⚡ Data scientist, I enjoy telling stories with data. I'm currently learning D3.js and working on hobby projects, Mapbox visualizations, and fiddling with Juniper network data.
raw = FileAttachment("data@4.json").json()
height = 500
liesboschGeoJson = ({
coordinates: [
[
[5.1110458, 52.058982],
[5.1061106, 52.0493235],
[5.1092005, 52.042857],
[5.1164961, 52.0449686],
[5.1221609, 52.0564225],
[5.1110458, 52.058982]
]
],
type: "Polygon"
})
LiesboschArea = turf.polygon(liesboschGeoJson.coordinates)
function nFormatter(num, digits) {
// https://stackoverflow.com/a/9462382
const lookup = [
{ value: 1, symbol: "" },
{ value: 1e6, symbol: "M" },
{ value: 1e9, symbol: "B" },
{ value: 1e12, symbol: "T" }
];
const rx = /\.0+$|(\.[0-9]*[1-9])0+$/;
var item = lookup
.slice()
.reverse()
.find(function (item) {
return num >= item.value;
});
return item
? (num / item.value).toFixed(digits).replace(rx, "$1") + item.symbol
: "0";
}
function nAreaFormatter(num, digits) {
// https://stackoverflow.com/a/9462382
const lookup = [
{ value: 1, symbol: "m²" },
{ value: 1e6, symbol: "km²" }
];
const rx = /\.0+$|(\.[0-9]*[1-9])0+$/;
var item = lookup
.slice()
.reverse()
.find(function (item) {
return num >= item.value;
});
return item
? (num / item.value).toFixed(digits).replace(rx, "$1") + item.symbol
: "0";
}
// Copyright 2021 Observable, Inc.
// Released under the ISC license.
// https://observablehq.com/@d3/bar-chart
function BarChart(
data,
{
x = (d, i) => i, // given d in data, returns the (ordinal) x-value
y = (d) => d, // given d in data, returns the (quantitative) y-value
title, // given d in data, returns the title text
marginTop = 20, // the top margin, in pixels
marginRight = 0, // the right margin, in pixels
marginBottom = 30, // the bottom margin, in pixels
marginLeft = 40, // the left margin, in pixels
width = 640, // the outer width of the chart, in pixels
height = 400, // the outer height of the chart, in pixels
xDomain, // an array of (ordinal) x-values
xRange = [marginLeft, width - marginRight], // [left, right]
yType = d3.scaleLinear, // y-scale type
yDomain, // [ymin, ymax]
yRange = [height - marginBottom, marginTop], // [bottom, top]
xPadding = 0.1, // amount of x-range to reserve to separate bars
yFormat, // a format specifier string for the y-axis
yLabel, // a label for the y-axis
color = (d) => d // bar fill color
} = {}
) {
// Compute values.
const X = d3.map(data, x);
const Y = d3.map(data, y);
const Color = d3.map(data, color);
// Compute default domains, and unique the x-domain.
if (xDomain === undefined) xDomain = X;
if (yDomain === undefined) yDomain = [0, d3.max(Y)];
xDomain = new d3.InternSet(xDomain);
// Omit any data not present in the x-domain.
const I = d3.range(X.length).filter((i) => xDomain.has(X[i]));
// Construct scales, axes, and formats.
const xScale = d3.scaleBand(xDomain, xRange).padding(xPadding);
const yScale = yType(yDomain, yRange);
const xAxis = d3.axisBottom(xScale).tickSizeOuter(0);
const yAxis = d3.axisLeft(yScale).ticks(height / 40, yFormat);
// Compute titles.
if (title === undefined) {
const formatValue = yScale.tickFormat(100, yFormat);
title = (i) => `${X[i]}\n${formatValue(Y[i])}`;
} else {
const O = d3.map(data, (d) => d);
const T = title;
title = (i) => T(O[i], i, data);
}
const svg = d3
.create("svg")
.attr("width", width)
.attr("height", height)
.attr("viewBox", [0, 0, width, height])
.attr(
"style",
"max-width: 100%; height: auto; height: intrinsic;background-color:#404040"
);
svg
.append("g")
.attr("class", "axisWhite")
.attr("transform", `translate(${marginLeft},0)`)
.call(yAxis)
.call((g) => g.select(".domain").remove())
.call((g) =>
g
.selectAll(".tick line")
.clone()
.attr("x2", width - marginLeft - marginRight)
.attr("stroke-opacity", 0.25)
)
.call((g) =>
g
.append("text")
.attr("x", -marginLeft)
.attr("y", 10)
.attr("text-anchor", "start")
.text(yLabel)
);
const bar = svg
.append("g")
.selectAll("rect")
.data(I)
.join("rect")
.attr("fill", (i) => Color[i])
.attr("x", (i) => xScale(X[i]))
.attr("y", (i) => yScale(Y[i]))
.attr("height", (i) => yScale(0) - yScale(Y[i]))
.attr("width", xScale.bandwidth());
if (title) bar.append("title").text(title);
svg
.append("g")
.attr("transform", `translate(0,${height - marginBottom})`)
.attr("class", "axisWhite")
.call(xAxis);
return svg.node();
}
mapboxgl = {
const gl = await require("mapbox-gl");
if (!gl.accessToken) {
gl.accessToken = TEMP_TOKEN;
const href = await require.resolve("mapbox-gl/dist/mapbox-gl.css");
document.head.appendChild(html`<link href=${href} rel=stylesheet>`);
}
return gl;
}
MapboxGeocoder = {
const geocoder = require("https://bundle.run/@mapbox/mapbox-gl-geocoder@4.7.4");
const href = await require.resolve(
"@mapbox/mapbox-gl-geocoder/dist/mapbox-gl-geocoder.css"
);
document.head.appendChild(html`<link href=${href} rel=stylesheet>`);
return geocoder;
}
turf = require("@turf/turf@6.5.0/turf.min.js")
_ = require("lodash@4.17.21/lodash.js")
import { slider, number } from "@jashkenas/inputs"
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