<div id="barEcharts" style="width: 500px;height:400px;"></div>init() {
this.charts = echarts.init(document.getElementById('barEcharts'));
// 绘制左侧面
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 - 13, shape.y - 13]
const c2 = [xAxisPoint[0] - 13, xAxisPoint[1] - 13]
const c3 = [xAxisPoint[0], 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 = [xAxisPoint[0], xAxisPoint[1]]
const c3 = [xAxisPoint[0] + 18, xAxisPoint[1] - 9]
const c4 = [shape.x + 18, shape.y - 9]
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 + 18, shape.y - 9]
const c3 = [shape.x + 5, shape.y - 22]
const c4 = [shape.x - 13, shape.y - 13]
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)
const MAX = [100, 100, 100, 100, 100]
const VALUE = [20, 30, 50, 90, 30]
let option = {
backgroundColor: "#012366",
tooltip: {
trigger: 'axis',
axisPointer: {
type: 'shadow'
},
formatter: function (params, ticket, callback) {
const item = params[1]
return item.name + ' : ' + item.value;
}
},
grid: {
left: 40,
right: 40,
bottom: 40,
top: 30,
containLabel: true
},
xAxis: {
type: 'category',
data: ['小年', '除夕', '大年', '元宵', '寒食'],
axisLine: {
show: false,
lineStyle: {
color: 'white'
}
},
offset: 25,
axisTick: {
show: false,
length: 9,
alignWithLabel: true,
lineStyle: {
color: '#7DFFFD'
}
},
axisLabel: {
show: true,
fontSize: 16
},
},
yAxis: {
type: 'value',
axisLine: {
show: false,
lineStyle: {
color: 'white'
}
},
splitLine: {
show: false
},
axisTick: {
show: false
},
axisLabel: {
show: false,
fontSize: 16
},
boundaryGap: ['20%', '20%']
},
series: [{
type: 'custom',
renderItem: function (params, api) {
const location = api.coord([api.value(0), api.value(1)])
// 自定义每根柱子的颜色（总高度，透明柱子）
let color1 = '',
color2 = '';
if(api.value()===0){
color1 = '#00A2DB55';
color2 = '#36D0E933';
} else if(api.value()===1){
color1 = '#0C3FFD55';
color2 = '#3764FC33';
} else if(api.value()===2){
color1 = '#4E15D255';
color2 = '#904AFD33';
} else if(api.value()===3){
color1 = '#A727E555';
color2 = '#F90BFD33';
} else if(api.value()===4){
color1 = '#7114F555';
color2 = '#9929EA33';
}
var color = new echarts.graphic.LinearGradient(0, 0, 0, 1, [
{ offset: 0, color: color1 },
{ offset: 1, color: color2 }
])
return {
type: 'group',
children: [{
type: 'CubeLeft',
shape: {
api,
x: location[0],
y: location[1],
xAxisPoint: api.coord([api.value(0), 0])
},
style: {
fill: color
}
}, {
type: 'CubeRight',
shape: {
api,
x: location[0],
y: location[1],
xAxisPoint: api.coord([api.value(0), 0])
},
style: {
fill: color
}
}, {
type: 'CubeTop',
shape: {
api,
x: location[0],
y: location[1],
xAxisPoint: api.coord([api.value(0), 0])
},
style: {
fill: color
}
}]
}
},
data: MAX
}, {
type: 'custom',
renderItem: (params, api) => {
const location = api.coord([api.value(0), api.value(1)])
// 自定义每根柱子的颜色（数据柱子，实体柱子）
let color1 = '',
color2 = '';
if(api.value()===0){
color1 = '#00A2DB';
color2 = '#36D0E9';
} else if(api.value()===1){
color1 = '#0C3FFD';
color2 = '#3764FC';
} else if(api.value()===2){
color1 = '#4E15D2';
color2 = '#904AFD';
} else if(api.value()===3){
color1 = '#A727E5';
color2 = '#F90BFD';
} else if(api.value()===4){
color1 = '#7114F5';
color2 = '#9929EA';
}
var color = new echarts.graphic.LinearGradient(0, 0, 0, 1, [
{ offset: 0, color: color1 },
{ offset: 1, color: color2 }
])
return {
type: 'group',
children: [{
type: 'CubeLeft',
shape: {
api,
xValue: api.value(0),
yValue: api.value(1),
x: location[0],
y: location[1],
xAxisPoint: api.coord([api.value(0), 0])
},
style: {
fill: color
}
}, {
type: 'CubeRight',
shape: {
api,
xValue: api.value(0),
yValue: api.value(1),
x: location[0],
y: location[1],
xAxisPoint: api.coord([api.value(0), 0])
},
style: {
fill: color
}
}, {
type: 'CubeTop',
shape: {
api,
xValue: api.value(0),
yValue: api.value(1),
x: location[0],
y: location[1],
xAxisPoint: api.coord([api.value(0), 0])
},
style: {
fill: color
}
}]
}
},
data: VALUE
},
// 如需单独设置图表的一些样式，可单独列一个对象，下列对象只是修改（总高度透明柱子）的对象
// 如需设置（数据柱子）的参数，需再创建一个对象
{
type: 'bar',
label: {
normal: {
show: false,
position: 'top',
fontSize: 16,
color: '#fff',
offset: [2, -25]
}
},
itemStyle: {
color: 'transparent'
},
tooltip: {
},
data: MAX
}]
}
// 使用刚指定的配置项和数据显示图表。
this.charts.setOption(option);
}PS: The code comes from: https://www.makeapie.com/editor.html?c=xoqSlmiSRZ , I partially processed the source code