GeoTools Class Reference

The class collects utility functions for numbering layers, sensors snd chips based on current VXD geometry. More...

#include <GeoTools.h>

Collaboration diagram for GeoTools:

Public Member Functions
	GeoTools ()
	Constructor builds lookup maps from GeoCache. More...
unsigned short	getNumberOfLayers () const
	Get number of VXD layers. More...
unsigned short	getNumberOfPXDLayers () const
	Get number of PXD layers. More...
unsigned short	getNumberOfSVDLayers () const
	Get number of SVD layers. More...
std::vector< unsigned short >	getLayers () const
	Get numbers of VXD layers. More...
std::vector< unsigned short >	getPXDLayers () const
	Get numbers of PXD layers. More...
std::vector< unsigned short >	getSVDLayers () const
	Get numbers of SVD layers. More...
unsigned short	getFirstLayer () const
	Get first (innermost) layer number. More...
unsigned short	getLastLayer () const
	Get last (outermost) layer number. More...
short	getFirstPXDLayer () const
	Get first (innermost) PXD layer number. More...
short	getLastPXDLayer () const
	Get last (outermost) PXD layer number. More...
short	getFirstSVDLayer () const
	Get first (innermost) SVD layer number. More...
short	getLastSVDLayer () const
	Get last (outermost) SVD layer number. More...
unsigned short	getNumberOfSensors () const
	Get total number of sensors. More...
unsigned short	getNumberOfPXDSensors () const
	Get number of PXD sensors. More...
unsigned short	getNumberOfSVDSensors () const
	Get number of SVD sensors. More...
size_t	getTotalPXDChips () const
	Get total number of chips in PXD. More...
unsigned short	getNumberOfPXDUSideChips (unsigned short=0) const
	Get number of u-side PXD chips. More...
unsigned short	getNumberOfPXDVSideChips (unsigned short=0) const
	Get number of v-side PXD chips. More...
unsigned short	getNumberOfPXDReadoutGates (unsigned short=0) const
	Get number of PXD readout gates. More...
size_t	getTotalSVDChips () const
	Get total number of chips in SVD. More...
unsigned short	getNumberOfSVDUSideChips (unsigned short=0) const
	Get number of u-side SVD chips. More...
unsigned short	getNumberOfSVDVSideChips (unsigned short layer) const
	Get number of v-side SVD chips. More...
unsigned short	getSVDChannelsPerChip () const
	Get number of strips per APV chip in SVD. More...
int	getSensorIndex (VxdID sensorID) const
	Return index of s VXD sensor for plotting. More...
VxdID	getSensorIDFromIndex (int vxdIndex) const
	Reverse lookup VxdID from list index. More...
int	getPXDSensorIndex (VxdID sensorID) const
	Return index of sensor in plots. More...
int	getPXDSensorIndex (int layer, int ladder, int sensor) const
	Return index of sensor in plots. More...
VxdID	getSensorIDFromPXDIndex (int pxdIndex) const
	Return index of a PXD sensor in plots. More...
int	getPXDChipIndex (VxdID sensorID, bool isU, int chip) const
	Return PXD chip index in the list of PXD chips. More...
int	getPXDChipIndex (int layer, int ladder, int sensor, bool isU, int chip) const
	Return PXD chip index in the list of PXD chips. More...
VxdID	getChipIDFromPXDIndex (int pxdChipIndex) const
	Return chipID (VxdID + side and chipNo) for index in the list. More...
bool	isPXDSideU (VxdID chipID) const
	Decode sensor side from a PXD ChipID. More...
unsigned short	getPXDChipNumber (VxdID chipID) const
	Decode (1-based) chip number from a PXD ChipID. More...
int	getSVDSensorIndex (VxdID sensorID) const
	Return index of SVD sensor in plots. More...
int	getSVDSensorIndex (int layer, int ladder, int sensor) const
	Return index of SVD sensor in plots. More...
VxdID	getSensorIDFromSVDIndex (int svdIndex) const
	Return VxdID for SVD index of sensor in plots. More...
int	getSVDChipIndex (VxdID sensorID, bool isU, int chip) const
	Return SVD chip index in the list of SVD chips. More...
int	getSVDChipIndex (int layer, int ladder, int sensor, bool isU, int chip) const
	Return SVD chip index in the list of SVD chips. More...
VxdID	getChipIDFromSVDIndex (int svdChipIndex) const
	Return chipID (VxdID with side and chipNo) for index in the list. More...
bool	isSVDSideU (VxdID chipID) const
	Decode sensor side from a SVD ChipID. More...
unsigned short	getSVDChipNumber (VxdID chipID) const
	Decode (1-based) chip number from a SVD ChipID. More...
int	getLayerIndex (unsigned short layer) const
	Return index of layer in plots. More...
unsigned short	getLayerNumberFromLayerIndex (int index) const
	Return layer number for list index. More...

