{"adoption": {"forks": 207, "observed_at": "2026-08-28T04:04:03.365237+00:00", "stars": 1227}, "canonical_url": "https://ross.abutalabs.com/products/geodesy", "card": {"archived": false, "artifact_type": "library", "description": "Libraries of geodesy functions implemented in JavaScript", "domain": ["developer-tools"], "enriched": true, "function": ["geospatial", "math", "sdk"], "health_score": 20, "homepage": "http://www.movable-type.co.uk/scripts/geodesy-library.html", "language": "JavaScript", "license": "MIT", "license_family": "permissive", "maturity": "stable", "member_repos": ["chrisveness/geodesy"], "name": "chrisveness/geodesy", "platform": ["browser", "cross-platform"], "pushed_at": "2024-07-10T16:54:06+00:00", "repo": "chrisveness/geodesy", "stars": 1227, "tags": ["geodesy", "latitude-longitude", "haversine", "vincenty", "utm", "mgrs", "datum-conversion", "n-vector", "wgs84", "coordinate-conversion", "geospatial", "maps", "algorithms", "javascript", "nodejs"], "topics": ["geodesy", "latitude", "longitude", "distance", "bearing", "destination", "haversine", "vincenty", "rhumb", "ellipsoid", "datum", "trf", "n-vector", "wgs84", "utm", "mgrs", "javascript"], "urls": [], "use_cases": ["calculate distance between two latitude/longitude points", "compute bearing and destination point from lat/lon", "convert lat/lon to UTM or MGRS coordinates", "convert between datums like NAD83, OSGB36, or ITRF2014", "work with n-vector geodesy representations", "parse and format degrees minutes seconds coordinates", "convert geodetic coordinates to cartesian x/y/z"], "what_it_is": "A JavaScript library of geodesy functions covering distances, bearings, and coordinate conversions on spherical and ellipsoidal earth models. It includes UTM/MGRS and OSGB grid references, historical datum conversions, and modern terrestrial reference frame conversions.", "when_to_avoid": ["you need geospatial features beyond coordinate math such as routing, geocoding, or map rendering", "you work in a language other than JavaScript and cannot port the algorithms", "you need a full GIS toolkit with projections beyond the ones covered", "you require high-performance bulk processing of millions of coordinates"], "when_to_choose": ["you need accurate geodesic calculations in JavaScript for browser or Node.js", "you need coordinate conversions between WGS84, UTM, MGRS, or national grids", "you want well-documented, language-agnostic geodesy algorithms you can port", "you need both simple spherical and high-accuracy ellipsoidal earth models"]}, "data_as_of": "2026-08-30T08:39:29.467469+00:00", "members": [{"path": "/products/geodesy", "repo": "chrisveness/geodesy", "role": "main", "score": 32}], "provenance": {"archived": {"kind": "observed", "observed_at": "2026-08-28T04:04:03.365237+00:00", "source": "github"}, "artifact_type": {"confidence": null, "enriched_at": "2026-08-30T06:15:14.795505+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "82e32c9dcc28c23a149bf628492cab16a6bc7c5b418353f9a3d2801f00730fe1", "fetched_at": "2026-08-28T04:04:03.365237+00:00", "kind": "readme", "missing": false, "url": "https://github.com/chrisveness/geodesy"}, {"content_hash": "bee6fdd43123ec9ebcb09a1809c237ead87cec522c8966efeba0b7904cea7fb2", "fetched_at": "2026-08-29T12:22:57.184257+00:00", "kind": "homepage", "missing": false, "url": "http://www.movable-type.co.uk/scripts/geodesy-library.html"}, {"content_hash": "af4c72c34ab046fa6e3682556adf0c23903e724ecc48dfdefaae0be5a3d793b8", "fetched_at": "2026-08-29T12:22:57.187551+00:00", "kind": "registry_npm", "missing": false, "url": "https://registry.npmjs.org/geodesy"}], "taxonomy_version": 1}, "description": {"kind": "observed", "observed_at": "2026-08-28T04:04:03.365237+00:00", "source": "github"}, "domain": {"confidence": null, "enriched_at": "2026-08-30T06:15:14.795505+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "82e32c9dcc28c23a149bf628492cab16a6bc7c5b418353f9a3d2801f00730fe1", "fetched_at": "2026-08-28T04:04:03.365237+00:00", "kind": "readme", "missing": false, "url": "https://github.com/chrisveness/geodesy"}, {"content_hash": "bee6fdd43123ec9ebcb09a1809c237ead87cec522c8966efeba0b7904cea7fb2", "fetched_at": "2026-08-29T12:22:57.184257+00:00", "kind": "homepage", "missing": false, "url": "http://www.movable-type.co.uk/scripts/geodesy-library.html"}, {"content_hash": "af4c72c34ab046fa6e3682556adf0c23903e724ecc48dfdefaae0be5a3d793b8", "fetched_at": "2026-08-29T12:22:57.187551+00:00", "kind": "registry_npm", "missing": false, "url": "https://registry.npmjs.org/geodesy"}], "taxonomy_version": 