Post

ReceiverPdu

Posted Updated
By CREATE3000
6 min read

Overview

ReceiverPdu is a networked Protocol Data Unit (PDU) information node that transmits the state of radio frequency (RF) receivers modeled in a simulation.

The ReceiverPdu node belongs to the DIS component and requires at least level 1, its default container field is children. It is available from X3D version 3.0 or higher.

Hierarchy

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+ X3DNode
  + X3DChildNode
    + X3DSensorNode
      + X3DNetworkSensorNode
        + ReceiverPdu (X3DBoundedObject)*

* Derived from multiple interfaces.

Fields

SFNode [in, out] metadata NULL [X3DMetadataObject]

Information about this node can be contained in a MetadataBoolean, MetadataDouble, MetadataFloat, MetadataInteger, MetadataString or MetadataSet node.

Hint

SFString [in, out] description “”

Author-provided prose that describes intended purpose of the node.

Hint

  • Many XML tools substitute XML character references for special characters automatically if needed within an attribute value (such as & for & ampersand character, or " for “ quotation-mark character).

SFBool [in, out] visible TRUE

Whether or not renderable content within this node is visually displayed.

Hints

  • The visible field has no effect on animation behaviors, event passing or other non-visual characteristics.
  • Content must be visible to be collidable and to be pickable.

SFBool [in, out] bboxDisplay FALSE

Whether to display bounding box for associated geometry, aligned with world coordinates.

Hint

  • The bounding box is displayed regardless of whether contained content is visible.

SFVec3f [ ] bboxSize -1 -1 -1 [0,∞) or −1 −1 −1

Bounding box size is usually omitted, and can easily be calculated automatically by an X3D player at scene-loading time with minimal computational cost. Bounding box size can also be defined as an optional authoring hint that suggests an optimization or constraint.

Hints

SFVec3f [ ] bboxCenter 0 0 0 (-∞,∞)

Bounding box center accompanies bboxSize and provides an optional hint for bounding box position offset from origin of local coordinate system.

Hints

SFBool [in, out] enabled TRUE

Enables/disables the sensor node.

SFBool [out] isActive

Confirm whether there has been a recent network update.

Warning

  • It is an error to define this transient outputOnly field in an X3D file, instead only use it a source for ROUTE events.

SFString [in, out] address “localhost”

Multicast network address, or else ‘localhost’; Example: 224.2.181.145.

SFInt32 [in, out] applicationID 0 [0,65535]

Each simulation application that can respond to simulation management PDUs needs to have a unique applicationID.

SFInt32 [in, out] entityID 0 [0,65535]

EntityID unique ID for entity within that application.

SFString [in, out] multicastRelayHost “”

Fallback server address if multicast not available locally. For example: track.nps.edu.

SFInt32 [in, out] multicastRelayPort 0 [0,65535]

Fallback server port if multicast not available locally. For example: 8010.

SFString [in, out] networkMode “standAlone” [“standAlone”|”networkReader”|”networkWriter”]

Whether this entity is ignoring the network, sending DIS packets to the network, or receiving DIS packets from the network. (1) standAlone: ignore network but still respond to events in local scene. (2) networkReader: listen to network and read PDU packets at readInterval, act as remotely linked copy of entity. (3) networkWriter: send PDU packets to network at writeInterval, act as master entity. Default value “standAlone” ensures that DIS network activation within a scene as networkReader or networkWriter is intentional.

Warnings

  • Do not wrap extra quotation marks around these SFString enumeration values, since “quotation” “marks” are only used for MFString values.
  • Network activity may have associated security issues.

SFInt32 [in, out] port 0 [0,65535]

Multicast network port, for example: 3000.

SFInt32 [in, out] radioID 0 [0,65535]

Identifies a particular radio within a given entity.

SFTime [in, out] readInterval 0.1 (0,∞)

Seconds between read updates, 0 means no reading.

Hint

  • readInterval is a nonnegative SFTime duration interval, not an absolute clock time.

SFFloat [in, out] receivedPower 0 (0,∞)

receivedPower indicates radio frequency (RF) power received, in units of decibel-milliwatts (dBm), after applying any propagation loss and antenna gain

SFInt32 [in, out] receiverState 0 [0,65535]

receiverState indicates if receiver is currently idle or busy via one of these enumerated values: 0 = off, 1 = on but not receiving, or 2 = on and receiving.

SFBool [in, out] rtpHeaderExpected FALSE

Whether RTP headers are prepended to DIS PDUs.

SFInt32 [in, out] siteID 0 [0,65535]

Simulation/exercise siteID of the participating LAN or organization.

SFInt32 [in, out] transmitterApplicationID 0 [0,65535]

Simulation/exercise transmitterApplicationID is unique for transmitter application at that site. Each simulation application that can respond to simulation management PDUs needs to have a unique applicationID.

SFInt32 [in, out] transmitterEntityID 0 [0,65535]

Simulation/exercise transmitterEntityID is a unique ID for a single entity within that application.

SFInt32 [in, out] transmitterRadioID 0 [0,65535]

Identifies a particular radio within a given entity.

SFInt32 [in, out] transmitterSiteID 0 [0,65535]

Simulation/exercise transmitterSiteID of the participating LAN or organization.

SFInt32 [in, out] whichGeometry 1 [-1,∞)

Select geometry to render: -1 for no geometry, 0 for text trace, 1 for default geometry, (optional) higher values to render different states.

SFTime [in, out] writeInterval 1 (0,∞)

Seconds between write updates, 0 means no writing (sending).

Hint

  • writeInterval is a nonnegative SFTime duration interval, not an absolute clock time.

SFBool [out] isNetworkReader

Whether networkMode=’remote’ (listen to network as copy of remote entity).

Warning

  • It is an error to define this transient outputOnly field in an X3D file, instead only use it a source for ROUTE events.

SFBool [out] isNetworkWriter

Whether networkMode=’master’ (output to network as master entity at writeInterval).

Warning

  • It is an error to define this transient outputOnly field in an X3D file, instead only use it a source for ROUTE events.

SFBool [out] isRtpHeaderHeard

Whether incoming DIS packets have an RTP header prepended.

Warning

  • It is an error to define this transient outputOnly field in an X3D file, instead only use it a source for ROUTE events.

SFBool [out] isStandAlone

Whether networkMode=’local’ (ignore network but still respond to local events).

Warning

  • It is an error to define this transient outputOnly field in an X3D file, instead only use it a source for ROUTE events.

SFTime [out] timestamp

DIS timestamp in X3D units (value 0.0 matches 1 January 1970) in seconds.

Warning

  • It is an error to define this transient outputOnly field in an X3D file, instead only use it a source for ROUTE events.

SFVec3d [in, out] geoCoords 0 0 0 (-∞,∞)

Geographic location (specified in current geoSystem coordinates) for children geometry (specified in relative coordinate system, in meters).

Hint

Warning

  • Requires X3D profile='Full' or else include <component name='Geospatial' level='1'/>

MFString [ ] geoSystem [ “GD”, “WE” ]

Identifies spatial reference frame: Geodetic (GD), Geocentric (GC), Universal Transverse Mercator (UTM). Supported values: “GD” “UTM” or “GC” followed by additional quoted string parameters as appropriate for the type.

Hints

Warning

  • Deprecated values are GDC (replaced by GD) and GCC (replaced by GC).

Advice

Hints

Warning

  • Requires X3D profile='Full' or else include <component name='DIS' level='1'/>

See Also

DIS

components, DIS
ReceiverPdu DIS
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