Private Member Functions
void	createListOfLayers ()
	Create list of VXD layers.
void	createListOfPXDChips ()
	Create list of PXD chips.
void	createListOfSVDChips ()
	Create list of SVD chips.

Private Attributes
std::vector< VxdID >	m_listOfSensors
	List of all VXD sesnros.
size_t	m_firstSVDIndex
	Number of the first SVD sensor in the list.
std::vector< unsigned short >	m_listOfLayers
	List of all VXD layers.
unsigned short	m_firstSVDLayer
	List index of the first SVD layer.
std::vector< VxdID >	m_listOfPXDChips
	List of all PXD chips.
std::vector< VxdID >	m_listOfSVDChips
	List of all SVD chips.
const unsigned short	c_nPXDChipsU = 4
	Number of PXD chips per sensor in u (DCD) (=4) on Belle II.
const unsigned short	c_nPXDChipsV = 6
	Number of PXD chips per sensor in v (Switchers) (=6) on Belle II.
const unsigned short	c_nPXDReadoutGates = 192
	Number of PXD readout gates (or total number of Switcher channels) on Belle II.
const unsigned short	c_nSVDChipsL3 = 6
	Number of SVD chips per sensor in u,v in layer 3 (=6) on Belle II.
const unsigned short	c_nSVDChipsLu = 6
	Number of SVD chips per sensor in u in layers 4,5,6 (=6) on Belle II.
const unsigned short	c_nSVDChipsLv = 4
	Number of SVD chips per sensor in v in layers 4,5,6 (=4) on Belle II.
const unsigned short	c_nSVDChannelsPerChip = 128
	Number of SVD strips per chip on Belle II.

Detailed Description

The class collects utility functions for numbering layers, sensors snd chips based on current VXD geometry.

Definition at line 35 of file GeoTools.h.

Constructor & Destructor Documentation

GeoTools()

GeoTools

(

)

Constructor builds lookup maps from GeoCache.

The constructor calls VXD::GeoCache, should be called in initialize() method of modules, not in module constructor.

Definition at line 19 of file GeoTools.cc.

{
  const VXD::GeoCache& geo = VXD::GeoCache::getInstance();
  m_listOfSensors = geo.getListOfSensors();
  // The list comes from a map, and is NOT sorted!
  std::sort(m_listOfSensors.begin(), m_listOfSensors.end());
  m_firstSVDIndex = std::distance(
                      m_listOfSensors.begin(),
                      std::find_if(m_listOfSensors.begin(), m_listOfSensors.end(),
                                   [](VxdID id)->bool { return (id.getLayerNumber() > 2); })
                    ); // works correctly even with no SVD sensors
  createListOfLayers();
  createListOfPXDChips();
  createListOfSVDChips();
}

Member Function Documentation

getChipIDFromPXDIndex()

VxdID getChipIDFromPXDIndex ( int  pxdChipIndex ) const

inline

Return chipID (VxdID + side and chipNo) for index in the list.

Parameters

pxdChipIndex

Index in the list of PXD sensors.

Returns

chipID: VxdID + chip number/side encoded in segment part.

Definition at line 300 of file GeoTools.h.

