.. _program_listing_file__tmp_ws_src_mapviz_tile_map_include_tile_map_tile_map_view.h:

Program Listing for File tile_map_view.h
========================================

|exhale_lsh| :ref:`Return to documentation for file <file__tmp_ws_src_mapviz_tile_map_include_tile_map_tile_map_view.h>` (``/tmp/ws/src/mapviz/tile_map/include/tile_map/tile_map_view.h``)

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

.. code-block:: cpp

   // *****************************************************************************
   //
   // Copyright (c) 2015, Southwest Research Institute® (SwRI®)
   // All rights reserved.
   //
   // Redistribution and use in source and binary forms, with or without
   // modification, are permitted provided that the following conditions are met:
   //     * Redistributions of source code must retain the above copyright
   //       notice, this list of conditions and the following disclaimer.
   //     * Redistributions in binary form must reproduce the above copyright
   //       notice, this list of conditions and the following disclaimer in the
   //       documentation and/or other materials provided with the distribution.
   //     * Neither the name of Southwest Research Institute® (SwRI®) nor the
   //       names of its contributors may be used to endorse or promote products
   //       derived from this software without specific prior written permission.
   //
   // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
   // AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   // IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   // ARE DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
   // DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
   // (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
   // LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
   // ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
   // SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   //
   // *****************************************************************************
   
   #ifndef TILE_MAP_TILE_MAP_VIEW_H_
   #define TILE_MAP_TILE_MAP_VIEW_H_
   
   #include <string>
   
   #include <tile_map/tile_source.h>
   #include <tile_map/texture_cache.h>
   
   #include <swri_transform_util/transform.h>
   
   #include <rclcpp/logger.hpp>
   
   namespace tile_map
   {
     class TileSource;
   
     struct Tile
     {
     public:
       QString url;
       size_t url_hash;
       int32_t level;
       int32_t subdiv_count;
       double subwidth;
   
       TexturePtr texture;
   
       std::vector<tf2::Vector3> points;
       std::vector<tf2::Vector3> points_t;
     };
   
     class TileMapView
     {
     public:
       explicit TileMapView(rclcpp::Logger logger = rclcpp::get_logger("tile_map::TileMapView"));
   
       bool IsReady();
   
       void ResetCache();
   
       void SetLogger(rclcpp::Logger logger);
   
       void SetTileSource(const std::shared_ptr<TileSource>& tile_source);
   
       void SetTransform(const swri_transform_util::Transform& transform);
   
       void SetView(
         double latitude,
         double longitude,
         double scale,
         int32_t width,
         int32_t height);
   
       void Draw();
   
     private:
       void DrawTiles(std::vector<Tile> &tiles ,int priority);
   
       std::shared_ptr<TileSource> tile_source_;
   
       swri_transform_util::Transform transform_;
   
       int32_t level_;
   
       int64_t center_x_;
       int64_t center_y_;
   
       int64_t size_;
   
       int32_t width_;
       int32_t height_;
   
       std::vector<Tile> tiles_;
       std::vector<Tile> precache_;
   
       TextureCachePtr tile_cache_;
   
       rclcpp::Logger logger_;
   
       void ToLatLon(int32_t level, double x, double y, double& latitude, double& longitude);
   
       void InitializeTile(int32_t level, int64_t x, int64_t y, Tile& tile, int priority);
     };
   }
   
   #endif  // TILE_MAP_TILE_MAP_VIEW_H_