如何更改amcharts中y軸的文本

Question

我正在嘗試將 Y 軸上的顯示值更改為自定義文本，或在值旁邊添加文本。 我可以更改 valueAxis 文本嗎？

這是代碼

// Themes begin
am4core.useTheme(am4themes_animated);
// Themes end

// Create chart instance
var chart = am4core.create("chartdiv", am4charts.XYChart);

// Add data
chart.data = [{
  "year": "2008",
  "label": 101
}, {
  "year": "2009",
  "label": 142
}, {
  "year": "2010",
  "label": 462
}, {
  "year": "2011",
  "label": 364
}, {
  "year": "2012",
  "label": 465
}];

....

// Create value axis
var valueAxis = chart.yAxes.push(new am4charts.ValueAxis());
valueAxis.renderer.inversed = false;
valueAxis.title.text = "";
valueAxis.renderer.minLabelPosition = 0.001;

// Create series
var series1 = chart.series.push(new am4charts.LineSeries());
series1.dataFields.valueY = "label";
series1.dataFields.categoryX = "year";
series1.name = "Currency";
series1.strokeWidth = 3;
series1.bullets.push(new am4charts.CircleBullet());
series1.tooltipText = "{name} in {categoryX}: {valueY}";
series1.legendSettings.valueText = "{valueY}";
series1.visible  = false;

// Add chart cursor
chart.cursor = new am4charts.XYCursor();
chart.cursor.behavior = "zoomY";

// Add legend
chart.legend = new am4charts.Legend();

我想將 200,300,400,500,600,700 和 800 更改為（例如）200s,300s,400s,500s,600s,700s,800s ..

代碼筆

Answer 1

一種快速的方法是使用numberFormatter並在數字格式中添加's' ，這將影響圖表中的所有數值（軸、工具​​提示、圖例值等）：

chart.numberFormatter.numberFormat = "#'s'";

在這種情況下，在s周圍包含引號以將其轉義很重要，因為它是絕對值的格式修飾符。

或者，如果您只是針對軸工具提示，請在getTooltipText上使用適配器

valueAxis.adapter.add("getTooltipText", function(text, target, key) {
 return text + "s";
});