当 amCharts 中的值为零时显示图形标签

Show graph label when value is zero in amCharts

本文关键字：显示 显示图 图形 标签 零时 amCharts      更新时间：2023-09-26

我在amCharts中显示旋转的条形图。我需要显示每个条形的标签，无论值如何。如果值为零，则不显示任何条形，因此不会显示标签。有没有办法始终显示标签，无论值如何？

或者更好的是，有没有办法使 graph.labelOffset 引用成为一个根据值返回不同数量的函数？

这是我正在使用的内容的小提琴。请注意，第 3 项的值为 0，因此不显示标签。

这是图表的 JavaScript 代码。

var gamingData = [
{
    "label": "1",
    "name": "Thinone",
    "grade": 30,
    "pounds": 3.6,
    "percentage": 2.3
},
{
    "label": "2",
    "name": "Studmuffin",
    "grade": 60,
    "pounds": 3.6,
    "percentage": 2.3
},
{
    "label": "3",
    "name": "Slacker",
    "grade": 0,
    "pounds": 3.6,
    "percentage": 2.3
},
{
    "label": "4",
    "name": "Momof2",
    "grade": 60,
    "pounds": 3.6,
    "percentage": 2.3
},
{
    "label": "5",
    "name": "TheVas",
    "grade": 120,
    "pounds": 3.6,
    "percentage": 2.3
}];
var displayGamingChart = function(gamingData, chartDiv) {
var chart = AmCharts.makeChart(chartDiv, {
    "theme": "light",
    "type": "serial",
    "dataProvider": gamingData,
    "graphs": [{
        "balloonText": "Down [[pounds]]lbs and [[percentage]]%",
        "fillAlphas": 1,
        "lineAlpha": 0.2,
        // "title": "Minutes",
        "type": "column",
        "valueField": "grade",
        "labelText": "[[name]]",
        "labelOffset": -75,
        "legendValueText": "",
        "fillColors": "#94BA65"
    }],
    "startDuration": 1,
    "depth3D": 20,
    "angle": 30,
    "rotate": true,
    "categoryField": "label",
    "categoryAxis": {
        "gridPosition": "start",
        "fillAlpha": 0.05,
        "position": "left"
    },
    "export": {
        "enabled": true
     }
});
} 
displayGamingChart(gamingData, "gamingChart");

要强制显示标签，即使是那些不适合的标签，请在图形的配置中将showAllValueLabels设置为true：

"graphs": [{
    "balloonText": "Down [[pounds]]lbs and [[percentage]]%",
    "fillAlphas": 1,
    "lineAlpha": 0.2,
    // "title": "Minutes",
    "type": "column",
    "valueField": "grade",
    "labelText": "[[name]]",
    "labelOffset": -75,
    "legendValueText": "",
    "fillColors": "#94BA65",
    "showAllValueLabels": true
}]

至于问题的第二部分，没有函数可以单独区分每个条形的标签偏移量。

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