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A solution to this is discussed on the ESRI forum here: Every planar surface has a simple formula, Jesse, in the form (something)*x + (something else)*y + (constant). In the Raster Calculator, x is $$XMap and y is $$YMap. The trick is figuring out the coefficients. Often you want to specify a plane in terms of its slope (s), aspect (a), ...


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Walter: the HUD data uses ID's for the blockgroups (BLKGRP) with single quotes around them... the TIGER blockgroup ID's (GEOID) do not have single quotes: I would say that you should create a new column using Excel / Open Office to truncate the first and last values from the field into the new column...but I can't remember how to do that right now!!! ...


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There are two things in that zip file: the "raw" raster data koppen_ics a layer file The layer file is just a pointer to the original data, with additional information about symbology (in this case, providing short text names for the various climate zones). Layer files are useful for saving a set of layers and symbology, but they can't be used if the ...



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