[R-sig-Geo] SpatialPixels - other implementations?
mdsumner at utas.edu.au
Fri Jun 8 00:56:54 CEST 2007
Roger Bivand wrote:
> On Tue, 5 Jun 2007, Michael Sumner wrote:
>> I'm interested in the origin of the idea behind sp's SpatialPixels.
>> What other software/s implement this concept, of storing a sparse grid
>> of pixels?
> Directly from the Cells object in Terralib:
> (they had lots of images with clouds, that is NA, and found the direct
> database record a better representation than repeated lookups on raster
> cells with content).
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