44 lines
866 B
C
44 lines
866 B
C
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#pragma once
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#ifndef _LOCATION_TOOL_H_
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#define _LOCATION_TOOL_H_
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#include <stddef.h>
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#ifndef PI
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//#define PI 3.14159265358979323846
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#endif // !PI
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#ifndef EARTH_RADIUS
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#define EARTH_RADIUS 6371008.8
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#endif
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typedef struct DoublePair {
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double x;
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double y;
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} DoublePair;
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typedef DoublePair PlaneCoordinate;
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typedef struct LatLng{
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double lat;
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double lon;
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} LatLng_t;
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typedef struct DoublePairList{
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double *x;
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double *y;
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size_t length;
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} DoublePairList;
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typedef struct LocationList{
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double *lat;
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double *lon;
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size_t length;
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} LocationList;
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LatLng ProjPointOfLatLng(LatLng point, LatLng linePointA, LatLng linePointB);
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DoublePair ProjPoint(DoublePair point, DoublePair linePointA, DoublePair linePointB);
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//PlaneCoordinate WGS84_XYZ(const LatLng lla);
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double CalculateDistance(LatLng pointA, LatLng pointB);
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#endif // !_LOCATION_TOOL_H_
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