      {
        return (chipID.getSegmentNumber() < c_nPXDChipsU);

getChipIDFromSVDIndex()

VxdID getChipIDFromSVDIndex ( int  svdChipIndex ) const

inline

Return chipID (VxdID with side and chipNo) for index in the list.

Parameters

svdChipIndex

Index in the list of SVD sensors.

Returns

chipID: VxdID with chip number/side encoded in segment part.

Definition at line 398 of file GeoTools.h.

getFirstLayer()

unsigned short getFirstLayer ( ) const

inline

Get first (innermost) layer number.

Returns

number of innermost layer

Definition at line 96 of file GeoTools.h.

getFirstPXDLayer()

short getFirstPXDLayer ( ) const

inline

Get first (innermost) PXD layer number.

Returns

number of innermost PXD layer, -1 if no PXD layers

Definition at line 106 of file GeoTools.h.

getFirstSVDLayer()

short getFirstSVDLayer ( ) const

inline

Get first (innermost) SVD layer number.

Returns

number of innermost SVD layer, -1 if no SVD layers

Definition at line 122 of file GeoTools.h.

getLastLayer()

unsigned short getLastLayer ( ) const

inline

Get last (outermost) layer number.

Returns

number of last (outermost) layer

Definition at line 101 of file GeoTools.h.

getLastPXDLayer()

short getLastPXDLayer ( ) const

inline

Get last (outermost) PXD layer number.

Returns

number of last (outermost) layer -1 if no PXD layers

Definition at line 114 of file GeoTools.h.

getLastSVDLayer()

short getLastSVDLayer ( ) const

inline

Get last (outermost) SVD layer number.

Returns

number of last (outermost) layer -1 if no SVD layers

Definition at line 130 of file GeoTools.h.

getLayerIndex()

int getLayerIndex ( unsigned short  layer ) const

inline

Return index of layer in plots.

Parameters

layer

layer number.

Returns

Index of layer in plots.

Definition at line 440 of file GeoTools.h.

getLayerNumberFromLayerIndex()

unsigned short getLayerNumberFromLayerIndex ( int  index ) const

inline

Return layer number for list index.

Parameters

index

List index of the layer

Returns

Layer number

Definition at line 452 of file GeoTools.h.

getLayers()

std::vector<unsigned short> getLayers ( ) const

inline

Get numbers of VXD layers.

Returns

std::vector with numbers of VXD layers

Definition at line 67 of file GeoTools.h.

getNumberOfLayers()

unsigned short getNumberOfLayers ( ) const

inline

Get number of VXD layers.

Returns

number of VXD layers in current geometry

Definition at line 51 of file GeoTools.h.

getNumberOfPXDLayers()

unsigned short getNumberOfPXDLayers ( ) const

inline

Get number of PXD layers.

Returns

number of PXD layers in current geometry

Definition at line 56 of file GeoTools.h.

getNumberOfPXDReadoutGates()

unsigned short getNumberOfPXDReadoutGates ( unsigned short  = 0 ) const

inline

Get number of PXD readout gates.

Parameters

(unused)

Layer of the sensor

Returns

number of v-side PXD readout gates

Definition at line 177 of file GeoTools.h.

getNumberOfPXDSensors()

unsigned short getNumberOfPXDSensors ( ) const

inline

Get number of PXD sensors.

Returns

number of PXD sensors

Definition at line 143 of file GeoTools.h.

getNumberOfPXDUSideChips()

unsigned short getNumberOfPXDUSideChips ( unsigned short  = 0 ) const

inline

Get number of u-side PXD chips.

Parameters

(unused)

Layer of the sensor

Returns

number of u-side chips

Definition at line 163 of file GeoTools.h.

getNumberOfPXDVSideChips()

unsigned short getNumberOfPXDVSideChips ( unsigned short  = 0 ) const

inline

Get number of v-side PXD chips.

Parameters

(unused)

Layer of the sensor

Returns

number of v-side chips

Definition at line 170 of file GeoTools.h.

getNumberOfSensors()

unsigned short getNumberOfSensors ( ) const

inline

Get total number of sensors.

