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@ue-too/border / inverseMercatorProjection

Function: inverseMercatorProjection() ​

inverseMercatorProjection(point, centerLongitude): GeoCoord

Defined in: projection.ts:85

Converts a Mercator projection point back to geographic coordinates.

Parameters ​

point ​

Point

The point in Mercator projection (in meters)

centerLongitude ​

number = 0

The central meridian in degrees (must match the forward projection)

Returns ​

GeoCoord

The geographic coordinate

Remarks ​

This is the inverse of mercatorProjection. Given a point in Mercator projection space (in meters), it returns the corresponding latitude/longitude.

Example ​

typescript
const point = { x: -14232.4, y: 6711665.7 };
const coord = inverseMercatorProjection(point);
console.log(coord); // { latitude: ~51.5, longitude: ~-0.13 }