Building and Using Tools to See.
UVA Architecture + Data Science. IT Director. Instructor.
Line graphsArea graphsSparklineDonut or PiePixel MatrixTreemapPack CirclesSunburstDendogramClustersWord CloudClusters - dynamic movementPack Circles - dynamic movementTreemap - dynamic movementNetwork Graph - nodes and edgesCombining Layouts - Donuts on GridMapRadarRings - circle with hole maskBeeswarm - Force DiagramHeatmapdvlib_layout OverviewUS map with Powerplant Pack CirclesRing plot on Map - Trust Gap?Force Directed clustering along a pathFixed location Network GraphRadial bar / lineFitness ringsCurves / distance color gradientSVG distance along path / curveFilled Arc Polygon BandsConnecting multiple visuals in one spaceSankey / Alluvial / Parallel Sets
Pack Circles with Donuts inside
<svg width="600" height="600">
<g id="packCircles"></g>
<g id="donuts"></g>
</svg>
rollupData = d3.rollups(powerplants_2019, v => d3.sum(v, d => toNum(d["Plant annual net generation (MWh)"])), d => d["Plant state abbreviation"]).sort((a,b) => d3.descending(a[1],b[1]))
dataLayout = layoutChildren("powerplants", rollupData);
pcLayer = d3.select(svgContainer).select("#packCircles")
packCircles = dvPackCircles(pcLayer,dataLayout,600,600,'',options)
options = ({
padding: 1,
textLabelField: "Plant state abbreviation"
})
donutLayer = d3.select(svgContainer).select("#donuts")
stateFuels = d3.rollups(powerplants_2019, v => d3.sum(v, d => toNum(d["Plant annual net generation (MWh)"])), d => d["Plant state abbreviation"], d => d["Plant primary fuel generation category"])
pcLayer.selectAll("circle").each((d,i,nodes) => {
if (packCircles) {} // a dummy dependency to have it wait until the packCircles is done.
if (Array.isArray(d.data)) {
let thisState = d.data[0];
let thisX = d.x; // just to call these out specifically to understand what we're doing.
let thisY = d.y;
let thisR = d.r;
let thisStateData = stateFuels.find(s => s[0] == thisState)[1];
let donutGroup = donutLayer.select("g[id=d_thisState]").node()
? donutLayer.select("g[id=d_thisState]")
: donutLayer.append("g").attr("id","d_"+thisState);
donutGroup.attr("transform", "translate(" + thisX + " " + thisY + ")");
let options = {
translateXY:{x:0,y:0}
}
let donut = dvDonut(donutGroup, thisStateData, thisR, thisR/2,options);
}
})
One platform to build and deploy the best data apps
Experiment and prototype by building visualizations in live JavaScript notebooks. Collaborate with your team and decide which concepts to build out.
Use Observable Framework to build data apps locally. Use data loaders to build in any language or library, including Python, SQL, and R.
Seamlessly deploy to Observable. Test before you ship, use automatic deploy-on-commit, and ensure your projects are always up-to-date.