Program Listing for File tile.hpp

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/* Copyright 2018-2019 TomTom N.V., 2014 Gareth Cross

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License. */
#pragma once

#include <cmath>
#include <stdexcept>
#include <string>
#include <tuple>
#include <Ogre.h>

#include <QMetaType>
#include <sensor_msgs/msg/nav_sat_fix.hpp>

#include <proj.h>

namespace rviz_satellite
{

struct TileCoordinate
{
  int x, y, z;

  bool operator==(const TileCoordinate & other) const
  {
    return std::tie(x, y, z) == std::tie(other.x, other.y, other.z);
  }

  bool operator!=(const TileCoordinate & other) const
  {
    return std::tie(x, y, z) != std::tie(other.x, other.y, other.z);
  }

  bool operator<(const TileCoordinate & other) const
  {
    return std::tie(x, y, z) < std::tie(other.x, other.y, other.z);
  }
};

struct TileId
{
  std::string server_url;
  TileCoordinate coord;

  bool operator==(const TileId & other) const
  {
    return std::tie(coord, server_url) == std::tie(other.coord, other.server_url);
  }

  bool operator<(const TileId & other) const
  {
    return std::tie(coord, server_url) < std::tie(other.coord, other.server_url);
  }
};

struct TileMapInformation
{
  int zoom;

  // local map information
  bool local_map;
  double meter_per_pixel_z0;
  double origin_x;
  double origin_y;
  std::string origin_crs;

  // local map projection
  PJ_CONTEXT * context = proj_context_create();
  PJ * transformation = nullptr;
};

static constexpr int MAX_BLOCKS = 8;

static constexpr int MAX_ZOOM = 22;

double zoomSize(double lat, TileMapInformation tile_map_info);

std::string tileURL(const TileId & tile_id);

TileCoordinate fromWGS(const sensor_msgs::msg::NavSatFix &, TileMapInformation tile_map_info);

Ogre::Vector2 tileOffset(const sensor_msgs::msg::NavSatFix &, TileMapInformation tile_map_info);

}  // namespace rviz_satellite

std::ostream & operator<<(std::ostream & os, const rviz_satellite::TileId & tile_id);

// Make type available for QVariant, which is required to use it as network request data
Q_DECLARE_METATYPE(rviz_satellite::TileId)