// 最大值
const max = 100;
// 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 - 8, shape.y - 8]
const c2 = [xAxisPoint[0] - 8, xAxisPoint[1] - 8]
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] + 7, xAxisPoint[1] - 7]
const c4 = [shape.x + 9, 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 + 9, shape.y - 9]
const c3 = [shape.x - 1, shape.y - 16]
const c4 = [shape.x - 8, shape.y - 8]
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)
// 处理数据
let dateArr = ['05/22','05/23','05/24','05/25','05/26','05/27','05/28'];
let maxBarDataArr = new Array(dateArr.length).fill(max);
let barData = [20,30,20,10,40,90,10];
// 生成图表option
option = {
backgroundColor: '#313131',
tooltip: {
trigger: 'axis',
axisPointer: {
type: 'shadow'
},
formatter: function (params, ticket, callback) {
const item = params[1]
return item.name + ' : ' + item.value;
}
},
grid: {
left: 5,
right: 30,
bottom: 30,
top: 50,
containLabel: true
},
xAxis: {
type: 'category',
data: dateArr,
axisLine: {
show: true,
lineStyle: {
color: '#4E4E4E'
}
},
offset: 25,
axisTick: {
show: false,
length: 9,
alignWithLabel: true,
lineStyle: {
color: '#7DFFFD'
}
},
axisLabel: {
show: true,
fontSize: 12,
color: 'rgba(189,189,189,0.5)',
margin: -10,
fontFamily: "customFont"
},
},
yAxis: [{
type: 'value',
axisLine: {
show: false,
lineStyle: {
color: 'white'
}
},
splitLine: {
show: true,
lineStyle: {
color: "rgba(255,255,255,0.2)",
type: 'dotted'
}
},
axisTick: {
show: false
},
axisLabel: {
show: true,
fontSize: 12,
color: 'rgba(189,189,189,0.5)',
fontFamily: "customFont"
}
},
{
type: 'value',
axisLine: {
show: false,
lineStyle: {
color: 'white'
}
},
splitLine: {
show: false,
lineStyle: {
color: "rgba(255,255,255,0.2)",
type: 'dotted'
}
},
axisTick: {
show: false
},
max: 100,
axisLabel: {
show: true,
fontSize: 12,
formatter: '{value}',
color: 'rgba(189,189,189,0.5)',
}
},
{
type: 'value',
axisLine: {
show: false,
lineStyle: {
color: 'white'
}
},
splitLine: {
show: false,
lineStyle: {
color: "rgba(255,255,255,0.2)",
type: 'dotted'
}
},
axisTick: {
show: false
},
axisLabel: {
show: false,
fontSize: 12,
formatter: '{value}',
color: 'rgba(189,189,189,0.5)',
fontFamily: "customFont"
}
}
],
series: [
{
type: 'custom',
renderItem: function (params, api) {
const location = api.coord([api.value(0), api.value(1)])
return {
type: 'group',
children: [{
type: 'CubeLeft',
shape: {
api,
x: location[0],
y: location[1],
xAxisPoint: api.coord([api.value(0), 0])
},
style: {
fill: 'rgba(12,50,32,1)'
}
}, {
type: 'CubeRight',
shape: {
api,
x: location[0],
y: location[1],
xAxisPoint: api.coord([api.value(0), 0])
},
style: {
fill: 'rgba(10,41,26,1)'
}
}, {
type: 'CubeTop',
shape: {
api,
x: location[0],
y: location[1],
xAxisPoint: api.coord([api.value(0), 0])
},
style: {
fill: 'rgba(8,35,22,1)'
}
}]
}
},
data: maxBarDataArr
}, {
type: 'custom',
renderItem: (params, api) => {
const location = api.coord([api.value(0), api.value(1)])
var color = 'rgb(28,177,108)'
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: barData
}, {
type: 'bar',
itemStyle: {
color: 'transparent'
},
tooltip: {
},
data: maxBarDataArr
}
]
}