环饼图echarts custom配置项内容和展示
设计样式来源于网站 https://tob.design/#/material，此图是对他人设计的echats实现，仅仅作为个人的学习练习使用
配置项如下
let angle = 0; //角度，用来做简单的动画效果的
let value = 80;
let maxvalue = 100;
let percent = (value / maxvalue) * 100;
percent = percent.toFixed(0)
option = {
backgroundColor: '#000E1A',
title: {
text: '{a|' + percent + '}{c|%}',
x: 'center',
y: 'center',
textStyle: {
rich: {
a: {
fontSize: 70,
color: '#ffffff',
fontFamily: 'Din'
},
c: {
fontSize: 45,
color: '#ffffff',
fontFamily: 'SanFrancisco ',
}
}
}
},
polar: [{
radius: ['33.5%', '45%'],
center: ['50%', '50%'],
},
],
angleAxis: {
max: maxvalue,
show: false,
inverse: false
},
radiusAxis: {
type: 'category',
show: true,
axisLabel: {
show: false,
},
axisLine: {
show: false,
},
axisTick: {
show: false
},
},
series: [
// 大弧线
{
name: "ring5",
type: 'custom',
coordinateSystem: "none",
renderItem: function (params, api) {
return {
type: 'arc',
shape: {
cx: api.getWidth() / 2,
cy: api.getHeight() / 2,
r: Math.min(api.getWidth(), api.getHeight()) / 2.3 * 0.6,
// startAngle: (0+angle) * Math.PI / 180,
// endAngle: (90+angle) * Math.PI / 180
startAngle: (0) * Math.PI / 180,
endAngle: (360) * Math.PI / 180
},
style: {
stroke: "rgb(53,53,53)",
fill: " transparent",
lineWidth: 5
},
silent: true
};
},
data: [0]
},
//小弧线
{
name: "ring5",
type: 'custom',
z: 1,
coordinateSystem: "none",
renderItem: function (params, api) {
return {
type: 'arc',
shape: {
cx: api.getWidth() / 2,
cy: api.getHeight() / 2,
r: Math.min(api.getWidth(), api.getHeight()) / 3.3 * 0.6,
// startAngle: (0+angle) * Math.PI / 180,
// endAngle: (90+angle) * Math.PI / 180
startAngle: (0) * Math.PI / 180,
endAngle: (360) * Math.PI / 180
},
style: {
stroke: "rgb(53,53,53)",
fill: " transparent",
lineWidth: 5
},
silent: true
};
},
data: [0]
},
//点,通过时间间隔函数做成动画效果
{
name: "ring5",
type: 'custom',
coordinateSystem: "none",
renderItem: function (params, api) {
let x0 = api.getWidth() / 2;
let y0 = api.getHeight() / 2;
let r = Math.min(api.getWidth(), api.getHeight()) / 2.3 * 0.6;
let point = getCirlPoint(x0, y0, r, (90 + angle))
return {
type: 'circle',
shape: {
cx: point.x,
cy: point.y,
r: 5
},
style: {
stroke: "rgb(211,145,28)",
fill: "rgb(211,145,28)"
},
silent: true
};
},
data: [0]
},
//点
{
name: "ring5",
type: 'custom',
coordinateSystem: "none",
renderItem: function (params, api) {
let x0 = api.getWidth() / 2;
let y0 = api.getHeight() / 2;
let r = Math.min(api.getWidth(), api.getHeight()) / 2.3 * 0.6;
let point = getCirlPoint(x0, y0, r, (270 + angle))
return {
type: 'circle',
shape: {
cx: point.x,
cy: point.y,
r: 5
},
style: {
stroke: "rgb(211,145,28)",
fill: "rgb(211,145,28)"
},
silent: true
};
},
data: [0]
},
//极坐标柱状图
{
name: '',
type: 'bar',
roundCap: true,
barWidth: 10,
showBackground: true,
stack:"a",
backgroundStyle: {
color: 'rgba(66, 66, 66, 0)',
},
data: [value,0],
coordinateSystem: 'polar',
itemStyle: {
normal: {
color: new echarts.graphic.LinearGradient(0, 1, 0, 0, [{
offset: 0,
color: 'rgb(211,145,28)'
}, {
offset: 1,
color: 'rgba(211,145,28,1)'
}]),
shadowBlur:15,
shadowColor:'rgba(211,145,28,1)',
}
}
},
//分割刻度
{
type: 'gauge',
radius: '48%',
clockwise: false,
startAngle: '90',
endAngle: '-269.9999',
splitNumber: 36,
detail: {
offsetCenter: [0, -20],
formatter: ' '
},
pointer: {
show: false
},
axisLine: {
show: true,
lineStyle: {
color: [
[0, 'rgba(211,145,28,1)'],
[(100-value) / 100, 'rgba(211,145,28,1)'],
[1, 'rgba(53,53,53,.3)']
],
width: 20,
}
},
axisTick: {
show: false
},
splitLine: {
show: true,
length: 35,
lineStyle: {
color: 'rgba(0,14,26,1)',
width: 6
}
},
axisLabel: {
show: false
}
},
//仪表盘，用于显示小刻度圈
{
name: '统计',
type: 'gauge',
splitNumber: 12, //刻度数量
min: 0,
max: 100,
radius: '31%', //图表尺寸
center: ['50%', '50%'],
startAngle: 90,
endAngle: -269.9999,
axisLine: {
show: false,
lineStyle: {
width: 0,
shadowBlur: 0,
color: [
[0, 'rgb(99,99,99)'],
[1, 'rgb(99,99,99)']
]
}
},
axisTick: {
show: true,
lineStyle: {
color: 'rgb(99,99,99)',
width: 5, //刻度线的宽度
},
length: 2, //刻度线的长度
splitNumber: 5
},
splitLine: {
show: true,
length: 0,
lineStyle: {
color: 'rgb(99,99,99)',
}
},
axisLabel: {
show: false
},
// pointer: { //仪表盘指针
// show: 0,
// },
detail: {
borderColor: '#fff',
shadowColor: '#fff', //默认透明
shadowBlur: 2,
offsetCenter: [0, '0%'], // x, y，单位px
textStyle: { // 其余属性默认使用全局文本样式，详见TEXTSTYLE
color: '0',
fontSize: 50,
},
formatter: '{value}'
},
// data: [{
// name: "",
// value: 0
// }]
},
//外圈波纹效果
]
};
//获取圆上面某点的坐标(x0,y0表示坐标，r半径，angle角度)
function getCirlPoint(x0, y0, r, angle) {
let x1 = x0 + r * Math.cos(angle * Math.PI / 180)
let y1 = y0 + r * Math.sin(angle * Math.PI / 180)
return {
x: x1,
y: y1
}
}
function draw() {
angle = angle + 3
myChart.setOption(option, true)
//window.requestAnimationFrame(draw);
}
setInterval(function () {
//用setInterval做动画感觉有问题
draw()
}, 100);
截图如下
