topic Re: Reverse Clip (donut) With Raster Data in ArcGIS Pro Questions

Reverse Clip (donut) With Raster Data

ParkGIS307 — Mon, 15 Nov 2021 23:29:29 GMT

Hello all,

I have a DEM file I am working with. I want to take a polygon of a water body and remove those elevations from the elevation dataset. What I want to do would be similar to the erase tool but instead of vector data I am working with raster. The DEM file would look something similar to a donut after this. So far I have come up empty-handed as I try to figure this out.

Does anyone know how to do this or know of a work-around?

Thanks,

Re: Reverse Clip (donut) With Raster Data

DanPatterson — Tue, 16 Nov 2021 01:34:12 GMT

convert the polygon to a raster using the same extent, cell size and alignment etc.

You can use the Con tool in arctoolbox to remove the elevations in the water body

Con (Spatial Analyst)—ArcGIS Pro | Documentation

Con("Lake", "Elev", 0) # if you want to set the value to 0

Setting values to NoData with Set Null—ArcGIS Pro | Documentation

SetNull("Lake", "Elev")

Re: Reverse Clip (donut) With Raster Data

JayantaPoddar — Tue, 16 Nov 2021 06:03:20 GMT

You could use Clip function—ArcGIS Pro | Documentation

Clip Type: Inside

Re: Reverse Clip (donut) With Raster Data

ParkGIS307 — Tue, 16 Nov 2021 15:53:33 GMT

Where are you using the clip type options for inside or outside? This is the raster clip function but I do not see that option for outside/inside.

Re: Reverse Clip (donut) With Raster Data

JayantaPoddar — Tue, 16 Nov 2021 16:17:15 GMT

Please ensure you are using Clip function (not Clip Geoprocessing tool).

Re: Reverse Clip (donut) With Raster Data

ParkGIS307 — Tue, 16 Nov 2021 17:22:38 GMT

That worked great. Thank you.