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I'm trying to create a one-sided buffer from a polyline shapefile using ogr2ogr command line and a virtual file. However, it only creates a .dbf file and not the shapefiles. Here's the code:

ogr2ogr -sql "SELECT ST_Buffer(A.geometry,50, 'right') AS geometry, A.* FROM Polyline A" -dialect SQLITE Buffer.shp input.vrt

I have to mention that this code works fine when not putting the 'right' or 'left' parameters.

Any ideas?

1 Answer 1

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I think for spatialite you can use ST_SingleSidedBuffer instead.

It's listed in the spatialite help under GEOS Specific Features, http://www.gaia-gis.it/gaia-sins/spatialite-sql-latest.html#p14b

from the docs:

ST_SingleSidedBuffer( geom Curve , radius Double precision , left_or_right Integer ) : Curve

It's mentions that the linestring has to be non-closed too.

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  • Thanks for your reply @SaultDon. But where do I have to assign input, output and buffer distance in this code?
    – Mehdi
    Apr 4, 2017 at 5:01
  • Very much alike that you had with ST_Buffer. What have you tried?
    – user30184
    Apr 4, 2017 at 6:20

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