{"id":1789121,"date":"2020-08-17T09:28:54","date_gmt":"2020-08-17T13:28:54","guid":{"rendered":"https:\/\/www.maproomblog.com\/?p=1789121"},"modified":"2020-08-17T09:28:54","modified_gmt":"2020-08-17T13:28:54","slug":"comparing-map-projections","status":"publish","type":"post","link":"https:\/\/www.maproomblog.com\/2020\/08\/comparing-map-projections\/","title":{"rendered":"Comparing Map Projections"},"content":{"rendered":"

\"Comparing<\/a><\/p>\n

Kai\u2019s Comparing Map Projections<\/a> mashes up two code blocks by Mike Bostock: Map Projections Distortions<\/a> is a visualization of the types of distortion inherent to each projection; Projection Transitions<\/a> morphs between projections. Combining the two is a neat trick. Refreshing to see the usual two combatants excluded. [Maps Mania<\/a>]<\/p>\n","protected":false},"excerpt":{"rendered":"

Kai\u2019s Comparing Map Projections mashes up two code blocks by Mike Bostock: Map Projections Distortions is a visualization of the types of distortion inherent to each projection; Projection Transitions morphs between projections. Combining the two… More<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"link","meta":{"autoblue_enabled":true,"autoblue_custom_message":"","autoblue_shares":[],"autoblue_post_url":"","_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[29],"tags":[616,52,571],"class_list":["post-1789121","post","type-post","status-publish","format-link","hentry","category-cartography","tag-code","tag-data-visualizations","tag-map-projections","post_format-post-format-link"],"jetpack_featured_media_url":"","jetpack-related-posts":[{"id":1805841,"url":"https:\/\/www.maproomblog.com\/2022\/01\/map-projection-explorer\/","url_meta":{"origin":1789121,"position":0},"title":"Map Projection Explorer","author":"Jonathan Crowe","date":"6 January 2022","format":"link","excerpt":"Stefan Reifenberg\u2019s Map Projection Explorer is another interactive tool that morphs a world map into the projection of your choice. The availability of data from the d3.js library seems to be enabling a lot of them. [r\/Maps] Previously: Map Projection Playground; Comparing Map Projections.","rel":"","context":"In "Cartography"","block_context":{"text":"Cartography","link":"https:\/\/www.maproomblog.com\/category\/cartography\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":4283,"url":"https:\/\/www.maproomblog.com\/2017\/04\/the-74-on-boston-schools-and-the-peters-map\/","url_meta":{"origin":1789121,"position":1},"title":"The 74 on Boston Schools and the Peters Map","author":"Jonathan Crowe","date":"18 April 2017","format":"link","excerpt":"Education news website\u00a0The 74 has its own\u00a0coverage of the Boston schools\/Peters map\u00a0controversy (is it safe to call it a controversy?), with extensive quotes from Matthew Edney, who does not mince words.\u00a0(Comparing both projections to Comic Sans? Ouch.) [Caitlin Dempsey] Previously: More on Boston Schools and the Peters Map;\u00a0The Peters Map\u2026","rel":"","context":"In "Cartography"","block_context":{"text":"Cartography","link":"https:\/\/www.maproomblog.com\/category\/cartography\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":1810762,"url":"https:\/\/www.maproomblog.com\/2022\/12\/projection-connections-a-genealogy-of-map-projections\/","url_meta":{"origin":1789121,"position":2},"title":"Projection Connections: A Genealogy of Map Projections","author":"Jonathan Crowe","date":"22 December 2022","format":"link","excerpt":"Fresh off of producing a (now sold-out) line of map projection trading cards, Daniel Huffman has produced a 16\u00d724-inch poster showing the surprisingly close and entangled relationships between the various map projections. I first learned about a couple of these connections several years ago. I don\u2019t quite remember how or\u2026","rel":"","context":"In "Cartography"","block_context":{"text":"Cartography","link":"https:\/\/www.maproomblog.com\/category\/cartography\/"},"img":{"alt_text":"Projection Connections: a diagram showing the relationships between various map projections by Daniel Huffman","src":"https:\/\/i0.wp.com\/www.maproomblog.com\/xq\/wp-content\/uploads\/2022\/12\/projection-connections-1024x683.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.maproomblog.com\/xq\/wp-content\/uploads\/2022\/12\/projection-connections-1024x683.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.maproomblog.com\/xq\/wp-content\/uploads\/2022\/12\/projection-connections-1024x683.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/www.maproomblog.com\/xq\/wp-content\/uploads\/2022\/12\/projection-connections-1024x683.