{"id":"coit-tower","name":"Coit Tower","anchor":[-122.40583382655144,37.802374163782545],"heading":0,"units":"metres","axes":"X east / Y up / Z south","minZoom":15,"detailZoom":17,"lods":{"low":{"url":"/models/coit-tower/1a9b32bd2827ee47986aa74577c31635f82c0549ae562ac641998d6b628bbb47/low.glb","bytes":226996,"sha256":"1a9b32bd2827ee47986aa74577c31635f82c0549ae562ac641998d6b628bbb47","triangles":5444,"gzip":{"url":"/models/coit-tower/1a9b32bd2827ee47986aa74577c31635f82c0549ae562ac641998d6b628bbb47/low.glb.gz","bytes":68013,"sha256":"8785a07b4aea61c11f813b32a73cd697b625c2fafcfde64b51dc3c8c2d015826","encoding":"gzip-file"}},"detail":{"url":"/models/coit-tower/572530a8d930906c0bb40d4108e117f4f8de6e24b3b24c035b662be6679730ea/detail.glb","bytes":1073836,"sha256":"572530a8d930906c0bb40d4108e117f4f8de6e24b3b24c035b662be6679730ea","triangles":24169,"gzip":{"url":"/models/coit-tower/572530a8d930906c0bb40d4108e117f4f8de6e24b3b24c035b662be6679730ea/detail.glb.gz","bytes":276480,"sha256":"648975d6b80c69510ed50e4051fabc728d1499f34913e59395277add406fcd87","encoding":"gzip-file"}}},"triangles":24169,"boundsBlenderM":[[-11.284309387207031,-11.34581470489502,0],[11.271727561950684,11.956951141357422,64]],"entranceLights":[],"replacementFootprint":{"type":"Polygon","coordinates":[[[-122.4059292,37.8024566],[-122.4058981,37.8024629],[-122.4058308,37.8024767],[-122.4058048,37.802482],[-122.4057974,37.8024594],[-122.4057613,37.8024668],[-122.4057535,37.8024432],[-122.405739,37.8024462],[-122.4057189,37.8024209],[-122.4057081,37.8023838],[-122.4057063,37.8023463],[-122.4057209,37.8023434],[-122.4057124,37.8023175],[-122.4057486,37.8023101],[-122.4057457,37.802298],[-122.4057725,37.8022842],[-122.4058194,37.8022726],[-122.405865,37.8022736],[-122.405873,37.8022847],[-122.4059055,37.8022781],[-122.405914,37.8023039],[-122.4059245,37.8023018],[-122.4059443,37.8023235],[-122.4059577,37.8023511],[-122.4059616,37.8023743],[-122.4059572,37.8024017],[-122.4059467,37.8024038],[-122.4059544,37.8024274],[-122.4059218,37.802434],[-122.4059292,37.8024566]]]},"basemapReplacement":null,"osm":{"type":"way","id":28824850,"version":28,"timestamp":"2026-01-03T23:34:54Z","url":"https://www.openstreetmap.org/way/28824850"},"additionalOsm":[],"rightsStatus":"review-required","geometryStatus":"draft","attribution":"Open Landmarks; contains © OpenStreetMap contributors, ODbL-1.0; SF Recreation & Parks city brochure and SF Planning official National Register nomination; factual dimensions and opening counts.","references":[{"title":"File:Coit Tower.JPG","author":"Edward_Z._Yang (talk) (Uploads)","license":"Public domain","licenseUrl":"https://commons.wikimedia.org/wiki/File:Coit_Tower.JPG","sourcePage":"https://commons.wikimedia.org/wiki/File:Coit_Tower.JPG","sourceSha1":"bb82d8a8b910ddd47d988b488b7e39aace22d9f8","use":"visual-reference-only","view":"Individually inspected front: 24 shallow shaft flutes, eight high arches with small triplets above and upper round-headed crown, inset pivot windows, small balustrades and phoenix/fasces panel. Ground doorway cropped; no facade heights inferred as measurements."},{"title":"File:Coit tower.JPG","author":"User: (WT-shared) PerryPlanet at  wts wikivoyage","license":"Public domain","licenseUrl":"https://commons.wikimedia.org/wiki/File:Coit_tower.JPG","sourcePage":"https://commons.wikimedia.org/wiki/File:Coit_tower.JPG","sourceSha1":"cfe22dbc4a9d95df80de35131b4253f42ac13e1b","use":"visual-reference-only","view":"Individually inspected distant side view: slender pale tapered shaft with eight tall belvedere arches, small triplets and an open upper crown. Trees obscure lower base."},{"title":"File:Coit Tower, SF.jpg","author":"Sim.sravanthi","license":"CC BY-SA 4.0","licenseUrl":"https://creativecommons.org/licenses/by-sa/4.0","sourcePage":"https://commons.wikimedia.org/wiki/File:Coit_Tower,_SF.jpg","sourceSha1":"e210f861566104c39e4c414d10cbbcda066b1281","use":"visual-reference-only","view":"Individually inspected cropped front: tapered concave fluting and upper arcade/crown; base cropped. Corroborates tower identity, not base plan."},{"title":"File:Coit Tower SF.JPG","author":"Christoph Radtke","license":"CC BY 3.0","licenseUrl":"https://creativecommons.org/licenses/by/3.0","sourcePage":"https://commons.wikimedia.org/wiki/File:Coit_Tower_SF.JPG","sourceSha1":"ef0eacea58de2881f6f7e08fef20e85db46fe02f","use":"visual-reference-only","view":"Individually inspected front including north door: paired shallow fluted entry columns, rectangular door below raised phoenix/fasces relief, three-part tower with low square base. Some lower steps are hidden."