103 lines
3.1 KiB
C++
103 lines
3.1 KiB
C++
/**
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* @file point.cpp
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* @author Alexander Klein (alex@kleiax.de)
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* @brief
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* @version 0.1
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* @date 2023-09-03
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*
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* @copyright Copyright (c) 2023
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*
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*/
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Point::Point(double lat, double lon, uint32_t horizontalAccuracy, uint32_t creationTime) {
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this->coordinates.lat = lat;
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this->coordinates.lon = lon;
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this->init(horizontalAccuracy, creationTime);
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}
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Point::Point(int32_t lat, int32_t lon, uint32_t horizontalAccuracy, uint32_t creationTime) {
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this->coordinates.lat = lat / 10000000.0;
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this->coordinates.lon = lon / 10000000.0;
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this->init(horizontalAccuracy, creationTime);
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}
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Point::Point(Coordinates coords, uint32_t horizontalAccuracy, uint32_t creationTime) {
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this->coordinates = coords;
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this->init(horizontalAccuracy, creationTime);
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}
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Point::Point(Coordinates coords, bool imported) {
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this->coordinates = coords;
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if (imported)
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this->init(UINT32_MAX, 0);
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else
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this->init(0, 0);
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}
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Point::Point() {
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this->coordinates.lat = 0;
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this->coordinates.lon = 0;
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this->init(0, 0);
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}
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bool Point::operator==(const Point& rhs) const {
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return this->coordinates == rhs.getCoordinates();
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}
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// distance = sqrt(dx * dx + dy * dy)
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// mit distance: Entfernung in km
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// dx = 111.3 * cos(lat) * (lon1 - lon2)
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// lat = (lat1 + lat2) / 2 * 0.01745
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// dy = 111.3 * (lat1 - lat2)
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// lat1, lat2, lon1, lon2: Breite, Länge in Grad
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double Point::distanceTo(const Coordinates& point) const {
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Coordinates begin = this->coordinates;
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Coordinates end = point;
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double lat = (begin.lat + end.lat) / 2 * ROUTE_DEGREE_TO_RADIANT;
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double dy = ROUTE_DISTANCE_BETWEEN_LATITUDE * (begin.lat - end.lat);
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double dx = ROUTE_DISTANCE_BETWEEN_LATITUDE * cos(lat) * (begin.lon - end.lon);
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return sqrt(dx * dx + dy * dy);
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}
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double Point::distanceTo(const Point &point) const {
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return this->distanceTo(point.getCoordinates());
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}
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int16_t Point::courseTo(const Coordinates& point) const {
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Coordinates begin = this->coordinates;
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Coordinates end = point;
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double phi = log( tan(end.lat * ROUTE_DEGREE_TO_RADIANT / 2 + M_PI / 4) / tan(begin.lat * ROUTE_DEGREE_TO_RADIANT / 2 + M_PI / 4) );
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double lon = (begin.lon * ROUTE_DEGREE_TO_RADIANT - end.lon * ROUTE_DEGREE_TO_RADIANT);
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int16_t res = static_cast<int16_t>(atan2(lon, phi) / ROUTE_DEGREE_TO_RADIANT) * -1;
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// if (res < 0)
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// res += 360;
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return res;
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}
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int16_t Point::courseTo(const Point &point) const {
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return this->courseTo(point.getCoordinates());
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}
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void Point::init(uint32_t horizontalAccuracy, uint32_t creationTime) {
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this->creationTime = creationTime;
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if (horizontalAccuracy == UINT32_MAX)
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this->accuracy = Accuracy::imported;
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else if (horizontalAccuracy > 9999)
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this->accuracy = Accuracy::fourDigOfCM;
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else if (horizontalAccuracy > 999)
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this->accuracy = Accuracy::threeDigOfCM;
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else if (horizontalAccuracy > 99)
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this->accuracy = Accuracy::twoDigOfCM;
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else if (horizontalAccuracy > 1)
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this->accuracy = Accuracy::oneDigOfCM;
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else
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this->accuracy = Accuracy::none;
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}
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