xatan.c File Reference

#include <stdlib.h>
#include <math.h>
#include <grass/gis.h>
#include <grass/raster.h>
#include <grass/calc.h>

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Macros
#define	RADIANS_TO_DEGREES   (180.0 / M_PI)

Functions
int	f_atan (int argc, const int *argt, void **args)

Macro Definition Documentation

RADIANS_TO_DEGREES

#define RADIANS_TO_DEGREES   (180.0 / M_PI)

Definition at line 19 of file xatan.c.

Referenced by f_atan().

Function Documentation

f_atan()

int f_atan	(	int	argc,
		const int *	argt,
		void **	args
	)

Definition at line 21 of file xatan.c.

References columns, DCELL_TYPE, E_ARG_HI, E_ARG_LO, E_ARG_TYPE, E_RES_TYPE, floating_point_exception, IS_NULL_D, NULL, RADIANS_TO_DEGREES, and SET_NULL_D.