Published
Edited
Jun 21, 2021
md`# Carte Sun Tunnels, 5 photos, test couleurs + légende`
legendaire = {
//source couleurs: https://observablehq.com/@mbostock/mortality-due-to-alcohol-use-disorder
const width = 600;
const title = "Réutilisation des photographies"
const svg = d3.create("svg")
.attr("width", width)
const legend = svg.append("g")
.attr("transform", `translate(0,20)`)
.call(d3.axisBottom(color.copy().rangeRound(d3.quantize(d3.interpolate(0, width),color.domain().length))).tickSize(13).ticks(5))
.call(g => g.selectAll(".tick line").attr("stroke", "#fff"))
.call(g => g.select(".domain").remove());
legend.insert("image", "*")
.attr("width", width)
.attr("height", 13)
.attr("preserveAspectRatio", "none")
.attr("xlink:href", ramp(color).toDataURL());
legend.append("text")
.attr("class", "caption")
.attr("y", -6)
.attr("fill", "#000")
.attr("text-anchor", "start")
.attr("font-weight", "bold")
.text(title);
return svg.node()
}
format = d3.format(".1f")
function ramp(color, n = 256) {
const context = DOM.context2d(n, 1, 1);
const x = d3.scaleLinear()
.domain(d3.quantize(d3.interpolate(0, n - 1), color.domain().length))
.range(color.domain());
for (let i = 0; i < n; ++i) {
context.fillStyle = color(x(i));
context.fillRect(i, 0, 1, 1);
}
return context.canvas;
}
color = d3.scaleLog().base(2).domain([1, 60]).range(["#B7ECF5","#18304E"])
height = {
const [[x0, y0], [x1, y1]] = d3.geoPath(projection.fitWidth(width, outline)).bounds(outline);
const dy = Math.ceil(y1 - y0), l = Math.min(Math.ceil(x1 - x0), dy);
projection.scale(projection.scale() * (l - 1) / l).precision(0.2);
return dy;
}
showToolTip = (text, coords) => {
d3.select(".tooltip")
.text(text)
.style("top", coords[1] + "px")
.style("left", coords[0] + "px")
.style("visibility", "visible");
}
md `## Données`
countries.features[0].properties.data.length
entities = d3.group(donnees, d => d.COUNTRY)
data = donnees.map(({PHOTO, URL, COUNTRY}) => ({photo: PHOTO, url: URL, country: COUNTRY}))
donnees = d3.csv("https://gist.githubusercontent.com/artetsite/5b3f9862628ef44b4d4dab6f34ffff1d/raw/2003ea5c79ee6ac7511f49cc42bd8a78d709c30b/gistfile1.txt")
countries = {
// attach data to each country in properties
const countries = topojson.feature(world, world.objects.countries);
countries.features.forEach(country => {
if (!entities.get(country.properties.name))
country.properties.data = ""
else
country.properties.data = entities.get(country.properties.name);
})
return countries
}
countriesTest = topojson.feature(world, world.objects.countries);
outline = ({ type: "Sphere" })
projection = d3.geoNaturalEarth1()
path = d3.geoPath(projection)
world = await FileAttachment("countries-110m.json").json()
topojson = require("topojson-client@3")
import { legend } from "@d3/color-legend"
d3 = require("d3@6")
styles = html`
<style>
.tooltip {
font-family: -apple-system, system-ui, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
background: rgba(69,77,93,.9);
border-radius: .1rem;
color: #fff;
display: block;
font-size: 11px;
max-width: 320px;
padding: .2rem .4rem;
position: absolute;
text-overflow: ellipsis;
white-space: pre;
z-index: 300;
visibility: hidden;
}
</style>`
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