{"id":13195,"date":"2024-10-14T08:40:51","date_gmt":"2024-10-14T12:40:51","guid":{"rendered":"https:\/\/www.ogc.org\/?post_type=standards&#038;p=13195"},"modified":"2026-03-24T05:57:39","modified_gmt":"2026-03-24T05:57:39","slug":"cityjson","status":"publish","type":"standards","link":"https:\/\/www.ogc.org\/standards\/cityjson\/","title":{"rendered":"CityJSON"},"content":{"rendered":"<p>This community standard is a data exchange format for digital 3D models of cities and landscapes. The <a href=\"https:\/\/json.org\/\" target=\"_blank\" rel=\"noopener nofollow\">JSON<\/a>-based encoding of CityJSON implements a subset of the <a href=\"https:\/\/docs.ogc.org\/is\/20-010\/20-010.html\" target=\"_blank\" rel=\"noopener nofollow\">CityGML data model (version 3.0)<\/a> and includes a JSON-specific extension mechanism. Using JSON instead of GML allows us to compress files by a factor 6 and at the same time to simplify greatly the structure of the files.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>CityJSON is a JSON-based standard for exchanging digital 3D city and landscape models, offering a simplified encoding of the CityGML data model that enhances usability and developer workflows.<\/p>\n","protected":false},"author":1,"featured_media":19019,"parent":0,"comment_status":"closed","ping_status":"closed","template":"","format":"standard","meta":{"_acf_changed":false,"_eb_attr":"","footnotes":""},"standards-tag":[558,559],"class_list":["post-13195","standards","type-standards","status-publish","format-standard","has-post-thumbnail","hentry","standards-tag-citygml","standards-tag-cityjson"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.ogc.org\/wp-json\/wp\/v2\/standards\/13195","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ogc.org\/wp-json\/wp\/v2\/standards"}],"about":[{"href":"https:\/\/www.ogc.org\/wp-json\/wp\/v2\/types\/standards"}],"author":[{"embeddable":true,"href":"https:\/\/www.ogc.org\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ogc.org\/wp-json\/wp\/v2\/comments?post=13195"}],"version-history":[{"count":3,"href":"https:\/\/www.ogc.org\/wp-json\/wp\/v2\/standards\/13195\/revisions"}],"predecessor-version":[{"id":34534,"href":"https:\/\/www.ogc.org\/wp-json\/wp\/v2\/standards\/13195\/revisions\/34534"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.ogc.org\/wp-json\/wp\/v2\/media\/19019"}],"wp:attachment":[{"href":"https:\/\/www.ogc.org\/wp-json\/wp\/v2\/media?parent=13195"}],"wp:term":[{"taxonomy":"standards-tag","embeddable":true,"href":"https:\/\/www.ogc.org\/wp-json\/wp\/v2\/standards-tag?post=13195"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}