zone.c File Reference

GIS Library - Cartographic zone functions. More...

#include <grass/gis.h>

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Functions
int	G_zone (void)
	Query cartographic zone.

Detailed Description

GIS Library - Cartographic zone functions.

This program is free software under the GNU General Public License (>=v2). Read the file COPYING that comes with GRASS for details.

Author

Original author CERL

Definition in file zone.c.

Function Documentation

G_zone()

int G_zone

(

void

)

Query cartographic zone.

This routine returns the zone for the active region. The meaning for the zone depends on the projection. For example, zone 18 for projection type 1 would be UTM zone 18.

Returns

int cartographic zone

Definition at line 23 of file zone.c.

References G_get_set_window(), and Cell_head::zone.

Referenced by Rast__check_for_auto_masking(), Vect__open_old(), and Vect_get_zone().