This mobility module combines the trajectory of several other mobility modules using superposition. In other words, the position, velocity and acceleration is the sum of the respective quantities of all submodules.

This module allows to form a group mobility model by using a shared mobility component in the mobility of each group member. It also allows to seprate the mobility model of initial positioning from positioning during the simulation. It also makes possible to separate the mobility model of positioning from the mobility model of orientation.

Usage diagram

The following diagram shows usage relationships between types. Unresolved types are missing from the diagram.

Inheritance diagram

The following diagram shows inheritance relationships for this type. Unresolved types are missing from the diagram.

Extends

Name	Type	Description
MobilityBase	simple module	Abstract base module for mobility models.

Parameters

Name	Type	Default value	Description
subjectModule	string	"^"	module path which determines the subject module, the motion of which this mobility model describes, the default value is the parent module
coordinateSystemModule	string	""	module path of the geographic coordinate system module
displayStringTextFormat	string	"p: %p\nv: %v"	format string for the mobility module's display string text
updateDisplayString	bool	true	enables continuous update of the subject module's position via modifying its display string
constraintAreaMinX	double	-inf m	min x position of the constraint area, unconstrained by default (negative infinity)
constraintAreaMinY	double	-inf m	min y position of the constraint area, unconstrained by default (negative infinity)
constraintAreaMinZ	double	-inf m	min z position of the constraint area, unconstrained by default (negative infinity)
constraintAreaMaxX	double	inf m	max x position of the constraint area, unconstrained by default (positive infinity)
constraintAreaMaxY	double	inf m	max y position of the constraint area, unconstrained by default (positive infinity)
constraintAreaMaxZ	double	inf m	max z position of the constraint area, unconstrained by default (positive infinity)
numElements	int		number of combined mobility modules
positionComposition	string	"sum"
orientationComposition	string	"sum"

Properties

Name	Value	Description
display	i=block/cogwheel
class	SuperpositioningMobility

Signals

Name	Type	Unit
mobilityStateChanged	inet::MobilityBase

Direct method calls (observed)

call to	function	info
AttachedMobility	inet::AttachedMobility::receiveSignal	mobilityStateChanged
SuperpositioningMobility	inet::SuperpositioningMobility::receiveSignal	mobilityStateChanged

Called methods (observed)

function	info	call from
inet::SuperpositioningMobility::receiveSignal	mobilityStateChanged	AttachedMobility, CircleMobility, FacingMobility, GaussMarkovMobility, LinearMobility, MassMobility, SuperpositioningMobility, StaticConcentricMobility

Source code

//
// This mobility module combines the trajectory of several other mobility modules
// using superposition. In other words, the position, velocity and acceleration
// is the sum of the respective quantities of all submodules.
//
// This module allows to form a group mobility model by using a shared mobility
// component in the mobility of each group member. It also allows to seprate the
// mobility model of initial positioning from positioning during the simulation.
// It also makes possible to separate the mobility model of positioning from the
// mobility model of orientation.
//
module SuperpositioningMobility extends MobilityBase
{
    parameters:
        int numElements; // number of combined mobility modules
        string positionComposition @enum("zero","sum","average") = default("sum");
        string orientationComposition @enum("zero","sum","average","faceForward") = default("sum");
        element[*].subjectModule = default(""); // disable visual subject module of superposition elements by default
        @class(SuperpositioningMobility);
    submodules:
        element[numElements]: <> like IMobility {
            parameters:
                @display("p=100,100,row,150");
        }
}

File: src/inet/mobility/single/SuperpositioningMobility.ned

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