3e:null 3f:["$","title",null,{"children":"La variation de la température globale | elmai mohamed | Observable"}] 45:T973,function invert(d) { var shared = {}; var p = { type: "Polygon", coordinates: d3.merge(d.coordinates.map(function(polygon) { return polygon.map(function(ring) { return ring.map(function(point) { return [point[0] / (isize + 1) *360 - 180, 90 - point[1] / jsize * 180]; }).reverse(); }); })) }; // Add contact points with the antimeridian. var epsilon = 1e-5; p.coordinates = p.coordinates .map(function(ring) { ring.pop(); var r = []; for (var i = 0, l = ring.length; i < l; i++) { var p = ring[i]; if (p[0] === 180 && ring[(i+l-1)%l][0] < 180) r.push([p[0], p[1] + epsilon]); if (p[0] === -180 && ring[(i+l-1)%l][0] > -180) r.push([p[0], p[1] - epsilon]); r.push(p); if (p[0] === 180 && ring[(i+1)%l][0] < 180) r.push([p[0], p[1] - epsilon]); if (p[0] === -180 && ring[(i+1)%l][0] > -180) r.push([p[0], p[1] + epsilon]); } r.push(r[0]); return r; }); // Record the y-intersections with the antimeridian. p.coordinates.forEach(function(ring) { ring.forEach(function(p) { if (p[0] === -180 || p[0] === 180) { shared[p[1]] |= p[0] === -180 ? 1 : 2; } }); }); // Offset any unshared antimeridian points to prevent their stitching. p.coordinates.forEach(function(ring) { ring.forEach(function(p) { if ((p[0] === -180 || p[0] === 180) && shared[p[1]] !== 3) { p[0] = p[0] === -180 ? -179.9995 : 179.9995; } }); }); p = d3.geoStitch(p); // After stitching remove the shared points -- they are off // see https://github.com/d3/d3-contour/issues/25 p.coordinates = p.coordinates .map(function(ring) { ring.pop(); ring = ring .map(function(p) { var p0 = (p[0] + 180) * (isize + 1) / isize - 180; return [p0, p[1]]; }); ring = ring.filter(function(p) { return Math.abs(p[0]) < 179.9999; }); ring.push(ring[0]); return ring; }) .filter(function(ring) { return ring.length > 0; }); // If the MultiPolygon is empty, treat it as the Sphere. return p.coordinates.length ? {type: "Polygon", coordinates: p.coordinates, value: d.value} : {type: "Sphere", value: d.value}; }46:T49d,function map() { var canvas = this || DOM.canvas(width*.98, 500), context = canvas.getContext("2d"), path = d3.geoPath().projection(projection.fitExtent([[1, 1], [width-1, 500-1]], {type: "Sphere"})).context(context); const render = function() { context.clearRect(0,0,width*.98, 500); polygons.forEach(p => { context.beginPath(), path(p), context.fillStyle = color(p.value), context.fill(), context.strokeStyle = 'grey', context.lineWidth = 0.1, context.stroke(); }); context.beginPath(), path(d3.geoGraticule()()), context.lineWidth = 0.2, context.strokeStyle = 