Question 1

How to use csv2geojson in a web browser?

Accepted Answer

Include the standalone script from npmcdn.com, then call csv2geojson.csv2geojson() with your CSV string. It's suitable for client-side conversions in mapping tools, but performance may vary with large datasets.

Question 2

csv2geojson or gdal for converting CSV to GeoJSON?

Accepted Answer

csv2geojson is lightweight and JavaScript-based, ideal for quick web integrations and simple conversions. GDAL is more powerful, supports many formats and projections, but requires external installation and has a steeper learning curve.

Question 3

How to specify custom latitude and longitude columns in csv2geojson?

Accepted Answer

Use the --lat and --lon options in the CLI or latfield and lonfield parameters in the API. If automatic detection fails, you must manually define these column names to ensure accurate conversion.

Question 4

Does csv2geojson handle CSV files with headers?

Accepted Answer

Yes, it automatically uses the first row as headers to map columns, and all non-coordinate columns are preserved as properties in the GeoJSON features, maintaining data integrity.

Question 5

What are the performance limits of csv2geojson with large files?

Accepted Answer

As a simple, in-memory tool, it may struggle with very large CSV files due to memory constraints. For big datasets, consider chunking the data or using more optimized geospatial libraries.

Question 6

How to convert CSV points to a polygon with csv2geojson?

Accepted Answer

First convert the CSV to GeoJSON points, then use the toPolygon function from the API. In CLI, you'd need to handle this programmatically, as there's no direct flag for polygon output.

csv2geojson

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