我正在制作时间轴显示，我想要在工具提示中显示数据。目前它只显示每次的值。我无法找到改变它的方法。下面的示例显示了如何更改值的格式，而不是显示的值
var chart = c3.generate({
data: {
columns: [
['data1', 30000, 20000, 10000, 40000, 15000, 250000],
['data2', 100, 200, 100, 40, 150, 250]
],
axes: {
data2: 'y2'
}
},
axis : {
y : {
tick: {
format: d3.format("s")
}
},
y2: {
show: true,
tick: {
format: d3.format("$")
}
}
},
tooltip: {
format: {
title: function (d) { return 'Data ' + d; },
value: function (value, ratio, id) {
var format = id === 'data1' ? d3.format(',') : d3.format('$');
return format(value);
}
//value: d3.format(',') // apply this format to both y and y2
}
}
});
取自http://c3js.org/samples/tooltip_format.html 他们承认没有内容编辑的例子，但我在参考或论坛中找不到任何内容，但建议更改代码（它在这里：第300行https://github.com/masayuki0812/c3/blob/master/c3.js）及以下内容：< / p>
__tooltip_contents = getConfig(['tooltip', 'contents'], function (d, defaultTitleFormat, defaultValueFormat, color) {
var titleFormat = __tooltip_format_title ? __tooltip_format_title : defaultTitleFormat,
nameFormat = __tooltip_format_name ? __tooltip_format_name : function (name) { return name; },
valueFormat = __tooltip_format_value ? __tooltip_format_value : defaultValueFormat,
text, i, title, value, name, bgcolor;
for (i = 0; i < d.length; i++) {
if (! (d[i] && (d[i].value || d[i].value === 0))) { continue; }
if (! text) {
title = titleFormat ? titleFormat(d[i].x) : d[i].x;
text = "<table class='" + CLASS.tooltip + "'>" + (title || title === 0 ? "<tr><th colspan='2'>" + title + "</th></tr>" : "");
}
name = nameFormat(d[i].name);
value = valueFormat(d[i].value, d[i].ratio, d[i].id, d[i].index);
bgcolor = levelColor ? levelColor(d[i].value) : color(d[i].id);
text += "<tr class='" + CLASS.tooltipName + "-" + d[i].id + "'>";
text += "<td class='name'><span style='background-color:" + bgcolor + "'></span>" + name + "</td>";
text += "<td class='value'>" + value + "</td>";
text += "</tr>";
}
return text + "</table>";
})
有没有人试图这样做？开发了一些促进流程的功能？有关于如何正确做到这一点的任何提示？我不知道如何改变他们的代码，我可以使用不同于函数获得的d值的更多数据或数据。
答案 0 :(得分：44)
如果您使用https://github.com/masayuki0812/c3/blob/master/src/tooltip.js#L27中的函数getTooltipContent并将其添加到图表声明中，则在tooltip.contents中，您将拥有与默认工具提示相同的工具提示内容。
您可以对此代码进行更改并根据需要进行自定义。一个详细信息，CLASS未在当前范围中定义，但它是部分图表对象，我将CLASS替换为$$.CLASS，也许您甚至不需要代码中的这个对象。
var chart = c3.generate({
/*...*/
tooltip: {
format: {
/*...*/
},
contents: function (d, defaultTitleFormat, defaultValueFormat, color) {
var $$ = this, config = $$.config,
titleFormat = config.tooltip_format_title || defaultTitleFormat,
nameFormat = config.tooltip_format_name || function (name) { return name; },
valueFormat = config.tooltip_format_value || defaultValueFormat,
text, i, title, value, name, bgcolor;
for (i = 0; i < d.length; i++) {
if (! (d[i] && (d[i].value || d[i].value === 0))) { continue; }
if (! text) {
title = titleFormat ? titleFormat(d[i].x) : d[i].x;
text = "<table class='" + $$.CLASS.tooltip + "'>" + (title || title === 0 ? "<tr><th colspan='2'>" + title + "</th></tr>" : "");
}
name = nameFormat(d[i].name);
value = valueFormat(d[i].value, d[i].ratio, d[i].id, d[i].index);
bgcolor = $$.levelColor ? $$.levelColor(d[i].value) : color(d[i].id);
text += "<tr class='" + $$.CLASS.tooltipName + "-" + d[i].id + "'>";
text += "<td class='name'><span style='background-color:" + bgcolor + "'></span>" + name + "</td>";
text += "<td class='value'>" + value + "</td>";
text += "</tr>";
}
return text + "</table>";
}
}
});
答案 1 :(得分：7)
如果您想控制工具提示渲染并根据数据值使用默认渲染，您可以使用以下内容：
tooltip: {
