MassMobility Class Reference

#include <MassMobility.h>

Inheritance diagram for MassMobility:

List of all members.

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Detailed Description

Models the mobility of with mass, making random motions. See NED file for more info.

Author:

Emin Ilker Cetinbas, Andras Varga

Protected Member Functions
virtual void	initialize (int)
	Initializes mobility model parameters.
virtual void	handleSelfMsg (cMessage *msg)
	Called upon arrival of a self messages.
void	move ()
	Move the host.
Protected Attributes
cPar *	changeInterval
cPar *	changeAngleBy
cPar *	speed
double	currentSpeed
	speed of the host
double	currentAngle
	angle of linear motion
double	updateInterval
	time interval to update the hosts position
Coord	step
	calculated from speed, angle and updateInterval

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Member Function Documentation

void MassMobility::handleSelfMsg (  cMessage *  msg  )  [protected, virtual]

Called upon arrival of a self messages. The only self message possible is to indicate a new movement. Reimplemented from BasicMobility. { switch (msg->kind()) { case MK_UPDATE_POS: move(); updatePosition(); scheduleAt(simTime() + updateInterval, msg); break; case MK_CHANGE_DIR: currentAngle += changeAngleBy->doubleValue(); currentSpeed = speed->doubleValue(); step.x = currentSpeed * cos(PI * currentAngle / 180) * updateInterval; step.y = currentSpeed * sin(PI * currentAngle / 180) * updateInterval; scheduleAt(simTime() + changeInterval->doubleValue(), msg); break; default: opp_error("Unknown self message kind in MassMobility class"); break; } }

void MassMobility::initialize (  int  stage  )  [protected, virtual]

Initializes mobility model parameters. Reads the updateInterval and the velocity If the host is not stationary it calculates a random position and schedules a timer to trigger the first movement Reimplemented from BasicMobility. { BasicMobility::initialize(stage); EV << "initializing MassMobility stage " << stage << endl; if (stage == 0) { updateInterval = par("updateInterval"); changeInterval = &par("changeInterval"); changeAngleBy = &par("changeAngleBy"); speed = &par("speed"); // initial speed and angle currentSpeed = speed->doubleValue(); currentAngle = uniform(0, 360); step.x = currentSpeed * cos(PI * currentAngle / 180) * updateInterval; step.y = currentSpeed * sin(PI * currentAngle / 180) * updateInterval; scheduleAt(simTime() + uniform(0, updateInterval), new cMessage("move", MK_UPDATE_POS)); scheduleAt(simTime() + uniform(0, changeInterval->doubleValue()), new cMessage("turn", MK_CHANGE_DIR)); } }

void MassMobility::move (   )  [protected]

Move the host. Move the host if the destination is not reached yet. Otherwise calculate a new random position { pos += step; // do something if we reach the wall Coord dummy; handleIfOutside(REFLECT, dummy, step, currentAngle); EV << " xpos= " << pos.x << " ypos=" << pos.y << " speed=" << currentSpeed << endl; }

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Member Data Documentation

cPar* MassMobility::changeAngleBy [protected]

cPar* MassMobility::changeInterval [protected]

double MassMobility::currentAngle [protected]

angle of linear motion

double MassMobility::currentSpeed [protected]

speed of the host

cPar* MassMobility::speed [protected]

Coord MassMobility::step [protected]

calculated from speed, angle and updateInterval

double MassMobility::updateInterval [protected]

time interval to update the hosts position

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The documentation for this class was generated from the following files:

• MassMobility.h
• MassMobility.cc

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