.. _program_listing_file_src_navtk_geospatial_providers_SpatialMapDataProvider.hpp:

Program Listing for File SpatialMapDataProvider.hpp
===================================================

|exhale_lsh| :ref:`Return to documentation for file <file_src_navtk_geospatial_providers_SpatialMapDataProvider.hpp>` (``src/navtk/geospatial/providers/SpatialMapDataProvider.hpp``)

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

.. code-block:: cpp

   #pragma once
   
   #include <memory>
   #include <utility>
   #include <vector>
   
   #include <navtk/geospatial/sources/SpatialMapDataSource.hpp>
   #include <navtk/not_null.hpp>
   
   namespace navtk {
   namespace geospatial {
   
   class SpatialMapDataProvider {
   public:
       virtual ~SpatialMapDataProvider() = default;
   
       SpatialMapDataProvider(not_null<std::shared_ptr<SpatialMapDataSource>> src);
   
       SpatialMapDataProvider(std::vector<not_null<std::shared_ptr<SpatialMapDataSource>>> srcs = {});
   
       void add_source(not_null<std::shared_ptr<SpatialMapDataSource>> src);
   
       virtual std::pair<bool, double> lookup_datum(double latitude, double longitude) const = 0;
   
   protected:
       std::vector<not_null<std::shared_ptr<SpatialMapDataSource>>> sources;
   };
   }  // namespace geospatial
   }  // namespace navtk