transform

Reproject coordinates between EPSG coordinate reference systems, with the datum shift applied.

Reproject coordinates between EPSG coordinate reference systems, with the datum shift applied. Accepts a bare position, an array of positions at any nesting depth, or a GeoJSON Feature, FeatureCollection or Geometry, and answers in whichever shape it was given, preserving properties, ids and foreign members. Covers 1380 codes: WGS 84, ITRF2020, NAD27 and every NAD83 realization as geographic, Web Mercator, all 120 WGS 84 UTM zones north and south, the NAD27 and NAD83 UTM zones, and the NAD27 and NAD83 State Plane and low-distortion zones, Oregon and Alaska included. Reach for it before calling /v1/geometry, /v1/h3/index, /v1/h3/polyfill or /v1/pip, which take EPSG:4326 only and refuse anything outside -180..180 and -90..90. One price per call whatever the payload: 10000 positions cost exactly what one position costs, so batch rather than sending a position at a time. Horizontal only: elevations pass through untouched. Datum shifts, and read this before buying: two mechanisms run between the two sides and the response names every step. Between NAD27 and the NAD83 realizations (NAD83, HARN, NSRS2007, 2011, PA11) the NOAA NGS NADCON 5.0 grids are applied, 2016-09-01 release, public domain, biquadratic interpolation as NGS specifies, covering the conterminous United States, Alaska, Hawaii and Puerto Rico with the US Virgin Islands; a position outside that coverage is refused with outside_datum_grid rather than answered without the shift. Between WGS 84 and NAD83(2011) or NAD83(PA11) the EPSG time-dependent Helmert transformations 10334 and 10336 are applied with WGS 84 read as ITRF2020, which the current WGS 84 (G2296) realizes to a few centimetres. That transformation depends on when the coordinates were observed, because the North American plate moves about 2 cm a year against ITRF2020: send "epoch" as a decimal year (2024.5) to say when, or it is evaluated at 2010.0, the NAD83(2011) reference epoch, and the response says which. Every response carries datumShiftApplie

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0 of 30 paid calls toward a letter

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$0.005 per call

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0x76a51b5d…21968fce

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https://api.geoprimitives.dev/v1/transform

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first 35 days ago · last 14 days ago

51 free handshakes

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Handshakescomputed 8 days ago

0.000 from 51 free handshakes over 30 days · UNRATED ?

How the composite of 0.000 is made up, part by part
Component	Weight	Measured		Short ?	Uncertain ?
livenesscosts the most it answered at all	0.75	0.00		−0.750	0
latency p95 it answered as fast as its class	0.25	0.00		−0.250	0
Composite	1.00		gap to 1.000 = 1.000 · 1.000 short · 0.000 uncertain	−1.000	−0.000

Not measured: correctness · nobody paid; honesty · nobody paid; schema conformance · no answer had a published shape to check; price stability · nothing to score

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Verify it yourselfnpx teppi-check https://api.geoprimitives.dev/v1/transformcurl -s https://api.teppi.xyz/v1/trust/cap_01M1A59RVKJMHG4599D89Q4AAT