Added basic example
This commit is contained in:
15
basic-example/README.md
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15
basic-example/README.md
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# Grundlegendes Beispiel
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_Für Kapitel 3.3_
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[D3](https://d3js.org/) ist eine JavaScript-Bibliothek zur Datendarstellung.
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In `javascript.html` und `pyscript.html` wird dargestellt, wie Daten für die Verwendung in D3 jeweils mit JavaScript und PyScript von einer externen Quelle in JSON-Form bezogen mithilfe von D3 in die Seite eingebettet werden.
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Die Darstellungen sollten exakt gleich aussehen.
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## Notizen/Hinweise
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`pyscript.py` in diesem Ordner wird nicht direkt verwendet, sondern ist nur eine Kopie des Skriptes aus `pyscript.js` und dient nur dem Zweck einer besser lesbaren Darstellung in gängigen Editoren und auf GitHub.
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Der Kommentar `<!-- prettier-ignore -->` verhindert, dass mein verwendeter Formatter Prettier den Inhalt `py-script`-Tags staucht und damit unbrauchbar macht.
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179
basic-example/base.html
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179
basic-example/base.html
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<html>
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<head>
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<title>d3: JavaScript & PyScript visualizations side-by-side</title>
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<meta charset="utf-8" />
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<link rel="icon" type="image/x-icon" href="./favicon.png" />
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<link rel="stylesheet" href="https://pyscript.net/alpha/pyscript.css" />
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<script defer src="https://pyscript.net/alpha/pyscript.js"></script>
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<style>
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.loading {
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display: inline-block;
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width: 50px;
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height: 50px;
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border: 3px solid rgba(255, 255, 255, 0.3);
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border-radius: 50%;
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border-top-color: black;
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animation: spin 1s ease-in-out infinite;
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}
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@keyframes spin {
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to {
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transform: rotate(360deg);
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}
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}
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</style>
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</head>
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<body>
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<b>
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Based on
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<i
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><a
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href="https://observablehq.com/@d3/learn-d3-shapes?collection=@d3/learn-d3>"
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>Learn D3: Shapes</a
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></i
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>
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tutorial.
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</b>
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<div style="display: flex; flex-direction: row">
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<div>
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<div style="text-align: center">JavaScript version</div>
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<div id="js" style="width: 400px; height: 400px">
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<div class="loading"></div>
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</div>
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</div>
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<div>
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<div style="text-align: center">PyScript version</div>
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<div id="py" style="width: 400px; height: 400px">
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<div class="loading"></div>
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</div>
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</div>
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</div>
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<script type="importmap">
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{
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"imports": {
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"d3": "https://cdn.skypack.dev/d3@7"
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}
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}
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</script>
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<script type="module">
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import * as d3 from 'https://cdn.skypack.dev/d3@7';
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const fruits = [
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{ name: '🍊', count: 21 },
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{ name: '🍇', count: 13 },
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{ name: '🍏', count: 8 },
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{ name: '🍌', count: 5 },
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{ name: '🍐', count: 3 },
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{ name: '🍋', count: 2 },
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{ name: '🍎', count: 1 },
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{ name: '🍉', count: 1 },
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];
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const fn = (d) => d.count;
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const data = d3.pie().value(fn)(fruits);
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const arc = d3
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.arc()
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.innerRadius(210)
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.outerRadius(310)
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.padRadius(300)
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.padAngle(2 / 300)
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.cornerRadius(8);
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const js = d3.select('#js');
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js.select('.loading').remove();
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const svg = js
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.append('svg')
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.attr('viewBox', '-320 -320 640 640')
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.attr('width', '400')
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.attr('height', '400');
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for (const d of data) {
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svg.append('path').style('fill', 'steelblue').attr('d', arc(d));
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const text = svg
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.append('text')
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.style('fill', 'white')
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.attr('transform', `translate(${arc.centroid(d).join(',')})`)
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.attr('text-anchor', 'middle');
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text
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.append('tspan')
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.style('font-size', '24')
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.attr('x', '0')
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.text(d.data.name);
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text
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.append('tspan')
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.style('font-size', '18')
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.attr('x', '0')
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.attr('dy', '1.3em')
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.text(d.value);
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}
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</script>
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<!-- prettier-ignore -->
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<py-script>
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from pyodide import create_proxy, to_js
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import d3
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fruits = [
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dict(name="🍊", count=21),
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dict(name="🍇", count=13),
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dict(name="🍏", count=8),
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dict(name="🍌", count=5),
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dict(name="🍐", count=3),
