*
* Copyright (c) 2010-2013 Samsung Electronics Co., Ltd. All rights reserved.
*
- * Contact: Youngae Kang <youngae.kang@samsung.com>, Minjune Kim <sena06.kim@samsung.com>
- * Genie Kim <daejins.kim@samsung.com>
- *
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
#define DEG2RAD(x) ((x) * M_PI / 180)
GType
-location_position_get_type (void)
+location_position_get_type(void)
{
static volatile gsize type_volatile = 0;
- if(g_once_init_enter(&type_volatile)) {
- GType type = g_boxed_type_register_static (
- g_intern_static_string ("LocationPosition"),
- (GBoxedCopyFunc) location_position_copy,
- (GBoxedFreeFunc) location_position_free);
+ if (g_once_init_enter(&type_volatile)) {
+ GType type = g_boxed_type_register_static(
+ g_intern_static_string("LocationPosition"),
+ (GBoxedCopyFunc) location_position_copy,
+ (GBoxedFreeFunc) location_position_free);
g_once_init_leave(&type_volatile, type);
}
return type_volatile;
}
EXPORT_API LocationPosition *
-location_position_new (guint timestamp,
- gdouble latitude,
- gdouble longitude,
- gdouble altitude,
- LocationStatus status)
+location_position_new(guint timestamp, gdouble latitude, gdouble longitude, gdouble altitude, LocationStatus status)
{
if (latitude < -90 || latitude > 90) return NULL;
if (longitude < -180 || longitude > 180) return NULL;
- LocationPosition* position = g_slice_new0(LocationPosition);
+ LocationPosition *position = g_slice_new0(LocationPosition);
+ g_return_val_if_fail(position, NULL);
+
position->timestamp = timestamp;
position->latitude = latitude;
position->longitude = longitude;
}
EXPORT_API void
-location_position_free (LocationPosition* position)
+location_position_free(LocationPosition *position)
{
g_return_if_fail(position);
g_slice_free(LocationPosition, position);
}
EXPORT_API gboolean
-location_position_equal (const LocationPosition *position1, const LocationPosition *position2)
+location_position_equal(const LocationPosition *position1, const LocationPosition *position2)
{
g_return_val_if_fail(position1, FALSE);
g_return_val_if_fail(position2, FALSE);
return FALSE;
}
-EXPORT_API LocationPosition*
-location_position_copy (const LocationPosition *position)
+EXPORT_API LocationPosition *
+location_position_copy(const LocationPosition *position)
{
g_return_val_if_fail(position, NULL);
LocationPosition *new_position = NULL;
- new_position = location_position_new (position->timestamp,
- position->latitude,
- position->longitude,
- position->altitude,
- position->status);
+ new_position = location_position_new(position->timestamp, position->latitude, position->longitude, position->altitude, position->status);
return new_position;
*distance = 0;
- const double a = 6378137.0, b = 6356752.314245, f = 1/298.257223563;
- double delta_lon = DEG2RAD(pos2->longitude-pos1->longitude);
- double u_1 = atan((1-f) * tan(DEG2RAD(pos1->latitude)));
- double u_2 = atan((1-f) * tan(DEG2RAD(pos2->latitude)));
+ const double a = 6378137.0, b = 6356752.314245, f = 1 / 298.257223563;
+ double delta_lon = DEG2RAD(pos2->longitude - pos1->longitude);
+ double u_1 = atan((1 - f) * tan(DEG2RAD(pos1->latitude)));
+ double u_2 = atan((1 - f) * tan(DEG2RAD(pos2->latitude)));
