.. _program_listing_file_src_navtk_geospatial_sources_SpatialMapDataSource.hpp:

Program Listing for File SpatialMapDataSource.hpp
=================================================

|exhale_lsh| :ref:`Return to documentation for file <file_src_navtk_geospatial_sources_SpatialMapDataSource.hpp>` (``src/navtk/geospatial/sources/SpatialMapDataSource.hpp``)

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

.. code-block:: cpp

   #pragma once
   
   #include <string>
   #include <utility>
   
   namespace navtk {
   namespace geospatial {
   
   class SpatialMapDataSource {
   public:
       virtual ~SpatialMapDataSource() = default;
   
       virtual std::pair<bool, double> lookup_datum(double latitude, double longitude) const = 0;
   };
   }  // namespace geospatial
   }  // namespace navtk