mirror of
https://github.com/SatDump/SatDump
synced 2026-08-13 17:47:30 -04:00
39 lines
1.4 KiB
C++
39 lines
1.4 KiB
C++
|
#include "map.h"
|
||
|
|
#include <math.h>
|
||
|
|
#define _USE_MATH_DEFINES
|
||
|
|
#include "common/utils.h"
|
||
|
|
#include <iostream>
|
||
|
|
#include <fstream>
|
||
|
|
#include <filesystem>
|
||
|
|
|
||
|
|
tileMap::tileMap(std::string url, std::string path)
|
||
|
|
{
|
||
|
|
tileServerURL = url;
|
||
|
|
tileSaveDir = path;
|
||
|
|
}
|
||
|
|
|
||
|
|
std::pair<int, int> tileMap::coorToTile(float lat, float lon, int zoom)
|
||
|
|
{
|
||
|
|
int x, y;
|
||
|
|
int n = std::pow(2, zoom);
|
||
|
|
x = n * ((lon + 180) / 360);
|
||
|
|
y = n * (1 - (log(tan(lat * (M_PI / 180)) + 1 / cos(lat * (M_PI / 180))) / M_PI)) / 2;
|
||
|
|
downloadTile({x, y}, zoom);
|
||
|
|
return {x, y};
|
||
|
|
}
|
||
|
|
|
||
|
|
void tileMap::downloadTile(std::pair<int, int> t1, int zoom){
|
||
|
|
if (!std::filesystem::exists(tileSaveDir + std::to_string(zoom) + "/" + std::to_string(t1.first) + "/" + std::to_string(t1.second) + ".png"))
|
||
|
|
{
|
||
|
|
std::string res;
|
||
|
|
std::string url = "http://tile.openstreetmap.org/" + std::to_string(zoom) + "/" + std::to_string(t1.first) + "/" + std::to_string(t1.second) + ".png";
|
||
|
|
std::cout << url << std::endl;
|
||
|
|
perform_http_request(url, res);
|
||
|
|
//image::Image<uint8_t> img((uint8_t *)&res, 256, 256, 3);
|
||
|
|
//img.save_png("tile.png");
|
||
|
|
std::filesystem::create_directories(tileSaveDir + std::to_string(zoom) + "/" + std::to_string(t1.first) + "/");
|
||
|
|
std::ofstream out(tileSaveDir + std::to_string(zoom) + "/" + std::to_string(t1.first) + "/" + std::to_string(t1.second) + ".png");
|
||
|
|
out << res;
|
||
|
|
out.close();
|
||
|
|
}
|
||
|
|
}
|