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I am trying to create an automatic procedure for using ogr2ogr to read a PostGIS table and output a KML file containing line features. However, I need to define the styling of these lines including both width and color. Potentially I could save the styling information as attributes if that could help.

Is this possible with ogr2ogr?

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    It may happen automatically if you add a field named "OGR_STYLE" into your table in PostGIS and fill it with drawing instructions as described in gdal.org/ogr_feature_style.html. – user30184 Apr 10 '18 at 10:44
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I will answer this question myself. As the comment by user30184 mentions, you can use a field named "OGR_STYLE" to define the styling for your features. I could not get this to work with point features, but it worked well with line features. For example:

OGR_STYLE: PEN(c:#b3ff00,w:2.5px)

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