Made with d3.annotation. An example showing how you can dynamically change the annotation type and add hover events.
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November 28, 2019 00:56
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d3-annotation: Tooltip
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| .DS_Store |
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| // line chart code: https://bl.ocks.org/d3noob/402dd382a51a4f6eea487f9a35566de0 | |
| // time series from: http://bl.ocks.org/mbostock/3883245 | |
| // set the dimensions and margins of the graph | |
| const margin = {top: 20, right: 20, bottom: 30, left: 50}, | |
| height = 500 - margin.top - margin.bottom; | |
| const maxWidth = 860 - margin.left - margin.right; | |
| let width = 860 - margin.left - margin.right; | |
| const parseTime = d3.timeParse("%d-%b-%y"); | |
| const x = d3.scaleTime().range([0, width]); | |
| const y = d3.scaleLinear().range([height, 0]); | |
| const valueline = d3.line() | |
| .x(d => x(d.date)) | |
| .y(d => y(d.close)); | |
| const svg = d3.select("svg") | |
| .attr("width", 960) | |
| .attr("height", height + margin.top + margin.bottom) | |
| .append("g") | |
| .attr("transform", | |
| "translate(" + margin.left + "," + margin.top + ")"); | |
| d3.tsv("data.hidden.tsv", function(error, data) { | |
| if (error) throw error; | |
| data.forEach(function(d) { | |
| d.date = parseTime(d.date); | |
| d.close = +d.close; | |
| }); | |
| x.domain(d3.extent(data, d => d.date)); | |
| y.domain([0, d3.max(data, d => d.close)]); | |
| svg.append("path") | |
| .data([data]) | |
| .attr("class", "line") | |
| .attr("d", valueline); | |
| svg.append("g") | |
| .attr("class", "x-axis") | |
| .attr("transform", "translate(0," + height + ")") | |
| .call(d3.axisBottom(x)); | |
| svg.append("g") | |
| .call(d3.axisLeft(y)); | |
| //Add annotations | |
| const labels = [ | |
| { | |
| data: {date: "9-Apr-12", close: 636.23}, | |
| dy: 37, | |
| dx: -142 | |
| }, | |
| { | |
| data: {date: "26-Feb-08", close: 119.15}, | |
| dy: -137, | |
| dx: 0, | |
| note: { align: "middle"} | |
| }, | |
| { | |
| data: {date: "18-Sep-09", close: 185.02}, | |
| dy: 37, | |
| dx: 42, | |
| } | |
| ].map(l => { | |
| l.note = Object.assign({}, l.note, { title: `Close: ${l.data.close}`, | |
| label: `${l.data.date}`}) | |
| l.subject = { radius: 4} | |
| return l | |
| }) | |
| const timeFormat = d3.timeFormat("%d-%b-%y") | |
| window.makeAnnotations = d3.annotation() | |
| .annotations(labels) | |
| .type(d3.annotationCalloutCircle) | |
| .accessors({ x: d => x(parseTime(d.date)), | |
| y: d => y(d.close) | |
| }) | |
| .accessorsInverse({ | |
| date: d => timeFormat(x.invert(d.x)), | |
| close: d => y.invert(d.y) | |
| }) | |
| .on('subjectover', function(annotation) { | |
| annotation.type.a.selectAll("g.annotation-connector, g.annotation-note") | |
| .classed("hidden", false) | |
| }) | |
| .on('subjectout', function(annotation) { | |
| annotation.type.a.selectAll("g.annotation-connector, g.annotation-note") | |
| .classed("hidden", true) | |
| }) | |
| svg.append("g") | |
| .attr("class", "annotation-test") | |
| .call(makeAnnotations) | |
| svg.selectAll("g.annotation-connector, g.annotation-note") | |
| .classed("hidden", true) | |
| }) |
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| <!DOCTYPE html> | |
| <html lang="en"> | |
| <head> | |
| <meta charset="utf-8"> | |
| <link href='https://fonts.googleapis.com/css?family=Lato:300,900' rel='stylesheet' type='text/css'> | |
| <style> | |
| body{ | |
| background-color: whitesmoke; | |
| } | |
| :root { | |
| --accent-color: #E8336D; | |
| } | |
| svg { | |
| background-color: white; | |
| font-family: 'Lato'; | |
| } | |
| path.line { | |
| fill: none; | |
| stroke: lightgrey; | |
| stroke-width: 1px; | |
| } | |
| .annotation path { | |
| stroke: var(--accent-color); | |
| fill: none; | |
| } | |
| .annotation path.connector-arrow, | |
| .title text, .annotation text, | |
