在 amcharts 4 中动态更改图表的标题
Dynamically change title of a chart in amcharts 4
如何使用 javascript 更改已加载图表的标题?以下不适用于外部数据
https://codepen.io/abdfahim/pen/zYOPvPx
var chart = am4core.createFromConfig({
"titles": [
{
"text": "ABCD",
"fontSize": 25,
"marginBottom": 10
}
],
"dataSource": {
"url": "https://s3-us-west-2.amazonaws.com/s.cdpn.io/t-160/sample_data_serial.json"
},
"xAxes": [
{
"type": "CategoryAxis",
"dataFields": {
"category": "year"
}
}
],
"yAxes": [
{
"type": "ValueAxis"
}
],
"series": [
{
"type": "ColumnSeries",
"name": "Cars",
"dataFields": {
"categoryX": "year",
"valueY": "cars"
}
}
]
}, "chartdiv", am4charts.XYChart);
function changeTitle()
{
chart.titles[0].text = "New Title";
}
AmCharts v4 使用 lists 来表示其大部分类似数组的对象,因此使用下标将不起作用。推荐使用list提供的accessor方法获取你要改变的对象,比如getIndex
:
chart.titles.getIndex(0).title = "New title"
以防万一有人遇到我同样的问题,我发现这个解决方案对我有用
chart.titles.getIndex(0).text = "new title";
如果您要每 x 秒刷新一次图表,这将特别方便
如何使用 javascript 更改已加载图表的标题?以下不适用于外部数据
https://codepen.io/abdfahim/pen/zYOPvPx
var chart = am4core.createFromConfig({
"titles": [
{
"text": "ABCD",
"fontSize": 25,
"marginBottom": 10
}
],
"dataSource": {
"url": "https://s3-us-west-2.amazonaws.com/s.cdpn.io/t-160/sample_data_serial.json"
},
"xAxes": [
{
"type": "CategoryAxis",
"dataFields": {
"category": "year"
}
}
],
"yAxes": [
{
"type": "ValueAxis"
}
],
"series": [
{
"type": "ColumnSeries",
"name": "Cars",
"dataFields": {
"categoryX": "year",
"valueY": "cars"
}
}
]
}, "chartdiv", am4charts.XYChart);
function changeTitle()
{
chart.titles[0].text = "New Title";
}
AmCharts v4 使用 lists 来表示其大部分类似数组的对象,因此使用下标将不起作用。推荐使用list提供的accessor方法获取你要改变的对象,比如getIndex
:
chart.titles.getIndex(0).title = "New title"
以防万一有人遇到我同样的问题,我发现这个解决方案对我有用
chart.titles.getIndex(0).text = "new title";
如果您要每 x 秒刷新一次图表,这将特别方便