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dict(name="🍋", count=2),
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dict(name="🍎", count=1),
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dict(name="🍉", count=1),
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]
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fn = create_proxy(lambda d, *_: d["count"])
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data = d3.pie().value(fn)(to_js(fruits))
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arc = (d3.arc()
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.innerRadius(210)
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.outerRadius(310)
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.padRadius(300)
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.padAngle(2 / 300)
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.cornerRadius(8))
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py = d3.select("#py")
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py.select(".loading").remove()
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svg = (py
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.append("svg")
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.attr("viewBox", "-320 -320 640 640")
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.attr("width", "400")
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.attr("height", "400"))
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for d in data:
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d_py = d.to_py()
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(svg.append("path")
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.style("fill", "steelblue")
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.attr("d", arc(d)))
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text = (svg.append("text")
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.style("fill", "white")
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.attr("transform", f"translate({arc.centroid(d).join(',')})")
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.attr("text-anchor", "middle"))
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(text.append("tspan")
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.style("font-size", "24")
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.attr("x", "0")
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.text(d_py["data"]["name"]))
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(text.append("tspan")
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.style("font-size", "18")
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.attr("x", "0")
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.attr("dy", "1.3em")
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.text(d_py["value"]))
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</py-script>
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</body>
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</html>
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95
basic-example/javascript.html
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95
basic-example/javascript.html
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<!DOCTYPE html>
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<html lang="de">
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<head>
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<meta charset="UTF-8" />
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<meta http-equiv="X-UA-Compatible" content="IE=edge" />
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<meta name="viewport" content="width=device-width, initial-scale=1.0" />
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<link rel="icon" type="image/x-icon" href="../assets/favicon.png" />
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<script src="../assets/d3.v7.min.js" charset="utf-8"></script>
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<style>
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* {
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font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI',
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Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue',
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sans-serif;
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}
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</style>
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<title>D3 mit JavaScript</title>
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</head>
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<body>
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<div>
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<div style="text-align: center">JavaScript</div>
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<div id="js" style="width: 400px; height: 400px; margin: auto">
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<div class="loading"></div>
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</div>
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</div>
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<script>
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url = 'https://duolingo.checksch.de/duo_user_info.json';
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fetch(url)
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.then((res) => res.json())
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.then((out) => {
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const langInfo = out.lang_data;
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langInfoPrepped = [];
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Object.entries(langInfo).forEach((el) => {
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item = {};
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item['name'] = el[1].learningLanguage;
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item['count'] = el[1].xp;
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// Filter irrelevant items
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if (item['count'] > 500) {
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langInfoPrepped.push(item);
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}
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});
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console.log(langInfoPrepped);
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const fn = (d) => d.count;
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const data = d3.pie().value(fn)(langInfoPrepped);
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const arc = d3
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.arc()
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.innerRadius(210)
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.outerRadius(310)
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.padRadius(300)
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.padAngle(2 / 300)
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.cornerRadius(8);
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const js = d3.select('#js');
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js.select('.loading').remove();
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const svg = js
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.append('svg')
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.attr('viewBox', '-320 -320 640 640')
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.attr('width', '400')
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.attr('height', '400');
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for (const d of data) {
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svg.append('path').style('fill', 'rebeccapurple').attr('d', arc(d));
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const text = svg
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.append('text')
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.style('fill', 'white')
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.attr('transform', `translate(${arc.centroid(d).join(',')})`)
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.attr('text-anchor', 'middle');
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text
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.append('tspan')
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.style('font-size', '24')
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.attr('x', '0')
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.text(d.data.name);
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text
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.append('tspan')
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.style('font-size', '18')
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.attr('x', '0')
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.attr('dy', '1.3em')
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.text(d.value);
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}
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})
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.catch((err) => console.log(err));
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</script>
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</body>
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</html>
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97
basic-example/pyscript.html
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97
basic-example/pyscript.html
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<!DOCTYPE html>
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<html lang="de">
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<head>
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<meta charset="UTF-8" />
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<meta http-equiv="X-UA-Compatible" content="IE=edge" />
