I am confused by the output I'm getting from ogr2ogr when converting a shapefile to WKT. What I'm expecting to see is something in the form below (from Wikipedia):
MULTIPOLYGON (((40 40, 20 45, 45 30, 40 40)),
((20 35, 45 20, 30 5, 10 10, 10 30, 20 35),
(30 20, 20 25, 20 15, 30 20)))
What I'm getting out of ogr2ogr -f CSV out.wkt source.shp -lco GEOMETRY=AS_WKT, in very abbreviated form, is this:
"MULTIPOLYGON (((-120.6 50.8, ...)", 33.9, 137.1, 2, 1,1,1
I do not understand how to interpret the final six numbers, which are not enclosed in brackets and fall outside the quotation marks. Can someone explain this or point me towards the appropriate documentation?
Best Answer
Ogr2ogr translates vector data sources between different formats. Shape file is one kind of data source format but WKT is not. WKT is just a way to represent geometries in a human understandable way. Data source consists of features/objects that consists of a geometry and attributes.
The ogr2ogr command you specified in your previous question translates that shape file which have some attributes to a csv file. In that csv file you have geometries as a WKT and attributes of features as a comma separeted values.