chartJS 中雷达图的 highlightFill

Question

chartJS 中的条形图可以更改突出显示时的填充颜色，使用 highlightFill 属性:

http://www.chartjs.org/docs/#bar-chart-data-structure

var data = {
labels: ["January", "February", "March", "April", "May", "June", "July"],
datasets: [
    {
        label: "My First dataset",
        fillColor: "rgba(220,220,220,0.5)",
        strokeColor: "rgba(220,220,220,0.8)",
        highlightFill: "rgba(220,220,220,0.75)",
        highlightStroke: "rgba(220,220,220,1)",
        data: [65, 59, 80, 81, 56, 55, 40]
    },
    {
        label: "My Second dataset",
        fillColor: "rgba(151,187,205,0.5)",
        strokeColor: "rgba(151,187,205,0.8)",
        highlightFill: "rgba(151,187,205,0.75)",
        highlightStroke: "rgba(151,187,205,1)",
        data: [28, 48, 40, 19, 86, 27, 90]
    }
]};

但是雷达图没有这样的属性:

var data = {
    labels: ["Eating", "Drinking", "Sleeping", "Designing", "Coding", "Cycling", "Running"],
    datasets: [
        {
            label: "My First dataset",
            fillColor: "rgba(220,220,220,0.2)",
            strokeColor: "rgba(220,220,220,1)",
            pointColor: "rgba(220,220,220,1)",
            pointStrokeColor: "#fff",
            pointHighlightFill: "#fff",
            pointHighlightStroke: "rgba(220,220,220,1)",
            data: [65, 59, 90, 81, 56, 55, 40]
        },
        {
            label: "My Second dataset",
            fillColor: "rgba(151,187,205,0.2)",
            strokeColor: "rgba(151,187,205,1)",
            pointColor: "rgba(151,187,205,1)",
            pointStrokeColor: "#fff",
            pointHighlightFill: "#fff",
            pointHighlightStroke: "rgba(151,187,205,1)",
            data: [28, 48, 40, 19, 96, 27, 100]
        }
    ]
};

关于如何扩展雷达图以便能够使用它的任何想法属性？

Answer 1

雷达图与条形图的不同之处在于，一个区域实际上是一个完整的系列（条形图是单个数据点）。

当您看到雷达工具提示时，如果您考虑它代表图表的哪个区域，您就会意识到它基本上只代表从中心向外辐射的 2 个点。一个系列的2个点之间的区域实际上是它们共享的。突出显示一半区域也不好看。

除此之外，一个雷达图系列可以完全被第二个雷达图系列覆盖，我想不出一种不混淆的方式来为雷达图添加悬停突出显示（想想如何你会为折线图突出显示 area - 你不会。你只为一个点做）

chartJS 中雷达图的 highlightFill

highlightFill for radar charts in chartJS

javascript

chart.js