Single Pixel Access

Functions
uint	epr_get_pixel_as_uint (const EPR_SRaster *raster, int x, int y)
	This group of functions is for getting the values of the elements of a raster (i.e.
int	epr_get_pixel_as_int (const EPR_SRaster *raster, int x, int y)
float	epr_get_pixel_as_float (const EPR_SRaster *raster, int x, int y)
double	epr_get_pixel_as_double (const EPR_SRaster *raster, int x, int y)

Detailed Description

Function Documentation

epr_get_pixel_as_uint()

uint epr_get_pixel_as_uint	(	const EPR_SRaster *	raster,
		int	x,
		int	y )

This group of functions is for getting the values of the elements of a raster (i.e.

pixel) in a type-safe way.

Parameters

raster	the raster which contains the pixel, must not be NULL
x	the (zero-based) X coordinate of the pixel
y	the (zero-based) Y coordinate of the pixel

Returns

the typed value at the given coordinate.

epr_get_pixel_as_int()

int epr_get_pixel_as_int	(	const EPR_SRaster *	raster,
		int	x,
		int	y )

epr_get_pixel_as_float()

float epr_get_pixel_as_float	(	const EPR_SRaster *	raster,
		int	x,
		int	y )

epr_get_pixel_as_double()

double epr_get_pixel_as_double	(	const EPR_SRaster *	raster,
		int	x,
		int	y )