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/**
* Navit, a modular navigation system.
* Copyright (C) 2005-2008 Navit Team
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* version 2 as published by the Free Software Foundation.
*
* 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., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#include <string.h>
#include <glib.h>
#include "coord.h"
#include "debug.h"
#include "projection.h"
struct projection_name {
enum projection projection;
char *name;
};
struct projection_name projection_names[]={
{projection_none, ""},
{projection_mg, "mg"},
{projection_garmin, "garmin"},
{projection_utm, "utm"},
{projection_gk, "gk"},
};
enum projection
projection_from_name(const char *name, struct coord *offset)
{
int i;
int zone;
char ns;
for (i=0 ; i < sizeof(projection_names)/sizeof(struct projection_name) ; i++) {
if (! strcmp(projection_names[i].name, name))
return projection_names[i].projection;
}
if (offset) {
if (sscanf(name,"utm%d%c",&zone,&ns) == 2 && zone > 0 && zone <= 60 && (ns == 'n' || ns == 's')) {
offset->x=zone*1000000;
offset->y=(ns == 's' ? -10000000:0);
return projection_utm;
}
}
return projection_none;
}
char *
projection_to_name(enum projection proj, struct coord *offset)
{
int i;
for (i=0 ; i < sizeof(projection_names)/sizeof(struct projection_name) ; i++) {
if (projection_names[i].projection == proj)
return projection_names[i].name;
}
return NULL;
}
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