proj2.c File Reference

GIS Library - Projection support (internal subroutines) More...

#include <grass/gis.h>
#include <grass/glocale.h>

Include dependency graph for proj2.c:

Go to the source code of this file.

Functions
int	G_projection_units (int n)
	Get projection units code (for internal use only) More...
const char *	G_projection_name (int n)
	Get projection name. More...

Detailed Description

GIS Library - Projection support (internal subroutines)

(C) 2001-2011 by the GRASS Development Team

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 proj2.c.

Function Documentation

G_projection_name()

const char* G_projection_name

(

int

n

)

Get projection name.

Parameters

n	projection code

Returns

projection name

NULL on error

Definition at line 55 of file proj2.c.

References _, NULL, PROJECTION_LL, PROJECTION_OTHER, PROJECTION_UTM, and PROJECTION_XY.

Referenced by G_database_projection_name(), Rast__open_old(), and Vect_get_proj_name().

G_projection_units()

int G_projection_units

(

int

n

)

Get projection units code (for internal use only)

Parameters

n	projection code

Supported units (see gis.h):

• U_UNKNOWN (XY)
• U_METERS (UTM)
• U_FEET (SP)
• U_USFEET (a few SP)
• U_DEGREES (LL)

Returns

units code (see gis.h)

U_UNDEFINED if not defined

Definition at line 32 of file proj2.c.

References PROJECTION_LL, PROJECTION_UTM, PROJECTION_XY, U_DEGREES, U_METERS, U_UNDEFINED, and U_UNKNOWN.

Referenced by G_database_unit().