buffer

Buffer a geometry by a distance in metres and get the offset polygon back.

Buffer a geometry by a distance in metres and get the offset polygon back. Use it for service areas, setbacks, and proximity envelopes you will later test with POST /v1/pip. Accepts any geometry -- point, line, polygon, or a collection of them, each buffered about its own centre latitude -- and answers with a Feature, or a FeatureCollection when you sent several. A buffer that collapses (a negative distance larger than the shape, or any negative distance on a point or a line) answers geojson:null with empty:true, which is an answer and not an error. Geodesic-aware: turf buffers in an azimuthal equidistant plane scaled by a sphere, which is a systematic -0.56% error at the equator running to +0.44% at 80 deg latitude, and this endpoint cancels that by scaling the distance to the Gaussian radius of curvature at the feature's own centre latitude. Measured against GeographicLib the result is then within +/-0.34% of the requested distance at the equator, +/-0.08% at 60 deg, +/-0.04% at 70 deg and +/-0.01% at 80 deg; the residual is the ellipsoid's north-south versus east-west curvature, which no single sphere can represent, and it shrinks towards the poles. Between vertices the polygon edge cuts a further 1 - cos(pi/(4*steps)) inside the true offset curve, 0.054% at the default steps=24. Input is EPSG:4326 only. Limits: 2000 positions across the whole document, 1 MiB request body, distance within +/-1000000 m, steps 1 to 128.

UNRATEDDelisted

Overview

Grade?

UNRATED

0 of 30 paid calls toward a letter

Price

$0.01 per call

Paid calls

none yet

delivery unknown until someone pays

More info

Seller?

0x76a51b5d…21968fce

URL

https://api.geoprimitives.dev/v1/geometry/buffer

Seen

first 34 days ago · last 14 days ago

51 free handshakes

Payment

Pays through

— never asked

Offered on?

— never asked

Listed on?

Base

Paid calls

No paid calls yet.

Delivery is unknown until someone pays. A handshake only shows it asks for payment.

Paid for on the same host1 of 21 endpoints at api.geoprimitives.dev

Other endpoints on api.geoprimitives.dev that were paid for
Endpoint	Grade	Paid calls	Last result	Last seen
GET /v1/marine/depth?lat=57.0405&lon=-135.3421	UNRATED	2	delivered	11 hr ago

All 21 endpoints on this host

Verify it yourselfnpx teppi-check https://api.geoprimitives.dev/v1/geometry/buffercurl -s https://api.teppi.xyz/v1/trust/cap_01M1A59RX5NRWPYJRMS2PQQSE6