}],"aliases":[],"authors":["Open Landmarks contributors"],"artisticLicense":"CC-BY-4.0","spatialDataLicense":"ODbL-1.0","licenseScope":"CC BY applies to original artistic contributions only; ODbL applies to OSM-derived spatial data. Reference photographs retain their own licenses. Dimension evidence from https://sfrecpark.org/DocumentCenter/View/7387/CoitTowerBrochure_V5?bidId= retains Factual measurements; source documents are linked, not redistributed..","assistance":"AI-assisted architectural interpretation and procedural recipe authoring; deterministic Python/Blender export. No photographic textures.","review":{"status":"pending","reviewer":null,"checks":{}},"modelingNotes":["Actual global OSM way/28824850 (Q1107297) supplies the base outline and original height64m/ele89 tags. Five actual mapped parts supply the shaft outline at50m, low gallery roof5m, north entrance10m, central base12m and entrance surround8m. The exported overall height stays64m; ele89 is not added to geometry height.","SF Recreation & Parks city brochure https://sfrecpark.org/DocumentCenter/View/7387/CoitTowerBrochure_V5?bidId= describes total212ft=64.6176m and18in=.4572m reduction in shaft diameter. The64m OSM value is retained within the published rounding discrepancy; the brochure taper is authored as .2286m radius reduction.","SF Planning official National Register nomination https://commissions.sfplanning.org/hpcpackets/2017-015688FED.pdf section7 pages5-6 confirms eight high belvedere arches, open circular lantern, the north entry flanked by two fluted columns, three glazed sides with four ornamental columns each, pivot round windows and the phoenix/fasces relief. Its included2008 description explicitly gives24 vertical flutes. The182ft description and180ft rising-from-base description are documented alongside the212ft brochure, rather than silently altering source tags.","Individually inspected eligible Commons front photographs by Edward Z. Yang and Christoph Radtke, PerryPlanet distant view and cropped front by dfaulder identify this tower. They show the shallow concave shaft flutes, eight deep upper arches, three small openings above each big arch, higher round-headed crown openings, inset round windows and small balustrades. Images are visual references only, never textures.","Photo-guided inference: the50-58.3m belvedere,59-60.3m triplets and61-63.5m crown openings; wall thickness.65m, inset machine core radius3.15m, reduced small balusters, course seams, window divisions and abstract phoenix relief. The upper gallery and lantern openings are actual air, not dark panels. Lower doors/windows and inset pivot windows use the supported library window finish.","Both LODs retain24 flutes, all eight main arches and upper crown openings, source-registered north entrance and the glazed base. Low omits small triplet perforations, course seams and individual relief/rail detail, retaining the principal architecture. No landscape trees, murals, flag fabric or surrounding road/plaza are included."],"source":{"url":"/objects/d9e46b3bffd26970dad7cab06984a84b0424cd3b4b21fa5bb83694a4d59de6f2/source.blend.gz","bytes":607604,"sha256":"d9e46b3bffd26970dad7cab06984a84b0424cd3b4b21fa5bb83694a4d59de6f2"},"spatialSource":{"url":"/objects/b33d442042fe7581e7eafcae8b9065b55cee1a9c2e4af92a5745a7e2a811c4c5/spatial-source.json","bytes":9430,"sha256":"b33d442042fe7581e7eafcae8b9065b55cee1a9c2e4af92a5745a7e2a811c4c5"},"preview":{"url":"/objects/737fc584396c0f0c20fa237c83ed3c477454271bd26badd1e17a77ad0d2a6692/preview.webp","bytes":6898,"sha256":"737fc584396c0f0c20fa237c83ed3c477454271bd26badd1e17a77ad0d2a6692"},"previewDirection":[-0.42,0.8,-1.8],"revision":"062d46b7f2e2c2dfa1f0b8baecf235d4fb1ddf100321e05e1505b502943b1a92","publicationRevision":"936303449c791b0077c690f2556899ef7adc2186559ba8ab18b52271ceb118f5","bounds":[-122.4059616,37.8022726,-122.4057063,37.802482],"approved":false,"materialLibrary":{"schemaVersion":1,"sha256":"7afc40cf0b82b7c3c054f287817be2a37e52192aa734f187f8b20ee3277187dd","url":"/materials/7afc40cf0b82b7c3c054f287817be2a37e52192aa734f187f8b20ee3277187dd.json"},"metadata":"/assets/coit-tower/936303449c791b0077c690f2556899ef7adc2186559ba8ab18b52271ceb118f5/asset.json","validation":"/assets/coit-tower/936303449c791b0077c690f2556899ef7adc2186559ba8ab18b52271ceb118f5/validation.json"}