Question 1

How do I convert GeoJSON to WKT using geomet?

Accepted Answer

Use the wkt.dumps() function with a GeoJSON dictionary. For example, wkt.dumps({'type': 'Point', 'coordinates': [116.4, 45.2]}) returns 'POINT (116.4 45.2)'. The README shows options like decimals for precision control.

Question 2

geomet vs shapely: which one should I use for geospatial data?

Accepted Answer

GeoMet is best for lightweight format conversion without dependencies, while Shapely is better for spatial operations like buffering and intersection. Shapely requires GEOS, making it more powerful but less portable than GeoMet.

Question 3

Does geomet support 3D and 4D geometries?

Accepted Answer

Yes, GeoMet handles 2D, 3D (Z), and 4D (ZM) geometries for all supported formats, including Points and Polygons with elevation and measure dimensions, as confirmed in the functionality table.

Question 4

How can I preserve SRID when converting between WKT and GeoJSON?

Accepted Answer

Use Extended WKT (EWKT) with an SRID prefix. GeoMet automatically handles SRID in the 'meta' key for GeoJSON, as shown in examples where wkt.loads('SRID=4326;POINT(10 20)') includes 'meta': {'srid': '4326'}.

Question 5

Can geomet convert empty points to WKB?

Accepted Answer

No, GeoMet does not support converting empty geometries to binary formats like WKB. Attempting this raises a ValueError, as explained in the limitations due to dimensionality issues.

Question 6

What formats does geomet support besides GeoJSON and WKT?

Accepted Answer

GeoMet supports GeoJSON, WKT/WKB, Extended WKT/WKB (EWKT/EWKB), and GeoPackage Binary formats. It does not support other common formats like KML or Shapefile, limiting its scope.

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