| license: mit |
This is a follow on from the favorite simple tooltip graph used as an example in the book D3 Tips and Tricks.
It impliments a more complex example than the simple version and is designed to illustrate additional things you can do with the technique. It should be taken in context with the text of the book which can be downloaded for free from Leanpub.
forked from d3noob's block: Favorite tooltip (complex version)
| date | close | |
|---|---|---|
| 26-Mar-12 | 606.98 | |
| 27-Mar-12 | 614.48 | |
| 28-Mar-12 | 617.62 | |
| 29-Mar-12 | 609.86 | |
| 30-Mar-12 | 599.55 | |
| 2-Apr-12 | 618.63 | |
| 3-Apr-12 | 629.32 | |
| 4-Apr-12 | 624.31 | |
| 5-Apr-12 | 633.68 | |
| 9-Apr-12 | 636.23 | |
| 10-Apr-12 | 628.44 | |
| 11-Apr-12 | 626.20 | |
| 12-Apr-12 | 622.77 | |
| 13-Apr-12 | 605.23 | |
| 16-Apr-12 | 580.13 | |
| 17-Apr-12 | 543.70 | |
| 18-Apr-12 | 443.34 | |
| 19-Apr-12 | 345.44 | |
| 20-Apr-12 | 234.98 | |
| 23-Apr-12 | 166.70 | |
| 24-Apr-12 | 130.28 | |
| 25-Apr-12 | 99.00 | |
| 26-Apr-12 | 89.70 | |
| 27-Apr-12 | 67.00 | |
| 30-Apr-12 | 53.98 | |
| 1-May-12 | 58.13 |
| <!DOCTYPE html> | |
| <meta charset="utf-8"> | |
| <style> /* set the CSS */ | |
| body { font: 12px Arial;} | |
| path { | |
| stroke: steelblue; | |
| stroke-width: 2; | |
| fill: none; | |
| } | |
| .axis path, | |
| .axis line { | |
| fill: none; | |
| stroke: grey; | |
| stroke-width: 1; | |
| shape-rendering: crispEdges; | |
| } | |
| </style> | |
| <body> | |
| <!-- load the d3.js library --> | |
| <script src="http://d3js.org/d3.v3.min.js"></script> | |
| <script> | |
| // Set the dimensions of the canvas / graph | |
| var margin = {top: 30, right: 20, bottom: 30, left: 50}, | |
| width = 600 - margin.left - margin.right, | |
| height = 270 - margin.top - margin.bottom; | |
| // Parse the date / time | |
| var parseDate = d3.time.format("%d-%b-%y").parse, | |
| formatDate = d3.time.format("%d-%b"), | |
| bisectDate = d3.bisector(function(d) { return d.date; }).left; | |
| // Set the ranges | |
| var x = d3.time.scale().range([0, width]); | |
| var y = d3.scale.linear().range([height, 0]); | |
| // Define the axes | |
| var xAxis = d3.svg.axis().scale(x) | |
| .orient("bottom").ticks(5); | |
| var yAxis = d3.svg.axis().scale(y) | |
| .orient("left").ticks(5); | |
| // Define the line | |
| var valueline = d3.svg.line() | |
| .x(function(d) { return x(d.date); }) | |
| .y(function(d) { return y(d.close); }); | |
| // Adds the svg canvas | |
| 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 + ")"); | |
| var lineSvg = svg.append("g"); | |
| var focus = svg.append("g") | |
| .style("display", "none"); | |
| // Get the data | |
| d3.csv("atad.csv", function(error, data) { | |
| data.forEach(function(d) { | |
| d.date = parseDate(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; })]); | |
| // Add the valueline path. | |
| lineSvg.append("path") | |
| .attr("class", "line") | |
| .attr("d", valueline(data)); | |
| // Add the X Axis | |
| svg.append("g") | |
| .attr("class", "x axis") | |
| .attr("transform", "translate(0," + height + ")") | |
| .call(xAxis); | |
| // Add the Y Axis | |
| svg.append("g") | |
| .attr("class", "y axis") | |
| .call(yAxis); | |
| // append the x line | |
| focus.append("line") | |