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<meta name="viewport" content="width=device-width, initial-scale=1.0" />
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<link rel="icon" type="image/x-icon" href="../assets/favicon.png" />
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<link rel="stylesheet" href="../assets/pyscript.css" />
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<script defer src="../assets/pyscript.js"></script>
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<title>D3 mit PyScript</title>
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</head>
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<body>
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<div>
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<div style="text-align: center">PyScript</div>
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<div id="py" style="width: 400px; height: 400px; margin: auto">
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<div class="loading"></div>
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</div>
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</div>
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<script type="importmap">
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{
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"imports": {
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"d3": "https://cdn.skypack.dev/d3@7"
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}
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}
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</script>
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<!-- prettier-ignore -->
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<py-script>
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from pyodide import create_proxy, to_js, open_url
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import d3
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import json
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url = f"https://duolingo.checksch.de/duo_user_info.json"
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res = open_url(url)
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lang_info = json.loads(res.read())["lang_data"]
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lang_info_prepped = []
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for lang in lang_info:
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item = dict(name=lang_info[lang]["learningLanguage"], count=lang_info[lang]["xp"])
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if lang_info[lang]["xp"] > 500:
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lang_info_prepped.append(item)
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fn = create_proxy(lambda d, *_: d["count"])
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data = d3.pie().value(fn)(to_js(lang_info_prepped))
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arc = (
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d3.arc()
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.innerRadius(210)
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.outerRadius(310)
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.padRadius(300)
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.padAngle(2 / 300)
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.cornerRadius(8)
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)
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py = d3.select("#py")
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py.select(".loading").remove()
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svg = (
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py.append("svg")
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.attr("viewBox", "-320 -320 640 640")
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.attr("width", "400")
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.attr("height", "400")
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)
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for d in data:
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d_py = d.to_py()
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(svg.append("path").style("fill", "rebeccapurple").attr("d", arc(d)))
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text = (
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svg.append("text")
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.style("fill", "white")
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.attr("transform", f"translate({arc.centroid(d).join(',')})")
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.attr("text-anchor", "middle")
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)
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(
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text.append("tspan")
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.style("font-size", "24")
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.attr("x", "0")
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.text(d_py["data"]["name"])
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)
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(
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text.append("tspan")
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.style("font-size", "18")
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.attr("x", "0")
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.attr("dy", "1.3em")
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.text(d_py["value"])
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)
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</py-script>
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</body>
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</html>
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63
basic-example/pyscript.py
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63
basic-example/pyscript.py
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@@ -0,0 +1,63 @@
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from pyodide import create_proxy, to_js, open_url
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import d3
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import json
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url = f"https://duolingo.checksch.de/duo_user_info.json"
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res = open_url(url)
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lang_info = json.loads(res.read())["lang_data"]
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lang_info_prepped = []
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for lang in lang_info:
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item = dict(name=lang_info[lang]["learningLanguage"], count=lang_info[lang]["xp"])
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if lang_info[lang]["xp"] > 500:
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lang_info_prepped.append(item)
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fn = create_proxy(lambda d, *_: d["count"])
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data = d3.pie().value(fn)(to_js(lang_info_prepped))
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arc = (
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d3.arc()
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.innerRadius(210)
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.outerRadius(310)
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.padRadius(300)
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.padAngle(2 / 300)
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.cornerRadius(8)
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)
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py = d3.select("#py")
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py.select(".loading").remove()
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svg = (
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py.append("svg")
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.attr("viewBox", "-320 -320 640 640")
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.attr("width", "400")
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.attr("height", "400")
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)
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for d in data:
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d_py = d.to_py()
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(svg.append("path").style("fill", "rebeccapurple").attr("d", arc(d)))
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text = (
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svg.append("text")
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.style("fill", "white")
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.attr("transform", f"translate({arc.centroid(d).join(',')})")
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.attr("text-anchor", "middle")
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)
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(
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text.append("tspan")
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.style("font-size", "24")
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.attr("x", "0")
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.text(d_py["data"]["name"])
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)
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(
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text.append("tspan")
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.style("font-size", "18")
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.attr("x", "0")
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.attr("dy", "1.3em")
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.text(d_py["value"])
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)
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