{"adoption": {"forks": 291, "observed_at": "2026-08-28T04:06:37.982927+00:00", "stars": 2334}, "canonical_url": "https://ross.abutalabs.com/products/tangrams-tangram", "card": {"archived": false, "artifact_type": "library", "description": "WebGL map rendering engine for creative cartography", "domain": ["web-development", "graphics", "frontend"], "enriched": true, "function": ["graphics", "data-visualization", "web-scraping"], "health_score": 70, "homepage": "https://tangram.city", "language": "JavaScript", "license": "MIT", "license_family": "permissive", "maturity": "maintenance", "member_repos": ["tangrams/tangram"], "name": "tangrams/tangram", "platform": ["browser"], "pushed_at": "2026-02-08T03:24:49+00:00", "repo": "tangrams/tangram", "stars": 2334, "tags": ["webgl", "vector-tiles", "maps", "leaflet-plugin", "cartography", "3d-maps", "openstreetmap", "javascript", "web"], "topics": ["tangram", "map", "mapzen", "raster-tiles", "webgl", "vector-tiles", "leaflet", "magic", "rendering", "map-renderer", "vector-graphics"], "urls": [], "use_cases": ["render interactive 2D and 3D vector maps in the browser", "style custom map themes with a declarative scene file", "display OpenStreetMap vector tiles with WebGL acceleration", "add a WebGL map layer to an existing Leaflet map", "visualize GeoJSON or TopoJSON data as a map", "create creative cartography with custom raster and vector tile styling"], "what_it_is": "Tangram is a JavaScript library for rendering 2D and 3D maps live in the browser using WebGL, tuned for OpenStreetMap but supporting GeoJSON/TopoJSON and other vector tile sources. It integrates as a Leaflet plugin and uses declarative scene files for data sources, layers, and styling.", "when_to_avoid": ["you need a native mobile map engine (use Tangram ES instead)", "you just need simple slippy maps without custom styling (plain Leaflet may suffice)", "you need a fully maintained project with active feature development", "your target browsers lack WebGL support"], "when_to_choose": ["you need GPU-accelerated 2D/3D map rendering in a web browser", "you want deep custom styling of vector tiles for creative cartography", "you already use Leaflet and want a WebGL-powered layer", "you need to render GeoJSON/TopoJSON or custom vector tile sources"]}, "data_as_of": "2026-08-30T08:39:29.467469+00:00", "members": [{"path": "/products/tangrams-tangram", "repo": "tangrams/tangram", "role": "main", "score": 52}], "provenance": {"archived": {"kind": "observed", "observed_at": "2026-08-28T04:06:37.982927+00:00", "source": "github"}, "artifact_type": {"confidence": null, "enriched_at": "2026-08-30T02:37:47.487211+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "8dbfdf1c2ead49bfc1ddaff1ebf2f9ba3bedcda76bc6ebf70a7e52adef3229fc", "fetched_at": "2026-08-28T04:06:37.982927+00:00", "kind": "readme", "missing": false, "url": "https://github.com/tangrams/tangram"}, {"content_hash": "db84b2e3e65dce4120d977296de5a748830a89b4d3c003fea77997b914e9c927", "fetched_at": "2026-08-29T10:18:32.724027+00:00", "kind": "homepage", "missing": false, "url": "https://tangram.city"}, {"content_hash": "b13c3c7bedd88b0fd9242a474445cd38d6b8d9c2f7024deb9fa78d8b3136ee55", "fetched_at": "2026-08-29T10:18:32.732942+00:00", "kind": "registry_npm", "missing": false, "url": "https://registry.npmjs.org/tangram"}], "taxonomy_version": 1}, "description": {"kind": "observed", "observed_at": "2026-08-28T04:06:37.982927+00:00", "source": "github"}, "domain": {"confidence": null, "enriched_at": "2026-08-30T02:37:47.487211+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "8dbfdf1c2ead49bfc1ddaff1ebf2f9ba3bedcda76bc6ebf70a7e52adef3229fc", "fetched_at": "2026-08-28T04:06:37.982927+00:00", "kind": "readme", "missing": false, "url": "https://github.com/tangrams/tangram"}, {"content_hash": "db84b2e3e65dce4120d977296de5a748830a89b4d3c003fea77997b914e9c927", "fetched_at": "2026-08-29T10:18:32.724027+00:00", "kind": "homepage", "missing": false, "url": "https://tangram.city"}, {"content_hash": "b13c3c7bedd88b0fd9242a474445cd38d6b8d9c2f7024deb9fa78d8b3136ee55", "fetched_at": "2026-08-29T10:18:32.732942+00:00", "kind": "registry_npm", "missing": false, "url": "https://registry.npmjs.org/tangram"}], "taxonomy_version": 