double lambdaP, iter_limit = 100.0;
double lambda = delta_lon;
- double sin_sigma, sin_alpha, cos_sigma, sigma, sq_cos_alpha, cos_2sigma, C;
+ double sin_sigma, sin_alpha, cos_sigma, sigma, sq_cos_alpha, cos_2sigma, C;
double sq_u, cal1, cal2, delta_sigma, cal_dist;
double sin_lambda, cos_lambda;
sin_lambda = sin(lambda);
cos_lambda = cos(lambda);
- sin_sigma = sqrt((cos_u2*sin_lambda)*(cos_u2*sin_lambda) + \
- (cos_u1*sin_u2-sin_u1*cos_u2*cos_lambda) * \
- (cos_u1*sin_u2-sin_u1*cos_u2*cos_lambda));
+ sin_sigma = sqrt((cos_u2 * sin_lambda) * (cos_u2 * sin_lambda) + \
+ (cos_u1 * sin_u2 - sin_u1 * cos_u2 * cos_lambda) * \
+ (cos_u1 * sin_u2 - sin_u1 * cos_u2 * cos_lambda));
- if (sin_sigma ==0)
- return LOCATION_ERROR_NONE; // co-incident points
+ if (sin_sigma == 0)
+ return LOCATION_ERROR_NONE; /* co-incident points */
- cos_sigma = sin_u1*sin_u2 + cos_u1*cos_u2*cos_lambda;
+ cos_sigma = sin_u1 * sin_u2 + cos_u1 * cos_u2 * cos_lambda;
sigma = atan2(sin_sigma, cos_sigma);
sin_alpha = cos_u1 * cos_u2 * sin_lambda / sin_sigma;
- sq_cos_alpha = 1.0 - sin_alpha*sin_alpha;
- cos_2sigma = cos_sigma - 2.0*sin_u1*sin_u2/sq_cos_alpha;
+ sq_cos_alpha = 1.0 - sin_alpha * sin_alpha;
+ cos_2sigma = cos_sigma - 2.0 * sin_u1 * sin_u2 / sq_cos_alpha;
if (isnan(cos_2sigma))
cos_2sigma = 0;
- C = f/16.0*sq_cos_alpha*(4.0+f*(4.0-3.0*sq_cos_alpha));
+ C = f / 16.0 * sq_cos_alpha * (4.0 + f * (4.0 - 3.0 * sq_cos_alpha));
lambdaP = lambda;
- lambda = delta_lon + (1.0-C) * f * sin_alpha * \
- (sigma + C*sin_sigma*(cos_2sigma+C*cos_sigma*(-1.0+2.0*cos_2sigma*cos_2sigma)));
+ lambda = delta_lon + (1.0 - C) * f * sin_alpha * \
+ (sigma + C * sin_sigma * (cos_2sigma + C * cos_sigma * (-1.0 + 2.0 * cos_2sigma * cos_2sigma)));
- } while (abs(lambda-lambdaP) > 1e-12 && --iter_limit>0);
+ } while (abs(lambda - lambdaP) > 1e-12 && --iter_limit > 0);
- if (iter_limit==0) return LOCATION_ERROR_UNKNOWN;
+ if (iter_limit == 0) return LOCATION_ERROR_UNKNOWN;
- sq_u = sq_cos_alpha * (a*a - b*b) / (b*b);
+ sq_u = sq_cos_alpha * (a * a - b * b) / (b * b);
- cal1 = 1.0 + sq_u/16384.0*(4096.0+sq_u*(-768.0+sq_u*(320.0-175.0*sq_u)));
- cal2 = sq_u/1024.0 * (256.0+sq_u*(-128.0+sq_u*(74.0-47.0*sq_u)));
+ cal1 = 1.0 + sq_u / 16384.0 * (4096.0 + sq_u * (-768.0 + sq_u * (320.0 - 175.0 * sq_u)));
+ cal2 = sq_u / 1024.0 * (256.0 + sq_u * (-128.0 + sq_u * (74.0 - 47.0 * sq_u)));
- delta_sigma = cal2*sin_sigma*(cos_2sigma+cal2/4.0*(cos_sigma*(-1.0+2.0*cos_2sigma*cos_2sigma)- \
- cal2/6.0*cos_2sigma*(-3.0+4.0*sin_sigma*sin_sigma)*(-3.0+4.0*cos_2sigma*cos_2sigma)));
- cal_dist = b*cal1*(sigma-delta_sigma);
+ delta_sigma = cal2 * sin_sigma * (cos_2sigma + cal2 / 4.0 * (cos_sigma * (-1.0 + 2.0 * cos_2sigma * cos_2sigma) - \
+ cal2 / 6.0 * cos_2sigma * (-3.0 + 4.0 * sin_sigma * sin_sigma) * (-3.0 + 4.0 * cos_2sigma * cos_2sigma)));
+ cal_dist = b * cal1 * (sigma - delta_sigma);
*distance = (gulong) cal_dist;
*lat = atoi(latitude);
*lon = atoi(longitude);
- if (*d_lat == 'S') {
+ if (*d_lat == 'S')
*lat = *lat * -1;
- }
- if (*d_lon == 'W') {
+
+ if (*d_lon == 'W')
*lon = *lon * -1;
- }
}
projects / platform / core / location / lbs-location.git / blobdiff