Public
Edited
Apr 12, 2023
chart = html`<svg
viewBox="0 0 ${width} ${height}"
style="display: block;">
<g>
${data.filter(d => d.temp !== "na").map(d => {
const icon = svgIcon(d.desc, hourScale.bandwidth() + 1, yearScale.bandwidth(), tempColor(d.temp));
return svg`<g transform="translate(${hourScale_(d.hour)},${yearScale(d.year)})">
<rect width="${hourScale.bandwidth()}" height="${yearScale.bandwidth()}" fill="transparent" />
${icon}
<title>${d.time}, ${d.temp}°C / ${Math.round(9*d.temp/5+32)}°F, ${d.desc}</title>
</g>`;
})}
</g>
${d3.select(svg`<g transform="translate(${margin.left},0)">`)
.call(d3.axisLeft(yearScale))
.call(g => g.select(".domain").remove())
.node()}
</svg>`
tempColor = d3.scaleSequential()
.domain([-5, 30])
.interpolator(d3.interpolateViridis);
yearScale = d3.scaleBand()
.domain(data.map(d => d.year))
.range([margin.top, height - margin.bottom])
hourPadding = 4
hourScale = d3.scaleBand()
.domain(d3.range(0, 96))
.range([margin.left, width - margin.right - 3*hourPadding])
hourScale_ = h => hourScale(h) + Math.floor(h / 24)*hourPadding
svgIcon = (i, w, h, f) => {
const wrap = child => svg`
<g transform="scale(${w/10}, ${h/10})" fill="${f}">
${child}
</g>`;
if (["clear", "cloud", "fog"].some(w => i.includes(w))) {
return wrap(svg`
<rect x="0" y="3.5" width="10" height="3"/>
`);
}
return wrap(svg`
<rect x="0" y="1" width="10" height="8"/>
`);
}
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