1}, "enriched": {"inputs": [], "kind": "computed", "method": "enrichment_status"}, "function": {"confidence": null, "enriched_at": "2026-08-30T02:37:47.487211+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "8dbfdf1c2ead49bfc1ddaff1ebf2f9ba3bedcda76bc6ebf70a7e52adef3229fc", "fetched_at": "2026-08-28T04:06:37.982927+00:00", "kind": "readme", "missing": false, "url": "https://github.com/tangrams/tangram"}, {"content_hash": "db84b2e3e65dce4120d977296de5a748830a89b4d3c003fea77997b914e9c927", "fetched_at": "2026-08-29T10:18:32.724027+00:00", "kind": "homepage", "missing": false, "url": "https://tangram.city"}, {"content_hash": "b13c3c7bedd88b0fd9242a474445cd38d6b8d9c2f7024deb9fa78d8b3136ee55", "fetched_at": "2026-08-29T10:18:32.732942+00:00", "kind": "registry_npm", "missing": false, "url": "https://registry.npmjs.org/tangram"}], "taxonomy_version": 1}, "health_score": {"inputs": ["days_since_push", "days_since_release", "archived"], "kind": "computed", "method": "health_v1"}, "homepage": {"kind": "observed", "observed_at": "2026-08-28T04:06:37.982927+00:00", "source": "github"}, "language": {"kind": "observed", "observed_at": "2026-08-28T04:06:37.982927+00:00", "source": "github"}, "license": {"kind": "observed", "observed_at": "2026-08-28T04:06:37.982927+00:00", "source": "github"}, "license_family": {"inputs": ["license"], "kind": "computed", "method": "license_family"}, "maturity": {"confidence": null, "enriched_at": "2026-08-30T02:37:47.487211+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "8dbfdf1c2ead49bfc1ddaff1ebf2f9ba3bedcda76bc6ebf70a7e52adef3229fc", "fetched_at": "2026-08-28T04:06:37.982927+00:00", "kind": "readme", "missing": false, "url": "https://github.com/tangrams/tangram"}, {"content_hash": "db84b2e3e65dce4120d977296de5a748830a89b4d3c003fea77997b914e9c927", "fetched_at": "2026-08-29T10:18:32.724027+00:00", "kind": "homepage", "missing": false, "url": "https://tangram.city"}, {"content_hash": "b13c3c7bedd88b0fd9242a474445cd38d6b8d9c2f7024deb9fa78d8b3136ee55", "fetched_at": "2026-08-29T10:18:32.732942+00:00", "kind": "registry_npm", "missing": false, "url": "https://registry.npmjs.org/tangram"}], "taxonomy_version": 1}, "member_repos": {"kind": "observed", "observed_at": "2026-08-28T04:06:37.982927+00:00", "source": "github"}, "name": {"kind": "observed", "observed_at": "2026-08-28T04:06:37.982927+00:00", "source": "github"}, "platform": {"confidence": null, "enriched_at": "2026-08-30T02:37:47.487211+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "8dbfdf1c2ead49bfc1ddaff1ebf2f9ba3bedcda76bc6ebf70a7e52adef3229fc", "fetched_at": "2026-08-28T04:06:37.982927+00:00", "kind": "readme", "missing": false, "url": "https://github.com/tangrams/tangram"}, {"content_hash": "db84b2e3e65dce4120d977296de5a748830a89b4d3c003fea77997b914e9c927", "fetched_at": "2026-08-29T10:18:32.724027+00:00", "kind": "homepage", "missing": false, "url": "https://tangram.city"}, {"content_hash": "b13c3c7bedd88b0fd9242a474445cd38d6b8d9c2f7024deb9fa78d8b3136ee55", "fetched_at": "2026-08-29T10:18:32.732942+00:00", "kind": "registry_npm", "missing": false, "url": "https://registry.npmjs.org/tangram"}], "taxonomy_version": 1}, "pushed_at": {"kind": "observed", "observed_at": "2026-08-28T04:06:37.982927+00:00", "source": "github"}, "repo": {"kind": "observed", "observed_at": "2026-08-28T04:06:37.982927+00:00", "source": "github"}, "stars": {"kind": "observed", "observed_at": "2026-08-28T04:06:37.982927+00:00", "source": "github"}, "tags": {"confidence": null, "enriched_at": "2026-08-30T02:37:47.487211+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "8dbfdf1c2ead49bfc1ddaff1ebf2f9ba3bedcda76bc6ebf70a7e52adef3229fc", "fetched_at": "2026-08-28T04:06:37.982927+00:00", "kind": "readme", "missing": false, "url": "https://github.com/tangrams/tangram"}, {"content_hash": "db84b2e3e65dce4120d977296de5a748830a89b4d3c003fea77997b914e9c927", "fetched_at": "2026-08-29T10:18:32.724027+00:00", "kind": "homepage", "missing": false, "url": "https://tangram.city"}, {"content_hash": "b13c3c7bedd88b0fd9242a474445cd38d6b8d9c2f7024deb9fa78d8b3136ee55", "fetched_at": "2026-08-29T10:18:32.732942+00:00", "kind": "registry_npm", "missing": false, "url": "https://registry.npmjs.org/tangram"}], "taxonomy_version": 