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d3.html
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<html>
<head>
<title>d3: JavaScript & PyScript visualizations side-by-side</title>
<meta charset="utf-8">
<link rel="stylesheet" href="../build/pyscript.css" />
<script defer src="../build/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 "d3"
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>
<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>