org.vigia.client.driver.util
Class MovementProcessor

java.lang.Object
  org.vigia.client.driver.util.MovementProcessor

public class MovementProcessor
extends java.lang.Object

Transforms coordinates into PTZ and stores the position of the user

Author:

Ada

Field Summary

protected Coordinates	c The coordinates of the user.
protected static int	HYSTERESIS_X Hysteresis for the x coordinate.
protected static int	HYSTERESIS_Y Hysteresis for the y coordinate.
protected static float	HYSTERESIS_Z Hysteresis for the z coordinate.
protected boolean	init True if no movement has been processed

Constructor Summary

MovementProcessor()
Constructor.

Method Summary

protected int	calculatePan(int x, int y, float z, int xVRes) Calculates the pan movement.
PTZ	calculatePTZ(Coordinates c, int xVRes, int yVRes) Calculates the ptz movement.
protected int	calculateTilt(int x, int y, float z, int yVRes) Calculates the tilt movement.
protected int	calculateZoom(float z) Calculates the zoom movement.
protected boolean	movePan(int x) Decides if a pan movement needs to be done.
protected boolean	moveTilt(int y) Decides if a tilt movement needs to be done.
protected boolean	moveZoom(float z) Decides if a zoom movement needs to be done.

Methods inherited from class java.lang.Object

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

Field Detail

c

protected Coordinates c

The coordinates of the user.

init

protected boolean init

True if no movement has been processed

HYSTERESIS_X

protected static final int HYSTERESIS_X

Hysteresis for the x coordinate.

See Also:

Constant Field Values

HYSTERESIS_Y

protected static final int HYSTERESIS_Y

Hysteresis for the y coordinate.

See Also:

Constant Field Values

HYSTERESIS_Z

protected static final float HYSTERESIS_Z

Hysteresis for the z coordinate.

See Also:

Constant Field Values

Constructor Detail

MovementProcessor

public MovementProcessor()

Constructor.

Method Detail

calculatePTZ

public PTZ calculatePTZ(Coordinates c,
                        int xVRes,
                        int yVRes)

Calculates the ptz movement.

Parameters:

c - the new coordinates of the user.

xVRes - IR virtual screen x resolution.

yVRes - IR virtual screen y resolution.

Returns:

the PTZ movement to be done by the remote camera, null if no movement needs to be done.

calculatePan

protected int calculatePan(int x,
                           int y,
                           float z,
                           int xVRes)

Calculates the pan movement.

Parameters:

x - the x coordinate.

y - the y coordinate.

z - the z coordinate.

xVRes - IR virtual screen x resolution.

Returns:

the calculated pan.

calculateTilt

protected int calculateTilt(int x,
                            int y,
                            float z,
                            int yVRes)

Calculates the tilt movement.

Parameters:

x - the x coordinate

y - the y coordinate.

z - the z coordinate.

yVRes - IR virtual screen y resolution.

Returns:

the calculated tilt.

calculateZoom

protected int calculateZoom(float z)

Calculates the zoom movement.

Parameters:

z - the z coordinate.

Returns:

the calculated zoom.

movePan

protected boolean movePan(int x)

Decides if a pan movement needs to be done.

Parameters:

x - the x coordinate.

Returns:

true if a pan movement needs to be done.

moveTilt

protected boolean moveTilt(int y)

Decides if a tilt movement needs to be done.

Parameters:

y - the y coordinate.

Returns:

true if a tilt movement needs to be done.

moveZoom

protected boolean moveZoom(float z)

Decides if a zoom movement needs to be done.

Parameters:

z - the z coordinate.

Returns:

true if a zoom movement needs to be done.