Use this GeoJSON operation to summarize valid geometry for display, indexing, or further spatial processing while retaining the original feature coordinates.

GeoJSON

GeoJSON geometry, feature or collection.

Compute the [west, south, east, north] bounding box enclosing every position in GeoJSON. The tool evaluates the supplied inputs together and returns the named outputs below; it does not infer omitted operating conditions or change the units shown.^[1]

Bounding box

[west, south, east, north] extents.

West

Minimum longitude.

South

Minimum latitude.

East

Maximum longitude.

North

Maximum latitude.

• GeoJSON uses longitude-latitude coordinates in WGS 84 and planar shortcuts can mis-handle the antimeridian, poles, holes, invalid rings, mixed geometries, and large extents. A vertex mean is not always a geometric or geodesic centroid.
• Use finite inputs in the displayed units and preserve more precision than the final presentation requires. Independently verify safety-critical, financial, compliance, or production decisions.

Validate geometry, normalize longitude handling, and use a geospatial library with an appropriate projected or geodesic method for precision analysis.

• GeoJSON Centroid

  Compute the arithmetic mean (vertex centroid) of every position contained in GeoJSON.

• Coale Demeny Region Family Lookup

  Validate and label a Coale-Demeny regional model life table family (West, North, East or South) at a mortality level from 1 to 25.

• True Heading Calculator

  Convert a magnetic heading to a true heading using east-positive variation (west is best).