如何在c3js中更改工具提示内容
How to change tooltip content in c3js
我正在制作一个时间轴显示，并且我有想要在工具提示上显示的数据。目前，它只显示每次的值。我找不到改变它的方法。下面的示例显示了如何更改值的格式，但没有显示什么值
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他们确实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东西，但建议更改代码(在这里:https://github.com/masayuki0812/c3/blob/master/c3.js第300行)及以下:
__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>";
})
有人试图这样做吗?开发了一些功能来促进这个过程?有什么正确的建议吗?我不知道如何以一种方式改变他们的代码，我可以使用更多的数据或数据不同于函数获得的d值。
如果您使用https://github.com/masayuki0812/c3/blob/master/src/tooltip.js#L27中的getTooltipContent函数并将其添加到图表声明中，在tooltip中。内容，您将拥有与默认内容相同的工具提示内容。
您可以对该代码进行更改并根据自己的喜好进行自定义。一个细节，因为CLASS在当前作用域中没有定义，但它是部分图表对象，我用CLASS代替$$.CLASS，也许你甚至不需要这个对象在你的代码中。
var chart = c3.generate({
/*...*/
tooltip: {
format: {
/*...*/
},
contents: function (d, defaultTitleFormat, defaultValueFormat, color) {
var $$ = 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>";
}
}
});
如果你想根据数据值控制工具提示呈现并使用默认呈现，你可以这样做:
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: {
/**/
}
}
在我的例子中，我必须在工具提示中添加日期值(x轴)的日期。最后，我想出了下面的解决方案
关于js和css的参考
https://code.jquery.com/jquery-3.2.1.jshttps://cdnjs.cloudflare.com/ajax/libs/d3/3.5.6/d3.min.jshttps://cdnjs.cloudflare.com/ajax/libs/c3/0.4.10/c3.min.jshttps://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>当我们有一个堆叠的条形图，我们想要在工具提示中显示"Total"(而不是在图表中作为条形/堆栈)，这是很方便的。
C3图表使用一个数组来存储工具提示的数据，在显示工具提示之前，我们正在添加总数(或根据我们的需求添加任何其他数据)。通过这样做，虽然总数不能作为堆栈使用，但它会在工具提示中显示。
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);
C3.js堆叠条形图的工具提示
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>";
}
}
可以在图表工具提示中添加额外的内容或非数值数据。
这建立在@supita的优秀答案http://stackoverflow.com/a/25750639/1003746之上。
在生成/更新图表时，可以在classes参数中插入关于每一行的额外元数据。然后可以将它们作为行添加到工具提示中。
这似乎不会影响图表——除非你正在使用数据。类特性。
data: {
classes: {
data1: [{prop1: 10, prop2: 20}, {prop1: 30, prop2: 40}],
data2: [{prop1: 50, prop2: 60}'{prop1: 70, prop2: 80}]
}
}
获取配置中的元数据。
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>";
如果有人关心，这里是一个ClojureScript版本的上述算法(例如supita的答案)，稍微简化(不支持配置)。(这可能不是OP要求的，但到目前为止，网上关于这个主题的资源很少，大多数人可能会在这里结束。)
: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>"))))}
你的问题是关于在c3js中改变工具提示的内容。
工具提示有3个变量
+----------------+
| title |
+----------------+
| name | value |
+----------------+
另外，您希望从其他变量中添加'name'，而不是在'column'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; }
}
},
这对我来说很有效，你可以随意摆弄这些参数，以得到你需要的。
我以前遇到过一个与c3的工具提示位置和样式相关的问题。为了在c3中自由地安排工具提示，我的建议是用d3来操纵工具提示。
// 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" }}
/>
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