d3.js_lines_multiple (with tooltip)
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d3.js_lines_multiple (with tooltip)
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| <!DOCTYPE html> | |
| <!--https://www.goodmarketing.club/guide/d3-js-multiple-lines-chart-w-line-by-line-code-explanations/--> | |
| <html> | |
| <head> | |
| <meta charset="utf-8"> | |
| <script src="https://d3js.org/d3.v7.min.js"></script> | |
| <script src="https://d3js.org/colorbrewer.v1.min.js"></script> | |
| <style> | |
| .axis path{ | |
| stroke:black; | |
| stroke-width:2px ; | |
| } | |
| .axis line{ | |
| stroke: black; | |
| stroke-width: 1.5px; | |
| } | |
| .axis text{ | |
| fill: black; | |
| font-weight: bold; | |
| font-size: 14px; | |
| font-family:"Arial Black", Gadget, sans-serif; | |
| } | |
| .legend text{ | |
| fill: black; | |
| font-family:"Arial Black", Gadget, sans-serif; | |
| } | |
| .tooltip { | |
| position: absolute; | |
| text-align: left; | |
| width: auto; | |
| height: auto; | |
| padding: 2px; | |
| font-size: 9px; | |
| background: white; | |
| -webkit-box-shadow: 0px 0px 4px rgba(0, 0, 0, 0.8); | |
| -moz-box-shadow: 0px 0px 4px rgba(0, 0, 0, 0.8); | |
| box-shadow: 0px 0px 4px rgba(0, 0, 0, 0.8); | |
| visibility: hidden; | |
| } | |
| </style> | |
| </head> | |
| <body> | |
| <svg width="1200" height="750" style="background-image: url('https://etc.usf.edu/presentations/backgrounds/grid/grid_04/1304m.gif');"> | |
| </svg> | |
| <script> | |
| const leftMargin=70, topMargin=30; | |
| // DataSource: eMarketer, March 2018 | |
| const data = [ | |
| { year: 2016, media: "Digital", spending: 72.2 }, | |
| { year: 2017, media: "Digital", spending: 90.39 }, | |
| { year: 2018, media: "Digital", spending: 107.3 }, | |
| { year: 2019, media: "Digital", spending: 125.75 }, | |
| { year: 2020, media: "Digital", spending: 142.23 }, | |
| { year: 2021, media: "Digital", spending: 156.43 }, | |
| { year: 2022, media: "Digital", spending: 170.48 }, | |
| { year: 2016, media: "TV", spending: 71.29 }, | |
| { year: 2017, media: "TV", spending: 70.22 }, | |
| { year: 2018, media: "TV", spending: 69.87 }, | |
| { year: 2019, media: "TV", spending: 69.17 }, | |
| { year: 2020, media: "TV", spending: 69.52 }, | |
| { year: 2021, media: "TV", spending: 68.82 }, | |
| { year: 2022, media: "TV", spending: 68.13 }, | |
| { year: 2016, media: "Print", spending: 25.49 }, | |
| { year: 2017, media: "Print", spending: 22.81 }, | |
| { year: 2018, media: "Print", spending: 20.05 }, | |
| { year: 2019, media: "Print", spending: 17.29 }, | |
| { year: 2020, media: "Print", spending: 15.19 }, | |
| { year: 2021, media: "Print", spending: 13.56 }, | |
| { year: 2022, media: "Print", spending: 12.38 }, | |
| { year: 2016, media: "Radio", spending: 14.33 }, | |
| { year: 2017, media: "Radio", spending: 14.33 }, | |
| { year: 2018, media: "Radio", spending: 14.41 }, | |
| { year: 2019, media: "Radio", spending: 14.43 }, | |
| { year: 2020, media: "Radio", spending: 14.46 }, | |
| { year: 2021, media: "Radio", spending: 14.49 }, | |
| { year: 2022, media: "Radio", spending: 14.52 }, | |
| { year: 2016, media: "Out-of-home", spending: 7.6 }, | |
