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<!DOCTYPE html> |
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<meta charset="utf-8"> |
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<style> |
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body { font: 12px Arial;} |
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path { |
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stroke: steelblue; |
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stroke-width: 2; |
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fill: none; |
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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: grey; |
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stroke-width: 1; |
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shape-rendering: crispEdges; |
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} |
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.legend { |
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font-size: 16px; |
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font-weight: bold; |
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text-anchor: start; |
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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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var margin = {top: 30, right: 40, bottom: 70, left: 50}, |
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width = 600 - margin.left - margin.right, |
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height = 300 - margin.top - margin.bottom; |
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var parseDate = d3.time.format("%d-%b-%y").parse; |
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var x = d3.time.scale().range([0, width]); |
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var y0 = d3.scale.linear().range([height, 0]); |
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var y1 = d3.scale.linear().range([height, 0]); |
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var xAxis = d3.svg.axis().scale(x) |
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.orient("bottom").ticks(5); |
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var yAxisLeft = d3.svg.axis().scale(y0) |
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.orient("left").ticks(5); |
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var yAxisRight = d3.svg.axis().scale(y1) |
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.orient("right").ticks(5); |
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var valueline = d3.svg.line() |
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.x(function(d) { return x(d.date); }) |
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.y(function(d) { return y0(d.close); }); |
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var valueline2 = d3.svg.line() |
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.x(function(d) { return x(d.date); }) |
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.y(function(d) { return y1(d.open); }); |
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var svg = d3.select("body") |
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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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var data = [ |
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{"date":"9-Apr-12","close":436,"open":9.04}, |
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{"date":"7-Apr-12","close":221,"open":4.02}, |
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{"date":"5-Apr-12","close":113,"open":9.02}, |
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{"date":"4-Apr-12","close":64,"open":32.05}, |
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{"date":"3-Apr-12","close":29,"open":46.03}, |
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{"date":"2-Apr-12","close":18,"open":51.03} |
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]; |
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// Get the data |
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data.forEach(function(d) { |
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d.date = parseDate(d.date); |
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d.close = +d.close; |
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d.open = +d.open; |
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}); |
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// Scale the range of the data |
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x.domain(d3.extent(data, function(d) { return d.date; })); |
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y0.domain([0, d3.max(data, function(d) { |
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return Math.max(d.close); })]); |
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y1.domain([0, d3.max(data, function(d) { |
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return Math.max(d.open); })]); |
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svg.append("path") |
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.attr("class", "line") |
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.attr("id", "blueLine") |
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.attr("d", valueline(data)); |
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svg.append("path") |
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.attr("class", "line") |
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.style("stroke", "red") |
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.attr("id", "redLine") |
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.attr("d", valueline2(data)); |
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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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// edit the Y Axis Left |
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svg.append("g") |
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.attr("class", "y axis") |
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.style("fill", "steelblue") |
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.attr("id", "blueAxis") |
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.call(yAxisLeft); |
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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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.style("fill", "red") |
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.attr("id", "redAxis") |
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.call(yAxisRight); |
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// Add the blue line title |
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svg.append("text") |
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.attr("x", 0) |
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.attr("y", height + margin.top + 10) |
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.attr("class", "legend") |
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.style("fill", "steelblue") |
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.on("click", function(){ |
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// Determine if current line is visible |
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var active = blueLine.active ? false : true, |
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newOpacity = active ? 0 : 1; |
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// Hide or show the elements |
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d3.select("#blueLine").style("opacity", newOpacity); |
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d3.select("#blueAxis").style("opacity", newOpacity); |
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// Update whether or not the elements are active |
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blueLine.active = active; |
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}) |
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.text("Blue Line"); |
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// Add the red line title |
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svg.append("text") |
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.attr("x", 0) |
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.attr("y", height + margin.top + 30) |
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.attr("class", "legend") |
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.style("fill", "red") |
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.on("click", function(){ |
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// Determine if current line is visible |
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var active = redLine.active ? false : true , |
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newOpacity = active ? 0 : 1; |
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// Hide or show the elements |
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d3.select("#redLine").style("opacity", newOpacity); |
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d3.select("#redAxis").style("opacity", newOpacity); |
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// Update whether or not the elements are active |
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redLine.active = active; |
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}) |
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.text("Red Line"); |
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</script> |
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</body> |
