topic Re: Fill in nodata gaps in ArcGIS Pro Questions

Fill in nodata gaps

BobChristensen — Tue, 28 Nov 2017 20:19:11 GMT

Hi,

I have combined two rasters and ended up with some slivers of nodata. I would like to fill those cells in with neighboring values. I have tried this expression in the raster calculator: Con(IsNull("raster"), FocalStatistics("raster", NbrRectangle(5,5, "CELL"), "MEAN"), "raster")

but that results in new values; i assume the mean of the 5,5 window values. Can I modify this expression to replace mean with something that does not result in new values? Just want the most common neighboring value to get assigned to the nodata areas.

Thanks!

Re: Fill in nodata gaps

DanPatterson_Retired — Tue, 28 Nov 2017 20:27:59 GMT

you said it... focal statistics majority...

http://pro.arcgis.com/en/pro-app/tool-reference/spatial-analyst/focal-statistics.htm

Re: Fill in nodata gaps

BobChristensen — Tue, 28 Nov 2017 20:35:50 GMT

Thanks for holding my hand on these questions Dan. I really need to take a class in map algebra.

Is it possible to store these handy expressions somewhere in arctoolbox or something?

Re: Fill in nodata gaps

DanPatterson_Retired — Tue, 28 Nov 2017 20:47:46 GMT

Bookmarks in your browser are handy IF you organize the browser folders by topic... but nothing works better than a real notebook that you can stash random 'should keep this' things. At least you will twig to a '...I have seen this before...'

Re: Fill in nodata gaps

BobChristensen — Tue, 28 Nov 2017 21:03:23 GMT

Another thing that has been recommended is to create a special filter in gmail to store these kinds of tips in. Thanks again Dan.