| { year: 2017, media: "Out-of-home", spending: 7.75 }, | |
| { year: 2018, media: "Out-of-home", spending: 7.87 }, | |
| { year: 2019, media: "Out-of-home", spending: 7.95 }, | |
| { year: 2020, media: "Out-of-home", spending: 8.03 }, | |
| { year: 2021, media: "Out-of-home", spending: 8.11 }, | |
| { year: 2022, media: "Out-of-home", spending: 8.19 }, | |
| { year: 2016, media: "Directories", spending: 2.35 }, | |
| { year: 2017, media: "Directories", spending: 1.83 }, | |
| { year: 2018, media: "Directories", spending: 1.47 }, | |
| { year: 2019, media: "Directories", spending: 1.19 }, | |
| { year: 2020, media: "Directories", spending: 0.99 }, | |
| { year: 2021, media: "Directories", spending: 0.84 }, | |
| { year: 2022, media: "Directories", spending: 0.74 } | |
| ]; | |
| // format the year | |
| data.forEach(d => {d.year = d3.timeParse("%Y")(d.year)}); | |
| const dataGrouped = d3.group(data, d => d.media); // InternMap | |
| const KEY = 0, VALUE = 1; | |
| //console.log(dataGrouped); | |
| // xAxis | |
| const xExtent = d3.extent(data, d => d.year); | |
| const xScale = d3.scaleTime().domain(xExtent).range([leftMargin, 900]); | |
| const xAxis = d3.axisBottom().scale(xScale); | |
| // yAxis | |
| const yExtent = [0, d3.max(data,d=>d.spending) + topMargin]; | |
| const yScale = d3.scaleLinear().domain(yExtent).range([600, 0]); | |
| const yAxis = d3.axisLeft().scale(yScale).ticks(10); | |
| const tooltip = d3.select("body").append("div").attr("class", "tooltip"); | |
| d3.select("svg") | |
| .append("g") | |
| .attr("class", "axis") | |
| .attr("transform", "translate(0,620)") | |
| .call(xAxis) | |
| .append("text") | |
| .attr("x", (900+70)/2) //middle of the xAxis | |
| .attr("y", "50") // a little bit below xAxis | |
| .text("Year"); | |
| d3.select('svg') | |
| .append("g") | |
| .attr("class", "axis") | |
| .attr("transform", `translate(${leftMargin},20)`) //use variable in translate | |
| .call(yAxis) | |
| .append("text") | |
| .attr("transform", "rotate(-90)") | |
| .attr("x", "-150") | |
| .attr("y", "-50") | |
| .attr("text-anchor", "end") | |
| .text("US Media Ad Spending (Billions)"); | |
| d3.select("svg") | |
| .selectAll(".line") | |
| .append("g") | |
| .attr("class", "line") | |
| .data(dataGrouped) | |
| .enter() | |
| .append("path") | |
| .attr("fill", "none") | |
| .attr("stroke-width", 2) | |
| .attr("stroke", d => color(d[KEY])) | |
| .attr("d", d => line(d[VALUE])) | |
| .on("mouseover", (e, d) => { | |
| tooltip | |
| .style("visibility", "visible") | |
| .html("media: " + d[KEY]); | |
| }) | |
| .on("mousemove", (e, d) => { | |
| tooltip | |
| .style("top", (event.pageY - 20) + "px") | |
| .style("left", (event.pageX + 10) + "px"); | |
| }) | |
| .on("mouseout", d => { | |
| tooltip.style("visibility", "hidden"); | |
| }); | |
| function color(d) {return d3.scaleOrdinal().domain([...dataGrouped.keys()]).range(colorbrewer.Set2[6])(d)}; | |
| function line(d) {return d3.line() | |
| .x(d => xScale(d.year)) | |
| .y(d => yScale(d.spending)) | |
| .curve(d3.curveCardinal)(d)}; | |
| // curveLinear curveBasis curveCardinal | |
| </script> | |
| </body> | |
| </html> |
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