MBA Candidate at Columbia, Software Engineer, Former Managing Web Editor @ The Michigan Daily. Building things I can see.
viewof selection = {
const svg = d3.select(DOM.svg(width, height))
.property("value", []);
svg.append("g")
.call(xAxis);
svg.append("g")
.call(yAxis);
const dot = svg.append("g")
.attr("fill", "none")
.selectAll("g")
.data(freezingData)
.join("circle")
.attr("transform", d => `translate(${x(d[xField])},${y(d[yField])})`)
.attr("stroke", d => d.closure == "False" ? "steelblue" : "#D95D5D")
.attr("stroke-width", d => d.closure == "False" ? 1.5 : 4)
.attr("r", d => d.closure == "False" ? 3 : 7)
.attr("opacity", d => d.closure == "False" ? 0.4 : 0.8)
svg.append("g")
.call(d3.brush()
.extent([[margin.left, margin.top], [width - margin.right, height - margin.bottom]])
.on("start brush end", brushed));
function brushed() {
let value = [];
if (d3.event.selection) {
const [[x0, y0], [x1, y1]] = d3.event.selection;
value = data.filter(d => x0 <= x(d[xField]) && x(d[xField]) < x1 && y0 <= y(d[yField]) && y(d[yField]) < y1);
}
svg.property("value", value).dispatch("input");
}
return svg.node();
}
selection
height = 600
margin = ({top: 20, right: 30, bottom: 30, left: 40})
x = d3.scaleLinear()
.domain(d3.extent(freezingData, d => d[xField])).nice()
.range([margin.left, width - margin.right])
y = d3.scaleLinear()
.domain(d3.extent(freezingData, d => d[yField]))
.range([height - margin.bottom, margin.top])
xAxis = g => g
.attr("transform", `translate(0,${0 + margin.top})`)
.call(d3.axisTop(x))
.call(g => g.select(".domain").remove())
.call(g => g.append("text")
.attr("x", width - margin.right)
.attr("y", -4)
.attr("fill", "#000")
.attr("font-weight", "bold")
.attr("text-anchor", "end"))
yAxis = g => g
.attr("transform", `translate(${margin.left},0)`)
.call(d3.axisLeft(
y))
.call(g => g.select(".domain").remove())
.call(g => g.select(".tick:last-of-type text").clone()
.attr("x", 4)
.attr("text-anchor", "start")
.attr("font-weight", "bold"))
d3 = require("d3@5")
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