| .annotation.callout.circle .annotation-subject path{ | |
| fill: var(--accent-color); | |
| } | |
| .annotation-note-bg { | |
| fill: rgba(255, 255, 255, 0); | |
| } | |
| .annotation-note-title { | |
| font-weight: bold; | |
| } | |
| .annotation.xythreshold { | |
| cursor: move; | |
| } | |
| .hidden { | |
| display: none; | |
| } | |
| text.hover { | |
| font-size: .7em; | |
| } | |
| text.title { | |
| font-size: 1.1em; | |
| } | |
| </style> | |
| </head> | |
| <body> | |
| <svg width=960 height=500> | |
| <text class="title" x=70 y=50>Hover over the dots to see more information</text> | |
| <text x=70 y=80>Uses d3.annotationCalloutCircle to make a tooltip</text> | |
| </svg> | |
| <script src="https://d3js.org/d3.v4.js"></script> | |
| <script src="https://rawgit.com/susielu/d3-annotation/master/d3-annotation.min.js"></script> | |
| <script src="index.js"></script> | |
| </body> | |
| </html> |
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| "use strict"; | |
| // line chart code: https://bl.ocks.org/d3noob/402dd382a51a4f6eea487f9a35566de0 | |
| // time series from: http://bl.ocks.org/mbostock/3883245 | |
| // set the dimensions and margins of the graph | |
| var margin = { top: 20, right: 20, bottom: 30, left: 50 }, | |
| height = 500 - margin.top - margin.bottom; | |
| var maxWidth = 860 - margin.left - margin.right; | |
| var width = 860 - margin.left - margin.right; | |
| var parseTime = d3.timeParse("%d-%b-%y"); | |
| var _x = d3.scaleTime().range([0, width]); | |
| var _y = d3.scaleLinear().range([height, 0]); | |
| var valueline = d3.line().x(function (d) { | |
| return _x(d.date); | |
| }).y(function (d) { | |
| return _y(d.close); | |
| }); | |
| var svg = d3.select("svg").attr("width", 960).attr("height", height + margin.top + margin.bottom).append("g").attr("transform", "translate(" + margin.left + "," + margin.top + ")"); | |
| d3.tsv("data.hidden.tsv", function (error, data) { | |
| if (error) throw error; | |
| data.forEach(function (d) { | |
| d.date = parseTime(d.date); | |
| d.close = +d.close; | |
| }); | |
| _x.domain(d3.extent(data, function (d) { | |
| return d.date; | |
| })); | |
| _y.domain([0, d3.max(data, function (d) { | |
| return d.close; | |
| })]); | |
| svg.append("path").data([data]).attr("class", "line").attr("d", valueline); | |
| svg.append("g").attr("class", "x-axis").attr("transform", "translate(0," + height + ")").call(d3.axisBottom(_x)); | |
| svg.append("g").call(d3.axisLeft(_y)); | |
| //Add annotations | |
| var labels = [{ | |
| data: { date: "9-Apr-12", close: 636.23 }, | |
| dy: 37, | |
| dx: -142 | |
| }, { | |
| data: { date: "26-Feb-08", close: 119.15 }, | |
| dy: -137, | |
| dx: 0, | |
| note: { align: "middle" } | |
| }, { | |
| data: { date: "18-Sep-09", close: 185.02 }, | |
| dy: 37, | |
| dx: 42 | |
| }].map(function (l) { | |
| l.note = Object.assign({}, l.note, { title: "Close: " + l.data.close, | |
| label: "" + l.data.date }); | |
| l.subject = { radius: 4 }; | |
| return l; | |
| }); | |
| var timeFormat = d3.timeFormat("%d-%b-%y"); | |
| window.makeAnnotations = d3.annotation().annotations(labels).type(d3.annotationCalloutCircle).accessors({ x: function x(d) { | |
| return _x(parseTime(d.date)); | |
| }, | |
| y: function y(d) { | |
| return _y(d.close); | |
| } | |
| }).accessorsInverse({ | |
| date: function date(d) { | |
| return timeFormat(_x.invert(d.x)); | |
| }, | |
| close: function close(d) { | |
| return _y.invert(d.y); | |
| } | |
| }).on('subjectover', function (annotation) { | |
| annotation.type.a.selectAll("g.annotation-connector, g.annotation-note").classed("hidden", false); | |
| }).on('subjectout', function (annotation) { | |
| annotation.type.a.selectAll("g.annotation-connector, g.annotation-note").classed("hidden", true); | |
| }); | |
| svg.append("g").attr("class", "annotation-test").call(makeAnnotations); | |
| svg.selectAll("g.annotation-connector, g.annotation-note").classed("hidden", true); | |
| }); |
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