雷达形状-Radarchart JS

Question

我对雷达有问题。我无法得到正确的形状。

var data = [
          [
            {axis:"1",value:0.85},
            {axis:"2",value:0.75},
            {axis:"3",value:0.75},
            {axis:"4",value:0.9},
            {axis:"5",value:0.4},
  {axis:"6",value:0.4}  
          ]
        ];

var color = d3.scale.ordinal();

var radarChartOptions = {
    w: width,
    h: height,
    margin: margin,
    maxValue: 1,
    levels: 10,
    roundStrokes: true,
    color: color
};
RadarChart(".radarChart", data, radarChartOptions);

现在我有类似的东西

https://codepen.io/raju_wk/pen/RwWBpJy

我想要这样的东西