Single Pixel Access
[Geopysical Data 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)

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Function Documentation

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 co-ordinate of the pixel
	y	the (zero-based) Y co-ordinate of the pixel

Returns:

the typed value at the given co-ordinate.

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
	)