1}, "topics": {"kind": "observed", "observed_at": "2026-08-28T04:06:37.982927+00:00", "source": "github"}, "urls": {"kind": "observed", "observed_at": "2026-08-28T04:06:37.982927+00:00", "source": "github"}, "use_cases": {"confidence": null, "enriched_at": "2026-08-30T02:37:47.487211+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "8dbfdf1c2ead49bfc1ddaff1ebf2f9ba3bedcda76bc6ebf70a7e52adef3229fc", "fetched_at": "2026-08-28T04:06:37.982927+00:00", "kind": "readme", "missing": false, "url": "https://github.com/tangrams/tangram"}, {"content_hash": "db84b2e3e65dce4120d977296de5a748830a89b4d3c003fea77997b914e9c927", "fetched_at": "2026-08-29T10:18:32.724027+00:00", "kind": "homepage", "missing": false, "url": "https://tangram.city"}, {"content_hash": "b13c3c7bedd88b0fd9242a474445cd38d6b8d9c2f7024deb9fa78d8b3136ee55", "fetched_at": "2026-08-29T10:18:32.732942+00:00", "kind": "registry_npm", "missing": false, "url": "https://registry.npmjs.org/tangram"}], "taxonomy_version": 1}, "what_it_is": {"confidence": null, "enriched_at": "2026-08-30T02:37:47.487211+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "8dbfdf1c2ead49bfc1ddaff1ebf2f9ba3bedcda76bc6ebf70a7e52adef3229fc", "fetched_at": "2026-08-28T04:06:37.982927+00:00", "kind": "readme", "missing": false, "url": "https://github.com/tangrams/tangram"}, {"content_hash": "db84b2e3e65dce4120d977296de5a748830a89b4d3c003fea77997b914e9c927", "fetched_at": "2026-08-29T10:18:32.724027+00:00", "kind": "homepage", "missing": false, "url": "https://tangram.city"}, {"content_hash": "b13c3c7bedd88b0fd9242a474445cd38d6b8d9c2f7024deb9fa78d8b3136ee55", "fetched_at": "2026-08-29T10:18:32.732942+00:00", "kind": "registry_npm", "missing": false, "url": "https://registry.npmjs.org/tangram"}], "taxonomy_version": 1}, "when_to_avoid": {"confidence": null, "enriched_at": "2026-08-30T02:37:47.487211+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "8dbfdf1c2ead49bfc1ddaff1ebf2f9ba3bedcda76bc6ebf70a7e52adef3229fc", "fetched_at": "2026-08-28T04:06:37.982927+00:00", "kind": "readme", "missing": false, "url": "https://github.com/tangrams/tangram"}, {"content_hash": "db84b2e3e65dce4120d977296de5a748830a89b4d3c003fea77997b914e9c927", "fetched_at": "2026-08-29T10:18:32.724027+00:00", "kind": "homepage", "missing": false, "url": "https://tangram.city"}, {"content_hash": "b13c3c7bedd88b0fd9242a474445cd38d6b8d9c2f7024deb9fa78d8b3136ee55", "fetched_at": "2026-08-29T10:18:32.732942+00:00", "kind": "registry_npm", "missing": false, "url": "https://registry.npmjs.org/tangram"}], "taxonomy_version": 1}, "when_to_choose": {"confidence": null, "enriched_at": "2026-08-30T02:37:47.487211+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "8dbfdf1c2ead49bfc1ddaff1ebf2f9ba3bedcda76bc6ebf70a7e52adef3229fc", "fetched_at": "2026-08-28T04:06:37.982927+00:00", "kind": "readme", "missing": false, "url": "https://github.com/tangrams/tangram"}, {"content_hash": "db84b2e3e65dce4120d977296de5a748830a89b4d3c003fea77997b914e9c927", "fetched_at": "2026-08-29T10:18:32.724027+00:00", "kind": "homepage", "missing": false, "url": "https://tangram.city"}, {"content_hash": "b13c3c7bedd88b0fd9242a474445cd38d6b8d9c2f7024deb9fa78d8b3136ee55", "fetched_at": "2026-08-29T10:18:32.732942+00:00", "kind": "registry_npm", "missing": false, "url": "https://registry.npmjs.org/tangram"}], "taxonomy_version": 1}}, "score": {"components": {"activity": 66, "longevity": 100, "rhythm": 8}, "computed_at": "2026-09-03T02:20:16.233290+00:00", "flags": [], "formula": "round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)", "inputs": {"age_days": 4721, "days_push": 206, "days_rel": 624, "gap_med": null, "n_releases_24m": 1}, "score": 52, "version": 2}, "staleness": {"enrichment_outdated": false, "low_confidence": false, "scrape_days": 9, "stale_scrape": false}}