text: #ifndef TkCommonModeTopology_h
  #define TkCommonModeTopology_h
  
  #include <vector>
  /**
   * Allows any topology for the Common Mode: 128 strips, 64, 32, 16, 8, ....
   */
  class TkCommonModeTopology {
  public:
    TkCommonModeTopology(int nstrips, int nstripsperset);
  
    /** Set number of strips in an APV = 128 */
    void setNumberOfStrips(int in) { numberStrips = in; }
    /** Set number of strips in each group for which CM is to be found */
    void setNumberOfStripsPerSet(int in) { numberStripsPerSet = in; }
    /** Set number of independent groups of strips in APV for CM */
    void setNumberOfSets(int in) { numberStripsPerSet = numberStrips / in; }
  
    int numberOfStrips() const { return numberStrips; }
    int numberOfStripsPerSet() const { return numberStripsPerSet; }
  
    int numberOfSets() const { return numberStrips / numberStripsPerSet; }
  
    int setOfStrip(int);
  
    std::vector<int>& initialStrips() { return initStrips; }
    std::vector<int>& finalStrips() { return finStrips; }
  
  private:
    int numberStrips;
    int numberStripsPerSet;
    std::vector<int> initStrips;
    std::vector<int> finStrips;
  };
  
  #endif
  