mirror of
https://github.com/gnss-sdr/gnss-sdr
synced 2024-09-28 15:08:51 +00:00
242 lines
7.2 KiB
C++
242 lines
7.2 KiB
C++
/*!
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* \file geojson_printer.cc
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* \brief Implementation of a class that prints PVT solutions in GeoJSON format
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* \author Carles Fernandez-Prades, 2015. cfernandez(at)cttc.es
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*
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*
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* -----------------------------------------------------------------------------
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*
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* Copyright (C) 2010-2020 (see AUTHORS file for a list of contributors)
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*
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* GNSS-SDR is a software defined Global Navigation
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* Satellite Systems receiver
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*
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* This file is part of GNSS-SDR.
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*
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* SPDX-License-Identifier: GPL-3.0-or-later
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*
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* -----------------------------------------------------------------------------
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*/
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#include "geojson_printer.h"
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#include "pvt_solution.h"
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#include <boost/date_time/posix_time/posix_time.hpp>
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#include <glog/logging.h>
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#include <ctime> // for tm
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#include <exception> // for exception
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#include <iomanip> // for operator<<
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#include <iostream> // for cout, cerr
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#include <sstream> // for stringstream
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// clang-format off
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#if HAS_STD_FILESYSTEM
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#include <system_error>
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namespace errorlib = std;
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#if HAS_STD_FILESYSTEM_EXPERIMENTAL
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#include <experimental/filesystem>
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namespace fs = std::experimental::filesystem;
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#else
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#include <filesystem>
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namespace fs = std::filesystem;
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#endif
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#else
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#include <boost/filesystem/operations.hpp> // for create_directories, exists
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#include <boost/filesystem/path.hpp> // for path, operator<<
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#include <boost/filesystem/path_traits.hpp> // for filesystem
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#include <boost/system/error_code.hpp> // for error_code
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namespace fs = boost::filesystem;
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namespace errorlib = boost::system;
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#endif
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// clang-format on
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GeoJSON_Printer::GeoJSON_Printer(const std::string& base_path)
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{
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first_pos = true;
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geojson_base_path = base_path;
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fs::path full_path(fs::current_path());
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const fs::path p(geojson_base_path);
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if (!fs::exists(p))
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{
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std::string new_folder;
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for (auto& folder : fs::path(geojson_base_path))
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{
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new_folder += folder.string();
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errorlib::error_code ec;
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if (!fs::exists(new_folder))
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{
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if (!fs::create_directory(new_folder, ec))
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{
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std::cout << "Could not create the " << new_folder << " folder.\n";
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geojson_base_path = full_path.string();
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}
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}
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new_folder += fs::path::preferred_separator;
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}
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}
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else
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{
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geojson_base_path = p.string();
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}
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if (geojson_base_path != ".")
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{
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std::cout << "GeoJSON files will be stored at " << geojson_base_path << '\n';
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}
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geojson_base_path = geojson_base_path + fs::path::preferred_separator;
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}
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GeoJSON_Printer::~GeoJSON_Printer()
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{
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DLOG(INFO) << "GeoJSON printer destructor called.";
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try
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{
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GeoJSON_Printer::close_file();
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}
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catch (const std::exception& e)
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{
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std::cerr << e.what() << '\n';
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}
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}
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bool GeoJSON_Printer::set_headers(const std::string& filename, bool time_tag_name)
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{
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const boost::posix_time::ptime pt = boost::posix_time::second_clock::local_time();
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const tm timeinfo = boost::posix_time::to_tm(pt);
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if (time_tag_name)
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{
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std::stringstream strm0;
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const int year = timeinfo.tm_year - 100;
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strm0 << year;
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const int month = timeinfo.tm_mon + 1;
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if (month < 10)
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{
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strm0 << "0";
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}
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strm0 << month;
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const int day = timeinfo.tm_mday;
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if (day < 10)
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{
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strm0 << "0";
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}
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strm0 << day << "_";
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const int hour = timeinfo.tm_hour;
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if (hour < 10)
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{
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strm0 << "0";
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}
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strm0 << hour;
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const int min = timeinfo.tm_min;
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if (min < 10)
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{
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strm0 << "0";
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}
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strm0 << min;
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const int sec = timeinfo.tm_sec;
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if (sec < 10)
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{
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strm0 << "0";
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}
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strm0 << sec;
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filename_ = filename + "_" + strm0.str() + ".geojson";
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}
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else
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{
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filename_ = filename + ".geojson";
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}
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filename_ = geojson_base_path + filename_;
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geojson_file.open(filename_.c_str());
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first_pos = true;
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if (geojson_file.is_open())
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{
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DLOG(INFO) << "GeoJSON printer writing on " << filename.c_str();
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// Set iostream numeric format and precision
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geojson_file.setf(geojson_file.std::ofstream::fixed, geojson_file.std::ofstream::floatfield);
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geojson_file << std::setprecision(14);
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// Writing the header
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geojson_file << "{\n";
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geojson_file << R"( "type": "Feature",)" << '\n';
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geojson_file << " \"properties\": {\n";
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geojson_file << R"( "name": "Locations generated by GNSS-SDR" )" << '\n';
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geojson_file << " },\n";
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geojson_file << " \"geometry\": {\n";
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geojson_file << R"( "type": "MultiPoint",)" << '\n';
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geojson_file << " \"coordinates\": [\n";
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return true;
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}
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std::cout << "File " << filename_ << " cannot be saved. Wrong permissions?\n";
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return false;
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}
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bool GeoJSON_Printer::print_position(const Pvt_Solution* const position, bool print_average_values)
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{
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double latitude;
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double longitude;
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double height;
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if (print_average_values == false)
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{
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latitude = position->get_latitude();
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longitude = position->get_longitude();
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height = position->get_height();
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}
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else
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{
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latitude = position->get_avg_latitude();
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longitude = position->get_avg_longitude();
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height = position->get_avg_height();
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}
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if (geojson_file.is_open())
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{
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if (first_pos == true)
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{
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geojson_file << " [" << longitude << ", " << latitude << ", " << height << "]";
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first_pos = false;
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}
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else
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{
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geojson_file << ",\n";
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geojson_file << " [" << longitude << ", " << latitude << ", " << height << "]";
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}
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return true;
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}
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return false;
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}
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bool GeoJSON_Printer::close_file()
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{
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if (geojson_file.is_open())
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{
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geojson_file << '\n';
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geojson_file << " ]\n";
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geojson_file << " }\n";
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geojson_file << "}\n";
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geojson_file.close();
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// if nothing is written, erase the file
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if (first_pos == true)
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{
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errorlib::error_code ec;
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if (!fs::remove(fs::path(filename_), ec))
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{
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LOG(INFO) << "Error deleting temporary file";
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}
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}
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return true;
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}
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return false;
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}
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