Muon::RpcCablingOfflineID Struct Reference

Struct to represent the offline identifier of the Rpc measurement decomposed into the particular fields of the layer Identifier: More...

#include <RpcCablingData.h>

Inheritance diagram for Muon::RpcCablingOfflineID:

Collaboration diagram for Muon::RpcCablingOfflineID:

Public Member Functions
bool	measuresPhi () const
	: Does the channel measure phi
bool	stripSide () const
	: Is the strip readout on the opposite side
void	setMeasPhiAndSide (bool measPhi, bool stripSide)
	Sets the measuresPhi & stripSide fields of the cabling data object.

Public Attributes
int8_t &	stationIndex {m_cache.cache[0]}
int8_t &	eta {m_cache.cache[1]}
	Station of the chamber (i.e, BIL,BIS,etc.)
int8_t &	phi {m_cache.cache[2]}
	Eta index of the RPC station.
int8_t &	doubletR {m_cache.cache[3]}
	Station phi of the RPC station.
int8_t &	doubletPhi {m_cache.cache[4]}
	doublet R -> 1,2
int8_t &	doubletZ {m_cache.cache[5]}
	doublet Phi -> 1,2
int8_t &	gasGap {m_cache.cache[6]}
	doublet Z -> 1,2

Static Public Attributes
static constexpr int8_t	measPhiBit = 1 << 0
	gas gap -> 1-3
static constexpr int8_t	stripSideBit = 1 << 1

Private Attributes
union {
long int   hash {0}
int8_t   cache [8]
}	m_cache
int8_t &	m_measPhiStrip {m_cache.cache[7]}

Detailed Description

Struct to represent the offline identifier of the Rpc measurement decomposed into the particular fields of the layer Identifier:

• StationName - doubletR - gasGap
• StationEta - doubletZ - measuresPhi
• StationPhi - doubletPhi while the internal representation of the data is compressed into a single 64-bit integer.

Definition at line 39 of file RpcCablingData.h.

Member Function Documentation

measuresPhi()

bool Muon::RpcCablingOfflineID::measuresPhi ( ) const

inline

: Does the channel measure phi

Definition at line 59 of file RpcCablingData.h.

{ return m_measPhiStrip & measPhiBit; }

setMeasPhiAndSide()

void Muon::RpcCablingOfflineID::setMeasPhiAndSide ( bool measPhi, bool stripSide )

inline

Sets the measuresPhi & stripSide fields of the cabling data object.

Definition at line 63 of file RpcCablingData.h.

                                                             {
            m_measPhiStrip = measPhi * measPhiBit | stripSideBit * stripSide;
        }

stripSide()

bool Muon::RpcCablingOfflineID::stripSide ( ) const

inline

: Is the strip readout on the opposite side

Definition at line 61 of file RpcCablingData.h.

{ return m_measPhiStrip & stripSideBit; }

Member Data Documentation

cache

int8_t Muon::RpcCablingOfflineID::cache[8]

Definition at line 69 of file RpcCablingData.h.

doubletPhi

int8_t& Muon::RpcCablingOfflineID::doubletPhi {m_cache.cache[4]}

doublet R -> 1,2

Definition at line 48 of file RpcCablingData.h.

{m_cache.cache[4]};  

doubletR

int8_t& Muon::RpcCablingOfflineID::doubletR {m_cache.cache[3]}

Station phi of the RPC station.

Definition at line 46 of file RpcCablingData.h.

{m_cache.cache[3]};      

doubletZ

int8_t& Muon::RpcCablingOfflineID::doubletZ {m_cache.cache[5]}

doublet Phi -> 1,2

Definition at line 49 of file RpcCablingData.h.

{m_cache.cache[5]};    

eta

int8_t& Muon::RpcCablingOfflineID::eta {m_cache.cache[1]}

Station of the chamber (i.e, BIL,BIS,etc.)

Definition at line 44 of file RpcCablingData.h.

{m_cache.cache[1]};           

gasGap

int8_t& Muon::RpcCablingOfflineID::gasGap {m_cache.cache[6]}

doublet Z -> 1,2

Definition at line 50 of file RpcCablingData.h.

{m_cache.cache[6]};      

hash

long int Muon::RpcCablingOfflineID::hash {0}

Definition at line 68 of file RpcCablingData.h.

{0};

[union]

union { ... } Muon::RpcCablingOfflineID::m_cache

m_measPhiStrip

int8_t& Muon::RpcCablingOfflineID::m_measPhiStrip {m_cache.cache[7]}

private

Definition at line 71 of file RpcCablingData.h.

{m_cache.cache[7]};     

measPhiBit

int8_t Muon::RpcCablingOfflineID::measPhiBit = 1 << 0

staticconstexpr

gas gap -> 1-3

The BIL-RPC chambers have two strip-layers, both oriented to measure the eta coordinate. From a readout perspective, the strips share the same channel, despite that their readout positions are on opposite sides. In order to disentangle the particular sites of the strips, the second bit of the measPhi field is set.

Definition at line 55 of file RpcCablingData.h.

phi

int8_t& Muon::RpcCablingOfflineID::phi {m_cache.cache[2]}

Eta index of the RPC station.

Definition at line 45 of file RpcCablingData.h.

{m_cache.cache[2]};           

stationIndex

int8_t& Muon::RpcCablingOfflineID::stationIndex {m_cache.cache[0]}

Definition at line 43 of file RpcCablingData.h.

{m_cache.cache[0]};  

stripSideBit

int8_t Muon::RpcCablingOfflineID::stripSideBit = 1 << 1

staticconstexpr

Definition at line 56 of file RpcCablingData.h.

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The documentation for this struct was generated from the following file:

• RpcCablingData.h