Dropping z-value from geometry and transfering it to new field

Question

Having a points shapefile with z values, how do I keep in the geometry only the x,y values? I also want to move the z values to a newly created double field.

Might be worth having a look here: http://www.faunalia.com/content/transfer-3d-shapefiles-z-values-table-attributes — nhopton, Dec 13 '12 at 19:52

score 2 · Answer 1 · answered Oct 20 '21 at 05:15

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Extract Z values which "Extracts z values from geometries into feature attributes."
Right-click the layer - Export - Save Features As and untick "Include z-dimension"

answered Oct 20 '21 at 05:15

BERA

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score 2 · Answer 2 · answered Dec 13 '12 at 18:14

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What about exporting with appended Lat/Lon (Vector -> Geometry-Tools -> Export/Append Geometry Columns), saving as new file ? If the function is implemented 3D (sorry, I've no idea if) this should give you the required result. To make shure the z is dropped, you might export the result as CSV, edit and again load as new layer.

answered Dec 13 '12 at 18:14

Chris Pallasch

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The function doesn't have z support. – tudorbarascu Dec 13 '12 at 18:49
There is an thread which might be helpful:
http://gis.stackexchange.com/questions/19163/how-to-convert-shp-to-csv-including-attributes-and-geometry

Especially the idea to transfer the shp into a database
– Chris Pallasch Dec 13 '12 at 19:24

score 2 · Answer 3 · answered Sep 16 '13 at 11:07

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I used http://converter.mygeodata.eu/ there I can convert a shape file to csv file with xyz or xy values. Edit and again load as new layer.

answered Sep 16 '13 at 11:07

Nicolas

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Dropping z-value from geometry and transfering it to new field

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