2a:null 2b:["$","title",null,{"children":"Graticule labels (stereographic) | D3 | Observable"}] 30:T407,map = { const clipIn = DOM.uid(); const clipOut = DOM.uid(); return html``; }31:[{"id":"efcaaf9f0b260e09b6afeaee6dbc1b91ad45f3328561cd67eb16a1754096c1095f70d284acdc4b004910e89265b60eba2706334e0dc84ded38fd9209083d4cef","href":"https://static.observableusercontent.com/files/efcaaf9f0b260e09b6afeaee6dbc1b91ad45f3328561cd67eb16a1754096c1095f70d284acdc4b004910e89265b60eba2706334e0dc84ded38fd9209083d4cef","name":"land-50m.json","type":"application/octet-stream","lastModified":1572391621746.685,"size":545534}] 2e:{"id":"9067ae08f51d55f2","slug":"graticule-labels-stereographic","title":"Graticule labels (stereographic)","thumbnail":"b0291ecb2f2bf95f5214075ec110086f575dea8833985cde8318a426db8e1ea2","access_level":"public","create_time":"$D2019-03-15T20:53:32.040Z","update_time":"$D2023-08-01T14:38:49.460Z","view_time":null,"first_public_time":"$D2019-03-15T21:25:46.844Z","fork":{"id":"f19b633c57a36f56","slug":"graticule-labels","title":"Graticule Labels","owner":{"id":"863951e3ebe4c0ae","login":"d3","name":"D3"}},"stars":14,"starred":false,"owner":{"type":"team","id":"863951e3ebe4c0ae","login":"d3","name":"D3","avatar_url":"https://avatars-next.observableusercontent.com/5af16e327a90b2873351dda8a596c0d2d3bf954f64523deefe80177c9764d0f7","tier":"pro_2024"},"version":294,"publish_version":null,"role":null,"authored":false,"authors":[{"type":"individual","id":"074c414ad1d825f5","login":"mbostock","name":"Mike Bostock","avatar_url":"https://avatars-next.observableusercontent.com/7dbba99ced40bd5ab8013c99b1a11da61231bce321ba1148a9d16ad0f121550a","tier":null}],"members":[{"type":"team","id":"863951e3ebe4c0ae","login":"d3","name":"D3","avatar_url":"https://avatars-next.observableusercontent.com/5af16e327a90b2873351dda8a596c0d2d3bf954f64523deefe80177c9764d0f7","tier":"pro_2024","role":"editor"}],"comments":[],"custom_thumbnail":false,"trashed":false,"subscribed":null,"forks":19,"collection":{"id":"cabc4d5681f3b2dc","slug":"d3-geo","title":"d3-geo","owner":{"id":"863951e3ebe4c0ae","login":"d3","name":"D3"}},"type":"notebook","body":{"title":"Graticule labels (stereographic)","cells":[{"id":1,"value":"

Graticule labels (stereographic)

D3 › Gallery

\n\n# Graticule labels (stereographic)","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined"},{"id":11,"value":"$30","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":207,"value":"formatLatitude = y => `${Math.abs(y)}°${y < 0 ? \"S\" : \"N\"}`","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":210,"value":"formatLongitude = x => `${Math.abs(x)}°${x < 0 ? \"W\" : \"E\"}`","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":111,"value":"path = d3.geoPath(projection)","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":265,"value":"longitude = -100","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":16,"value":"projection = d3.geoStereographic().rotate([-longitude, 0])","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":255,"value":"offset = ([x, y], k) => {\n const [cx, cy] = projection.translate();\n const dx = x - cx, dy = y - cy;\n k /= Math.hypot(dx, dy);\n return [x + dx * k, y + dy * k];\n}","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":283,"value":"marginTop = 30","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":285,"value":"marginRight = 40","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":155,"value":"marginBottom = 30","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":287,"value":"marginLeft = 40","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":75,"value":"height = {\n const [[x0, y0], [x1, y1]] = d3.geoPath(projection.fitWidth(width, outline)).bounds(outline);\n const dx = x1 - x0;\n const k = (dx - marginLeft - marginRight) / dx;\n const dy = (y1 - y0) * k + marginBottom + marginTop;\n projection.scale(projection.scale() * k);\n projection.translate([(dx + marginLeft - marginRight) / 2, (dy + marginTop - marginBottom) / 2]);\n projection.precision(0.2);\n return Math.round(dy);\n}","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":79,"value":"outline = d3.geoCircle().radius(90).center([longitude, 0])()","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":36,"value":"graticule = d3.geoGraticule10()","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":38,"value":"land = topojson.feature(world, world.objects.land)","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":7,"value":"world = FileAttachment(\"land-50m.json\").json()","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"}],"files":"$W31","stdlib":"1","titling":"auto"}} 2f:"$2e:body"