topic Re: Clip tool will not clip raster layer in Geoprocessing Questions

Clip tool will not clip raster layer

Hope-Hauptman — Sat, 28 Aug 2021 17:46:46 GMT

I am trying to clip a raster layer with a polygon layer using the "clip raster" tool. I've clipped other raster layers with the same polygon layer (study area) but this raster layer will not clip? I am attaching the SSURGO raster to be clipped and the clip area (StudyArea) here. Thank you.

Re: Clip tool will not clip raster layer

DanPatterson — Sat, 28 Aug 2021 02:00:00 GMT

Does that raster have the same coordinate system as the study area polygon?

Do the extents overlap.

(ps, *.lyrx files aren't going to be useful because they reference the data. A screen grab of the layers and the properties of the raster and the polygon would be useful)

Re: Clip tool will not clip raster layer

David_Brooks — Sat, 28 Aug 2021 09:48:35 GMT

What's the raster format? Can you share a map package of the data?

If it's a raster loaded into a File GDB, then try exporting to Tif and clipping that instead. I often have failed raster geoorocesses with rasters in FGDB, and then the GP tool works as a tif.

Re: Clip tool will not clip raster layer

curtvprice — Sat, 28 Aug 2021 17:36:13 GMT

That's a really good suggestion. TIFF is a much better format for processing data, fgdb rasters are a better choice for view only of your final product (in my experience).

Re: Clip tool will not clip raster layer

Hope-Hauptman — Sat, 28 Aug 2021 17:49:09 GMT

Hi - the coordinate systems are not the same (see below). I'm not sure how to change that and which one to pick.

NAD 1983 California (Teale) Albers (Meters)

USA Contiguous Albers Equal Area Conic USGS

Re: Clip tool will not clip raster layer

curtvprice — Sat, 28 Aug 2021 18:02:32 GMT

Use the Project tool (not Define Projection) to convert the polygon layer to the same coordinate system as the soils layer. Then try clipping by the new polygon that has the same CS as the soil raster.

Re: Clip tool will not clip raster layer

Hope-Hauptman — Sat, 28 Aug 2021 19:12:14 GMT

I am changing the coordinate system with Project tool but it has been running for nearly an hour. For the future should I always change the coordinate system of all layers to match one another? I have not been doing this with my projects... If so, which coordinate system do you choose.

Re: Clip tool will not clip raster layer

DanPatterson — Sat, 28 Aug 2021 20:21:08 GMT

What coordinate system do you normally work with?

Project other files to match it, however.... the first layer you add to a map sets the coordinate system for the map all others should "project-on-the-fly" if they have a properly "defined" coordinate system (that is... it is not "unknown" for the layers properties.

If it is taking an inordinate length of time, it may be due to a number of reasons, and you would have to provide information on what the file is that you are projecting and whether it resides on your local computer or on some network elsewhere, etcetera.

Re: Clip tool will not clip raster layer

Hope-Hauptman — Sun, 29 Aug 2021 23:34:41 GMT

I ended up quitting after two hors of letting it run and then tried again overnight. The file is on my local computer and is located in a GBD file. I also have made a tiff copy of the raster to be clipped per suggestion by Brooks_SummitGeo.

I tried attaching the files as a package but they are too large for upload to this. Should I try to put them on GitHub and post a link here? Sorry - I am a relatively new GIS user.

If I understood your last post, when adding new layers, I should make sure the coordinate systems all match? Thank you so much for the help.

Re: Clip tool will not clip raster layer

curtvprice — Sun, 29 Aug 2021 23:40:54 GMT

No I don't think you understood my last post. Often you don't need to change coordinate systems. But especially with raster processing (it has to with the fact that rasters are rectangular grids) you sometimes need to make sure the inputs are in the same coordinate system. This is true with some tools some times.
Your clip polygon is a small dataset and should project right away, seconds not hours. My guess is you have a massive soil raster and you tried to project that which could take days if it is big enough.

Re: Clip tool will not clip raster layer

Hope-Hauptman — Tue, 31 Aug 2021 17:17:57 GMT

I was still not able to do this after changing the coordinate system of the polygon layer and clipping the tiff instead of the GDB version of the raster so I hesitate to accept a solution?

Re: Clip tool will not clip raster layer

curtvprice — Tue, 31 Aug 2021 18:13:38 GMT

Here's another thing to try: the raster is really really big, so something to try is to clip out just the area of the soil map you are interested in with right click the raster layer > Export. The clip tool may be more friendly with a smaller raster.

Beyond that if you have no local resources to help you, you pay for your Esri software license for a reason - contact support.esri.com and see if they can help you.

Re: Clip tool will not clip raster layer

Hope-Hauptman — Tue, 31 Aug 2021 20:21:08 GMT

Thank you - that worked! And I had no idea that support.esri.com existed so thank you twice! Much appreciated.