| .attr("class", "x") | |
| .style("stroke", "blue") | |
| .style("stroke-dasharray", "3,3") | |
| .style("opacity", 0.5) | |
| .attr("y1", 0) | |
| .attr("y2", height); | |
| // append the y line | |
| focus.append("line") | |
| .attr("class", "y") | |
| .style("stroke", "blue") | |
| .style("stroke-dasharray", "3,3") | |
| .style("opacity", 0.5) | |
| .attr("x1", width) | |
| .attr("x2", width); | |
| // append the x line_up | |
| focus.append("line") | |
| .attr("class", "x_track_line_up") | |
| .style("stroke", "black") | |
| .style("stroke", "3,3") | |
| .style("opacity", 0.9) | |
| .attr("y1", 0) | |
| .attr("y2", height); | |
| // append the circle at the intersection | |
| focus.append("circle") | |
| .attr("class", "y") | |
| .style("fill", "none") | |
| .style("stroke", "blue") | |
| .attr("r", 4); | |
| // place the value at the intersection | |
| focus.append("text") | |
| .attr("class", "y1") | |
| .style("stroke", "white") | |
| .style("stroke-width", "3.5px") | |
| .style("opacity", 0.8) | |
| .attr("dx", 8) | |
| .attr("dy", "-.3em"); | |
| focus.append("text") | |
| .attr("class", "y2") | |
| .attr("dx", 8) | |
| .attr("dy", "-.3em"); | |
| // place the date at the intersection | |
| focus.append("text") | |
| .attr("class", "y3") | |
| .style("stroke", "white") | |
| .style("stroke-width", "3.5px") | |
| .style("opacity", 0.8) | |
| .attr("dx", 8) | |
| .attr("dy", "1em"); | |
| focus.append("text") | |
| .attr("class", "y4") | |
| .attr("dx", 8) | |
| .attr("dy", "1em"); | |
| // append the rectangle to capture mouse | |
| svg.append("rect") | |
| .attr("width", width) | |
| .attr("height", height) | |
| .style("fill", "none") | |
| .style("pointer-events", "all") | |
| .on("mouseover", function() { focus.style("display", null); }) | |
| .on("mouseout", function() { focus.style("display", "none"); }) | |
| .on("mousemove", mousemove); | |
| function mousemove() { | |
| var x0 = x.invert(d3.mouse(this)[0]), | |
| i = bisectDate(data, x0, 1), | |
| d0 = data[i - 1], | |
| d1 = data[i], | |
| d = x0 - d0.date > d1.date - x0 ? d1 : d0; | |
| focus.select("circle.y") | |
| .attr("transform", | |
| "translate(" + x(d.date) + "," + | |
| y(d.close) + ")"); | |
| focus.select("text.y1") | |
| .attr("transform", | |
| "translate(" + x(d.date) + "," + | |
| y(d.close) + ")") | |
| .text(d.close); | |
| focus.select("text.y2") | |
| .attr("transform", | |
| "translate(" + x(d.date) + "," + | |
| y(d.close) + ")") | |
| .text(d.close); | |
| focus.select("text.y3") | |
| .attr("transform", | |
| "translate(" + x(d.date) + "," + | |
| y(d.close) + ")") | |
| .text(formatDate(d.date)); | |
| focus.select("text.y4") | |
| .attr("transform", | |
| "translate(" + x(d.date) + "," + | |
| y(d.close) + ")") | |
| .text(formatDate(d.date)); | |
| focus.select(".x") | |
| .attr("transform", | |
| "translate(" + x(d.date) + "," + | |
| y(d.close) + ")") | |
| .attr("y2", height - y(d.close)); | |
| focus.select(".y") | |
| .attr("transform", | |
| "translate(" + width * -1 + "," + | |
| y(d.close) + ")") | |
| .attr("x2", width + width); | |
| focus.select(".x_track_line_up") | |
| .attr("x1", x(d.date)) | |
| .attr("x2", x(d.date)) | |
| .attr("y2", y(d.close)); | |
| } | |
| }); | |
| </script> | |
| </body> |