const xData = ['一月', '二月', '三月', '四月', '五月']
const colors = ['rgba(0,137,255,1.0)', 'rgba(0,25,255,1.0)', 'rgba(115,5,255,1.0)']
const yData = [70, 90, 100, 30, 150]
const yDataWidthStyle = []
const yDataMaxWithStyle = []
const max = Math.max(...yData)
const itemMax = {
value: max,
itemStyle: {
color: 'rgba(0,137,255,.1)'
}
}
yData.forEach((value, i) => {
const color = colors[i % colors.length]
const item = {
value,
itemStyle: { color }
}
yDataWidthStyle.push(item)
yDataMaxWithStyle.push(itemMax)
})
// 绘制左侧面
const CubeLeft = echarts.graphic.extendShape({
shape: {
x: 0,
y: 0
},
buildPath: function (ctx, shape) { // 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 = [300, 300, 300, 300, 300]
option = {
backgroundColor: "transparent",
tooltip: {
textStyle: {
color: '#fff',
fontStyle: 'normal',
fontFamily: '微软雅黑',
fontSize: 12,
},
trigger: 'axis',
axisPointer: {
lineStyle: {
color: {
type: 'linear',
x: 0,
y: 0,
x2: 0,
y2: 1,
colorStops: [{
offset: 0,
color: 'rgba(0, 255, 233,0)'
}, {
offset: 0.5,
color: 'rgba(255, 255, 255,1)',
}, {
offset: 1,
color: 'rgba(0, 255, 233,0)'
}],
global: false
}
},
},
formatter: function (params, ticket, callback) {
const item = params[1]
return item.name + ' : ' + item.value + '人';
}
},
grid: { //图表的上下左右的距离
left: '1%',
right: '4%',
bottom: '10%',
top: '20%',
padding: '0 0 0 0',
containLabel: true,
},
xAxis: { //x轴的样式设置
type: 'category',
data: xData,
axisLine: {
show: false,
lineStyle: {
color: 'rgba(255, 168, 1,1.0)'
}
},
offset: 20,
axisTick: {
show: false,
},
axisLabel: {
interval: 0,
margin: 0,
textStyle: {
color: '#7B4D9F',
fontStyle: 'normal',
fontFamily: '微软雅黑',
fontSize: 12,
}
}
},
yAxis: { //y轴的样式设置
type: 'value',
name: "人数",
nameTextStyle: {
color: '#7B4D9F',
fontSize: 15,
offset: [2, -25]
},
axisLine: {
show: false,
lineStyle: {
color: '#7B4D9F'
}
},
splitLine: {
show: false
},
axisTick: {
show: false
},
axisLabel: {
fontSize: 16
},
boundaryGap: false
},
series: [
{ // 每个柱的颜色设置
type: 'custom',
renderItem: (params, api) => {
const location = api.coord([api.value(0), api.value(1)])
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: new echarts.graphic.LinearGradient(0, 0, 0, 1, [{
offset: 0,
color: api.style().fill
},
{
offset: 1,
color: 'rgba(210, 218, 226,1.0)'
}
])
}
},
{
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: new echarts.graphic.LinearGradient(0, 0, 0, 1, [{
offset: 0,
color: api.style().fill
},
{
offset: 1,
color: 'rgba(210, 218, 226,1.0)'
}
])
}
},
{
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: new echarts.graphic.LinearGradient(0, 0, 0, 1, [{
offset: 0,
color: api.style().fill
},
{
offset: 1,
color: api.style().fill
}
])
}
}
]
}
},
data: yDataMaxWithStyle
},
{
type: 'custom',
renderItem: (params, api) => {
const location = api.coord([api.value(0), api.value(1)])
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: new echarts.graphic.LinearGradient(0, 0, 0, 1, [{
offset: 0,
color: api.style().fill
},
{
offset: 1,
color: 'rgba(210, 218, 226,1.0)'
}
])
}
},
{
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: new echarts.graphic.LinearGradient(0, 0, 0, 1, [{
offset: 0,
color: api.style().fill
},
{
offset: 1,
color: 'rgba(210, 218, 226,1.0)'
}
])
}
},
{
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: new echarts.graphic.LinearGradient(0, 0, 0, 1, [{
offset: 0,
color: api.style().fill
},
{
offset: 1,
color: api.style().fill
}
])
}
}
]
}
},
data: yDataWidthStyle
},
{
type: 'bar',
label: {
normal: {
show: true,
position: 'top',
fontSize: 14,
color: '#fff',
offset: [2, -25]
}
},
itemStyle: {
color: 'transparent'
},
tooltip: {},
data: yData
}
]
}