// 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 = [800,900, 800, 800, 800, 800, 800]
const VALUE = [210.9, 260.8, 204.2, 504.9, 740.5, 600.3, 119.0]
option = {
// 标题组件，包含主标题和副标题。
title: {
id: 'bar-chart',
show: true,
text: '3D柱状图标题',
textStyle: {
color: '#fff'
},
subtext: '副标题副标题',
subtextStyle: {
color: '#eee'
},
left: '20',//标题位置
top: '20'//标题位置
},
// 图例组件
legend: {
type: 'plain',//plain:普通图例；scroll:可滚动翻页的图例。当图例数量较多时使。
show: true,
top: '50',
right: '50',
left: 'center',
// 图例的公用文本样式
textStyle: {
color: '#fff'
}
},
// 直角坐标系内绘图网格
grid: {
show: false,//是否显示直角坐标系网格,外边框
top: '150',//离容器左侧的距离
right: '50',//离容器上侧的距离
left: '20',//离容器左侧的距离
bottom: '12%',//离容器底部的距离
borderColor: '#ff0',//外边框颜色
containLabel: true,//是否包含坐标轴的刻度标签,默认为false；true时防止标签溢出
},
// 提示框组件
tooltip: {
trigger: 'axis',//触发类型,axis:坐标轴触发
axisPointer: {//坐标轴指示器配置项
type: 'shadow'//指示器类型:line、shadow、none、cross
},
backgroundColor: 'rgba(50,50,50,0.7)',//提示框浮层的背景颜色
borderColor: '#fff',//提示框浮层的边框颜色
textStyle: {
color: '#fff',
fontSize: '15'
},
// {a}（系列名称） {b}（x轴的值），{c}（y轴的值）
formatter: '{b}：<br />{a0}：{c0}万元'//1.字符串模板
// formatter:function(params){ //2.回调函数,可return dom 自定义样式
// console.log('params',params)
// return params[0].name
// }
},
//图表背景色
backgroundColor: '#081736',
// x 轴设置
xAxis: [{
type: 'category',
name: '月份',//X轴名称
nameLocation: 'end',//X轴名称位置
nameTextStyle: {//X轴名称样式
color: '#fff',
fontWeight: 'bold'
},
nameGap: 10,//X轴名称与轴线之间的距离
nameRotate: 0,//坐标轴名称旋转
axisLabel: {//X轴类目名称样式
color: '#fff',
rotate: 0 //X轴类目名称旋转角度
},
axisLine: { //X轴轴线设置
show: true,
lineStyle: {
color: '#fff',
width: 2
},
},
axisTick: {//X轴刻度相关设置
show: false,
},
splitLine: {// 横向分隔线
show: true,
lineStyle: {
color: '#195384',
type: "dotted",
}
},
data: ['1月', '2月', '3月', '4月', '5月', '6月', '7月'],
}],
// y轴设置
yAxis: [
{
type: 'value',
position: 'left',
name: "万元",
nameTextStyle: {
color: "#fff",
fontSize: 12,
fontWeight: 'bold'
},
min: 0,//坐标轴刻度最小值
axisLine: {//y轴轴线设置
show: true,
lineStyle: {
color: '#fff',
width: 2
}
},
axisLabel: {//y轴刻度标签
formatter: '{value}',
inside: false,//刻度标签是否朝内，默认朝外
textStyle: {
color: "#fff",
}
},
axisTick: {//刻度设置
show: false,
},
splitLine: {//纵向分隔线
show: true,
lineStyle: {
color: '#0a3e98',
type: "dotted",
}
},
}
],
series: [ {
type: 'custom',
name:'销售额',
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(47,102,192,.27)'
}
}, {
type: 'CubeRight',
shape: {
api,
x: location[0],
y: location[1],
xAxisPoint: api.coord([api.value(0), 0])
},
style: {
fill: 'rgba(59,128,226,.27)'
}
}, {
type: 'CubeTop',
shape: {
api,
x: location[0],
y: location[1],
xAxisPoint: api.coord([api.value(0), 0])
},
style: {
fill: 'rgba(72,156,221,.27)'
}
}]
}
},
data: MAX
},
{
type: 'custom',
renderItem: (params, api) => {
const location = api.coord([api.value(0), api.value(1)])
var color = api.value(1) > 800 ? 'red' : new echarts.graphic.LinearGradient(0, 0, 0, 1, [{
offset: 0,
color: 'rgba(37,170,254,1)'
},
{
offset: 0.8,
color: 'rgba(37,170,254,0.1)'
}
])
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: 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
},
{
type: 'bar',
label: {
show: true,
position: 'top',
fontSize: 16,
color: '#fff',
offset: [2, -25]
},
itemStyle: {
color: 'transparent',
},
tooltip: {
},
data: MAX
}],
};