Added basic example

This commit is contained in:
2022-07-29 23:35:02 +02:00
parent e98266f036
commit 8f26634f9c
5 changed files with 449 additions and 0 deletions

15
basic-example/README.md Normal file
View File

@@ -0,0 +1,15 @@
# Grundlegendes Beispiel
_Für Kapitel 3.3_
[D3](https://d3js.org/) ist eine JavaScript-Bibliothek zur Datendarstellung.
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.
Die Darstellungen sollten exakt gleich aussehen.
## Notizen/Hinweise
`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.
Der Kommentar `<!-- prettier-ignore -->` verhindert, dass mein verwendeter Formatter Prettier den Inhalt `py-script`-Tags staucht und damit unbrauchbar macht.

179
basic-example/base.html Normal file
View File

@@ -0,0 +1,179 @@
<html>
<head>
<title>d3: JavaScript & PyScript visualizations side-by-side</title>
<meta charset="utf-8" />
<link rel="icon" type="image/x-icon" href="./favicon.png" />
<link rel="stylesheet" href="https://pyscript.net/alpha/pyscript.css" />
<script defer src="https://pyscript.net/alpha/pyscript.js"></script>
<style>
.loading {
display: inline-block;
width: 50px;
height: 50px;
border: 3px solid rgba(255, 255, 255, 0.3);
border-radius: 50%;
border-top-color: black;
animation: spin 1s ease-in-out infinite;
}
@keyframes spin {
to {
transform: rotate(360deg);
}
}
</style>
</head>
<body>
<b>
Based on
<i
><a
href="https://observablehq.com/@d3/learn-d3-shapes?collection=@d3/learn-d3>"
>Learn D3: Shapes</a
></i
>
tutorial.
</b>
<div style="display: flex; flex-direction: row">
<div>
<div style="text-align: center">JavaScript version</div>
<div id="js" style="width: 400px; height: 400px">
<div class="loading"></div>
</div>
</div>
<div>
<div style="text-align: center">PyScript version</div>
<div id="py" style="width: 400px; height: 400px">
<div class="loading"></div>
</div>
</div>
</div>
<script type="importmap">
{
"imports": {
"d3": "https://cdn.skypack.dev/d3@7"
}
}
</script>
<script type="module">
import * as d3 from 'https://cdn.skypack.dev/d3@7';
const fruits = [
{ name: '🍊', count: 21 },
{ name: '🍇', count: 13 },
{ name: '🍏', count: 8 },
{ name: '🍌', count: 5 },
{ name: '🍐', count: 3 },
{ name: '🍋', count: 2 },
{ name: '🍎', count: 1 },
{ name: '🍉', count: 1 },
];
const fn = (d) => d.count;
const data = d3.pie().value(fn)(fruits);
const arc = d3
.arc()
.innerRadius(210)
.outerRadius(310)
.padRadius(300)
.padAngle(2 / 300)
.cornerRadius(8);
const js = d3.select('#js');
js.select('.loading').remove();
const svg = js
.append('svg')
.attr('viewBox', '-320 -320 640 640')
.attr('width', '400')
.attr('height', '400');
for (const d of data) {
svg.append('path').style('fill', 'steelblue').attr('d', arc(d));
const text = svg
.append('text')
.style('fill', 'white')
.attr('transform', `translate(${arc.centroid(d).join(',')})`)
.attr('text-anchor', 'middle');
text
.append('tspan')
.style('font-size', '24')
.attr('x', '0')
.text(d.data.name);
text
.append('tspan')
.style('font-size', '18')
.attr('x', '0')
.attr('dy', '1.3em')
.text(d.value);
}
</script>
<!-- prettier-ignore -->
<py-script>
from pyodide import create_proxy, to_js
import d3
fruits = [
dict(name="🍊", count=21),
dict(name="🍇", count=13),
dict(name="🍏", count=8),
dict(name="🍌", count=5),
dict(name="🍐", count=3),
dict(name="🍋", count=2),
dict(name="🍎", count=1),
dict(name="🍉", count=1),
]
fn = create_proxy(lambda d, *_: d["count"])
data = d3.pie().value(fn)(to_js(fruits))
arc = (d3.arc()
.innerRadius(210)
.outerRadius(310)
.padRadius(300)
.padAngle(2 / 300)
.cornerRadius(8))
py = d3.select("#py")
py.select(".loading").remove()
svg = (py
.append("svg")
.attr("viewBox", "-320 -320 640 640")
.attr("width", "400")
.attr("height", "400"))
for d in data:
d_py = d.to_py()
(svg.append("path")
.style("fill", "steelblue")
.attr("d", arc(d)))
text = (svg.append("text")
.style("fill", "white")
.attr("transform", f"translate({arc.centroid(d).join(',')})")
.attr("text-anchor", "middle"))
(text.append("tspan")
.style("font-size", "24")
.attr("x", "0")
.text(d_py["data"]["name"]))
(text.append("tspan")
.style("font-size", "18")
.attr("x", "0")
.attr("dy", "1.3em")
.text(d_py["value"]))
</py-script>
</body>
</html>