'black', context.stroke(); context.beginPath(), path(land), context.lineWidth = 1.5, context.strokeStyle = 'black', context.stroke() context.beginPath(), path({type: "Sphere"}), context.lineWidth = 1.5, context.strokeStyle = 'rgba(0,0,0,.5)', context.stroke(); } if (d3.geoInertiaDrag) d3.geoInertiaDrag(d3.select(canvas).style('cursor', 'move'), null, projection) var timer = d3.timer(render); invalidation.then(() => (timer.stop(), timer = null, d3.select(canvas).on(".drag", null))); return canvas; }47:[] 43:{"id":"a7e88e71af8d0fdb","slug":null,"title":"La variation de la température globale","thumbnail":"146b4f30e748e4ac39682741a60269573cd100978bf36d4b08807f1bc2bc5371","access_level":"public","create_time":"$D2023-03-05T13:09:40.155Z","update_time":"$D2023-03-05T20:00:13.726Z","view_time":null,"first_public_time":"$D2023-03-05T13:09:40.155Z","has_unpublished_edits":null,"fork":{"id":"a783de20523ecca5","slug":null,"title":"Untitled","owner":{"id":"c5cc7f8378954558","login":"elmaimohamed638","name":"elmai mohamed"}},"stars":0,"starred":false,"owner":{"type":"team","id":"c5cc7f8378954558","login":"elmaimohamed638","name":"elmai mohamed","avatar_url":"https://avatars-next.observableusercontent.com/98e3d71f648d9a13751658776e1f0bc7c90d39f627d117a6bd96809901e6dc8e","tier":"starter_2024","bio":"","following":false},"version":136,"publish_version":null,"role":null,"authored":false,"authors":[{"type":"individual","id":"b02e82c7ff423f22","login":"elmaimohamed638","name":"elmai mohamed","avatar_url":"https://avatars-next.observableusercontent.com/98e3d71f648d9a13751658776e1f0bc7c90d39f627d117a6bd96809901e6dc8e","tier":null,"bio":"","following":false}],"members":[{"type":"individual","id":"b02e82c7ff423f22","login":"elmaimohamed638","name":"elmai mohamed","avatar_url":"https://avatars-next.observableusercontent.com/98e3d71f648d9a13751658776e1f0bc7c90d39f627d117a6bd96809901e6dc8e","tier":null,"role":"editor"}],"comments":[],"custom_thumbnail":false,"trashed":false,"lapsed":null,"subscribed":null,"forks":0,"collection":null,"type":"notebook","body":{"titling":"auto","title":"La variation de la température globale","cells":[{"id":0,"value":"# La variation de la température globale","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"","database":"$undefined"},{"id":132,"value":"d3 = require(\"d3-selection@1\", \"d3-geo@1\", \"d3-format@1\", \"d3-scale-chromatic@1\", \"d3-scale@2\", \"d3-interpolate@1\", \"d3-contour@1\", \"d3-array@2\", \"d3-fetch@1\", \"d3-geo-projection@2\", \"d3-timer@1\", \"d3-inertia@0.1\")","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":116,"value":"dashboard2 = html` \n \n \n \n \n \n

