src/maputils.h

/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 4; tab-width: 4 -*- */
/*
 * viking -- GPS Data and Topo Analyzer, Explorer, and Manager
 *
 * Copyright (C) 2013-2014, Rob Norris <rw_norris@hotmail.com>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 */
#ifndef _MAP_UTILS_H
#define _MAP_UTILS_H

#include <glib.h>
#include "mapcoord.h"
#include "vikcoord.h"

G_BEGIN_DECLS

/* 1 << (x) is like a 2**(x) */
#define VIK_GZ(x) ((1<<(x)))
// Not sure what GZ stands for probably Google Zoom

gint map_utils_mpp_to_scale ( gdouble mpp );

guint8 map_utils_mpp_to_zoom_level ( gdouble mpp );

gboolean map_utils_vikcoord_to_iTMS ( const VikCoord *src, gdouble xzoom, gdouble yzoom, MapCoord *dest );

void map_utils_iTMS_to_center_vikcoord ( const MapCoord *src, VikCoord *dest );

void map_utils_iTMS_to_vikcoord ( const MapCoord *src, VikCoord *dest );

G_BEGIN_DECLS

#endif
Commit	Line	Data
	1	/* -- Mode: C; indent-tabs-mode: t; c-basic-offset: 4; tab-width: 4 -- */
	2	/*
	3	* viking -- GPS Data and Topo Analyzer, Explorer, and Manager
	4	*
	5	* Copyright (C) 2013-2014, Rob Norris <rw_norris@hotmail.com>
	6	*
	7	* This program is free software; you can redistribute it and/or modify
	8	* it under the terms of the GNU General Public License as published by
	9	* the Free Software Foundation; either version 2 of the License, or
	10	* (at your option) any later version.
	11	*
	12	* This program is distributed in the hope that it will be useful,
	13	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	14	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	15	* GNU General Public License for more details.
	16	*
	17	* You should have received a copy of the GNU General Public License
	18	* along with this program; if not, write to the Free Software
	19	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
	20	*
	21	*/
	22	#ifndef _MAP_UTILS_H
	23	#define _MAP_UTILS_H
	24
	25	#include <glib.h>
	26	#include "mapcoord.h"
	27	#include "vikcoord.h"
	28
	29	G_BEGIN_DECLS
	30
	31	/* 1 << (x) is like a 2*(x) /
	32	#define VIK_GZ(x) ((1<<(x)))
	33	// Not sure what GZ stands for probably Google Zoom
	34
	35	gint map_utils_mpp_to_scale ( gdouble mpp );
	36
	37	guint8 map_utils_mpp_to_zoom_level ( gdouble mpp );
	38
	39	gboolean map_utils_vikcoord_to_iTMS ( const VikCoord src, gdouble xzoom, gdouble yzoom, MapCoord dest );
	40
	41	void map_utils_iTMS_to_center_vikcoord ( const MapCoord src, VikCoord dest );
	42
	43	void map_utils_iTMS_to_vikcoord ( const MapCoord src, VikCoord dest );
	44
	45	G_BEGIN_DECLS
	46
	47	#endif