Published
Edited
Dec 18, 2019
md`# Treemap Cash Flows`
chart = {
const root = treemap(data);
const svg = d3.create("svg")
.attr("viewBox", [0, 0, width + margin.left + margin.right, height + margin.top + margin.bottom])
.style("font", "10px sans-serif")
const leaf = svg.selectAll("g")
.data(root.leaves())
.join("g")
.attr("transform", d => `translate(${d.x0 + margin.left}, ${d.y0 + margin.top})`)
leaf.append("title")
.text(d => `${d.ancestors().reverse().map(d => d.data.name).join("/")}\n${format(d.value)}`)
leaf.append("rect")
.attr("id", d => (d.leafUid = DOM.uid("leaf")).id)
.attr("fill", d => { while (d.depth > 1) d = d.parent; return color(d.data.name); })
.attr("fill-opacity", 0.6)
.attr("width", d => d.x1 - d.x0)
.attr("height", d => d.y1 - d.y0)
leaf.append("clipPath")
.attr("id", d => (d.clipUid = DOM.uid("clip")).id)
.append("use")
.attr("xlink:href", d => d.leafUid.href)
leaf.append("text")
.attr("clip-path", d => d.clipUid)
.selectAll("tspan")
.data(d => d.data.name.split(/(?=[A-Z][^A-Z])/g).concat(format(d.value)))
.join("tspan")
.attr("x", 3)
.attr("y", (d, i, nodes) => `${(i === nodes.length - 1) * 0.3 + 1.1 + i * 0.9}em`)
.attr("fill-opacity", (d, i, nodes) => i === nodes.length - 1 ? 0.7 : null)
.text(d => d)
svg.append('g')
.selectAll('.legend-group')
.data(data.children)
.join('g')
.attr('class', 'legend')
.attr('transform', (d, i) => `translate(${15 + i * 70}, 15)`)
.append('rect')
.attr('fill', (d) => color(d.name))
.attr('opacity', 0.7)
.attr('width', 15)
.attr('height', 15)
.attr('rx', 3)
svg.selectAll('.legend')
.append('text')
.attr('font-size', 12)
.attr('transform', (d, i) => `translate(19, 12)`)
.text((d) => d.name)
return svg.node()
}
width = 800
height = 900
margin = ({ top: 50, right: 5, bottom: 5, left: 5 });
color = d3.scaleOrdinal(d3.schemeCategory10)
d3 = require("d3@5")
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