I have used the upslope command to create multiple drainage areas. Area1 is the entire basin, Area2 is a little smaller and overlaps Area1, Area3 is a little smaller and overlaps Area2, this continues for all 12 areas. Is there a command that will divide Area 1 into smaller polygons?All areas, need to break the yellow area, which is beneath all the other polygons, into smaller polygon segments

  • Are you looking to use a QGIS equivalent of the Update tool in ArcGIS?
    – Adam Thom
    Commented Jun 11, 2021 at 21:34
  • Yes sir, that would be great!
    – Chad
    Commented Jun 16, 2021 at 14:45

1 Answer 1


It looks like you are wanting a tool for QGIS that is the same as the Update tool in ArcGIS.

Unfortunately for you, there does not appear to be a similar tool in existence yet.

However, this answer here by artwork21 gives a good work flow for a multistep workaround. Hopefully you are able to complete your task by following the instructions in the answer.

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