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<!DOCTYPE html> |
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<meta charset="utf-8"> |
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<style> |
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svg { |
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font: 10px sans-serif; |
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} |
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.axis path, |
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.axis line { |
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fill: none; |
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stroke: #000; |
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shape-rendering: crispEdges; |
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} |
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.y.axis path { |
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fill: none; |
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stroke: #000; |
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shape-rendering: crispEdges; |
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} |
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.brush .extent { |
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stroke: #fff; |
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fill-opacity: .125; |
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shape-rendering: crispEdges; |
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} |
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.line { |
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fill: none; |
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} |
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</style> |
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<body> |
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<script src="http://d3js.org/d3.v3.min.js"></script> |
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<script> |
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//setting up margin space around |
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var margin = {top: 10, right: 10, bottom: 100, left: 40}, |
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margin2 = {top: 430, right: 10, bottom: 20, left: 40}, |
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width = 960 - margin.left - margin.right, |
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height = 500 - margin.top - margin.bottom, |
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height2 = 500 - margin2.top - margin2.bottom; |
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//default 10 color palette |
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var color = d3.scale.category10(); |
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var parseDate = d3.time.format("%Y%m%d").parse; |
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//setting up actual size of graph within the margins |
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var x = d3.time.scale().range([0, width]), |
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x2 = d3.time.scale().range([0, width]), |
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y = d3.scale.linear().range([height, 0]), |
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y2 = d3.scale.linear().range([height2, 0]); |
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//x and y axis formatting |
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var xAxis = d3.svg.axis().scale(x).orient("bottom"), |
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xAxis2 = d3.svg.axis().scale(x2).orient("bottom"), |
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yAxis = d3.svg.axis().scale(y).orient("left"); |
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//thickness of graph lines x2 |
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var brush = d3.svg.brush() |
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.x(x2) |
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.on("brush", brush); |
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var line = d3.svg.line() |
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.defined(function(d) { return !isNaN(d.bande); }) // valid value |
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.interpolate("cubic") //makes graph slightly smoother |
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.x(function(d) { return x(d.date); }) |
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.y(function(d) { return y(d.bande); }); // x and y var for line |
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//refers to graph underneath with the scrollbar |
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var line2 = d3.svg.line() |
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.defined(function(d) { return !isNaN(d.bande); }) |
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.interpolate("cubic") |
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.x(function(d) {return x2(d.date); }) |
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.y(function(d) {return y2(d.bande); }); |
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//appending body to svg element to apply transformations |
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var svg = d3.select("body").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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svg.append("defs").append("clipPath") |
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.attr("id", "clip") |
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.append("rect") |
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.attr("width", width) |
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.attr("height", height); |
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/*unfinished: adapting tooltips from wdickerson's block: Tooltip on a Multi-line Chart */ |
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/* |
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const tooltip = d3.select('#tooltip') |
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const tooltipLine = svg.append('line') |
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//box with values in it |
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var tipBox = svg.append('rect') |
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.attr('width', width) |
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.attr('height', height) |
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.attr('opacity', 0) |
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.on('mousemove', drawTooltip) |
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.on('mouseout', removeTooltip); |
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//controlling when box isn't displayed |
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function removeTooltip() { |
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if (tooltip) tooltip.style('display', 'none'); |
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if (tooltipLine) tooltipLine.attr('stroke', 'none'); |
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} |
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function drawTooltip() { |
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const year = Math.floor((x.invert(d3.mouse(tipBox.node())[0]) + 5) / 10) * 10; |
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} |
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*/ |
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//margins of bottom graph |
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var focus = svg.append("g") |
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.attr("transform", "translate(" + margin.left + "," + margin.top + ")"); |
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var context = svg.append("g") |
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.attr("transform", "translate(" + margin2.left + "," + margin2.top + ")"); |
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//parsing in file |
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d3.csv("bandes - Sheet1.csv", function(error, data) { |
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color.domain(d3.keys(data[0]).filter(function(key) { return key !== "date"; })); |
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data.forEach(function(d) { |
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d.date = parseDate(d.date); |
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}); |
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var sources = color.domain().map(function(name) { |
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return { |
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name: name, |
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values: data.map(function(d) { |
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return {date: d.date, bande: +d[name]}; |
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}) |
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}; |
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}); |
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x.domain(d3.extent(data, function(d) { return d.date; })); |
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y.domain([d3.min(sources, function(c) { return d3.min(c.values, function(v) { return v.bande; }); }), |
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d3.max(sources, function(c) { return d3.max(c.values, function(v) { return v.bande; }); }) ]); |
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x2.domain(x.domain()); |
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y2.domain(y.domain()); |
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//adding focus lines to mini bottom chart to controll scrollbar |
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var focuslineGroups = focus.selectAll("g") |
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.data(sources) |
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.enter().append("g"); |
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var focuslines = focuslineGroups.append("path") |
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.attr("class","line") |
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.attr("d", function(d) { return line(d.values); }) |
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.style("stroke", function(d) {return color(d.name);}) |
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.attr("clip-path", "url(#clip)"); |
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focus.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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focus.append("g") |
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.attr("class", "y axis") |
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.call(yAxis); |
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var contextlineGroups = context.selectAll("g") |
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.data(sources) |
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.enter().append("g"); |
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var contextLines = contextlineGroups.append("path") |
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.attr("class", "line") |
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.attr("d", function(d) { return line2(d.values); }) |
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.style("stroke", function(d) {return color(d.name);}) |
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.attr("clip-path", "url(#clip)"); |
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context.append("g") |
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.attr("class", "x axis") |
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.attr("transform", "translate(0," + height2 + ")") |
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.call(xAxis2); |
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context.append("g") |
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.attr("class", "x brush") |
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.call(brush) |
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.selectAll("rect") |
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.attr("y", -6) |
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.attr("height", height2 + 6); |
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}); |
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//brush handling function |
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function brush() { |
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x.domain(brush.empty() ? x2.domain() : brush.extent()); |
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focus.selectAll("path.line").attr("d", function(d) {return line(d.values)}); |
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focus.select(".x.axis").call(xAxis); |
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focus.select(".y.axis").call(yAxis); |
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} |
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</script> |