\n ${viewof select}\n

\n ${viewof projName}\n

\n ${viewof toggle}\n

\n ${legend2}\n

\n
\n \n

`","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":127,"value":"viewof dataSource = radio({\n title: 'Choisir la source de donnée',\n description: '',\n options: sources.map((d,i) => (d.value = i, d)),\n value: 0\n})","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":10,"value":"\nviewof select = Scrubber(d3.range(23900,-100,-200), {\n delay: 1000,\n autoplay: false,\n initial: 0,\n loop: false,\n format: (select) => \"Age: \" + (select + 100) + \" - \" + (select - 100) + \" yr BP\",\n alternate: false\n})","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":12,"value":"viewof toggle = Inputs.toggle({value: \"False\", label: md`
`})","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":14,"value":"viewof projName = radio({\n title: \"Chosir le type de projection\",\n description: \"\",\n options: [\n { label: \"Orthographique\", value: \"ortho\" },\n { label: \"Équirectangulaire\", value: \"equirectangular\" },\n { label: \"collin\", value: \"hill\" },\n { label: \"Terre égal\", value: \"equalearth\" },\n { label: \"AzEqualArea\", value: \"azequalarea\" }\n ],\n value: \"ortho\"\n})","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":16,"value":"legend2 = Legend(d3.scaleDiverging(t=>d3.interpolateRdBu(1-t)).domain([-55, 0, 55]), {\n title: \"Surface air temperature (SAT) at reference height (°C)\",\n tickFormat: (d) => `${d}°C`,\n tickSize: 3,\n width: 440,\n height: 55,\n ticks: 10\n})","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":18,"value":"{ \n while (true) {\n var p = projection.rotate().map(d3.format(\".2f\"));\n yield md`Angles: λ = ${p[0]}, φ = ${p[1]}, γ = ${p[2]}`\n }\n}","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":22,"value":"netcdf = require('https://unpkg.com/netcdfjs@0.3.1/dist/netcdfjs.min.js')","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":24,"value":"sources = [\n {src: \"navy_winds_2.nc\", variable: \"UWND\", label: \"Winds UWND\"},\n {src: \"navy_winds_2.nc\", variable: \"VWND\", label: \"Winds VWND\"},\n {src: \"etopo60_2.nc\", variable: \"ROSE\", label: \"Topography\"},\n {src: \"temp.nc\", variable: \"TEMP\", preprocess: true, label: \"Ocean temperatures\"},\n]","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":26,"value":"source = sources[dataSource]","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":28,"value":"// WND values are -1000000 for Earth and there is a 160° shift\nfunction preprocessWnd(values) {\n values = values.map(d => d < -1e4 ? -3 : d);\n for (var j=0; j topology.arcs[r[0]].length > 2);\n var p = topojson.feature(topology, topology.objects.polygon);\n p.value = polygon.value;\n return p;\n }","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":50,"value":"$46","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":52,"value":"color =toggle? d3.scaleDiverging([-17, 0, 17],d3.interpolateRdBu): d3.scaleDiverging([55, 0, -55],d3.interpolateRdBu)//.domain(d3.extent(values))\t\t// https://github.com/d3/d3-scale-chromatic\n// .domain(d3.extent(values))","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":54,"value":"color.domain()","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":56,"value":"projection = {\n switch (projName) {\n case \"ortho\":\n var p = d3.geoOrthographic().precision(0.1);\n d3.timer(_ =>\n p.rotate([p.rotate()[0] + 0.1, p.rotate()[1], p.rotate()[2] || 0])\n );\n return p;\n case \"hill\":\n return d3.geoHill();\n case \"azequalarea\":\n return d3.geoAzimuthalEqualArea();\n case \"equalearth\":\n return d3.geoEqualEarth().rotate([0, 0]);\n case \"equirectangular\":\n default:\n return d3.geoEquirectangular();\n }\n}","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":58,"value":"topojson = require('topojson')","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":60,"value":"land = {\n const world = await d3.json(\"https://unpkg.com/world-atlas@1/world/110m.json\");\n return topojson.feature(world, world.objects.land);\n}","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":64,"value":"import {radio} from \"@jashkenas/inputs\"","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":67,"value":"viewof sat = csvInput({\n initialUrl: \"https://cadasa.github.io/sat.txt\",\n})","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":69,"value":"sat.data","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":71,"value":"Inputs.table(sat.data)","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":73,"value":"import {csvInput} from \"@bcardiff/csv-input\"","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":77,"value":"import {Legend, Swatches} from \"@d3/color-legend\"","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":80,"value":"import { Scrubber } from \"@mbostock/scrubber\"","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":84,"value":"sat_sel = new Float32Array((sat.data.filter(d => d.age ==select).map((d) => (d.value = +d.lon >= 180.0? +d.lon - 180.0: +d.lon + 180.0, d)).map(d => [+d.lat, d.value, +d.sat])).sort((a, b) => a[0] - b[0] || a[1] - b[1]).map(d =>+d[2]))","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":88,"value":"sat100 = new Float32Array((sat.data.filter(d => d.age ==100).map((d) => (d.value = +d.lon >= 180.0? +d.lon - 180.0: +d.lon + 180.0, d)).map(d => [+d.lat, d.value, +d.sat])).sort((a, b) => a[0] - b[0] || a[1] - b[1]).map(d =>+d[2]))","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":90,"value":"values = toggle? sat_sel.map((d, i) => sat100[i] - d): sat_sel","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"}],"files":"$W47","stdlib":"1"}} 44:"$43:body"