cell_coordinate.h

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/**
 * @file cell_coordinate.h
 * @author William Graham (ccaegra@ucl.ac.uk)
 * @brief Container for {ijk} or {IJK} grouped variables
 */
#pragma once
 
#include <spdlog/spdlog.h>
 
#include <algorithm>
 
 
/**
 * @brief A structure for holding three values, which typically pertain to the
 * same quantity but for each of the axial directions.
 *
 * Effectively stores the 3-vector (i,j,k). This is typically used to represent
 * Yee cell indices, or 3D-array dimensions, or the maximum number of Yee cells
 * in each coordinate direction, for example.
 */
struct ijk {
  int i = 0,    //!< Value in the i/x direction
          j = 0,//!< Value in the j/y direction
          k = 0;//!< Value in the k/z direction
 
  /** @brief Return the maximum of i,j,k */
  int max() const { return std::max(std::max(i, j), k); }
 
  /** @brief Print the (i,j,k) values */
  void print() const { spdlog::info("ijk: ({},{},{})", i, j, k); }
 
  ijk &operator+=(int n) {
    this->i += n;
    this->j += n;
    this->k += n;
    return *this;
  }
};
struct ijk {…};
 
/* Synonyms for code readability */
 
typedef ijk CellCoordinate;//!< Index-coordinates (i,j,k) of a Yee cell
typedef ijk IJKDimensions; //!< Holds array dimensions (I_tot, J_tot, K_tot)