View File

@@ -0,0 +1,95 @@
<!DOCTYPE html>
<html lang="de">
<head>
<meta charset="UTF-8" />
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<link rel="icon" type="image/x-icon" href="../assets/favicon.png" />
<script src="../assets/d3.v7.min.js" charset="utf-8"></script>
<style>
* {
font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI',
Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue',
sans-serif;
}
</style>
<title>D3 mit JavaScript</title>
</head>
<body>
<div>
<div style="text-align: center">JavaScript</div>
<div id="js" style="width: 400px; height: 400px; margin: auto">
<div class="loading"></div>
</div>
</div>
<script>
url = 'https://duolingo.checksch.de/duo_user_info.json';
fetch(url)
.then((res) => res.json())
.then((out) => {
const langInfo = out.lang_data;
langInfoPrepped = [];
Object.entries(langInfo).forEach((el) => {
item = {};
item['name'] = el[1].learningLanguage;
item['count'] = el[1].xp;
// Filter irrelevant items
if (item['count'] > 500) {
langInfoPrepped.push(item);
}
});
console.log(langInfoPrepped);
const fn = (d) => d.count;
const data = d3.pie().value(fn)(langInfoPrepped);
const arc = d3
.arc()
.innerRadius(210)
.outerRadius(310)
.padRadius(300)
.padAngle(2 / 300)
.cornerRadius(8);
const js = d3.select('#js');
js.select('.loading').remove();
const svg = js
.append('svg')
.attr('viewBox', '-320 -320 640 640')
.attr('width', '400')
.attr('height', '400');
for (const d of data) {
svg.append('path').style('fill', 'rebeccapurple').attr('d', arc(d));
const text = svg
.append('text')
.style('fill', 'white')
.attr('transform', `translate(${arc.centroid(d).join(',')})`)
.attr('text-anchor', 'middle');
text
.append('tspan')
.style('font-size', '24')
.attr('x', '0')
.text(d.data.name);
text
.append('tspan')
.style('font-size', '18')
.attr('x', '0')
.attr('dy', '1.3em')
.text(d.value);
}
})
.catch((err) => console.log(err));
</script>
</body>
</html>

View File

@@ -0,0 +1,97 @@
<!DOCTYPE html>
<html lang="de">
<head>
<meta charset="UTF-8" />
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<link rel="icon" type="image/x-icon" href="../assets/favicon.png" />
<link rel="stylesheet" href="../assets/pyscript.css" />
<script defer src="../assets/pyscript.js"></script>
<title>D3 mit PyScript</title>
</head>
<body>
<div>
<div style="text-align: center">PyScript</div>
<div id="py" style="width: 400px; height: 400px; margin: auto">
<div class="loading"></div>
</div>
</div>
<script type="importmap">
{
"imports": {
"d3": "https://cdn.skypack.dev/d3@7"
}
}
</script>
<!-- prettier-ignore -->
<py-script>
from pyodide import create_proxy, to_js, open_url
import d3
import json
url = f"https://duolingo.checksch.de/duo_user_info.json"
res = open_url(url)
lang_info = json.loads(res.read())["lang_data"]
lang_info_prepped = []
for lang in lang_info:
item = dict(name=lang_info[lang]["learningLanguage"], count=lang_info[lang]["xp"])
if lang_info[lang]["xp"] > 500:
lang_info_prepped.append(item)
fn = create_proxy(lambda d, *_: d["count"])
data = d3.pie().value(fn)(to_js(lang_info_prepped))
arc = (
d3.arc()
.innerRadius(210)
.outerRadius(310)
.padRadius(300)
.padAngle(2 / 300)
.cornerRadius(8)
)
py = d3.select("#py")
py.select(".loading").remove()
svg = (
py.append("svg")
.attr("viewBox", "-320 -320 640 640")
.attr("width", "400")
.attr("height", "400")
)
for d in data:
d_py = d.to_py()
(svg.append("path").style("fill", "rebeccapurple").attr("d", arc(d)))
text = (
svg.append("text")
.style("fill", "white")
.attr("transform", f"translate({arc.centroid(d).join(',')})")
.attr("text-anchor", "middle")
)
(
text.append("tspan")
.style("font-size", "24")
.attr("x", "0")
.text(d_py["data"]["name"])
)
(
text.append("tspan")
.style("font-size", "18")
.attr("x", "0")
.attr("dy", "1.3em")
.text(d_py["value"])
)
</py-script>
</body>
</html>

63
basic-example/pyscript.py Normal file
View File

@@ -0,0 +1,63 @@
from pyodide import create_proxy, to_js, open_url
import d3
import json
url = f"https://duolingo.checksch.de/duo_user_info.json"
res = open_url(url)
lang_info = json.loads(res.read())["lang_data"]
lang_info_prepped = []
for lang in lang_info:
item = dict(name=lang_info[lang]["learningLanguage"], count=lang_info[lang]["xp"])
if lang_info[lang]["xp"] > 500:
lang_info_prepped.append(item)
fn = create_proxy(lambda d, *_: d["count"])
data = d3.pie().value(fn)(to_js(lang_info_prepped))
arc = (
d3.arc()
.innerRadius(210)
.outerRadius(310)
.padRadius(300)
.padAngle(2 / 300)
.cornerRadius(8)
)
py = d3.select("#py")
py.select(".loading").remove()
svg = (
py.append("svg")
.attr("viewBox", "-320 -320 640 640")
.attr("width", "400")
.attr("height", "400")
)
for d in data:
d_py = d.to_py()
(svg.append("path").style("fill", "rebeccapurple").attr("d", arc(d)))
text = (
svg.append("text")
.style("fill", "white")
.attr("transform", f"translate({arc.centroid(d).join(',')})")
.attr("text-anchor", "middle")
)
(
text.append("tspan")
.style("font-size", "24")
.attr("x", "0")
.text(d_py["data"]["name"])
)
(
text.append("tspan")
.style("font-size", "18")
.attr("x", "0")
.attr("dy", "1.3em")
.text(d_py["value"])
)