Apply Ramer-Douglas-Peucker line simplification to GeoJSON features or collections in JavaScript or via CLI.
simplify-geojson is a Node.js tool that applies the Ramer-Douglas-Peucker algorithm to simplify GeoJSON geometries by reducing point density while preserving shape. It helps optimize geospatial data for performance in mapping applications, data storage, and transmission. The tool supports both programmatic use in JavaScript and command-line processing.
Developers and data engineers working with geospatial data in Node.js environments, such as those building mapping applications, processing GPS logs, or managing large GeoJSON datasets.
It offers a straightforward, dedicated solution for GeoJSON simplification without requiring deep GIS expertise, with dual JavaScript and CLI interfaces for flexibility. The integration with the simplify-geometry library ensures reliable algorithmic performance.
apply the ramer-douglas-peucker line simplification to geojson features or feature collections in JS or on the CLI
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Offers both JavaScript API and command-line tool, enabling seamless integration into Node.js workflows or automation via shell scripts, as demonstrated in the README with piping examples.
Leverages the established Ramer-Douglas-Peucker algorithm through the simplify-geometry library, ensuring reliable simplification for lines and polygons without reinventing the wheel.
Supports LineString, MultiLineString, Polygon, and MultiPolygon geometries, including holes in polygons, covering common geospatial use cases as specified in the features.
Allows fine-tuning of simplification aggressiveness via a tolerance parameter in degrees, with a default of 0.001 for balancing detail reduction and shape preservation.
Does not support all GeoJSON geometry types such as Point or GeometryCollection, restricting its utility to linear and polygonal data only, which may exclude some datasets.
Uses degrees for tolerance (1 degree ≈ 69 miles), which can be non-intuitive for projects using metric systems or requiring precise, distance-based simplification without conversion.
Relies entirely on the simplify-geometry module for core algorithms, meaning bugs or updates in that library directly impact this tool, adding a layer of maintenance risk.