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":4955,"url":"https:\/\/www.maproomblog.com\/2017\/09\/tissots-indicatrix\/","url_meta":{"origin":1789121,"position":3},"title":"Tissot’s Indicatrix","author":"Jonathan Crowe","date":"26 September 2017","format":"link","excerpt":"Geo Lounge\u2019s Elizabeth Borneman has a piece on\u00a0Tissot's indicatrix, which tends to turn up in discussions of map projections. (See, for example, this piece from Vox's Johnny Harris, and the accompanying video.) And for good reason: it's a useful visualization tool. All maps distort\u2014representing a curved surface on a flat\u2026","rel":"","context":"In "Cartography"","block_context":{"text":"Cartography","link":"https:\/\/www.maproomblog.com\/category\/cartography\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.maproomblog.com\/xq\/wp-content\/uploads\/2017\/09\/tissot-robinson-1024x519.jpg?resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.maproomblog.com\/xq\/wp-content\/uploads\/2017\/09\/tissot-robinson-1024x519.jpg?resize=350%2C200 1x, https:\/\/i0.wp.com\/www.maproomblog.com\/xq\/wp-content\/uploads\/2017\/09\/tissot-robinson-1024x519.jpg?resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.maproomblog.com\/xq\/wp-content\/uploads\/2017\/09\/tissot-robinson-1024x519.jpg?resize=700%2C400 2x"},"classes":[]},{"id":4051,"url":"https:\/\/www.maproomblog.com\/2017\/03\/the-peters-projection-comes-to-bostons-public-schools\/","url_meta":{"origin":1789121,"position":4},"title":"The Peters Projection Comes to Boston’s Public Schools","author":"Jonathan Crowe","date":"20 March 2017","format":"link","excerpt":"In a development that just might\u00a0make academic cartographers pull out their remaining hair in frustration,\u00a0Boston's public schools began using the\u00a0Peters projection in social studies classes last week. The news coverage (see the\u00a0Grauniad\u2019s) is the usual straw man argument about the Mercator and the false dichotomy between it and the Peters,\u2026","rel":"","context":"In "Cartography"","block_context":{"text":"Cartography","link":"https:\/\/www.maproomblog.com\/category\/cartography\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.maproomblog.com\/xq\/wp-content\/uploads\/2017\/03\/gall-peters-wikimedia-1024x654.jpg?resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.maproomblog.com\/xq\/wp-content\/uploads\/2017\/03\/gall-peters-wikimedia-1024x654.jpg?resize=350%2C200 1x, https:\/\/i0.wp.com\/www.maproomblog.com\/xq\/wp-content\/uploads\/2017\/03\/gall-peters-wikimedia-1024x654.jpg?resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.maproomblog.com\/xq\/wp-content\/uploads\/2017\/03\/gall-peters-wikimedia-1024x654.jpg?resize=700%2C400 2x"},"classes":[]},{"id":4145,"url":"https:\/\/www.maproomblog.com\/2017\/04\/flex-projector\/","url_meta":{"origin":1789121,"position":5},"title":"Flex Projector","author":"Jonathan Crowe","date":"3 April 2017","format":"link","excerpt":"With all this recent talk about map projections,\u00a0it might be worth\u00a0pointing\u00a0out the existence of Flex Projector, a cross-platform Java application for creating map projections, now at version 1.0.6. Yes, creating: if you want to invent your own map projection and slap your own name on it, you can do that\u2026","rel":"","context":"In "Cartography"","block_context":{"text":"Cartography","link":"https:\/\/www.maproomblog.com\/category\/cartography\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.maproomblog.com\/xq\/wp-content\/uploads\/2017\/04\/flex-projector-300x244.jpg?resize=350%2C200","width":350,"height":200},"classes":[]}],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.maproomblog.com\/wp-json\/wp\/v2\/posts\/1789121","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.maproomblog.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.maproomblog.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.maproomblog.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.maproomblog.com\/wp-json\/wp\/v2\/comments?post=1789121"}],"version-history":[{"count":2,"href":"https:\/\/www.maproomblog.com\/wp-json\/wp\/v2\/posts\/1789121\/revisions"}],"predecessor-version":[{"id":1789124,"href":"https:\/\/www.maproomblog.com\/wp-json\/wp\/v2\/posts\/1789121\/revisions\/1789124"}],"wp:attachment":[{"href":"https:\/\/www.maproomblog.com\/wp-json\/wp\/v2\/media?parent=1789121"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.maproomblog.com\/wp-json\/wp\/v2\/categories?post=1789121"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.maproomblog.com\/wp-json\/wp\/v2\/tags?post=1789121"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}