Question 1

How do I parse a GeoJSON file with go-geom?

Accepted Answer

Use the encoding/geojson package to decode GeoJSON data into geometry types. For example, call geojson.Unmarshal on a JSON byte slice to convert it to a geom.T geometry, as shown in the package documentation.

Question 2

What's the difference between go-geom and the orb geometry library?

Accepted Answer

go-geom focuses on efficiency and database integration with cache-friendly structures and 3D support, while orb is simpler and more general-purpose for 2D operations. go-geom is better for performance-critical geospatial backends, whereas orb might suit rapid prototyping.

Question 3

Does go-geom support 3D distance calculations?

Accepted Answer

Yes, the xyz package provides 3D geometry functions including distance calculations. You can use functions like xyz.Distance to compute distances between 3D points, as detailed in the topology functions section.

Question 4

How do I enable security features in go-geom to prevent memory attacks?

Accepted Answer

Set a positive value for wkbcommon.MaxGeometryElements to limit the number of elements in decoded geometries. This prevents allocation of excessive memory from malformed WKB or EWKB inputs, but it's not enabled by default.

Question 5

Can I use go-geom to encode geometry to KML format?

Accepted Answer

Yes, go-geom supports encoding to KML through the encoding/kml package. However, decoding KML is not supported, so it's a one-way process for this format, which might be a limitation for some workflows.

Question 6

Is go-geom good for building a web mapping application?

Accepted Answer

go-geom is excellent for backend geometry processing and database integration, but you'll need additional libraries for map rendering, tile serving, or frontend visualization. It's a solid foundation but not a complete solution out-of-the-box.

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