSOS propagation model, a new instance of PropagationModel needs to be created for each cutProfile to ensure a new computation of the cnossosPaths.

Specified by:

onNewCutPlane in interface CutPlaneVisitor

Parameters:

cutProfile - vertical profile

Returns:

Search strategy

minimalDirectFieldAttenuation

public static double[] minimalDirectFieldAttenuation(PathFinder.SourcePointInfo source,
 PathFinder.ReceiverPointInfo receiver,
 AttenuationParameters data)

Compute the minimum attenuation that could exist between two points (so free field with reflective field)

Parameters:

source - Source position x,y,z

receiver - Receiver position x,y,z

data - Scene parameters

Returns:

Sound attenuation spectrum in w

startReceiver

public void startReceiver(PathFinder.ReceiverPointInfo receiver,
 Collection<PathFinder.SourcePointInfo> sourceList)

Description copied from interface: CutPlaneVisitor

Called before looking for vertical cut planes between the receiver and the sources.

Specified by:

startReceiver in interface CutPlaneVisitor

Parameters:

receiver - Receiver information

sourceList - All sources in the range of this receiver sorted by the distance from the receiver

pushInStack

public void pushInStack(ConcurrentLinkedDeque<ReceiverNoiseLevel> stack,
 ReceiverNoiseLevel data)

Pushes attenuation data into a concurrent linked deque.

Parameters:

stack - Stack to feed

data - receiver noise level in dB

pushInStack

public void pushInStack(ConcurrentLinkedDeque<AttenuationOutput> stack,
 List<AttenuationOutput> data)

Adds Cnossos paths to a concurrent stack while maintaining the maximum stack size.

Parameters:

stack - Stack to feed

data - rays

finalizeReceiver

public void finalizeReceiver(PathFinder.ReceiverPointInfo receiver)

No more propagation paths will be pushed for this receiver identifier

Specified by:

finalizeReceiver in interface CutPlaneVisitor

Parameters:

receiver - attributes of the receiver point