cb9b397985
LatLngBounds southwest and northeast coordinate points were inverted, so they could be extended via LatLngBounds::extend(). However, this looks confusing and error-prone. A static LatLngBounds::getExtendable() is added to address cases when we want to extend LatLngBounds.
106 lines
2.6 KiB
C++
106 lines
2.6 KiB
C++
#ifndef MBGL_UTIL_GEO
|
|
#define MBGL_UTIL_GEO
|
|
|
|
#include <mbgl/util/vec.hpp>
|
|
|
|
#include <cmath>
|
|
|
|
namespace mbgl {
|
|
|
|
class TileID;
|
|
|
|
using PrecisionPoint = vec2<double>;
|
|
|
|
struct LatLng {
|
|
double latitude = 0;
|
|
double longitude = 0;
|
|
|
|
inline LatLng(double lat = 0, double lon = 0)
|
|
: latitude(lat), longitude(lon) {}
|
|
|
|
inline operator bool() const {
|
|
return !(std::isnan(latitude) || std::isnan(longitude));
|
|
}
|
|
|
|
// Constructs a LatLng object with the top left position of the specified tile.
|
|
LatLng(const TileID& id);
|
|
|
|
PrecisionPoint project() const;
|
|
};
|
|
|
|
struct ProjectedMeters {
|
|
double northing = 0;
|
|
double easting = 0;
|
|
|
|
inline ProjectedMeters(double n = 0, double e = 0)
|
|
: northing(n), easting(e) {}
|
|
|
|
inline operator bool() const {
|
|
return !(std::isnan(northing) || std::isnan(easting));
|
|
}
|
|
};
|
|
|
|
struct LatLngBounds {
|
|
LatLng sw = {-90, -180};
|
|
LatLng ne = {90, 180};
|
|
|
|
inline LatLngBounds() {}
|
|
|
|
inline LatLngBounds(const LatLng& sw_, const LatLng& ne_)
|
|
: sw(sw_), ne(ne_) {}
|
|
|
|
static inline LatLngBounds getExtendable() {
|
|
LatLngBounds bounds;
|
|
return { bounds.ne, bounds.sw };
|
|
}
|
|
|
|
inline operator bool() const {
|
|
return sw && ne;
|
|
}
|
|
|
|
// Constructs a LatLngBounds object with the tile's exact boundaries.
|
|
LatLngBounds(const TileID& id);
|
|
|
|
inline void extend(const LatLng& point) {
|
|
if (point.latitude < sw.latitude) sw.latitude = point.latitude;
|
|
if (point.latitude > ne.latitude) ne.latitude = point.latitude;
|
|
if (point.longitude < sw.longitude) sw.longitude = point.longitude;
|
|
if (point.longitude > ne.longitude) ne.longitude = point.longitude;
|
|
}
|
|
|
|
inline void extend(const LatLngBounds& bounds) {
|
|
extend(bounds.sw);
|
|
extend(bounds.ne);
|
|
}
|
|
|
|
inline bool contains(const LatLng& point) const {
|
|
return (point.latitude >= sw.latitude &&
|
|
point.latitude <= ne.latitude &&
|
|
point.longitude >= sw.longitude &&
|
|
point.longitude <= ne.longitude);
|
|
}
|
|
|
|
inline bool intersects(const LatLngBounds area) const {
|
|
return (area.ne.latitude > sw.latitude &&
|
|
area.sw.latitude < ne.latitude &&
|
|
area.ne.longitude > sw.longitude &&
|
|
area.sw.longitude < ne.longitude);
|
|
}
|
|
};
|
|
|
|
struct MetersBounds {
|
|
ProjectedMeters sw;
|
|
ProjectedMeters ne;
|
|
|
|
inline MetersBounds(const ProjectedMeters& sw_, const ProjectedMeters& ne_)
|
|
: sw(sw_), ne(ne_) {}
|
|
|
|
inline operator bool() const {
|
|
return sw && ne;
|
|
}
|
|
};
|
|
|
|
}
|
|
|
|
#endif
|