.. _program_listing_file__tmp_ws_src_grid_map_grid_map_core_include_grid_map_core_TypeDefs.hpp:

Program Listing for File TypeDefs.hpp
=====================================

|exhale_lsh| :ref:`Return to documentation for file <file__tmp_ws_src_grid_map_grid_map_core_include_grid_map_core_TypeDefs.hpp>` (``/tmp/ws/src/grid_map/grid_map_core/include/grid_map_core/TypeDefs.hpp``)

.. |exhale_lsh| unicode:: U+021B0 .. UPWARDS ARROW WITH TIP LEFTWARDS

.. code-block:: cpp

   /*
    * TypeDefs.hpp
    *
    *  Created on: March 18, 2014
    *      Author: Péter Fankhauser
    *   Institute: ETH Zurich, ANYbotics
    */
   
   #ifndef GRID_MAP_CORE__TYPEDEFS_HPP_
   #define GRID_MAP_CORE__TYPEDEFS_HPP_
   
   // Eigen
   #include <Eigen/Core>
   
   namespace grid_map
   {
   
   typedef Eigen::MatrixXf Matrix;
   typedef Matrix::Scalar DataType;
   typedef Eigen::Vector2d Position;
   typedef Eigen::Vector2d Vector;
   typedef Eigen::Vector3d Position3;
   typedef Eigen::Vector3d Vector3;
   typedef Eigen::Array2i Index;
   typedef Eigen::Array2i Size;
   typedef Eigen::Array2d Length;
   typedef uint64_t Time;
   
   /*
    * Interpolations are ordered in the order
    * of increasing accuracy and computational complexity.
    * INTER_NEAREST - fastest, but least accurate,
    * INTER_CUBIC - slowest, but the most accurate.
    * see:
    * https://en.wikipedia.org/wiki/Bicubic_interpolation
    * https://web.archive.org/web/20051024202307/http://www.geovista.psu.edu/sites/geocomp99/Gc99/082/gc_082.htm
    * for more info. Cubic convolution algorithm is also known as piecewise cubic
    * interpolation and in general does not guarantee continuous
    * first derivatives.
    */
   enum class InterpolationMethods
   {
     INTER_NEAREST,  // nearest neighbor interpolation
     INTER_LINEAR,  // bilinear interpolation
     INTER_CUBIC_CONVOLUTION,  // piecewise bicubic interpolation using convolution algorithm
     INTER_CUBIC  // standard bicubic interpolation
   };
   
   }  // namespace grid_map
   #endif  // GRID_MAP_CORE__TYPEDEFS_HPP_