CSCChannelMapperPostls1.cc

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#include "CalibMuon/CSCCalibration/interface/CSCChannelMapperPostls1.h"

int CSCChannelMapperPostls1::rawStripChannel(const CSCDetId &id, int igeo) const {
  // Translate a geometry-oriented strip channel in range 1-80, igeo,
  // into corresponding raw channel.

  int iraw = igeo;

  bool zplus = (id.endcap() == 1);

  bool me1a = (id.station() == 1) && (id.ring() == 4);
  bool me1b = (id.station() == 1) && (id.ring() == 1);

  if (me1a && zplus) {
    iraw = 49 - iraw;
  }  // 1-48 -> 48-1
  if (me1b && !zplus) {
    iraw = 65 - iraw;
  }  // 1-64 -> 64-1

  return iraw;
}

int CSCChannelMapperPostls1::geomStripChannel(const CSCDetId &id, int iraw) const {
  // Translate a raw strip channel in range 1-80, iraw,  into
  // corresponding geometry-oriented channel in which increasing
  // channel number <-> strip number increasing with +ve local x.

  int igeo = iraw;

  bool zplus = (id.endcap() == 1);
  bool me1a = (id.station() == 1) && (id.ring() == 4);
  bool me1b = (id.station() == 1) && (id.ring() == 1);

  if (me1a && zplus) {
    igeo = 49 - igeo;
  }  // 1-48 -> 48-1
  if (me1b && !zplus) {
    igeo = 65 - igeo;
  }  // 1-64 -> 64-1

  return igeo;
}

int CSCChannelMapperPostls1::channelFromStrip(const CSCDetId &id, int strip) const {
  // This just returns the electronics channel label to which a given strip is
  // connected In all chambers (including upgraded ME1A) this is just a direct
  // 1-1 correspondence.
  int ichan = strip;
  return ichan;
}

CSCDetId CSCChannelMapperPostls1::rawCSCDetId(const CSCDetId &id) const {
  // Return the effective online CSCDetId for given offline CSCDetId
  // That means the same one (for upgraded ME1A)
  CSCDetId idraw(id);
  return idraw;
}