Public
Edited
Jan 9, 2022
1 star
chart = {
const svg = d3
.create("svg")
.attr("viewBox", [0, 0, width, height + 20])
.on("mouseout", () => {
d3.selectAll(`path`).attr("stroke-opacity", 0.1);
});
const { nodes, links } = sankey(data);
svg
.append("g")
.attr("stroke", "#000")
.selectAll("rect")
.data(nodes)
.join("rect")
.attr("x", (d) => d.x0)
.attr("y", (d) => d.y0)
.attr("height", (d) => d.y1 - d.y0)
.attr("width", (d) => d.x1 - d.x0)
.attr("fill", (d) => {
// if (d.name === 'opex') {
// return d3.schemeSet1[0];
// }
// if (d.name === 'capex') {
// return d3.schemeSet1[4];
// }
return color(d.name);
})
.on("mouseover", (d) => {
d.sourceLinks.forEach((e) => {
d3.selectAll(`path.trajectory_${e.id}`).attr("stroke-opacity", 0.4);
});
d.targetLinks.forEach((e) => {
d3.selectAll(`path.trajectory_${e.id}`).attr("stroke-opacity", 0.4);
});
})
.on("mouseout", (d) => {
d.sourceLinks.forEach((e) => {
d3.selectAll(`path.trajectory_${e.id}`).attr("stroke-opacity", 0.1);
});
})
.append("title")
.text((d) => `${d.name}\n${format(d.value)}`);
const link = svg
.append("g")
.attr("fill", "none")
.attr("stroke-opacity", 0.4)
.selectAll("g")
.data(links)
.join("g")
.style("mix-blend-mode", "multiply");
link
.append("path")
.attr("class", (d) => `trajectory_${d.id}`)
.attr("d", d3.sankeyLinkHorizontal())
.attr("stroke", (d) =>
d.type === "opex" ? d3.schemeSet1[0] : d3.schemeSet1[4]
)
.attr("stroke-opacity", 0.2)
.attr("stroke-width", (d) => Math.max(1, d.width));
link
.append("title")
.text((d) => `${d.source.name} → ${d.target.name}\s${format(d.value)}`);
svg
.append("g")
.style("font", "15px sans-serif")
.selectAll("text")
.data(nodes)
.join("text")
.attr("x", (d) => (d.x0 < width / 2 ? d.x1 + 6 : d.x0 - 6))
.attr("y", (d) => (d.y1 + d.y0) / 2)
.attr("dy", "0.7em")
.attr("text-anchor", (d) => (d.x0 < width / 2 ? "start" : "end"))
.text((d) => d.name + " " + format(d.value))
.append("tspan")
.attr("dy", 12)
.attr("dx", 20)
.attr("font-size", "9px sans-serif");
return svg.node();
}
sankey = {
const sankey = d3.sankey()
.nodeSort((a, b) => a.id - b.id)
.nodeId(d => d.id)
.linkSort(null)
.nodeWidth(15)
.nodePadding(10)
.extent([[1, 5], [width - 1, height - 5]]);
return ({nodes, links}) => sankey({
nodes: nodes.map(d => Object.assign({}, d)),
links: links.map(d => Object.assign({}, d))
});
}
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height = 1500;
width = 1200;
d3 = require("d3@5", "d3-sankey@0.12")
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