How to use d3-tip with d3's simple bar chart example.
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| letter | frequency | |
|---|---|---|
| A | .08167 | |
| B | .01492 | |
| C | .02780 | |
| D | .04253 | |
| E | .12702 | |
| F | .02288 | |
| G | .02022 | |
| H | .06094 | |
| I | .06973 | |
| J | .00153 | |
| K | .00747 | |
| L | .04025 | |
| M | .02517 | |
| N | .06749 | |
| O | .07507 | |
| P | .01929 | |
| Q | .00098 | |
| R | .05987 | |
| S | .06333 | |
| T | .09056 | |
| U | .02758 | |
| V | .01037 | |
| W | .02465 | |
| X | .00150 | |
| Y | .01971 | |
| Z | .00074 |
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| Using d3-tip to add tooltips to a d3 bar chart. | |
| <!DOCTYPE html> | |
| <meta charset="utf-8"> | |
| <style> | |
| body { | |
| font: 10px sans-serif; | |
| } | |
| .axis path, | |
| .axis line { | |
| fill: none; | |
| stroke: #000; | |
| shape-rendering: crispEdges; | |
| } | |
| .bar { | |
| fill: orange; | |
| } | |
| .bar:hover { | |
| fill: orangered ; | |
| } | |
| .x.axis path { | |
| display: none; | |
| } | |
| .d3-tip { | |
| line-height: 1; | |
| font-weight: bold; | |
| padding: 12px; | |
| background: rgba(0, 0, 0, 0.8); | |
| color: #fff; | |
| border-radius: 2px; | |
| } | |
| /* Creates a small triangle extender for the tooltip */ | |
| .d3-tip:after { | |
| box-sizing: border-box; | |
| display: inline; | |
| font-size: 10px; | |
| width: 100%; | |
| line-height: 1; | |
| color: rgba(0, 0, 0, 0.8); | |
| content: "\25BC"; | |
| position: absolute; | |
| text-align: center; | |
| } | |
| /* Style northward tooltips differently */ | |
| .d3-tip.n:after { | |
| margin: -1px 0 0 0; | |
| top: 100%; | |
| left: 0; | |
| } | |
| </style> | |
| <body> | |
| <script src="http://d3js.org/d3.v3.min.js"></script> | |
| <script src="http://labratrevenge.com/d3-tip/javascripts/d3.tip.v0.6.3.js"></script> | |
| <script> | |
| var margin = {top: 40, right: 20, bottom: 30, left: 40}, | |
| width = 960 - margin.left - margin.right, | |
| height = 500 - margin.top - margin.bottom; | |
| var formatPercent = d3.format(".0%"); | |
| var x = d3.scale.ordinal() | |
| .rangeRoundBands([0, width], .1); | |
| var y = d3.scale.linear() | |
| .range([height, 0]); | |
| var xAxis = d3.svg.axis() | |
| .scale(x) | |
| .orient("bottom"); | |
| var yAxis = d3.svg.axis() | |
| .scale(y) | |
| .orient("left") | |
| .tickFormat(formatPercent); | |
| var tip = d3.tip() | |
| .attr('class', 'd3-tip') | |
| .offset([-10, 0]) | |
| .html(function(d) { | |
| console.log(d); | |
| return "<strong>Frequency:</strong> <span style='color:red'>" + d.frequency + "</span>"; | |
| }) | |
| 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 + ")"); | |
| svg.call(tip); | |
| d3.tsv("data.tsv", type, function(error, data) { | |
| x.domain(data.map(function(d) { return d.letter; })); | |
| y.domain([0, d3.max(data, function(d) { return d.frequency; })]); | |
| svg.append("g") | |
| .attr("class", "x axis") | |
| .attr("transform", "translate(0," + height + ")") | |
| .call(xAxis); | |
| svg.append("g") | |
| .attr("class", "y axis") | |
| .call(yAxis) | |
| .append("text") | |
| .attr("transform", "rotate(-90)") | |
| .attr("y", 6) | |
| .attr("dy", ".71em") | |
| .style("text-anchor", "end") | |
| .text("Frequency"); | |
| svg.selectAll(".bar") | |
| .data(data) | |
| .enter().append("rect") | |
| .attr("class", "bar") | |
| .attr("x", function(d) { return x(d.letter); }) | |
| .attr("width", x.rangeBand()) | |
| .attr("y", function(d) { return y(d.frequency); }) | |
| .attr("height", function(d) { return height - y(d.frequency); }) | |
| .on('mouseover', tip.show) | |
| .on('mouseout', tip.hide) | |
| }); | |
| function type(d) { | |
| d.frequency = +d.frequency; | |
| return d; | |
| } | |
| </script> |
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