AnsweredAssumed Answered

Natural Neighbor - unexpected results

Question asked by BTLeslie on Aug 21, 2014
Latest reply on Oct 16, 2014 by curtvprice

I'm trying to create a smooth raster gradient between 1 and 0 that I can then use in Raster Calculator.

 

See attached (this is a mockup drawn in photoshop - my actual data is offline)

 

I have input a series of points with value = 1 (red)

and a series with value = 0 (blue)

 

I expect a nice smooth gradient between the points but I actually get a kind of salt and pepper effect (as shown).

 

I have found that the effect is very much reduced (but not totally) by using the default cell size however the default it too large, I need a nice small cell size for my RasterCalculator step.

 

Anyone know what's going on here and how I can completely eliminate these defects?

 

results mockup.jpg

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