2c:null 2d:["$","title",null,{"children":"Untitled | Adam Thomas | Observable"}] 32:T7f9,upset = { const set = new DisjointSet( delaunay.points.length/2, (s1, s2, edge) => rework([s1,s2],edge), (p_index) =>{ const id = DOM.uid('community').id; const p = new Set([p_index]); const n = 1; const colour = d3.interpolateSpectral(d3.randomUniform()()); const o = new Set(inedgeSets[p_index]); const i = new Set([]); const q = (k[p_index]/(2*m))**2 return {id,p,n,colour,o,i,q}; } ) function cost(e) { if(set.isConnected(delaunay.triangles[e],delaunay.triangles[nextHalfedge(e)])) return Infinity; const propsA = set.subsetProps(delaunay.triangles[e]); const propsB = set.subsetProps(delaunay.triangles[nextHalfedge(e)]); if(!propsA || !propsB) return Infinity; return -(propsA.q + propsB.q - rework([propsA,propsB],e).q); } set.queue = PQ.create(); d3.map(delaunay.halfedges,(j,i)=> (j < 0) ? undefined : PQ.queue(set.queue,i,cost(i)) ); set.count = 0; while (set.numSubsets() > 300 && !PQ.isEmpty(set.queue) && set.count < 200) { if( set.count % 100 == 0 ) yield set; set.count++; const e = PQ.dequeue(set.queue); const propsA = set.subsetProps(delaunay.triangles[e]); const propsB = set.subsetProps(delaunay.triangles[nextHalfedge(e)]); if(!propsA || !propsB) continue; const propsC = set.subsetProps(set.union(delaunay.triangles[e],delaunay.triangles[nextHalfedge(e)],e)); d3.map( propsC.newInside, e => { try{PQ.delete(set.queue,delaunay.halfedges[e])} catch {}; } ) d3.map( propsC.o, e => { try{PQ.delete(set.queue,e)} catch {}; const c = cost(e); if(isFinite(c)) PQ.queue(set.queue,e,c); if(delaunay.halfedges[e]>0) { const j = delaunay.halfedges[e]; try{PQ.delete(set.queue,j)} catch {}; const c = cost(j); if(isFinite(c)) PQ.queue(set.queue,j,c); } } ); } return set; }33:Td3b,viewof selection = { let histo = d3.histogram().thresholds(50); const value = histo(df) const Y = d3.scaleSymlog(d3.extent(value,d=>d.length),[height-margin,margin]).constant(10000); const X = d3.scaleLinear([value.at(0).x0,value.at(-1).x1],[margin,width-margin]); const yAxis = d3.axisLeft(Y); const xAxis = d3.axisBottom(X); const svg = d3.create('svg').attr("width",width).attr("height",height); const gY = svg.append('g') .attr("class", "axis axis--y") .attr('transform',`translate(${margin},0)`) .call(yAxis); const gX = svg.append('g') .attr("class", "axis axis--x") .attr('transform',`translate(0,${height-margin})`) .call(xAxis); const zoom = d3.zoom() .translateExtent([[margin, 0], [width -margin, 0]]) .filter(filterZoom) .on("start", zoomStart) .on("end",zoomEnd) .on("zoom", zoomed); svg.call(zoom) const brushed = ({selection}) => { const rescaledX = d3.zoomTransform(svg.node()).rescaleX(X); if (selection === null) { bars.style("fill", 'lightgrey'); } else { const [x0, x1] = selection.map(rescaledX.invert); bars.style("fill", d => d.x1 >= x0 && d.x0 <= x1 ? Z((d.x0+d.x1)/2) : 'lightgrey'); } svg.property('value',selection.map(rescaledX.invert)); svg.dispatch('input'); } const g = svg.append('g') const bars = g.selectAll('rect') .data(histo(df)) .join('rect') .attr('class','bars') .style('fill',d=> Z((d.x0+d.x1)/2)) .attr('x',d=>X(d.x0)) .attr('width',d=>X(d.x1)-X(d.x0)) .attr('y',d=>Y(d.length)) .attr('height',d=>Y(0)-Y(d.length)); function filterBrush(e) { const xLocal = xAxis.scale().invert(d3.pointer(e)[0]); const forMe = e.ctrlKey || ( e.type!=='wheel' && ( xLocal >= svg.property("value")[0]-10 && xLocal <= svg.property("value")[1]+10 ) ); if(forMe) e.preventDefault(); return forMe; } const brush = d3.brushX() .filter(filterBrush) .on('start brush end',brushed) .extent([[margin,margin],[width-margin,height-margin]]); g.call(brush) g.call(brush.move,[0,0]) function filterZoom(e) { const xLocal = xAxis.scale().invert(d3.pointer(e)[0]); const forMe = e.type==='wheel' || !