Returns

total number of sensors, PXD+SVD

Definition at line 138 of file GeoTools.h.

getNumberOfSVDLayers()

unsigned short getNumberOfSVDLayers ( ) const

inline

Get number of SVD layers.

Returns

number of SVD layers in current geometry

Definition at line 61 of file GeoTools.h.

getNumberOfSVDSensors()

unsigned short getNumberOfSVDSensors ( ) const

inline

Get number of SVD sensors.

Returns

number of SVD sensors

Definition at line 148 of file GeoTools.h.

getNumberOfSVDUSideChips()

unsigned short getNumberOfSVDUSideChips ( unsigned short  = 0 ) const

inline

Get number of u-side SVD chips.

Parameters

(unused)

Layer of the sensor

Returns

number of u-side chips

Definition at line 189 of file GeoTools.h.

getNumberOfSVDVSideChips()

unsigned short getNumberOfSVDVSideChips ( unsigned short  layer ) const

inline

Get number of v-side SVD chips.

Parameters

layer

Layer of the sensor

Returns

number of v-side chips

Definition at line 196 of file GeoTools.h.

getPXDChipIndex() [1/2]

int getPXDChipIndex ( int  layer, int  ladder, int  sensor, bool  isU, int  chip  ) const

inline

Return PXD chip index in the list of PXD chips.

Parameters

layer	layer position of sensor
ladder	ladder position of sensor
sensor	sensor position of sensor
isU	true for u side of the sensor (DCD)
chip	Chip number on sensor (DCD or switcher, 1-based)

Returns

Index of sensor in plots.

Definition at line 291 of file GeoTools.h.

getPXDChipIndex() [2/2]

int getPXDChipIndex ( VxdID  sensorID, bool  isU, int  chip  ) const

inline

Return PXD chip index in the list of PXD chips.

1-based chip numbering.

Parameters

sensorID	VxdID of the sensor
isU	true for u side of the sensor (DCD)
chip	Chip position on sensor - DCDs or Switchers

Returns

Index of sensor in plots.

Definition at line 273 of file GeoTools.h.

getPXDChipNumber()

unsigned short getPXDChipNumber ( VxdID  chipID ) const

inline

Decode (1-based) chip number from a PXD ChipID.

Parameters

chipID

VxdID with chip number encoded in Segment part.

Returns

Chip number on the respective sensor side.

Definition at line 318 of file GeoTools.h.

getPXDLayers()

std::vector<unsigned short> getPXDLayers ( ) const

inline

Get numbers of PXD layers.

Returns

std::vector with numbers of PXD layers

Definition at line 72 of file GeoTools.h.

getPXDSensorIndex() [1/2]

int getPXDSensorIndex ( int  layer, int  ladder, int  sensor  ) const

inline

Return index of sensor in plots.

Use for only PXD sensor counting, without SVD.

Parameters

layer	layer position of sensor
ladder	ladder position of sensor
sensor	sensor position of sensor

Returns

Index of sensor in plots.

Definition at line 249 of file GeoTools.h.

getPXDSensorIndex() [2/2]

int getPXDSensorIndex ( VxdID  sensorID ) const

inline

Return index of sensor in plots.

A simple alias to getSensorIndex()

Parameters

sensorID

VxdID of the sensor

Returns

Index of sensor in plots.

Definition at line 238 of file GeoTools.h.

getSensorIDFromIndex()

VxdID getSensorIDFromIndex ( int  vxdIndex ) const

inline

Reverse lookup VxdID from list index.

Parameters

vxdIndex

list index of sensor in geometry (PXD then SVD)

Returns

VxdID of the sensor NB: Use specialized moethod to get VxdIDs for SVD-only indices!

Definition at line 225 of file GeoTools.h.

getSensorIDFromPXDIndex()

VxdID getSensorIDFromPXDIndex ( int  pxdIndex ) const

inline

Return index of a PXD sensor in plots.

Use for only PXD sensor counting, without SVD.

Parameters

pxdIndex

Index of sensor in plots.

