<!DOCTYPE html> <meta charset="utf-8"> <style> /* set the CSS */ .line { fill: none; stroke: steelblue; stroke-width: 2px; } .area { fill: url(#area-gradient); stroke-width: 0px; } .grid .tick { stroke: black; opacity: 0.7; stroke-dasharray: 5,5; } .grid path { stroke-width: 3; } </style> <body> <!-- load the d3.js library --> <script src="https://d3js.org/d3.v4.min.js"></script> <script> function make_x_axis() { return d3.svg.axis() .scale(x) .orient("bottom") .ticks(5) .tickSize(-width, 0, 0) .tickFormat("") } function make_y_axis() { return d3.svg.axis() .scale(y) .orient("left") .ticks(5) } // set the dimensions and margins of the graph var margin = {top: 20, right: 20, bottom: 30, left: 50}, width = 960 - margin.left - margin.right, height = 500 - margin.top - margin.bottom; // parse the date / time var parseTime = d3.timeParse("%d-%b-%y"); // set the ranges var x = d3.scaleTime().range([0, width]); var y = d3.scaleLinear().range([height, 0]); // define the area var area = d3.area() .x(function(d) { return x(d.date); }) .y0(height) .y1(function(d) { return y(d.close); }); // define the line var valueline = d3.line() .x(function(d) { return x(d.date); }) .y(function(d) { return y(d.close); }); // append the svg obgect to the body of the page // appends a 'group' element to 'svg' // moves the 'group' element to the top left margin var svg = d3.select("body").append("svg") .attr("width", width + margin.left + margin.right) .attr("height", height + margin.top + margin.bottom) .append("g") .attr("transform", "translate(" + margin.left + "," + margin.top + ")"); // get the data d3.csv("https://hyllesen.github.io/test.csv", function(error, data) { if (error) throw error; // format the data data.forEach(function(d) { d.date = parseTime(d.date); d.close = +d.close; }); // scale the range of the data x.domain(d3.extent(data, function(d) { return d.date; })); y.domain([0, d3.max(data, function(d) { return d.close; })]); // set the gradient svg.append("linearGradient") .attr("id", "area-gradient") .attr("gradientUnits", "userSpaceOnUse") .attr("x1", 0).attr("y1", y(0)) .attr("x2", 0).attr("y2", y(1000)) .selectAll("stop") .data([ {offset: "0%", color: "#278CCB"}, {offset: "80%", color: "#365C71"} ]) .enter().append("stop") .attr("offset", function(d) { return d.offset; }) .attr("stop-color", function(d) { return d.color; }); // add the area svg.append("path") .data([data]) .attr("class", "area") .attr("d", area); // add the valueline path. svg.append("path") .data([data]) .attr("class", "line") .attr("d", valueline); // add the X Axis svg.append("g") .attr("transform", "translate(0," + height + ")") .call(d3.axisBottom(x) ); // add the Y Axis svg.append("g") .attr("class", "grid") .call(d3.axisLeft(y) .tickSize(-width, 0, 0) ); }); </script> </body>
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