contents: function (d, defaultTitleFormat, defaultValueFormat, color) {
if (d[1].value > 0) {
// Use default rendering
return this.getTooltipContent(d, defaultTitleFormat, defaultValueFormat, color);
} else {
return '<div>Show what you want</div>';
}
},
format: {
/**/
}
}
答案 2 :(得分：2)
在我的情况下，我必须在工具提示中添加日期值（x轴）的日期。最后我想出了以下解决方案
js和css的引用
https://code.jquery.com/jquery-3.2.1.js
https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.6/d3.min.js https://cdnjs.cloudflare.com/ajax/libs/c3/0.4.10/c3.min.js https://cdnjs.cloudflare.com/ajax/libs/c3/0.4.10/c3.min.css
function toDate(dateStr)
{
var numbers = dateStr.match(/\d+/g);
return new Date(numbers[0], numbers[1]-1, numbers[2]);
}
function GetMonthFromString(month)
{
var months = {'Jan' : '01','Feb' : '02','Mar':'03','Apr':'04',
'May':'05','Jun':'06','Jul':'07','Aug':'08','Sep':'09',
'Oct':'10','Nov':'11','Dec':'12'};
return months[month];
}
function GetFullDayName(formatteddate)
{
var weekday = new Array(7);
weekday[0] = "Sunday";
weekday[1] = "Monday";
weekday[2] = "Tuesday";
weekday[3] = "Wednesday";
weekday[4] = "Thursday";
weekday[5] = "Friday";
weekday[6] = "Saturday";
var dayofdate = weekday[formatteddate.getDay()];
return dayofdate;
}
//Chart Data for x-axis, OnHours and AvgHours
function CollectChartData()
{
var xData = new Array();
var onHoursData = new Array();
var averageHoursData = new Array();
var instanceOccuringDatesArray = ["2017-04-20","2017-04-21","2017-04-22","2017-04-23","2017-04-24","2017-04-25","2017-04-26","2017-04-27","2017-04-28","2017-04-29","2017-04-30","2017-05-01","2017-05-02","2017-05-03","2017-05-04","2017-05-05","2017-05-06","2017-05-07","2017-05-08","2017-05-09","2017-05-10","2017-05-11","2017-05-12","2017-05-13","2017-05-14","2017-05-15","2017-05-16","2017-05-17","2017-05-18","2017-05-19","2017-05-20"];
var engineOnHoursArray = ["4.01","14.38","0.10","0.12","0.01","0.24","0.03","6.56","0.15","0.00","1.15","0.00","1.21","2.06","8.55","1.41","0.03","1.42","0.00","3.35","0.02","3.44","0.05","5.41","4.06","0.02","0.04","7.26","1.02","5.09","0.00"];
var avgUtilizationArray = ["2.29","2.29","2.29","2.29","2.29","2.29","2.29","2.29","2.29","2.29","2.29","2.29","2.29","2.29","2.29","2.29","2.29","2.29","2.29","2.29","2.29","2.29","2.29","2.29","2.29","2.29","2.29","2.29","2.29","2.29","2.29"];
xData.push('x');
onHoursData.push('OnHours');
averageHoursData.push('Project Average');
for(var index=0;index<instanceOccuringDatesArray.length;index++)
{
xData.push(instanceOccuringDatesArray[index]);
}
for(var index=0;index<engineOnHoursArray.length;index++)
{
onHoursData.push(engineOnHoursArray[index]);
}
for(var index=0;index<avgUtilizationArray.length;index++)
{
averageHoursData.push(avgUtilizationArray[index]);
}
var Data = [xData, onHoursData, averageHoursData];
return Data;
}
function tooltip_contents(d, defaultTitleFormat, defaultValueFormat, color) {
var $$ = this, config = $$.config, CLASS = $$.CLASS,
titleFormat = config.tooltip_format_title || defaultTitleFormat,
nameFormat = config.tooltip_format_name || function (name) { return name; },
valueFormat = config.tooltip_format_value || defaultValueFormat,
text, i, title, value, name, bgcolor;
// You can access all of data like this:
//$$.data.targets;
for (i = 0; i < d.length; i++) {
if (! text) {
title = titleFormat ? titleFormat(d[i].x) : d[i].x;
var arr = title.split(" ");
var datestr = new Date().getFullYear().toString() + "-"+ GetMonthFromString(arr[1]) + "-"+ arr[0];
