Visibility - Negative values?

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09-17-2014 01:24 PM
KyleGallagher
New Contributor III

I am expecting the output of my visibility analysis to be 0 or a positive number, but I am also getting negative values.  Do negative values represent not visible?

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DanPatterson_Retired
MVP Esteemed Contributor

In visibility did you create the AGL raster? I don't see any reference to negative values, so it is really possible or something else, at which point I would check to see what type of file you are using (Grids best), that the input data are projected and the X,Y and Z have the same units (ie meters) and a variety of other things

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