I have a soil survey polygon map with each polygon representing a soil type.

If I examine the attribute table of the layer, I can see what each polygon represents.

If I select a row in the attribute table it highlights the proper polygon on the map.

If I convert this layer to a raster, ArcMap colors each polygon according to it's correct soil type.

However, when I use Identify on one of these polygons it reports NoData and shows a blank table.

So it seems the attribute are not being reflected on the map itself.

Any idea of the cause and/or how to fix?

enter image description here

  • 2
    You converted the vector to raster -- In what format? At what bit depth? How did you map polygon attributes to raster values? It would probably help if you include a graphic that shows the raster on top of the polygon layer and denotes where the Identity tool was clicked. BTW: ArcGIS 9.x was Retired in Dec 2013, and even 10.0 will be Retired in a few weeks. If you're going to be starting GIS, using something released this decade is advised. – Vince Dec 1 '15 at 2:28
  • 2
    I'd also note that the graphic shows NoData for the raster, not the polygon layer. – Vince Dec 1 '15 at 2:31
  • As a new user please take the 2-minute Tour to learn more about our focussed Q&A format. What you are observing here is the software working correctly. The misunderstanding seems to relate to using Identify to identify from a raster and expecting to see polygon attributes returned. – PolyGeo Dec 1 '15 at 3:18

The identify tool yields a result for the layer(s) selected in the drop down list on the right of "identify from:" . In your case, the selected layer is currently "orange_soil_raster" and not "durh_soil_utm". Change the identify target to "all visible layers" or "durh_soil_utm" and it will work. Note that in the first case you will need to expand the results for your layer of interest.

  • Ah. I'm used to it just being the top most layer. Good eye. Thanks!! – theforestecologist Dec 1 '15 at 15:05

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.