let x=['test1','test2','test3','test4','test5'];
let y=[10,20,30,40,50,];
const wid = 20;
const w1 = Math.sin(Math.PI / 6) * wid; //4
const w2 = Math.sin(Math.PI / 3) * wid; // 6.8
const snapHeight = wid / 2;
const CubeLeft = echarts.graphic.extendShape({
shape: {
x: 0,
y: 0
},
buildPath: function (ctx, shape) {
// 会canvas的应该都能看得懂，shape是从custom传入的
const xAxisPoint = shape.xAxisPoint
const c0 = [shape.x, shape.y]
const c1 = [shape.x - w2, shape.y]
const c2 = [shape.x - w2, xAxisPoint[1]]
const c3 = [shape.x, xAxisPoint[1]]
ctx.moveTo(c0[0], c0[1]).lineTo(c1[0], c1[1]).lineTo(c2[0], c2[1]).lineTo(c3[0], c3[1]).closePath()
}
})
// 绘制右侧面
const CubeRight = echarts.graphic.extendShape({
shape: {
x: 0,
y: 0
},
buildPath: function (ctx, shape) {
const xAxisPoint = shape.xAxisPoint
const c1 = [shape.x, shape.y]
const c2 = [shape.x, xAxisPoint[1]]
const c3 = [shape.x + w1, xAxisPoint[1] - w2 + snapHeight]
const c4 = [shape.x + w1, shape.y - w2 + snapHeight]
ctx.moveTo(c1[0], c1[1]).lineTo(c2[0], c2[1]).lineTo(c3[0], c3[1]).lineTo(c4[0], c4[1]).closePath()
}
})
// 绘制顶面
const CubeTop = echarts.graphic.extendShape({
shape: {
x: 0,
y: 0
},
buildPath: function (ctx, shape) {
//
const c1 = [shape.x, shape.y]
const c2 = [shape.x + w1, shape.y - w2 + snapHeight] //右点
const c3 = [shape.x - w2 + w1, shape.y - w2 + snapHeight]
const c4 = [shape.x - w2, shape.y]
ctx.moveTo(c1[0], c1[1]).lineTo(c2[0], c2[1]).lineTo(c3[0], c3[1]).lineTo(c4[0], c4[1]).closePath()
}
})
// 注册三个面图形
echarts.graphic.registerShape('CubeLeft', CubeLeft)
echarts.graphic.registerShape('CubeRight', CubeRight)
echarts.graphic.registerShape('CubeTop', CubeTop)
option = {
title:{
text:'3D柱状图',
x: 'center',
y:'20',
textStyle: {
color: '#fff',
fontSize: 20
}
},
//你的代码
backgroundColor:'rgba(0,0,0,.8)',
tooltip: {
show:false,
trigger: 'axis',
axisPointer: {
type: 'shadow'
},
},
grid: {
left: '5%',
right: '5%',
top: '15%',
bottom: '10%',
containLabel: true
},
xAxis: {
type: 'category',
name:'年龄',
nameTextStyle:{
color:'rgba(16, 213, 223, 1)',
fontSize:12
},
data: x,
axisLine: {
show: true,
lineStyle: {
color: '#3e6f8e',
width:1
}
},
axisTick: {
show: false,
length: 9,
alignWithLabel: true,
lineStyle: {
color: '#AAA'
}
},
axisLine: {
show: true,
lineStyle: {
color: 'rgba(27, 202, 242, .2)',
width:1
}
},
axisLabel:{
interval:0,
rotate:20
},
splitLine:{
show: false,
lineStyle: {
color: '#ffffff',
opacity:0.2,
width:1
}
},
},
yAxis: {
name:'百分比（%）',
min:0,
max:100,
type: 'value',
nameTextStyle:{
color:'rgba(16, 213, 223, 1)',
fontSize:12
},
axisLine: {
show: true,
lineStyle: {
color: 'rgba(27, 202, 242, .2)',
width:1
}
},
axiosTick:{
show:false
},
axisLabel: {
color: 'rgba(16, 213, 223, .4)',
fontSize:12,
formatter:function(val){
return val+'%'
}
},
splitLine:{
show: true,
lineStyle: {
color: 'rgba(5, 80, 123, .1)',
type:'dashed',
width:1
}
},
},
series: [
{
type: 'bar',
label: {
normal: {
show: true,
position: 'top',
fontSize: 12,
color: 'rgba(16, 213, 223, 1)',
formatter:function(params){
return params.value+'%'
},
offset: [0, -10],
},
},
tooltip: {
show:false
},
itemStyle: {
color: 'transparent',
},
data:y,
},
{
type: 'custom',
renderItem: (params, api) => {
const location = api.coord([api.value(0), api.value(1)]);
location[0] = location[0] + wid*0;
const xlocation = api.coord([api.value(0), 0]);
xlocation[0] = xlocation[0] + wid*0;
return {
type: 'group',
children: [{
type: 'CubeLeft',
shape: {
api,
xValue: api.value(0),
yValue: api.value(1),
x: location[0],
y: location[1],
xAxisPoint: xlocation
},
style: {
fill: new echarts.graphic.LinearGradient(0, 0, 0, 1, [{
offset: 0,
color: '#059de6'
},
{
offset: 1,
color: '#059de6'
}
])
}
}, {
type: 'CubeRight',
shape: {
api,
xValue: api.value(0),
yValue: api.value(1),
x: location[0],
y: location[1],
xAxisPoint: xlocation
},
style: {
fill: new echarts.graphic.LinearGradient(0, 0, 0, 1, [{
offset: 0,
color: '#254193'
},
{
offset: 1,
color: '#254193'
}
])
}
}, {
type: 'CubeTop',
shape: {
api,
xValue: api.value(0),
yValue: api.value(1),
x: location[0],
y: location[1],
xAxisPoint: xlocation
},
style: {
fill: new echarts.graphic.LinearGradient(0, 0, 0, 1, [{
offset: 0,
color: '#17e0fe'
},
{
offset: 1,
color: '#17e0fe'
}
])
}
}]
}
},
color:'blue',
data: y
}]
};