Echarts在线免费图表

 
            const offsetX = 24;  //bar宽
const offsetY = 6;   //倾斜角度
// 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;
      // console.log(shape);
      const c0 = [shape.x, shape.y];
      const c1 = [shape.x - offsetX, shape.y - offsetY];
      const c2 = [xAxisPoint[0] - offsetX, xAxisPoint[1] - offsetY];
      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] + offsetX, xAxisPoint[1] - offsetY];
      const c4 = [shape.x + offsetX, shape.y - offsetY];
      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 + offsetX, shape.y - offsetY]; //右点
      // const c3 = [shape.x, shape.y - offsetX];
      const c3 = [shape.x, shape.y - offsetY * 2];
      const c4 = [shape.x - offsetX, shape.y - offsetY];
      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);
let xAxisData = ["中国境内", "新加坡", "香港", "英国", "美国"]
let seriesData = [100, 200, 300, 400, 300]
let colorArr = [["#12D5AF"], ["#0BC19D", "rgba(13,8,16,0)"], ["#68EFD4", "rgba(14,185,151,0)"]]
option = {
    backgroundColor: '#0c2d55',
   tooltip: {
      trigger: 'axis',
      axisPointer: {
         type: 'shadow',
      },
      formatter: function (params, ticket, callback) {
         const item = params[1];
         return item.name + ' : ' + item.value;
      },
   },
   grid: {
      left: '10%',
      right: '10%',
      top: '15%',
      bottom: '20%',
      containLabel: true,
   },
   xAxis: {
      type: 'category',
      data: xAxisData,
      axisLine: {
         show: false,
         lineStyle: {
            width: 2,
            color: '#2B7BD6',
         },
      },
      axisTick: {
         show: false,
      },
      axisLabel: {
         fontSize: 24,
         color: "#fff",
         fontFamily: 'siyuan',
         margin: 15,
         fontWeight: 'bold'
      },
   },
   yAxis: {
      type: 'value',
      axisLine: {
         show: false,
         lineStyle: {
            width: 2,
            color: '#2B7BD6',
         },
      },
      splitLine: {
         show: false,
         lineStyle: {
            color: '#153D7D',
         },
      },
      axisTick: {
         show: false,
      },
      axisLabel: {
         show: false,
         fontSize: 14,
      },
      // boundaryGap: ['20%', '20%'],
   },
   series: [
      {
         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: colorArr[1][0],
                           },
                           {
                              offset: 1,
                              color: colorArr[1][1],
                           },
                        ]),
                     },
                  },
                  {
                     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: colorArr[2][0],
                           },
                           {
                              offset: 1,
                              color: colorArr[2][1],
                           },
                        ]),
                     },
                  },
                  {
                     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: colorArr[0][0],
                           },
                           {
                              offset: 1,
                              color: colorArr[0][0],
                           },
                        ]),
                     },
                  },
               ],
            };
         },
         data: seriesData,
      },
      {
         type: 'bar',
         label: {
            normal: {
               show: true,
               position: 'top',
               formatter: (e) => {
                  // return e.value + '次';
                  return e.value;
               },
               fontSize: 24,
               color: "#fff",
               fontFamily: 'siyuan',
               fontWeight: 'bold',
               offset: [0, -15],
            },
         },
         itemStyle: {
            color: 'transparent',
         },
         tooltip: {},
         data: seriesData,
      },
   ],
};