transform local coordinates to wgs84 or vice versa

Scale of Cartesian Coordinates

The primary entrypoint to the Firebase JS SDK

Find self-intersections in geojson polygon (possibly with interior rings)

Local-subprocess implementation of the DeepSeek Harness subprocess seam

TypeScript definitions for d3-polygon

a point geometry with transforms

Local-filesystem implementation of the DeepSeek Harness filesystem seam (ctx.fs)

Proj4js is a JavaScript library to transform point coordinates from one coordinate system to another, including datum transformations.

A Javascript function for reading a variety of coordinate formats and converting to decimal numbers. Builds on other efforts by returning the verbatim coordinates and the decimal coordinates all in one object.

visx scale

return all coordinates from a geojson object

<a href="https://nivo.rocks"><img alt="nivo" src="https://raw.githubusercontent.com/plouc/nivo/master/nivo.png" width="216" height="68"/></a>

visx point

Truncates precision of GeoJSON coordinates.

Finds the angle formed by two adjacent segments.

Martinez polygon clipping algorithm, does boolean operation on polygons (multipolygons, polygons with holes etc): intersection, union, difference, xor

Converts line(s) to polygon(s).

Removes redundant coordinates from a GeoJSON Geometry.

An astronomical library