AnsweredAssumed Answered

Noisy Natural Neighbours

Question asked by BTLeslie on Jun 16, 2015
Latest reply on Jun 16, 2015 by slynch-esristaff

I get bad results when using the Natural Neighbors tool.  I think it may be a bug in 10.2.


I found an old workspace from 4 years ago that will have been created in arc9.3.


It contains a raster created using the Natural Neighbor tool - it looks good, nice and smooth - as shown below.



However if I re-run the analysis, now in 10.2, from the Results tab using the same data I get all these rogue pixels - as shown below.  I have struggled with this problem for a while and basically stopped using Natural Neighbors but I now think I have proof that it is a software fault and nothing to do with my data or settings.  Does anyone else have this problem or any possible solution that will fix the Natural Neighbors tool?


Although these errors are small, they do produce unwanted and unacceptable hillocks when the raster is converted into a surface.

(images adjusted in photoshop to increase constast)