| Matteo Scandolo | 7cd88ba | 2015-12-16 14:23:08 -0800 | [diff] [blame] | 1 | <!doctype html> |
| 2 | <html> |
| 3 | |
| 4 | <head> |
| 5 | <title>Line Chart with Custom Tooltips</title> |
| 6 | <script src="../Chart.js"></script> |
| 7 | <script src="http://cdnjs.cloudflare.com/ajax/libs/jquery/2.1.3/jquery.min.js"></script> |
| 8 | |
| 9 | <style> |
| 10 | #canvas-holder1 { |
| 11 | width: 300px; |
| 12 | margin: 20px auto; |
| 13 | } |
| 14 | #canvas-holder2 { |
| 15 | width: 50%; |
| 16 | margin: 20px 25%; |
| 17 | } |
| 18 | #chartjs-tooltip { |
| 19 | opacity: 1; |
| 20 | position: absolute; |
| 21 | background: rgba(0, 0, 0, .7); |
| 22 | color: white; |
| 23 | padding: 3px; |
| 24 | border-radius: 3px; |
| 25 | -webkit-transition: all .1s ease; |
| 26 | transition: all .1s ease; |
| 27 | pointer-events: none; |
| 28 | -webkit-transform: translate(-50%, 0); |
| 29 | transform: translate(-50%, 0); |
| 30 | } |
| 31 | .chartjs-tooltip-key{ |
| 32 | display:inline-block; |
| 33 | width:10px; |
| 34 | height:10px; |
| 35 | } |
| 36 | </style> |
| 37 | </head> |
| 38 | |
| 39 | <body> |
| 40 | <div id="canvas-holder1"> |
| 41 | <canvas id="chart1" width="300" height="30" /> |
| 42 | </div> |
| 43 | <div id="canvas-holder2"> |
| 44 | <canvas id="chart2" width="450" height="600" /> |
| 45 | </div> |
| 46 | |
| 47 | <div id="chartjs-tooltip"></div> |
| 48 | |
| 49 | |
| 50 | <script> |
| 51 | |
| 52 | Chart.defaults.global.pointHitDetectionRadius = 1; |
| 53 | Chart.defaults.global.customTooltips = function(tooltip) { |
| 54 | |
| 55 | var tooltipEl = $('#chartjs-tooltip'); |
| 56 | |
| 57 | if (!tooltip) { |
| 58 | tooltipEl.css({ |
| 59 | opacity: 0 |
| 60 | }); |
| 61 | return; |
| 62 | } |
| 63 | |
| 64 | tooltipEl.removeClass('above below'); |
| 65 | tooltipEl.addClass(tooltip.yAlign); |
| 66 | |
| 67 | var innerHtml = ''; |
| 68 | for (var i = tooltip.labels.length - 1; i >= 0; i--) { |
| 69 | innerHtml += [ |
| 70 | '<div class="chartjs-tooltip-section">', |
| 71 | ' <span class="chartjs-tooltip-key" style="background-color:' + tooltip.legendColors[i].fill + '"></span>', |
| 72 | ' <span class="chartjs-tooltip-value">' + tooltip.labels[i] + '</span>', |
| 73 | '</div>' |
| 74 | ].join(''); |
| 75 | } |
| 76 | tooltipEl.html(innerHtml); |
| 77 | |
| 78 | tooltipEl.css({ |
| 79 | opacity: 1, |
| 80 | left: tooltip.chart.canvas.offsetLeft + tooltip.x + 'px', |
| 81 | top: tooltip.chart.canvas.offsetTop + tooltip.y + 'px', |
| 82 | fontFamily: tooltip.fontFamily, |
| 83 | fontSize: tooltip.fontSize, |
| 84 | fontStyle: tooltip.fontStyle, |
| 85 | }); |
| 86 | }; |
| 87 | var randomScalingFactor = function() { |
| 88 | return Math.round(Math.random() * 100); |
| 89 | }; |
| 90 | var lineChartData = { |
| 91 | labels: ["January", "February", "March", "April", "May", "June", "July"], |
| 92 | datasets: [{ |
| 93 | label: "My First dataset", |
| 94 | fillColor: "rgba(220,220,220,0.2)", |
| 95 | strokeColor: "rgba(220,220,220,1)", |
| 96 | pointColor: "rgba(220,220,220,1)", |
| 97 | pointStrokeColor: "#fff", |
| 98 | pointHighlightFill: "#fff", |
| 99 | pointHighlightStroke: "rgba(220,220,220,1)", |
| 100 | data: [randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor()] |
| 101 | }, { |
| 102 | label: "My Second dataset", |
| 103 | fillColor: "rgba(151,187,205,0.2)", |
| 104 | strokeColor: "rgba(151,187,205,1)", |
| 105 | pointColor: "rgba(151,187,205,1)", |
| 106 | pointStrokeColor: "#fff", |
| 107 | pointHighlightFill: "#fff", |
| 108 | pointHighlightStroke: "rgba(151,187,205,1)", |
| 109 | data: [randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor()] |
| 110 | }] |
| 111 | }; |
| 112 | |
| 113 | window.onload = function() { |
| 114 | var ctx1 = document.getElementById("chart1").getContext("2d"); |
| 115 | window.myLine = new Chart(ctx1).Line(lineChartData, { |
| 116 | showScale: false, |
| 117 | pointDot : true, |
| 118 | responsive: true |
| 119 | }); |
| 120 | |
| 121 | var ctx2 = document.getElementById("chart2").getContext("2d"); |
| 122 | window.myLine = new Chart(ctx2).Line(lineChartData, { |
| 123 | responsive: true |
| 124 | }); |
| 125 | }; |
| 126 | </script> |
| 127 | </body> |
| 128 | |
| 129 | </html> |