1}, "enriched": {"inputs": [], "kind": "computed", "method": "enrichment_status"}, "function": {"confidence": null, "enriched_at": "2026-08-30T06:15:14.795505+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "82e32c9dcc28c23a149bf628492cab16a6bc7c5b418353f9a3d2801f00730fe1", "fetched_at": "2026-08-28T04:04:03.365237+00:00", "kind": "readme", "missing": false, "url": "https://github.com/chrisveness/geodesy"}, {"content_hash": "bee6fdd43123ec9ebcb09a1809c237ead87cec522c8966efeba0b7904cea7fb2", "fetched_at": "2026-08-29T12:22:57.184257+00:00", "kind": "homepage", "missing": false, "url": "http://www.movable-type.co.uk/scripts/geodesy-library.html"}, {"content_hash": "af4c72c34ab046fa6e3682556adf0c23903e724ecc48dfdefaae0be5a3d793b8", "fetched_at": "2026-08-29T12:22:57.187551+00:00", "kind": "registry_npm", "missing": false, "url": "https://registry.npmjs.org/geodesy"}], "taxonomy_version": 1}, "health_score": {"inputs": ["days_since_push", "days_since_release", "archived"], "kind": "computed", "method": "health_v1"}, "homepage": {"kind": "observed", "observed_at": "2026-08-28T04:04:03.365237+00:00", "source": "github"}, "language": {"kind": "observed", "observed_at": "2026-08-28T04:04:03.365237+00:00", "source": "github"}, "license": {"kind": "observed", "observed_at": "2026-08-28T04:04:03.365237+00:00", "source": "github"}, "license_family": {"inputs": ["license"], "kind": "computed", "method": "license_family"}, "maturity": {"confidence": null, "enriched_at": "2026-08-30T06:15:14.795505+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "82e32c9dcc28c23a149bf628492cab16a6bc7c5b418353f9a3d2801f00730fe1", "fetched_at": "2026-08-28T04:04:03.365237+00:00", "kind": "readme", "missing": false, "url": "https://github.com/chrisveness/geodesy"}, {"content_hash": "bee6fdd43123ec9ebcb09a1809c237ead87cec522c8966efeba0b7904cea7fb2", "fetched_at": "2026-08-29T12:22:57.184257+00:00", "kind": "homepage", "missing": false, "url": "http://www.movable-type.co.uk/scripts/geodesy-library.html"}, {"content_hash": "af4c72c34ab046fa6e3682556adf0c23903e724ecc48dfdefaae0be5a3d793b8", "fetched_at": "2026-08-29T12:22:57.187551+00:00", "kind": "registry_npm", "missing": false, "url": "https://registry.npmjs.org/geodesy"}], "taxonomy_version": 1}, "member_repos": {"kind": "observed", "observed_at": "2026-08-28T04:04:03.365237+00:00", "source": "github"}, "name": {"kind": "observed", "observed_at": "2026-08-28T04:04:03.365237+00:00", "source": "github"}, "platform": {"confidence": null, "enriched_at": "2026-08-30T06:15:14.795505+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "82e32c9dcc28c23a149bf628492cab16a6bc7c5b418353f9a3d2801f00730fe1", "fetched_at": "2026-08-28T04:04:03.365237+00:00", "kind": "readme", "missing": false, "url": "https://github.com/chrisveness/geodesy"}, {"content_hash": "bee6fdd43123ec9ebcb09a1809c237ead87cec522c8966efeba0b7904cea7fb2", "fetched_at": "2026-08-29T12:22:57.184257+00:00", "kind": "homepage", "missing": false, "url": "http://www.movable-type.co.uk/scripts/geodesy-library.html"}, {"content_hash": "af4c72c34ab046fa6e3682556adf0c23903e724ecc48dfdefaae0be5a3d793b8", "fetched_at": "2026-08-29T12:22:57.187551+00:00", "kind": "registry_npm", "missing": false, "url": "https://registry.npmjs.org/geodesy"}], "taxonomy_version": 1}, "pushed_at": {"kind": "observed", "observed_at": "2026-08-28T04:04:03.365237+00:00", "source": "github"}, "repo": {"kind": "observed", "observed_at": "2026-08-28T04:04:03.365237+00:00", "source": "github"}, "stars": {"kind": "observed", "observed_at": "2026-08-28T04:04:03.365237+00:00", "source": "github"}, "tags": {"confidence": null, "enriched_at": "2026-08-30T06:15:14.795505+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "82e32c9dcc28c23a149bf628492cab16a6bc7c5b418353f9a3d2801f00730fe1", "fetched_at": "2026-08-28T04:04:03.365237+00:00", "kind": "readme", "missing": false, "url": "https://github.com/chrisveness/geodesy"}, {"content_hash": "bee6fdd43123ec9ebcb09a1809c237ead87cec522c8966efeba0b7904cea7fb2", "fetched_at": "2026-08-29T12:22:57.184257+00:00", "kind": "homepage", "missing": false, "url": "http://www.movable-type.co.uk/scripts/geodesy-library.html"}, {"content_hash": "af4c72c34ab046fa6e3682556adf0c23903e724ecc48dfdefaae0be5a3d793b8", "fetched_at": "2026-08-29T12:22:57.187551+00:00", "kind": "registry_npm", "missing": false, "url": "https://registry.npmjs.org/geodesy"}], "taxonomy_version": 