// 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 - 5, shape.y - 5];
const c2 = [xAxisPoint[0] - 5, xAxisPoint[1] - 5];
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] +5, xAxisPoint[1] -5];
const c4 = [shape.x + 5, shape.y - 5];
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 +5, shape.y -5];
const c3 = [shape.x , shape.y - 10];
const c4 = [shape.x-5, shape.y-5];
ctx.moveTo(c1[0], c1[1]).lineTo(c2[0], c2[1]).lineTo(c3[0], c3[1]).lineTo(c4[0], c4[1]).closePath();
},
});
echarts.graphic.registerShape('CubeLeft', CubeLeft);
echarts.graphic.registerShape('CubeRight', CubeRight);
echarts.graphic.registerShape('CubeTop', CubeTop);
const MAX = [6000 ];
const VALUE = [2012];
option = {
backgroundColor: '#fff',
title: {
text: '',
top: 32,
left: 18,
textStyle: {
color: '#dddddd',
fontSize: 24,
},
},
tooltip:{
show:true
},
grid: {
left: 20,
right: 40,
bottom: '19%',
top: 107,
containLabel: true,
},
xAxis: {
type: 'category',
data: [
'德州',
],
axisLine: {
show: true,
lineStyle: {
color: '#dddddd',
},
},
offset: 20,
axisTick: {
show: false,
alignWithLabel: true,
lineStyle: {
color: '#dddddd',
},
},
axisLabel: {
fontSize: 10,
},
},
yAxis: {
name: '块',
type: 'value',
axisLine: {
show: true,
lineStyle: {
color: '#dddddd',
},
},
splitLine: {
show: true,
lineStyle: {
type: 'dotted',
color: '#dddddd',
},
},
axisTick: {
show: true,
},
axisLabel: {
fontSize: 16,
},
boundaryGap: ['20%', '20%'],
},
series: [
{
type: 'custom',
tooltip: {
show: false,
},
renderItem: function (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: 'rgba(248, 233, 215,.6)',
},
},
{
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: 'rgba(248, 233, 215,.7)',
},
},
{
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: 'rgba(248, 233, 215,.8)',
},
},
],
};
},
data: MAX,
},
{
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: '#ff7106',
},
{
offset: 1,
color: '#fdb177',
},
]),
},
},
{
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: '#ff7106',
},
{
offset: 1,
color: '#fdb177',
},
]),
},
},
{
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: '#ff7106',
},
{
offset: 1,
color: '#fdb177',
},
]),
},
},
],
};
},
data: VALUE,
},
{
type: 'line',
smooth: 'true',
symbol: 'none',
tooltip: {
show: true,
},
areaStyle: {
//区域填充样式
normal: {
//线性渐变，前4个参数分别是x0,y0,x2,y2(范围0~1);相当于图形包围盒中的百分比。如果最后一个参数是‘true’，则该四个值是绝对像素位置。
color: new echarts.graphic.LinearGradient(
0,
0,
0,
1,
[
{
offset: 0,
color: 'rgba(10,219,250,.3)',
},
{
offset: 1,
color: 'rgba(10,219,250, 0)',
},
],
false
),
shadowColor: 'rgba(10,219,250, 0.5)', //阴影颜色
shadowBlur: 20, //shadowBlur设图形阴影的模糊大小。配合shadowColor,shadowOffsetX/Y, 设置图形的阴影效果。
},
},
data: MAX,
},
],
};