( e.ctrlKey || ( xLocal >= svg.property("value")[0]-10 && xLocal <= svg.property("value")[1]+10 ) ); e.preventDefault(); return forMe; } let oldSelection = [0,0] function zoomStart({transform}) { oldSelection = d3.brushSelection(g.node()).map((x)=>transform.invertX(x)) } function zoomed({ transform }) { g.call(brush.move,oldSelection.map((x)=>transform.applyX(x))) gX.call(xAxis.scale(transform.rescaleX(X))); bars .attr('x',d=>transform.rescaleX(X)(d.x0)) .attr('width',d=>transform.rescaleX(X)(d.x1)-transform.rescaleX(X)(d.x0)) } function zoomEnd({transform}) { const rescaledX = transform.rescaleX(X) histo.domain(rescaledX.domain()); g.selectAll('rect.bars') .data(histo(df)) .join('rect') .attr('class','bars') .attr('x',d=>rescaledX(d.x0)) .attr('width',d=>rescaledX(d.x1)-rescaledX(d.x0)) .attr('y',d=>Y(d.length)) .attr('height',d=>Y(0)-Y(d.length)); g.call(brush.move,oldSelection.map((x)=>transform.applyX(x))); } return svg.node(); }34:T662,chart = { function enter(svg) { const g = svg.append('g'); g.append('g').attr('class','surface'); g.append('g').attr('class','delaunay'); g.append('g').attr('class','voronoi'); svg.call( d3.zoom().on("zoom",({transform}) => { g.attr('transform',transform).style('stroke-width',1/transform.k); }) ) svg.select('g.surface') .selectAll('path') .data(cellPolygonPaths) .join('path') .attr('d',d=>d) .append('title') .text((d,i)=>i+' : '+H[i]); svg .select('g.delaunay') .selectAll('line') .data([]??d3.range(delaunay.halfedges.length)) .join( enter => enter.append('line').call(delaunyLine), update => update, exit => exit.remove() ) svg .select('g.voronoi') .style('stroke','grey') .selectAll('line') .data([]??d3.range(delaunay.halfedges.length)) .join( enter => enter.append('line').call(voronoiLine), update => update, exit => exit.remove() ) return svg; } const svg = this ? d3.select(this) : enter(d3.create('svg').attr("width", width).attr("height", height)); svg.select('g.surface') .selectAll('path') //.style('fill',(d,i)=> df[i] >= selection[0] && df[i] <= selection[1] ? Z(df[i]) : 'lightgrey') .style('fill',(d,i)=>lcolor(communities[i])) //.style('fill',(d,i)=>d3.scaleDiverging([7,0,-7],d3.interpolateRdBu)(H[i])); svg .select('g.delaunay') .selectAll('line') .style('stroke',(d,i)=>d3.scaleSequentialSymlog([1,0],d3.interpolateSpectral).constant(.001)(ed[i])); return svg.node(); }35:[{"id":"1f5ad9e9414e71425ce059dd47e5996ebcb5d4a89a8f6e2d317580d22fd9d1fe1ea437ec69ceb3dd60ccf11da1e63494553826dd97abc64422f9076c8cd99f2a","href":"https://static.observableusercontent.com/files/1f5ad9e9414e71425ce059dd47e5996ebcb5d4a89a8f6e2d317580d22fd9d1fe1ea437ec69ceb3dd60ccf11da1e63494553826dd97abc64422f9076c8cd99f2a","name":"Test_coordinates_21Aug17.csv","type":"text/csv","lastModified":1674268261553.602,"size":67030}] 30:{"id":"ec47b567bfc54d78","slug":null,"title":"","thumbnail":"49e3b8e7b5c25c76853ac31b4ed41e895e2facb91573182f4e68e995d0ccb899","access_level":"public","create_time":"$D2023-01-21T02:26:38.005Z","update_time":"$D2024-12-19T04:44:11.691Z","view_time":null,"first_public_time":"$D2023-01-21T02:26:38.005Z","has_unpublished_edits":null,"fork":{"id":"bd116742b1f91cf4","slug":"simple-d3","title":"Simple D3","owner":{"id":"f35c755083683fe5","login":"observablehq","name":"Observable"}},"stars":0,"starred":false,"owner":{"type":"team","id":"797bce4a19d1218c","login":"devdsp","name":"Adam Thomas","avatar_url":"https://avatars-next.observableusercontent.com/086762d85c863b3bffce6f78bf73bc973d9cb8f1a1ae706be18bb72dcc97da1f","tier":"starter_2024"},"version":2331,"publish_version":null,"role":null,"authored":false,"authors":[{"type":"individual","id":"ef340ccc893d0793","login":"devdsp","name":"Adam Thomas","avatar_url":"https://avatars-next.observableusercontent.com/086762d85c863b3bffce6f78bf73bc973d9cb8f1a1ae706be18bb72dcc97da1f","tier":null}],"members":[{"type":"individual","id":"ef340ccc893d0793","login":"devdsp","name":"Adam Thomas","avatar_url":"https://avatars-next.observableusercontent.com/086762d85c863b3bffce6f78bf73bc973d9cb8f1a1ae706be18bb72dcc97da1f","tier":null,"role":"editor"}],"comments":[],"custom_thumbnail":false,"trashed":false,"lapsed":null,"subscribed":null,"forks":0,"collection":null,"type":"notebook","body":{"title":"","cells":[{"id":1278,"value":"compose = (...arr) => d3.reduce(arr,(g,f) => (...args) => f(g(...args)))","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":1276,"value":"vorEdgeMid = d3.map(\n delaunay.halfedges,\n compose(\n (j,i) => [Math.floor(i/3),Math.floor(j/3)],\n ([pi1,pi2]) => [voronoi.circumcenters.slice(pi1*2,pi1*2+2),voronoi.circumcenters.slice(pi2*2,pi2*2+2)],\n d3.transpose,\n d => d3.map(d,v => [...v,v[1]-v[0]]),\n d3.transpose,\n ([p1,p2,d]) => [p1,p2,d, d ? 