distance_functions.hpp

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/* Copyright (c) 2023 Otto Link. Distributed under the terms of the GNU General
   Public License. The full license is in the file LICENSE, distributed with
   this software. */
 
#pragma once
#include <functional>
 
namespace hmap
{
 
enum DistanceFunction : int
{
  CHEBYSHEV, 
  EUCLIDIAN, 
  EUCLISHEV, 
  MANHATTAN, 
};
 
enum DistanceFunctionAxis : int
{
  DFA_X,  
  DFA_Y,  
  DFA_XY, 
};
 
std::function<float(float, float)> get_distance_function(
    DistanceFunction     dist_fct,
    DistanceFunctionAxis dfa = DistanceFunctionAxis::DFA_XY);
 
} // namespace hmap