source: hvcontrol/src/HVCalib.cc@ 111

/************************************************************************* \

  Name:         HVCalib.cc

  Created by:   Luisa Sabrina Stark Schneebeli, April 2009
                sabrina.stark@phys.ethz.ch

  Contents:     Class reading the calibration table for DAC to HV values

\*************************************************************************/


#include <stdio.h>
#include <iostream>
#include <fstream>
#include <math.h>

#include "HVCalib.h"

using namespace std;


HVCalib::HVCalib(HVConfig* hvConfig) {

  char calibfile[80], dLine[6000];
  int idac, idacOld, istep, ihv1000, ihvOld;
  bool first = true;
  float hv1000,dac;
  double intpart;

  Config = hvConfig;
  
  iDACMin = Config->DACMin;
  fHVCalibSlope = Config->fHVCalibSlope;
  NDACValues = Config->DACMax - Config->DACMin;
  NHVValues = 10*NDACValues;

  HVArray = new double*** [Config->NumHVBoards];
  DACArray = new int*** [Config->NumHVBoards];
  for(int i=0; i<Config->NumHVBoards; i++) {
    HVArray[i] = new double** [NUM_CHAINS];
    DACArray[i] = new int** [NUM_CHAINS];
    for(int j=0; j<NUM_CHAINS; j++) {
      HVArray[i][j] = new double* [NUM_CHANNELS];
      DACArray[i][j] = new int* [NUM_CHANNELS];
      for(int k=0; k<NUM_CHANNELS; k++) {
        HVArray[i][j][k] = new double [NDACValues];
        DACArray[i][j][k] = new int [NHVValues];
      }
    }
  }

  for(int i=0; i<Config->NumHVBoards; i++){
    for(int j=0; j<NUM_CHAINS; j++){
      sprintf(calibfile,"Calib/%s_%c%d.txt",hvConfig->fUSBDevice[i],65+j,1); 
      ifstream fin(calibfile);

      while(fin){
        fin >> dac;
        idacOld = 0;
        if ((int) dac >= Config->DACMin) {
          if (first){
            iDACMin = (int) dac;
            first = false;
          }
          idac = (int)dac - iDACMin;
          istep = idac - idacOld;
          for(int k=0; k<NUM_CHANNELS; k++){
            if (idac>=NDACValues) break;

            fin>>HVArray[i][j][k][idac];

            for (int l=1; l<istep;l++){
              HVArray[i][j][k][idac-istep+l] = HVArray[i][j][k][idac-istep] + l*(HVArray[i][j][k][idac]-HVArray[i][j][k][idac-istep])/istep;
              //              printf(" HVArray: %d  %f \n", idac-istep+l, HVArray[i][j][0][idac-istep+l]);
              //              if (idac > 11240-iDACMin)
              //                return;
            }
          }
          idacOld = idac;
        }
        else{
          fin.getline(dLine,6000,'\n'); // Skip low voltage region
        }
      }
    }
  }

  for(int i=0; i<Config->NumHVBoards; i++){
    for(int j=0; j<NUM_CHAINS; j++){
      for(int k=0; k<NUM_CHANNELS; k++){
        ihvOld = 0;
        first = true;
        for (int l=0; l<NDACValues; l++){
          if (l == 0){
            ihvOld = 0;
            DACArray[i][j][k][0] = iDACMin;         
            //      printf("first :  DACArray[i][j][k][0] = %d, ihvOld = %d, i %d, j %d, k %d\n",  DACArray[i][j][k][0], ihvOld,i,j,k);
          }
          hv1000 = (HVArray[i][j][k][l] - HVArray[i][j][k][0]) * 1000;
          if (modf(hv1000,&intpart) >= 0.5){
            ihv1000 = (int)((hv1000>=0)?ceil(hv1000):floor(hv1000));
          }
          else ihv1000 = (int)((hv1000<0)?ceil(hv1000):floor(hv1000));

          if (ihv1000 <= ihvOld) continue;
          else if (ihv1000 > ihvOld){
            for (int m=0; m<(ihv1000-ihvOld); m++){
              DACArray[i][j][k][ihvOld+m] = l+iDACMin;
              //printf("HV = %d, HVArr = %f, DACArray = %d, m = %d. \n",ihvOld+m,HVArray[i][j][k][l],DACArray[i][j][k][ihvOld+m],m);
            //      printf("DACArray[i][j][k][0] = %d\n",  DACArray[i][j][k][0]);           
            }
            ihvOld = ihv1000;
          }
        }       
      }
    }
  }
}

/////////////////////////////////////////////////////////////////////////

HVCalib::~HVCalib() {

  for(int i=0; i<Config->NumHVBoards; i++) {
    for(int j=0; j<NUM_CHAINS; j++) {
      for(int k=0; k<NUM_CHANNELS; k++) {
        delete[] HVArray[i][j][k];
        delete[] DACArray[i][j][k];
      }
      delete[] HVArray[i][j];
      delete[] DACArray[i][j];
    }
    delete[] HVArray[i];
    delete[] DACArray[i];
  }
  delete[] HVArray;
  delete[] DACArray;
}

/////////////////////////////////////////////////////////////////////////

double HVCalib::DACToHV(int dac, int board, int chain, int channel) {
  if (dac < iDACMin){
    return HVArray[board][chain][channel][0] + (dac - iDACMin)*fHVCalibSlope;
  }
  else
    return HVArray[board][chain][channel][dac-iDACMin];

}
/////////////////////////////////////////////////////////////////////////

int HVCalib::HVToDAC(double hv, int board, int chain, int channel) {
  if (hv < HVArray[board][chain][channel][0]){
        return iDACMin + (int)((hv - HVArray[board][chain][channel][0])/fHVCalibSlope);
  }
  else{
    int ihv = 0;
    double intpart;
    double hv1000 = (hv-HVArray[board][chain][channel][0])*1000.;
    if (modf(hv1000,&intpart) >= 0.5){
      ihv = (int) (hv1000>=0 ? ceil(hv1000) : floor(hv1000));
    }
    else {
      ihv = (int) (hv1000<0 ? ceil(hv1000) : floor(hv1000));
    }
    if (ihv >= NHVValues) ihv = NHVValues;
    return DACArray[board][chain][channel][ihv];
  }
}