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[]);\n const i = d3.union(a.i, c.i,movers.get(true)??[]);\n const q = sigIn/(2*m) - (sigTot/(2*m))**2;\n \n return {n, i, p, o, q, sigIn, sigTot, newInside}\n },\n {i:[],p:[],o:[],n:0,sigIn:0,sigTot:0}\n )\n);","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":1722,"value":"detailed = Louvain.detailed(g,{resolution:4})","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":1678,"value":"communities = detailed.communities","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":698,"value":"f = d3.map(d3.range(points.length),a=>d3.mean(nring(5)(a),b=>1/dist(a)(b)))","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":2080,"value":"facet = A","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":2035,"value":"bounds = d3.extent(df)","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":2040,"value":"Z = d3.scaleSequentialSymlog(d3.interpolateSpectral).domain(bounds).constant(.01)","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":2111,"value":"selection","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":1939,"value":"$33","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":14,"value":"$34","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":1812,"value":"delaunyLine = line => line\n .attr(\"x1\", e => transformX(delaunay.points[delaunay.triangles[e]*2]))\n .attr(\"y1\", e => transformY(delaunay.points[delaunay.triangles[e]*2+1]))\n .attr(\"x2\", e => transformX(delaunay.points[delaunay.triangles[delaunay.halfedges[e]]*2]))\n .attr(\"y2\", e => transformY(delaunay.points[delaunay.triangles[delaunay.halfedges[e]]*2+1]));","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":1814,"value":"voronoiLine = line => line \n .attr(\"x1\", e => transformX(voronoi.circumcenters[Math.floor(e/3)*2]))\n .attr(\"y1\", e => transformY(voronoi.circumcenters[Math.floor(e/3)*2+1]))\n .attr(\"x2\", e => transformX(voronoi.circumcenters[Math.floor(delaunay.halfedges[e]/3)*2]))\n .attr(\"y2\", e => transformY(voronoi.circumcenters[Math.floor(delaunay.halfedges[e]/3)*2+1]))","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":1662,"value":"Louvain = import('https://cdn.skypack.dev/graphology-communities-louvain@2.0.1?min').then(d=>d.default)","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":1668,"value":"graphology = require(\"graphology\")","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":1671,"value":"g = {\n const g = new graphology.UndirectedGraph();\n d3.map(d3.range(points.length),i=>g.addNode(i));\n d3.map(delaunay.halfedges,(j,i)=> j > i ? g.addEdgeWithKey(i,...d3.permute(delaunay.triangles,[i,j]),{weight:ed[i]}) : undefined)\n d3.map(g.filterNodes(node=>!g.someNeighbor(node,_=>true)),d=>g.dropNode(d))\n return g;\n}","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":1694,"value":"lcolor = d3.scaleSequential(d3.extent(Object.values(communities)),d3.interpolateSpectral)","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":1381,"value":"cellPolygons = Array.from(d3.range(points.length),i=>voronoi.cellPolygon(i))","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":1611,"value":"cellPolygonPaths = d3.map(cellPolygons,v => v? d3.line().x(([x,_])=>transformX(x)).y(([_,y])=>transformY(y))(v) : undefined)","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":1130,"value":"divergingScale = d3.scaleDivergingSymlog([-100,0,100],[0,.5,1]).clamp(true)","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":688,"value":"ed = d3.map(delEdgeLengths,d=>1/d);//d3.map(delaunay.halfedges,(e,i) => ν[i]*(f[delaunay.triangles[i]]-f[delaunay.triangles[e]])**2)","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":1396,"value":"delEdgeLengths = d3.map(\n delaunay.halfedges,\n (j,i) => j < 0 \n ? undefined \n : Math.hypot(\n delaunay.points[delaunay.triangles[i]*2]-delaunay.points[delaunay.triangles[j]*2],\n delaunay.points[delaunay.triangles[i]*2+1]-delaunay.points[delaunay.triangles[j]*2+1]\n )\n)","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":1413,"value":"vorEdgeLengths = d3.map(\n delaunay.halfedges,\n (e,i) => e < 0\n ? undefined\n : Math.hypot(\n voronoi.circumcenters[Math.floor(e/3)*2] - voronoi.circumcenters[Math.floor(i/3)*2],\n voronoi.circumcenters[Math.floor(e/3)*2+1] - voronoi.circumcenters[Math.floor(i/3)*2+1]\n )\n )","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":1059,"value":"oneRingDensity = d3.map(inedgeSets, (s,j) => 1/d3.mean(d3.permute(delEdgeLengths,s)))","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":298,"value":"df = d3.map(\n inedgeSets,\n (s,i) => d3.sum(\n d3.transpose([\n d3.permute(ν,s),\n d3.permute(f,d3.permute(delaunay.triangles,s))\n ]),\n ([v,fj])=>v*(f[i]-fj)\n )\n)","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":745,"value":"H = d3.map(\n d3.range(0,delaunay.points.length/2),\n i => df[i]/A[i]\n)","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":905,"value":"prevHalfedge = (e) => (e % 3 === 0) ? e + 2 : e - 1;","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":907,"value":"nextHalfedge = (e) => (e % 3 === 2) ? e - 2 : e + 1;","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":1771,"value":"flipHalfedge = (e) => delaunay.halfedges[e];","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":1773,"value":"rotateCW = (e) => flipHalfedge(nextHalfedge(e));","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":1775,"value":"rotateCCW = (e) => prevHalfedge(flipHalfedge(e));","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":174,"value":"grow = {\n const growCW = (a) => \n a.at(-1) === -1 \n ? a \n : rotateCW(a.at(-1)) < 0 \n ? rotateCCW(a[0]) > 0\n ? growCCW(a) \n : a\n : rotateCW(a.at(-1)) != a[0] \n ? growCW([...a,rotateCW(a.at(-1))]) \n : a;\n\n const growCCW = (a) => \n a[0] === -1 \n ? a \n : rotateCCW(a[0]) < 0\n ? rotateCW(a.at(-1)) > 0 \n ? growCW(a)\n : a\n : rotateCCW(a[0]) != a.at(-1)\n ? growCCW([rotateCCW(a[0]),...a]) \n : a;\n return {CW:growCW,CCW:growCCW}\n}","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":1766,"value":"inedgeSets = d3.map(\n delaunay.inedges,\n d=>grow.CW([d])\n);","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":265,"value":"A = d3.map(\n inedgeSets,\n s => \n Math.abs(\n d3.sum(\n d3.pairs(\n [...s,s[0]],\n (a,b) => [\n (\n voronoi.circumcenters[Math.floor(a/3)*2]*\n voronoi.circumcenters[Math.floor(b/3)*2+1]\n ) -\n (\n voronoi.circumcenters[Math.floor(a/3)*2+1] *\n voronoi.circumcenters[Math.floor(b/3)*2]\n ),\n ]\n )\n )\n )/2\n)","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":98,"value":" ν = d3.map(\n delaunay.halfedges,\n (e,i) => e > -1 \n ? vorEdgeLengths[e] / delEdgeLengths[e]\n : undefined\n)","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":93,"value":"delaunay = d3.Delaunay.from(points)","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":758,"value":"margin = 30","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":96,"value":"voronoi = delaunay.voronoi([xextent[0]-margin,yextent[0]-margin,xextent[1]+margin,yextent[1]+margin])","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":6,"value":"height = width * (yextent[1]-yextent[0])/(xextent[1]-xextent[0])","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":109,"value":"xextent = d3.extent(points,d=>d[0])","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":111,"value":"yextent = d3.extent(points,d=>d[1])","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":459,"value":"transform = ([x,y]) => [transformX(x),transformY(y)];","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":312,"value":"transformX = (x) => x !== undefined ? (x-xextent[0]) * width / (xextent[1]-xextent[0]) : undefined;","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":431,"value":"transformY = (y) => y !== undefined ? 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