class Packet_rich_dcm0: public Packet_w4

This is the packet which deals with data in RICH_DCM0 format.

Inheritance:

Public Methods

int iValue(const int ich, const char *what)

with the "what" parameter you can decide which aspect of the data is made available.

int iValue(const int ich, const int iy)

This gives access to the 3 data words per channel, in case the use wants to look at that raw information.

int fillIntArray(int iarr[], const int nlen, int *nwout, const char *what="")

this interface got a special keyword for the benefit of the LVL2 Trigger.

Inherited from Packet_w4:

Inherited from Packet_A:

Inherited from Packet:

Public Methods

virtual float rValue(const int channel)

virtual float rValue(const int channel, const char * what)

virtual float rValue(const int channel, const int iy)

virtual int getArraylength(const char * what ="")

virtual int fillFloatArray(float destination[], const int length, int * nw, const char * what="")

virtual int* getIntArray(int * nw, const char * ="")

virtual float* getFloatArray(int * nw, const char * ="")

virtual int is_pointer_type() const

virtual int convert()

virtual int getLength() const

virtual int getDebugLength() const

virtual int getIdentifier() const

virtual int getPadding() const

virtual int getStructure() const

virtual int getHitFormat() const

virtual int getDataLength() const

virtual voidfullIdentify (std::ostream& os = std::cout) const (ostream & os = cout) const

virtual void dump(std::ostream& os = std::cout)

virtual void gdump(const int how = EVT_HEXADECIMAL, std::ostream& os = std::cout) const

Public

int iValue(const int ich, const char *what)

with the "what" parameter you can decide which aspect of the data is made available. This class is one of those which have several different "kinds" of data; we use this to bring up the AMU cell information and all the misc. items in the FEM headers and trailers.

The AMU info is available as

 packet->iValue(0,"AMU") AMU cell from timing conversion 
 packet->iValue(1,"AMU") AMU cell from "pre" conversion
 packet->iValue(2,"AMU") AMU cell from "post" conversion

In addition, there is

 packet->iValue(0,"ID")       The detector id
 packet->iValue(0,"EVTNR")    The FEM event number
 packet->iValue(0,"MODULE")   The Module ID
 packet->iValue(0,"FLAG")     The Flag value
 packet->iValue(0,"BCLK")     Beam clock value from FEM
 packet->iValue(i,"PARITY")   The longitudinal parity
 packet->iValue(i,"USERWORD") The USERWORD i, where i is from 0 through 7

int iValue(const int ich, const int iy)

This gives access to the 3 data words per channel, in case the use wants to look at that raw information.

We chose to implement the 3 words of information as the two-dimensional interface, so packet->iValue(k,i) gives you the word "i" of channel k, where i is

packet->iValue(k,0) timing tag (TDC)
packet->iValue(k,1) post sample
packet->iValue(k,2) pre sample

and "k" is the channel number from 0 through 160.

There are definitions which make this a bit more trasnparent; you can use

packet->iValue(k,RICH_TIME) timing tag (TDC)
packet->iValue(k,RICH_POSTSAMPLE) post sample
packet->iValue(k,RICH_PRESAMPLE) pre sample

int fillIntArray(int iarr[], const int nlen, int *nwout, const char *what="")

this interface got a special keyword for the benefit of the LVL2 Trigger. Calling

struct richChannelList rcl[160];
int nw, NumberOfChannels;
NumberOfChannels = p->fillIntArray ( (int *) rcl, 160*sizeof(*rcl), &nw, "SPARSE");

returns you the actually fired channels.

richChannelList is defined as

struct richChannelList
{
  int channel;
  int time;
  int post;
  int pre;
};

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