百度echarts用雷达组件画出贝塞尔曲线

var data=[];
for(var i=0; i<16; i++){
  data[i]=[];
}
			
for (var i = 0; i <= 360*10; i++){
  var t = i / 180 * Math.PI;
  data[0].push([Math.cos(t*1/2),  i%360]);
  data[1].push([Math.cos(t*2/3),  i%360]);
  data[2].push([Math.cos(t*3/4),  i%360]);
  data[3].push([Math.cos(t*4/5),  i%360]);
  data[4].push([Math.cos(t*5/6),  i%360]);
  data[5].push([Math.cos(t*6/7),  i%360]);
  data[6].push([Math.cos(t*7/8),  i%360]);
  data[7].push([Math.cos(t*8/9),  i%360]);
  data[8].push([Math.cos(t*2/1),  i%360]);
  data[9].push([Math.cos(t*3/2),  i%360]);
  data[10].push([Math.cos(t*4/3),  i%360]);
  data[11].push([Math.cos(t*5/4),  i%360]);
  data[12].push([Math.cos(t*6/5),  i%360]);
  data[13].push([Math.cos(t*7/6),  i%360]);
  data[14].push([Math.cos(t*8/7),  i%360]);
  data[15].push([Math.cos(t*9/8),  i%360]);
}
var title=[];
title.push("ρ=sin(θ*1/2)");
title.push("ρ=sin(θ*2/3)");
title.push("ρ=sin(θ*3/4)");
title.push("ρ=sin(θ*4/5)");
title.push("ρ=sin(θ*5/6)");
title.push("ρ=sin(θ*6/7)");
title.push("ρ=sin(θ*7/8)");
title.push("ρ=sin(θ*8/9)");
title.push("ρ=sin(θ*2/1)");
title.push("ρ=sin(θ*3/2)");
title.push("ρ=sin(θ*4/3)");
title.push("ρ=sin(θ*5/4)");
title.push("ρ=sin(θ*6/5)");
title.push("ρ=sin(θ*7/6)");
title.push("ρ=sin(θ*8/7)");
title.push("ρ=sin(θ*9/8)");

var polar=[];
var angleAxis=[];
var radiusAxis=[];
var series=[];

for(var i = 0; i< data.length; i++)
{
  polar.push({
  	center: [15 + 24 * (i % 4) + '%', (15+ 24 * Math.floor(i/ 4)) + '%'],
  	radius:'16%'
  });
  angleAxis.push({
  	show: false,
  	polarIndex:i,
  	type: 'value',
  	startAngle: 0
  });
  radiusAxis.push({
  	show: false,
  	polarIndex:i,
  	min: 0
  });
  series.push({
  	polarIndex: i,
  	coordinateSystem: 'polar',
  	name: title[i],
  	type: 'line',
  	showSymbol: false,
  	label:{
  	  normal:{
  	  	show:true,
  	  	position:'bottom'
  	  }
  	},
  	data: data[i]
  });
}

option= {
  backgroundColor:'#030c2b',
  polar: polar,
  tooltip: {
  	show:false
  },
  angleAxis: angleAxis,
  radiusAxis: radiusAxis,
  series: series,
  animationDuration: 2000
};

polarData = echarts.init(document.getElementById("main"));
polarData.setOption(option);
window.addEventListener("resize", function() {
	polarData.resize();
})

点击运行 》