org.lcsim.recon.tracking.vsegment.geom

Interface SensorType

All Known Implementing Classes:

Cylinder, Hexagon, Rectangle, Ring, WedgeSideParallel

public interface SensorType

Any class that implements this interface defines a particular shape of silicon sensor and its segmentation into strips or pixels. Current design assumes that all strips are parallel to each other, each strip or pixel has no more than one neighbor in each direction. Reference frame on a sensor: (U, V, W). U is the measurement direction (in the sensor plane, perpendicular to strips), V is along the strips, W forms right-nahded system.

Version:

$Id: SensorType.java,v 1.1 2008/12/06 21:53:43 onoprien Exp $

Author:

D.Onoprienko

Method Summary

Methods

Modifier and Type	Method and Description
Hep3Vector	getChannelDimensions(int channelID) Returns dimensions of a given channel along U, V, W.
int	getChannelID(Hep3Vector point) Converts a point in local sensor coordinates to channel ID.
Hep3Vector	getChannelPosition(int channelID) Returns position of the center of a given channel, in local sensor coordinates.
int	getHitDimension() Returns the dimension of a measurement by this type of sensor (1 for strips, 2 for pixels, etc).
int	getMaxChannelID() Returns maximum channel ID on this sensor.
int	getNeighbor(int channelID, int shiftU, int shiftV) Returns ID of a channel obtained by shifting the given channel by the given number of channels in the given direction along the local reference frame axis.
List<Integer>	getNeighbors(int channelID) Returns a list of IDs of all immediate neighbor channels.
boolean	isValidChannelID(int channelID) Returns true if channel with this ID exists on this sensor.

Method Detail

getChannelID

int getChannelID(Hep3Vector point)

Converts a point in local sensor coordinates to channel ID. Returns -1 if the point is outside of sensor sensitive area.

getChannelPosition

Hep3Vector getChannelPosition(int channelID)

Returns position of the center of a given channel, in local sensor coordinates.

getMaxChannelID

int getMaxChannelID()

Returns maximum channel ID on this sensor.

isValidChannelID

boolean isValidChannelID(int channelID)

Returns true if channel with this ID exists on this sensor.

getChannelDimensions

Hep3Vector getChannelDimensions(int channelID)

Returns dimensions of a given channel along U, V, W.

getHitDimension

int getHitDimension()

Returns the dimension of a measurement by this type of sensor (1 for strips, 2 for pixels, etc). Note that algorithms can ignore this method and use getChannelDimensions(int) to decide how to treat measurements by the given sensor. However, getNeighbors(int) should only look for neighbors in U direction if this method returns 1.

getNeighbor

int getNeighbor(int channelID,
              int shiftU,
              int shiftV)

Returns ID of a channel obtained by shifting the given channel by the given number of channels in the given direction along the local reference frame axis. Returns -1 if shifting puts the point outside of the sensor boundaries. Throws IllegalArgumentException if this type of sensor does not have a concept of a neighbor in the given direction.

Parameters:

channelID - ID of the original channel

shiftV - move in V direction by shiftV channels

shiftU - move in U direction by shiftU channels

getNeighbors

List<Integer> getNeighbors(int channelID)

Returns a list of IDs of all immediate neighbor channels.