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<!DOCTYPE html> |
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<meta charset="utf-8"> |
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<style> |
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body { |
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font: 10px sans-serif; |
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} |
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.chart { |
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background: #fff; |
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} |
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p { |
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font: 12px helvetica; |
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} |
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.axis path, .axis line { |
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fill: none; |
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stroke: #000; |
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stroke-width: 2px; |
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shape-rendering: crispEdges; |
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} |
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button { |
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position: absolute; |
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right: 50px; |
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top: 10px; |
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} |
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</style> |
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<body> |
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<script src="http://d3js.org/d3.v2.js"></script> |
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<div class="chart"> |
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</div> |
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<script> |
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chart("data.csv", "orange"); |
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var datearray = []; |
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var colorrange = []; |
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function chart(csvpath, color) { |
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if (color == "blue") { |
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colorrange = ["#045A8D", "#2B8CBE", "#74A9CF", "#A6BDDB", "#D0D1E6", "#F1EEF6"]; |
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} |
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else if (color == "pink") { |
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colorrange = ["#980043", "#DD1C77", "#DF65B0", "#C994C7", "#D4B9DA", "#F1EEF6"]; |
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} |
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else if (color == "orange") { |
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colorrange = ["#B30000", "#E34A33", "#FC8D59", "#FDBB84", "#FDD49E", "#FEF0D9"]; |
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} |
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strokecolor = colorrange[0]; |
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var format = d3.time.format("%m/%d/%y"); |
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var margin = {top: 20, right: 40, bottom: 30, left: 30}; |
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var width = document.body.clientWidth - margin.left - margin.right; |
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var height = 400 - margin.top - margin.bottom; |
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var tooltip = d3.select("body") |
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.append("div") |
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.attr("class", "remove") |
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.style("position", "absolute") |
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.style("z-index", "20") |
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.style("visibility", "hidden") |
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.style("top", "30px") |
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.style("left", "55px"); |
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var x = d3.time.scale() |
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.range([0, width]); |
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var y = d3.scale.linear() |
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.range([height-10, 0]); |
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var z = d3.scale.ordinal() |
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.range(colorrange); |
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var xAxis = d3.svg.axis() |
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.scale(x) |
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.orient("bottom") |
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.ticks(d3.time.weeks); |
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var yAxis = d3.svg.axis() |
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.scale(y); |
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var yAxisr = d3.svg.axis() |
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.scale(y); |
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var stack = d3.layout.stack() |
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.offset("silhouette") |
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.values(function(d) { return d.values; }) |
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.x(function(d) { return d.date; }) |
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.y(function(d) { return d.value; }); |
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var nest = d3.nest() |
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.key(function(d) { return d.key; }); |
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var area = d3.svg.area() |
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.interpolate("cardinal") |
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.x(function(d) { return x(d.date); }) |
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.y0(function(d) { return y(d.y0); }) |
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.y1(function(d) { return y(d.y0 + d.y); }); |
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var svg = d3.select(".chart").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", "translate(" + margin.left + "," + margin.top + ")"); |
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var graph = d3.csv(csvpath, function(data) { |
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data.forEach(function(d) { |
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d.date = format.parse(d.date); |
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d.value = +d.value; |
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}); |
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var layers = stack(nest.entries(data)); |
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x.domain(d3.extent(data, function(d) { return d.date; })); |
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y.domain([0, d3.max(data, function(d) { return d.y0 + d.y; })]); |
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svg.selectAll(".layer") |
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.data(layers) |
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.enter().append("path") |
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.attr("class", "layer") |
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.attr("d", function(d) { return area(d.values); }) |
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.style("fill", function(d, i) { return z(i); }); |
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svg.append("g") |
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.attr("class", "x axis") |
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.attr("transform", "translate(0," + height + ")") |
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.call(xAxis); |
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svg.append("g") |
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.attr("class", "y axis") |
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.attr("transform", "translate(" + width + ", 0)") |
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.call(yAxis.orient("right")); |
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svg.append("g") |
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.attr("class", "y axis") |
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.call(yAxis.orient("left")); |
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svg.selectAll(".layer") |
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.attr("opacity", 1) |
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.on("mouseover", function(d, i) { |
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svg.selectAll(".layer").transition() |
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.duration(250) |
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.attr("opacity", function(d, j) { |
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return j != i ? 0.6 : 1; |
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})}) |
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.on("mousemove", function(d, i) { |
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mousex = d3.mouse(this); |
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mousex = mousex[0]; |
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var invertedx = x.invert(mousex); |
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invertedx = invertedx.getMonth() + invertedx.getDate(); |
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var selected = (d.values); |
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for (var k = 0; k < selected.length; k++) { |
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datearray[k] = selected[k].date |
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datearray[k] = datearray[k].getMonth() + datearray[k].getDate(); |
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} |
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mousedate = datearray.indexOf(invertedx); |
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pro = d.values[mousedate].value; |
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d3.select(this) |
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.classed("hover", true) |
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.attr("stroke", strokecolor) |
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.attr("stroke-width", "0.5px"), |
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tooltip.html( "<p>" + d.key + "<br>" + pro + "</p>" ).style("visibility", "visible"); |
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}) |
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.on("mouseout", function(d, i) { |
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svg.selectAll(".layer") |
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.transition() |
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.duration(250) |
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.attr("opacity", "1"); |
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d3.select(this) |
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.classed("hover", false) |
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.attr("stroke-width", "0px"), tooltip.html( "<p>" + d.key + "<br>" + pro + "</p>" ).style("visibility", "hidden"); |
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}) |
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var vertical = d3.select(".chart") |
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.append("div") |
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.attr("class", "remove") |
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.style("position", "absolute") |
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.style("z-index", "19") |
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.style("width", "1px") |
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.style("height", "380px") |
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.style("top", "10px") |
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.style("bottom", "30px") |
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.style("left", "0px") |
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.style("background", "#fff"); |
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d3.select(".chart") |
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.on("mousemove", function(){ |
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mousex = d3.mouse(this); |
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mousex = mousex[0] + 5; |
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vertical.style("left", mousex + "px" )}) |
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.on("mouseover", function(){ |
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mousex = d3.mouse(this); |
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mousex = mousex[0] + 5; |
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vertical.style("left", mousex + "px")}); |
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}); |
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} |
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</script> |
I checked in some updates here: https://gist.github.com/kielni/8239732
I changed the y axis so that it's symmetric around the center instead of increasing from bottom to top, since it's the thickness of the stream that matters, not the height.
I made the tooltip follow the mouse, since it was hard to notice the values in the top left corner.