Alexandria  2.25.0
SDC-CH common library for the Euclid project
GridIndexHelper.h
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2  * Copyright (C) 2012-2021 Euclid Science Ground Segment
3  *
4  * This library is free software; you can redistribute it and/or modify it under
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11  * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
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16  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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18 
25 #ifndef GRIDCONTAINER_GRIDINDEXHELPER_H
26 #define GRIDCONTAINER_GRIDINDEXHELPER_H
27 
28 #include "GridContainer/GridAxis.h"
30 #include <tuple>
31 #include <vector>
32 
33 namespace Euclid {
34 namespace GridContainer {
35 
53 template <typename... AxesTypes>
55 
56 public:
64  explicit GridIndexHelper(const std::tuple<GridAxis<AxesTypes>...>& axes_tuple);
65 
69 
71  virtual ~GridIndexHelper() = default;
72 
82  size_t axisIndex(size_t axis, size_t array_index) const;
83 
91  size_t totalIndex(decltype(std::declval<GridAxis<AxesTypes>>().size())... coords) const;
92 
102  size_t totalIndexChecked(decltype(std::declval<GridAxis<AxesTypes>>().size())... coords) const;
103 
105  template <typename Coord>
106  void checkAllFixedAreZero(const std::map<size_t, size_t>& fixed_indices, Coord coord) const;
107 
109  template <typename Coord, typename... RestCoords>
110  void checkAllFixedAreZero(const std::map<size_t, size_t>& fixed_indices, Coord coord,
111  RestCoords... rest_coords) const;
112 
116 };
117 
127 template <typename... AxesTypes>
129  return GridIndexHelper<AxesTypes...>(axes_tuple);
130 }
131 
132 } // end of namespace GridContainer
133 } // end of namespace Euclid
134 
136 
137 #endif /* GRIDCONTAINER_GRIDINDEXHELPER_H */
Provides information related with an axis of a GridContainer.
Definition: GridAxis.h:49
Helper class for converting multi-dimensional grid coordinates to the index of a long data array and ...
GridIndexHelper(GridIndexHelper< AxesTypes... > &&)=default
Default move constructor and assignment operator.
size_t axisIndex(size_t axis, size_t array_index) const
GridIndexHelper(const std::tuple< GridAxis< AxesTypes >... > &axes_tuple)
std::vector< std::string > m_axes_names
void checkAllFixedAreZero(const std::map< size_t, size_t > &fixed_indices, Coord coord) const
Checks if any of the given coordinates is fixed and not zero.
size_t totalIndex(decltype(std::declval< GridAxis< AxesTypes >>().size())... coords) const
void checkAllFixedAreZero(const std::map< size_t, size_t > &fixed_indices, Coord coord, RestCoords... rest_coords) const
Checks if any of the given coordinates is fixed and not zero.
std::vector< size_t > m_axes_index_factors
virtual ~GridIndexHelper()=default
Default destructor.
GridIndexHelper & operator=(GridIndexHelper< AxesTypes... > &&)=default
size_t totalIndexChecked(decltype(std::declval< GridAxis< AxesTypes >>().size())... coords) const
T declval(T... args)
GridIndexHelper< AxesTypes... > makeGridIndexHelper(const std::tuple< GridAxis< AxesTypes >... > &axes_tuple)