var formatteddate = toDate(datestr);
var dayname = GetFullDayName(formatteddate);
title = title + " (" + dayname + ")";
text = "<table class='" + $$.CLASS.tooltip + "'>" + (title || title === 0 ? "<tr><th colspan='2'>" + title + "</th></tr>" : "");
}
name = nameFormat(d[i].name);
var initialvalue = valueFormat(d[i].value, d[i].ratio, d[i].id, d[i].index);
if (initialvalue.toString().indexOf('.') > -1)
{
var arrval = initialvalue.toString().split(".");
value = arrval[0] + "h " + arrval[1] + "m";
}
else
{
value = initialvalue + "h " + "00m";
}
bgcolor = $$.levelColor ? $$.levelColor(d[i].value) : color(d[i].id);
text += "<tr class='" + CLASS.tooltipName + "-" + d[i].id + "'>";
text += "<td class='name'><span style='background-color:" + bgcolor + "'></span>" + name + "</td>";
text += "<td class='value'>" + value + "</td>";
text += "</tr>";
}
return text + "</table>";
}
$(document).ready(function () {
var Data = CollectChartData();
var chart = c3.generate({
data: {
x: 'x',
columns: Data
},
axis: {
x: {
type: 'timeseries',
tick: {
rotate: 75,
//format: '%d-%m-%Y'
format: '%d %b'
}
},
y : {
tick : {
format: function (y) {
if (y < 0) {
}
return y;
}
},
min : 0,
padding : {
bottom : 0
}
}
},
tooltip: {
contents: tooltip_contents
}
});
}); <script src="https://code.jquery.com/jquery-3.2.1.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.6/d3.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/c3/0.4.10/c3.min.js"></script>
<link href="https://cdnjs.cloudflare.com/ajax/libs/c3/0.4.10/c3.min.css" rel="stylesheet" />
<div id="chart"></div>
答案 3 :(得分：0)
可以在图表工具提示中添加其他内容或非数字数据。
这基于@supita's出色的答案http://stackoverflow.com/a/25750639/1003746。
在生成/更新图表时，可以在classes参数中插入有关每行的其他元数据。然后可以将这些作为行添加到工具提示中。
这似乎不会影响图表 - 除非您使用的是data.classes功能。
data: {
classes: {
data1: [{prop1: 10, prop2: 20}, {prop1: 30, prop2: 40}],
data2: [{prop1: 50, prop2: 60}'{prop1: 70, prop2: 80}]
}
}
选择配置中的元数据。
tooltip: {
contents: function (d, defaultTitleFormat, defaultValueFormat, color) {
const $$ = this;
const config = $$.config;
const meta = config.data_classes;
...
for (i = 0; i < d.length; i++) {
if (! (d[i] && (d[i].value || d[i].value === 0))) { continue; }
if (! text) {
...
}
const line = d[0].id;
const properties = meta.classes[line];
const property = properties? properties[i] : null;
然后将以下行添加到表中以显示新属性。
if (property ) {
text += "<tr class='" + $$.CLASS.tooltipName + "-" + d[i].id + "'>";
text += "<td class='name'><span style='background-color:" + bgcolor + "'></span>PROP1</td>";
text += "<td class='name'><span style='background-color:" + bgcolor + "'></span>" + property.prop1 + "</td>";
text += "</tr>";
text += "<tr class='" + $$.CLASS.tooltipName + "-" + d[i].id + "'>";
text += "<td class='name'><span style='background-color:" + bgcolor + "'></span>PROP2</td>";
text += "<td class='name'><span style='background-color:" + bgcolor + "'></span>" +
property.prop2+ " cm/s</td>";
答案 4 :(得分：0)
如果有人关心，这里是上述算法的 ClojureScript版本（例如supita's answer），略微简化（不支持配置）。 （这可能不是OP所要求的，但到目前为止，关于这一主题的网络资源很少，大多数人可能会在这里找到。）
:tooltip {
:contents
(fn [d default-title-format default-value-format color]
(this-as this
(let [this-CLASS (js->clj (.-CLASS this) :keywordize-keys true)
tooltip-name-class (:tooltipName this-CLASS)
rows (js->clj d :keywordize-keys true)
title-row (->> (first rows) (#(str "<table class='" (:tooltip this-CLASS)
"'><tr><th colspan='2'>"
(default-title-format (:x %)) "</th></tr>")))
data-rows (->> rows
