Press n or j to go to the next uncovered block, b, p or k for the previous block.
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import { select, pointer, Selection, BaseType } from "d3-selection";
import { json } from "d3-fetch";
import { geoNaturalEarth1, geoPath } from "d3-geo";
import { feature, mesh } from "topojson-client";
import { GeoJsonProperties } from "geojson";
import { Topology, Objects } from "topojson-specification";
import type { TerritoriesMetricsData } from "../../publisher/types/shared";
export default function renderMap(
el: string,
snapData: TerritoriesMetricsData,
) {
const mapEl = select(el);
json("/static/js/world-110m.v1.json")
// @ts-expect-error
.then(ready)
.catch((error) => {
throw new Error(error);
});
function render(
mapEl: Selection<BaseType, unknown, HTMLElement, unknown>,
snapData: TerritoriesMetricsData,
world: Topology<Objects<GeoJsonProperties>>,
) {
const width = mapEl.property("clientWidth");
const height = width * 0.5;
// some offset position center of the map properly
const offset = width * 0.1;
const projection = geoNaturalEarth1()
.scale(width * 0.2)
.translate([width / 2, (height + offset) / 2])
.precision(0.1);
// rotate not to split Asia
projection.rotate([-10, 0]);
const path = geoPath().projection(projection);
// clean up HTML before rendering map
mapEl.html("");
const svg = mapEl.append("svg").attr("width", width).attr("height", height);
const tooltip = mapEl
.append("div")
.attr("class", "snapcraft-territories__tooltip u-no-margin");
const tooltipMsg = tooltip
.append("div")
.attr("class", "p-tooltip__message");
// @ts-expect-error
const countries = feature(world, world.objects.countries).features;
const g = svg.append("g");
const country: Selection<
BaseType,
{
geometry: {
type: string;
coordinates: Array<Array<number>>;
};
id: number;
properties: object;
type: string;
},
SVGGElement,
unknown
> = g.selectAll(".snapcraft-territories__country").data(countries);
country
.enter()
.insert("path")
.attr("class", (countryData) => {
const countrySnapData = snapData[countryData.id];
if (countrySnapData) {
return `snapcraft-territories__country snapcraft-territories__country-default`;
}
return "snapcraft-territories__country";
})
// @ts-expect-error
.attr("style", (countryData) => {
const countrySnapData = snapData[countryData.id];
if (countrySnapData) {
if (countrySnapData.color_rgb) {
return (
"fill: rgb(" +
countrySnapData.color_rgb[0] +
"," +
countrySnapData.color_rgb[1] +
"," +
countrySnapData.color_rgb[2] +
")"
);
}
}
})
// @ts-expect-error
.attr("d", path)
.attr("id", function (d) {
return d.id;
})
.attr("title", function (d) {
// @ts-expect-error
return d.properties.name;
})
.on("mousemove", (event) => {
const pos = pointer(event, event.currentTarget);
const countrySnapData = snapData[event.currentTarget.id];
if (countrySnapData) {
tooltip
.style("top", pos[1] + "px")
.style("left", pos[0] + "px")
.style("display", "block");
const content = [
'<span class="u-no-margin--top">',
countrySnapData.name,
];
if (countrySnapData["number_of_users"] !== undefined) {
content.push(`<br />${countrySnapData["number_of_users"]} active`);
}
content.push("</span>");
tooltipMsg.html(
`<span
class="snapcraft-territories__swatch"
style="background-color: rgb(${countrySnapData.color_rgb[0]}, ${
countrySnapData.color_rgb[1]
}, ${countrySnapData.color_rgb[2]})"></span>
${content.join(" ")}`,
);
}
})
.on("mouseout", function () {
tooltip.style("display", "none");
});
g.append("path")
.datum(
// @ts-expect-error
mesh(world, world.objects.countries, function (a, b) {
return a !== b;
}),
)
.attr("class", "snapcraft-territories__boundary")
.attr("d", path);
}
function ready(world: Topology<Objects<GeoJsonProperties>>) {
render(mapEl, snapData, world);
let resizeTimeout: string | number | NodeJS.Timeout | undefined;
window.addEventListener("resize", () => {
clearTimeout(resizeTimeout);
resizeTimeout = setTimeout(function () {
render(mapEl, snapData, world);
}, 100);
});
}
}
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