1

I am trying to extract elevation values for each point in a point .shp from a DEM. Both files align and are in the same CRS - 4326. The tool runs but I receive an error message and the output file is completely empty. Does anyone have any tips on how to get a correct result?

This error message is repeated many times:

Feature write errors: Feature creation error (OGR error: Attempt to write non-point (MULTIPOINT) geometry to point shapefile.)

error message

3
  • 4
    What software are you working in? It looks like the tool may not support multipart geometry thus, the "non-point (MULTIPOINT)" error. Try exploding your shapefile so that it is not MULTIPOINT. Also, please add a tag indicating the software that this relates to. Jul 22 '19 at 17:19
  • I am using QGIS 3.4
    – nmichelg
    Jul 22 '19 at 17:24
  • The multipart geometry output from the Regular Points Tool seems to be the problem I tried creating a new point dataset using Create Grid but got the same multipart output. I don't understand why a point .shp would be multipart. Is there a way to remedy this?
    – nmichelg
    Jul 22 '19 at 18:52
1

That error message says that your input geometry type should be POINT, but it's actually MULTIPOINT. The solution is to convert your MULTIPOINT layer to POINT format. Use the Multipart to singleparts tool, which you can find in the Processing Toolbox.

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.