67 lines
1.8 KiB
C++
67 lines
1.8 KiB
C++
#ifndef MBGL_UTIL_GEO
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#define MBGL_UTIL_GEO
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namespace mbgl {
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class TileID;
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struct LatLng {
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double latitude = 0;
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double longitude = 0;
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inline LatLng(double lat = 0, double lon = 0)
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: latitude(lat), longitude(lon) {}
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// Constructs a LatLng object with the top left position of the specified tile.
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LatLng(const TileID& id);
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};
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struct ProjectedMeters {
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double northing = 0;
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double easting = 0;
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inline ProjectedMeters(double n = 0, double e = 0)
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: northing(n), easting(e) {}
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};
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struct LatLngBounds {
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LatLng sw = {90, 180};
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LatLng ne = {-90, -180};
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inline LatLngBounds(LatLng sw_ = {90, 180}, LatLng ne_ = {-90, -180})
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: sw(sw_), ne(ne_) {}
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// Constructs a LatLngBounds object with the tile's exact boundaries.
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LatLngBounds(const TileID& id);
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inline void extend(const LatLng& point) {
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if (point.latitude < sw.latitude) sw.latitude = point.latitude;
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if (point.latitude > ne.latitude) ne.latitude = point.latitude;
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if (point.longitude < sw.longitude) sw.longitude = point.longitude;
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if (point.longitude > ne.longitude) ne.longitude = point.longitude;
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}
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inline void extend(const LatLngBounds& bounds) {
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extend(bounds.sw);
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extend(bounds.ne);
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}
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inline bool contains(const LatLng& point) const {
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return (point.latitude >= sw.latitude &&
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point.latitude <= ne.latitude &&
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point.longitude >= sw.longitude &&
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point.longitude <= ne.longitude);
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}
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inline bool intersects(const LatLngBounds area) const {
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return (area.ne.latitude > sw.latitude &&
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area.sw.latitude < ne.latitude &&
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area.ne.longitude > sw.longitude &&
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area.sw.longitude < ne.longitude);
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}
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};
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}
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#endif
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