north 81 core/gps.c double north; north 98 core/gps.c r->north= g->lat_w * EARTH; north 104 core/gps.c p->delta = sqrt (r->north*r->north + r->east*r->east); north 105 core/gps.c p->alpha = arctan2 (r->east, r->north); north 112 core/gps.c r->north= cos(p->alpha) * p->delta;