Question 1

How do I convert a KML file to GeoJSON in Node.js?

Accepted Answer

Install @tmcw/togeojson and xmldom, then use the kml function with a parsed XML DOM. The README provides example code for reading files and parsing XML seamlessly.

Question 2

togeojson vs GDAL for geographic data conversion?

Accepted Answer

togeojson is best for lightweight, JavaScript-based conversion of KML, GPX, and TCX to GeoJSON in web apps. GDAL is more powerful for complex GIS formats and command-line use but has a steeper learning curve.

Question 3

Does togeojson support GPX waypoints and routes?

Accepted Answer

Yes, it converts GPX tracks and routes to GeoJSON LineStrings with properties like name and time, but some optional metadata tags may not be fully preserved, as noted in the feature support list.

Question 4

How to handle large GPX files in the browser without crashing?

Accepted Answer

togeojson uses generators for conversion, allowing incremental processing. Combine it with fetch and streaming XML parsing to manage memory efficiently for big datasets.

Question 5

Why doesn't togeojson convert KML NetworkLinks?

Accepted Answer

NetworkLinks require asynchronous network requests, which would complicate the library. The maintainers prioritize simplicity, suggesting separate preprocessing if needed, as explained in the FAQ.

togeojson

What is togeojson?

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