Published
Edited
Sep 28, 2019
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Contour Labels (canvas)Coordinated mapsgeoformatSmall circle testKruskal MazeAll the geoshapesReprojecting Vector TilesCloud ContoursHello h3-jsClipping AlbersTranslucent EarthThe truth about the Mercator projectionUsing d3-inertia with observableMercator projection of a Mercator globeD3 Vector Tiles (WIP)Finding intersections between the graticule and the clip sphere of the stereographic projection, method 2Plate tectonicsAnother hex mapEquateur & tropiquesTissot's indicatrixDistance to shoreMultiPolygon clippingSouth Africa’s medial axisSpherical intersectionVolcano Semis (points circulaires)Pencil Airocean45° mapNetCDFBlue noise sphereRubber DymaxionSpherical quasi-random (R2) distributionAutomated label placement (countries)Automated label placement (France)Automated label placement (cities)d3.geoIntersectArcDelaunay.findTriangled3-geo-voronoi and gridded dataElevation vtk.jsMapfillKrigingSpherical HeatmapReproject elevation tiles — detailReproject elevation tiles — worldFisheye Conformal MapSpherical KDE InterpolationSpherical kernel interpolation with nearest neighborsShepard’s methodModified Shepard’s methodSpherical contoursGeo Voronoi interpolationBlurry contoursHow much warmer? (BBC)H3 hexagons & geoContoursHillshading & supersamplingH3 odditiesManhattan Voronoi IIGeoJSON feature editorColorized Manhattan Spanning Treelegra mapslegra country mapsThe complex logarithm projectionCountries small multipleThe 2D approximate Newton-Raphson methodOceanAttitudeCount visible objectsThe Gray-Fuller spatial gridGray-Fuller grid metricsGray-Fuller grid odditiesSpherical smallest-circle problemBounding CirclesCountries Enclosing CirclesFullscreen Seamless Zoomable Map TilesMap Pan & ZoomSpherical EllipsesSynchronized projectionsThe closest countryTriangular tiling of icosahedronHello, polygon-clippingCorées / KoreasHello, procedural-glHello, placekeyZoom World ChoroplethClipping spherical polygonsSpherical phyllotaxisFour-color world map with ClingoHello, jsgeoda!The Sun’s analemmaWorld of squaresWorld of squares (spherical)A map of AfricaTagged bordersClipped geoVoronoiBlue noise sphere IISpherical Perlin NoiseSpherical Delaunay triangulationDynamic simplificationRewindPlot: Voronoi labelsAoC 12: shortest path under constraintsHello, pixi.jsFlight PathsRay out of a convex hullDistance to a segment
Manhattan Voronoi
origins = (replay,
Array.from({ length: 5 }, () => (Math.random() * nodes.length) | 0))
src = "https://gist.githubusercontent.com/Fil/450db51a15fdc8bd34a12cb8a9961976/raw/680961da57d2b11a0e3e6993e5f79bd035729831"
nodes = d3.csv(`${src}/node_list.csv`, d3.autoType)
edges = d3.csv(`${src}/edge_list.csv`, d3.autoType)
nodesIndex = new Map(nodes.map((d, i) => [d.osmid, i]))
function createGraph(nodesIndex, edges) {
const graph = { sources: [], targets: [], costs: [] };
edges.forEach(({ u, v, length }) => {
const i = nodesIndex.get(u),
j = nodesIndex.get(v),
cost = length;
graph.sources.push(i);
graph.targets.push(j);
graph.costs.push(cost);
graph.sources.push(j);
graph.targets.push(i);
graph.costs.push(cost);
});
return graph;
}
graph = createGraph(nodesIndex, edges)
import { shortest_tree } from "@fil/dijkstra"
tree = shortest_tree({ graph, origins })
pts = nodes.map(d => projection([d.x, d.y]))
projection = d3.geoMercator().fitExtent([[10, 10], [width - 10, height - 10]], {
type: "MultiPoint",
coordinates: nodes.map(d => [d.x, d.y])
})
color = (replay, d3.scaleOrdinal(d3.schemeCategory10))
d3 = require("d3@5")
height = width * 0.9
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