Definition at line 258 of file GeoTools.h.

getSensorIDFromSVDIndex()

VxdID getSensorIDFromSVDIndex ( int  svdIndex ) const

inline

Return VxdID for SVD index of sensor in plots.

Uses SVD sensor count, without PXD.

Parameters

svdIndex

Index of the SVD sensor.

Definition at line 353 of file GeoTools.h.

getSensorIndex()

int getSensorIndex ( VxdID  sensorID ) const

inline

Return index of s VXD sensor for plotting.

Parameters

sensorID

VxdID of the sensor

Returns

Index of sensor in plots.

Definition at line 212 of file GeoTools.h.

getSVDChannelsPerChip()

unsigned short getSVDChannelsPerChip ( ) const

inline

Get number of strips per APV chip in SVD.

Returns

number of chips per APV in SVD.

Definition at line 202 of file GeoTools.h.

getSVDChipIndex() [1/2]

int getSVDChipIndex ( int  layer, int  ladder, int  sensor, bool  isU, int  chip  ) const

inline

Return SVD chip index in the list of SVD chips.

Parameters

layer	layer position of sensor
ladder	ladder position of sensor
sensor	sensor position of sensor
isU	true for u side of the sensor
chip	Chip position on sensor (1-based)

Returns

Index of sensor in plots.

Definition at line 389 of file GeoTools.h.

getSVDChipIndex() [2/2]

int getSVDChipIndex ( VxdID  sensorID, bool  isU, int  chip  ) const

inline

Return SVD chip index in the list of SVD chips.

Parameters

sensorID	VxdID of the sensor
isU	true for u side of the sensor
chip	Chip position on sensor (1-based)

Returns

Index of sensor in plots.

Definition at line 368 of file GeoTools.h.

getSVDChipNumber()

unsigned short getSVDChipNumber ( VxdID  chipID ) const

inline

Decode (1-based) chip number from a SVD ChipID.

Parameters

chipID

VxdID with chip number encoded in Segment part.

Returns

Chip number on the respective sensor side.

Definition at line 417 of file GeoTools.h.

getSVDLayers()

std::vector<unsigned short> getSVDLayers ( ) const

inline

Get numbers of SVD layers.

Returns

std::vector with numbers of SVD layers

Definition at line 84 of file GeoTools.h.

getSVDSensorIndex() [1/2]

int getSVDSensorIndex ( int  layer, int  ladder, int  sensor  ) const

inline

Return index of SVD sensor in plots.

This is solely SVD counting starting from 0.

Parameters

layer	layer position of sensor
ladder	ladder position of sensor
sensor	sensor position of sensor

Returns

Index of sensor in plots.

Definition at line 344 of file GeoTools.h.

getSVDSensorIndex() [2/2]

int getSVDSensorIndex ( VxdID  sensorID ) const

inline

Return index of SVD sensor in plots.

This is solely SVD counting starting from 0.

Parameters

sensorID

VxdID of the sensor

Returns

Index of sensor in plots.

Definition at line 332 of file GeoTools.h.

getTotalPXDChips()

size_t getTotalPXDChips ( ) const

inline

Get total number of chips in PXD.

Returns

total number of chips in PXD

Definition at line 157 of file GeoTools.h.

getTotalSVDChips()

size_t getTotalSVDChips ( ) const

inline

Get total number of chips in SVD.

Returns

total number of chips in SVD

Definition at line 183 of file GeoTools.h.

isPXDSideU()

bool isPXDSideU ( VxdID  chipID ) const

inline

Decode sensor side from a PXD ChipID.

Parameters

chipID

VxdID with chip number encoded in Segment part.

Returns

true if the chip is on u-side.

Definition at line 309 of file GeoTools.h.

isSVDSideU()

bool isSVDSideU ( VxdID  chipID ) const

inline

Decode sensor side from a SVD ChipID.

Parameters

chipID

VxdID with chip number encoded in Segment part.

Returns

true if the chip is on u-side.

Definition at line 407 of file GeoTools.h.

---

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

• vxd/geometry/include/GeoTools.h
• vxd/geometry/src/GeoTools.cc