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 *   Author: @author Lorenz Meier <lm@inf.ethz.ch>
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/**
 * @file vehicle_local_position.h
 * Definition of the local fused NED position uORB topic.
 */

#ifndef TOPIC_VEHICLE_LOCAL_POSITION_H_
#define TOPIC_VEHICLE_LOCAL_POSITION_H_

#include <stdint.h>
#include <stdbool.h>
#include "../uORB.h"

/**
 * @addtogroup topics
 * @{
 */

/**
 * Fused local position in NED.
 */
struct vehicle_local_position_s
{
	uint64_t timestamp;			/**< time of this estimate, in microseconds since system start */
	bool valid;				/**< true if position satisfies validity criteria of estimator */

	float x;				/**< X positin in meters in NED earth-fixed frame */
	float y;				/**< X positin in meters in NED earth-fixed frame */
	float z;				/**< Z positin in meters in NED earth-fixed frame (negative altitude) */
	float absolute_alt;			/**< Altitude as defined by pressure / GPS, 			LOGME */
	float vx; 				/**< Ground X Speed (Latitude), m/s in NED				LOGME */
	float vy;				/**< Ground Y Speed (Longitude), m/s in NED				LOGME */
	float vz;				/**< Ground Z Speed (Altitude), m/s	in NED				LOGME */
	float hdg; 				/**< Compass heading in radians -PI..+PI.					  */

	// TODO Add covariances here

	/* Reference position in GPS / WGS84 frame */
	uint64_t home_timestamp;/**< Time when home position was set						  */
	int32_t home_lat;		/**< Latitude in 1E7 degrees							LOGME */
	int32_t home_lon;		/**< Longitude in 1E7 degrees							LOGME */
	float home_alt;			/**< Altitude in meters									LOGME */
	float home_hdg; 		/**< Compass heading in radians -PI..+PI.					  */

};

/**
 * @}
 */

/* register this as object request broker structure */
ORB_DECLARE(vehicle_local_position);

#endif