2d:null 2e:["$","title",null,{"children":"Map Projection Chronology | Nikita Sharov | Observable"}] 33:T534,listChronologically = (projections) => { const data = projections.filter(d => d.year !== undefined) .map(d => { return { projection: { name: d.name, creator: d.creator, githubUrl: d.githubUrl ? d.githubUrl : `https://github.com/d3/d3-geo-projection#${d.propertyName}` }, year: { approximated: d.yearApproximated ? true : false, value: d.year } }; }) .sort((a, b) => a.year.value - b.year.value); return table(data, { sortable: true, paged: false, columns: { year: { formatter: (year) => { let text = year.approximated ? "c. " : ""; if (year.value < 0) { text += `${Math.abs(year.value)} BC`; } else { if (year.value < 1000) { text += `AD ${year.value}`; } else { text += year.value.toString(); } } return `${text}`; }, type: "number" }, projection: { formatter: (val) => { return html`${val.name} by ${val.creator}` }, title: "Projection by Creator(s)" } } }); }34:[{"id":"43e91860661a8df7b75041b27415592b6702b40aa78f742adb2855d36d2dbaeebc1ccaa9f543b29d1c75a9f626b555e0f04a12289dd63b6947eaf5b59220a504","href":"https://static.observableusercontent.com/files/43e91860661a8df7b75041b27415592b6702b40aa78f742adb2855d36d2dbaeebc1ccaa9f543b29d1c75a9f626b555e0f04a12289dd63b6947eaf5b59220a504","name":"world-map_willdey.jpg","type":"image/jpeg","lastModified":1607333370610.822,"size":704530}] 31:{"id":"5259db282d42c2b5","slug":"map-projection-chronology","title":"Map Projection Chronology","thumbnail":"940615626c2fdff93f811b6dbda24b233bea3b1ffb93a900cd7dd8b415357dbe","access_level":"public","create_time":"$D2020-12-05T12:45:55.129Z","update_time":"$D2021-02-22T10:44:18.195Z","view_time":null,"first_public_time":"$D2020-12-11T10:26:16.890Z","has_unpublished_edits":null,"fork":false,"stars":6,"starred":false,"owner":{"type":"team","id":"6c49d8d38db08400","login":"nikita-sharov","name":"Nikita Sharov","avatar_url":"https://avatars-next.observableusercontent.com/544afb614871e9f3bee546cbff7e689f2a454464b16ac434007893bde877f2df","tier":"starter_2024"},"version":792,"publish_version":792,"role":null,"authored":false,"authors":[{"type":"individual","id":"ee7c67b988c5530c","login":"nikita-sharov","name":"Nikita Sharov","avatar_url":"https://avatars-next.observableusercontent.com/544afb614871e9f3bee546cbff7e689f2a454464b16ac434007893bde877f2df","tier":null}],"members":[{"type":"individual","id":"ee7c67b988c5530c","login":"nikita-sharov","name":"Nikita Sharov","avatar_url":"https://avatars-next.observableusercontent.com/544afb614871e9f3bee546cbff7e689f2a454464b16ac434007893bde877f2df","tier":null,"role":"editor"}],"comments":[],"custom_thumbnail":false,"trashed":false,"lapsed":null,"subscribed":null,"forks":1,"collection":{"id":"c820f2af0d45ff3a","slug":"cartography","title":"Cartography","owner":{"id":"6c49d8d38db08400","login":"nikita-sharov","name":"Nikita Sharov"}},"type":"notebook","body":{"title":"Map Projection Chronology","cells":[{"id":0,"value":"md`# Map Projection Chronology\n\n

\"World — No. 1. A new and correct map of the world laid down according to the newest observations, by George Willdey, 1702. Source: davidrumsey.com

\n\n> _He who has a choice, has the doldrums._\n\nThere is an overwhelming amount of [d3-geo-projection](https://github.com/d3/d3-geo-projection)s available. Which one suits best your first map? The most recent one, incorporating the latest insights in cartography, right? Wrong! Unfortunately, there is no Chuck Norris projection. But, probably, some [appropriate ones](https://observablehq.com/@nikita-sharov/map-projection-distortion) for your (artistic?) needs.`","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":695,"value":"import {projections} from \"@nikita-sharov/map-projection-classification\"","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":406,"value":"listChronologically(projections)","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":540,"value":"md`The first known projection user was not necessarily its creator. Several projections were reinvented or adopted over time having alternate names (i.a. differing in the configuration of one another unique projection algorithm).`","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":291,"value":"md`---\n## Appendix\n`","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":404,"value":"import {table} from \"@tmcw/tables\"","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":790,"value":"$33","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":33,"value":"html``","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"}],"files":"$W34","stdlib":"1","titling":"auto"}} 32:"$31:body"