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atakrig (version 0.9.8.1)

discretizeRaster: Discretize raster to points.

Description

Discretize raster to points.

Usage

discretizeRaster(x, cellsize, type = "value", psf = "equal", sigma = 2)

Value

a discreteArea object: list(areaValues, discretePoints).

areaValues

values of areas: data.frame(areaId,centx,centy,value), where areaId is polygon id; centx, centy are centroids of polygons.

discretePoints

discretized points of areas: data.frame(areaId,ptx,pty,weight), where ptx, pty are discretized points; by default, weight is equal for all points.

Arguments

x

a SpatRaster object.

cellsize

cell size of discretized grid.

type

"value", "nodata", "all": whether only valid pixels, or only NODATA pixles, or all pixels extracted.

psf

PSF type, "equal", "gau", or user defined PSF matrix (normalized).

sigma

standard deviation for Gaussian PSF.

See Also

discretizePolygon, ataCoKriging