95 lines
No EOL
2.6 KiB
JavaScript
95 lines
No EOL
2.6 KiB
JavaScript
const queryString = window.location.search;
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var margin = { top: 30, right: 120, bottom: 30, left: 50 },
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width = 960 - margin.left - margin.right,
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height = 500 - margin.top - margin.bottom,
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tooltip = { width: 100, height: 100, x: 10, y: -30 };
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var parseDate = d3.timeParse("%Y-%m-%d %H:%M"),
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bisectDate = d3.bisector(function(d) { return d.date; }).left,
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formatValue = d3.format(","),
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dateFormatter = d3.timeFormat("%d.%m.%y %H:%M");
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var x = d3.scaleTime()
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.range([0, width]);
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var y = d3.scaleLinear()
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.range([height, 0]);
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var valueline = d3.line()
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.x(function(d) { return x(d.date); })
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.y(function(d) { return y(d.value); });
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var div = d3.select("body").append("div")
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.attr("class", "tooltip")
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.style("opacity", 0);
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var xAxis = d3.axisBottom(x)
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.tickFormat(dateFormatter);
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var yAxis = d3.axisLeft(y)
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.tickFormat(d3.format("s"))
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var line = d3.line()
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.x(function(d) { return x(d.date); })
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.y(function(d) { return y(d.likes); });
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var svg = d3.select("#my_dataviz")
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.append("svg")
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.attr("width", width + margin.left + margin.right)
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.attr("height", height + margin.top + margin.bottom)
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.append("g")
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.attr("transform",
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"translate(" + margin.left + "," + margin.top + ")");
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d3.csv("csv/" + queryString).then(function(data) {
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data.forEach(function(d) {
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d.date = parseDate(d.date);
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d.value = d.value;
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});
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data.sort(function(a, b) {
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return a.date - b.date;
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});
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x.domain([data[0].date, data[data.length - 1].date]);
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y.domain(d3.extent(data, function(d) { return d.value; }));
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// add the valueline path.
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svg.append("path")
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.data([data])
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.attr("class", "line")
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.attr("d", valueline);
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// add the dots with tooltips
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svg.selectAll("dot")
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.data(data)
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.enter().append("circle")
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.attr("r", 5)
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.attr("cx", function(d) { return x(d.date); })
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.attr("cy", function(d) { return y(d.value); })
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.on("mouseover", function(event,d) {
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div.transition()
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.duration(200)
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.style("opacity", .9);
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div.html(dateFormatter(d.date) + "<br/>" + d.value)
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.style("left", (event.pageX) + "px")
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.style("top", (event.pageY - 28) + "px");
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})
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.on("mouseout", function(d) {
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div.transition()
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.duration(500)
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.style("opacity", 0);
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});
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// add the X Axis
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svg.append("g")
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.attr("transform", "translate(0," + height + ")")
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.call(d3.axisBottom(x));
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// add the Y Axis
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svg.append("g")
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.call(d3.axisLeft(y));
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}); |