1}, "topics": {"kind": "observed", "observed_at": "2026-08-28T04:04:03.365237+00:00", "source": "github"}, "urls": {"kind": "observed", "observed_at": "2026-08-28T04:04:03.365237+00:00", "source": "github"}, "use_cases": {"confidence": null, "enriched_at": "2026-08-30T06:15:14.795505+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "82e32c9dcc28c23a149bf628492cab16a6bc7c5b418353f9a3d2801f00730fe1", "fetched_at": "2026-08-28T04:04:03.365237+00:00", "kind": "readme", "missing": false, "url": "https://github.com/chrisveness/geodesy"}, {"content_hash": "bee6fdd43123ec9ebcb09a1809c237ead87cec522c8966efeba0b7904cea7fb2", "fetched_at": "2026-08-29T12:22:57.184257+00:00", "kind": "homepage", "missing": false, "url": "http://www.movable-type.co.uk/scripts/geodesy-library.html"}, {"content_hash": "af4c72c34ab046fa6e3682556adf0c23903e724ecc48dfdefaae0be5a3d793b8", "fetched_at": "2026-08-29T12:22:57.187551+00:00", "kind": "registry_npm", "missing": false, "url": "https://registry.npmjs.org/geodesy"}], "taxonomy_version": 1}, "what_it_is": {"confidence": null, "enriched_at": "2026-08-30T06:15:14.795505+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "82e32c9dcc28c23a149bf628492cab16a6bc7c5b418353f9a3d2801f00730fe1", "fetched_at": "2026-08-28T04:04:03.365237+00:00", "kind": "readme", "missing": false, "url": "https://github.com/chrisveness/geodesy"}, {"content_hash": "bee6fdd43123ec9ebcb09a1809c237ead87cec522c8966efeba0b7904cea7fb2", "fetched_at": "2026-08-29T12:22:57.184257+00:00", "kind": "homepage", "missing": false, "url": "http://www.movable-type.co.uk/scripts/geodesy-library.html"}, {"content_hash": "af4c72c34ab046fa6e3682556adf0c23903e724ecc48dfdefaae0be5a3d793b8", "fetched_at": "2026-08-29T12:22:57.187551+00:00", "kind": "registry_npm", "missing": false, "url": "https://registry.npmjs.org/geodesy"}], "taxonomy_version": 1}, "when_to_avoid": {"confidence": null, "enriched_at": "2026-08-30T06:15:14.795505+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "82e32c9dcc28c23a149bf628492cab16a6bc7c5b418353f9a3d2801f00730fe1", "fetched_at": "2026-08-28T04:04:03.365237+00:00", "kind": "readme", "missing": false, "url": "https://github.com/chrisveness/geodesy"}, {"content_hash": "bee6fdd43123ec9ebcb09a1809c237ead87cec522c8966efeba0b7904cea7fb2", "fetched_at": "2026-08-29T12:22:57.184257+00:00", "kind": "homepage", "missing": false, "url": "http://www.movable-type.co.uk/scripts/geodesy-library.html"}, {"content_hash": "af4c72c34ab046fa6e3682556adf0c23903e724ecc48dfdefaae0be5a3d793b8", "fetched_at": "2026-08-29T12:22:57.187551+00:00", "kind": "registry_npm", "missing": false, "url": "https://registry.npmjs.org/geodesy"}], "taxonomy_version": 1}, "when_to_choose": {"confidence": null, "enriched_at": "2026-08-30T06:15:14.795505+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "82e32c9dcc28c23a149bf628492cab16a6bc7c5b418353f9a3d2801f00730fe1", "fetched_at": "2026-08-28T04:04:03.365237+00:00", "kind": "readme", "missing": false, "url": "https://github.com/chrisveness/geodesy"}, {"content_hash": "bee6fdd43123ec9ebcb09a1809c237ead87cec522c8966efeba0b7904cea7fb2", "fetched_at": "2026-08-29T12:22:57.184257+00:00", "kind": "homepage", "missing": false, "url": "http://www.movable-type.co.uk/scripts/geodesy-library.html"}, {"content_hash": "af4c72c34ab046fa6e3682556adf0c23903e724ecc48dfdefaae0be5a3d793b8", "fetched_at": "2026-08-29T12:22:57.187551+00:00", "kind": "registry_npm", "missing": false, "url": "https://registry.npmjs.org/geodesy"}], "taxonomy_version": 1}}, "score": {"components": {"activity": 0, "longevity": 100, "rhythm": 35}, "computed_at": "2026-09-02T17:46:02.011165+00:00", "flags": ["no_releases"], "formula": "round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)", "inputs": {"age_days": 4480, "days_push": 784, "days_rel": null, "gap_med": null, "n_releases_24m": 0}, "score": 32, "version": 2}, "staleness": {"enrichment_outdated": false, "low_confidence": false, "scrape_days": 9, "stale_scrape": false}}