(map #(str "<tr class='" tooltip-name-class "--" (:id %) "'>"
"<td class='name'><span style='background-color:"
(color (:id %)) "'></span>" (:name %) "</td>"
"<td class='value'>" (default-value-format (:value %)) "</td>"
"</tr>")))]
(str title-row (string/join data-rows) "</table>"))))}
答案 5 :(得分：0)
当我们有堆积的条形图并且希望在工具提示中显示“总计”时（而不是在条形图/堆栈中显示在图表中），这很方便。
C3图表使用数组存储工具提示的数据，在显示工具提示之前，我们将总计（或根据我们的要求添加任何其他数据）。这样，尽管总数不能作为堆栈显示在工具提示中。
function key_for_sum(arr) {
return arr.value; //value is the key
};
function sum(prev, next) {
return prev + next;
}
var totals_object = {};
totals_object.x = d[0]['x'];
totals_object.value = d.map(key_for_sum).reduce(sum);
totals_object.name = 'total';
totals_object.index = d[0]['index'];
totals_object.id = 'total';
d.push(totals_object);
添加了以上代码，以确保总计
中可用C3.js堆积条形图的工具提示
var chart = c3.generate({
/*...*/
tooltip: {
format: {
/*...*/
},
contents: function (d, defaultTitleFormat, defaultValueFormat, color) {
function key_for_sum(arr) {
return arr.value; //value is the key
}
function sum(prev, next) {
return prev + next;
}
var totals_object = {};
totals_object.x = d[0]['x'];
totals_object.value = d.map(key_for_sum).reduce(sum);// sum func
totals_object.name = 'total';//total will be shown in tooltip
totals_object.index = d[0]['index'];
totals_object.id = 'total';//c3 will use this
d.push(totals_object);
var $$ = this,
config = $$.config,
titleFormat = config.tooltip_format_title || defaultTitleFormat,
nameFormat = config.tooltip_format_name || function (name) {
return name;
},
valueFormat = config.tooltip_format_value || defaultValueFormat,
text, i, title, value, name, bgcolor;
for (i = 0; i < d.length; i++) {
if (!(d[i] && (d[i].value || d[i].value === 0))) {
continue;
}
if (!text) {
title = titleFormat ? titleFormat(d[i].x) : d[i].x;
text = "<table class='" + $$.CLASS.tooltip + "'>" + (title || title === 0 ? "<tr><th colspan='2'>" + title + "</th></tr>" : "");
}
name = nameFormat(d[i].name);
value = valueFormat(d[i].value, d[i].ratio, d[i].id, d[i].index);
bgcolor = $$.levelColor ? $$.levelColor(d[i].value) : color(d[i].id);
text += "<tr class='" + $$.CLASS.tooltipName + "-" + d[i].id + "'>";
text += "<td class='name'><span style='background-color:" + bgcolor + "'></span>" + name + "</td>";
text += "<td class='value'>" + value + "</td>";
text += "</tr>";
}
return text + "</table>";
}
}
答案 6 :(得分：0)
您的问题是关于更改c3js中工具提示的内容。
工具提示包含3个变量
+----------------+
| title |
+----------------+
| name | value |
+----------------+
此外，您想从其他变量中添加“名称”，而不是“列”中使用的变量。
tooltip: {
format: {
title(x, index) { return ''; },
name(name, ratio, id, index) { return lst[index + 1]; },
value(value, ratio, id, index) { return value; }
}
},
这对我有用，可以随便摆弄参数，以获取所需的东西。
答案 7 :(得分：0)
我以前遇到过一个与c3的工具提示位置和样式有关的问题。为了自由地在c3中安排工具提示，我的建议是使用d3操作工具提示。
// internal = chart.internal()
const mousePos = d3.mouse(internal.svg.node()); // find mouse position
const clientX = mousePos[0]; //for x
const clientY = mousePos[1]; //for y
const tooltip = d3.select("#tooltip"); //select tooltip div (apply your style)
tooltip.style("display", "initial"); //show tooltip
tooltip.style("left", clientX - mouseOffSet.X + "px"); // set position
tooltip.style("top", clientY - mouseOffSet.Y + "px"); // set position
tooltip.html("<span>" + content + "</span>");
// you can arrange all content and style whatever you want
<div
id="tooltip"
className="your-style"
style={{ display: "none", position: "absolute" }}
/>
Good luck!!