Echarts在线免费图表

 
            // 绘制左侧面
const wid = 30;
const w1 = Math.sin(Math.PI / 6) * wid; //4
const w2 = Math.sin(Math.PI / 3) * wid; // 6.8
const snapHeight = wid / 2;
const CubeLeft = echarts.graphic.extendShape({
    shape: {
        x: 0,
        y: 0,
    },
    buildPath: function (ctx, shape) {
        const xAxisPoint = shape.xAxisPoint;
        const c0 = [shape.x, shape.y];
        const c1 = [shape.x - w2, shape.y];
        const c2 = [shape.x - w2, xAxisPoint[1]];
        const c3 = [shape.x, 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 = [shape.x, xAxisPoint[1]];
        const c3 = [shape.x + w1, xAxisPoint[1] - w2 + snapHeight];
        const c4 = [shape.x + w1, shape.y - w2 + snapHeight];
        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 + w1, shape.y - w2 + snapHeight]; //右点
        const c3 = [shape.x - w2 + w1, shape.y - w2 + snapHeight];
        const c4 = [shape.x - w2, shape.y];
        ctx.moveTo(c1[0], c1[1]).lineTo(c2[0], c2[1]).lineTo(c3[0], c3[1]).lineTo(c4[0], c4[1]).closePath();
    },
});
// 三个面图形
echarts.graphic.registerShape('CubeLeft', CubeLeft);
echarts.graphic.registerShape('CubeRight', CubeRight);
echarts.graphic.registerShape('CubeTop', CubeTop);

let xData = ['2017', '2018', '2019', '2020', '2021'];
let yData = [150, 126, 260, 220, 184];
var option = {
    backgroundColor: '#000a3f',
    tooltip: {
        trigger: 'axis',
        axisPointer: {
            type: 'shadow',
        },
        backgroundColor: 'rgba(9, 24, 48, 0.5)',
        borderColor: 'rgba(75, 253, 238, 0.4)',
        textStyle: {
            color: '#CFE3FC',
        },
        borderWidth: 1,
        formatter: function (params) {
            let item = '';
            item += params[0].name;
            $(params).each(function (idx, itm) {
                item += ': ' + itm.value+'万元';
            });
            return item;
        },
    },
    grid: {
        top: '10%',
        left: '5%',
        bottom: '5%',
        right: '5%',
        containLabel: true,
    },
    xAxis: {
        type: 'category',
        data: xData,
        axisLine: {
            show: true,
            lineStyle: {
                color: '#3e6f8e',
                width: 1,
            },
        },
        axisTick: {
            show: false,
            length: 9,
            alignWithLabel: false,
            lineStyle: {
                color: '#AAA',
            },
        },
        axisLabel: {
            fontSize: 14,
            margin: 10,
            color: 'white',
        },
        splitLine: {
            show: false,
            lineStyle: {
                color: '#ffffff',
                opacity: 0.2,
                width: 1,
            },
        },
    },
    yAxis: {
        name: '单位：万元',
        type: 'value',
        nameTextStyle: {
            color: 'white',
            fontSize: 16,
        },
        axisLine: {
            show: true,
            lineStyle: {
                color: '#3e6f8e',
                width: 1,
            },
        },
        axiosTick: {
            show: false,
        },
        axisLabel: {
            color: 'white',
            fontSize: 14,
            margin: 10,
        },
        splitLine: {
            show: true,
            lineStyle: {
                color: '#ffffff',
                opacity: 0.2,
                width: 1,
            },
        },
        nameGap: 20,
    },
    series: [
        {
            type: 'bar',
            label: {
                normal: {
                    show: true,
                    position: 'top',
                    fontSize: 16,
                    color: '#fff',
                    offset: [0, -10],
                },
            },
            tooltip: {
                show: false,
            },
            itemStyle: {
                color: 'transparent',
            },
            data: yData,
        },
        {
            type: 'custom',
            renderItem: (params, api) => {
                const location = api.coord([api.value(0), api.value(1)]);
                location[0] = location[0] + wid * 0;
                const xlocation = api.coord([api.value(0), 0]);
                xlocation[0] = xlocation[0] + wid * 0;
                return {
                    type: 'group',
                    children: [
                        {
                            type: 'CubeLeft',
                            shape: {
                                api,
                                xValue: api.value(0),
                                yValue: api.value(1),
                                x: location[0],
                                y: location[1],
                                xAxisPoint: xlocation,
                            },
                            style: {
                                fill: new echarts.graphic.LinearGradient(0, 0, 0, 1, [
                                    {
                                        offset: 0,
                                        color: '#059de6',
                                    },
                                    {
                                        offset: 1,
                                        color: '#059de6',
                                    },
                                ]),
                            },
                        },
                        {
                            type: 'CubeRight',
                            shape: {
                                api,
                                xValue: api.value(0),
                                yValue: api.value(1),
                                x: location[0],
                                y: location[1],
                                xAxisPoint: xlocation,
                            },
                            style: {
                                fill: new echarts.graphic.LinearGradient(0, 0, 0, 1, [
                                    {
                                        offset: 0,
                                        color: '#254193',
                                    },
                                    {
                                        offset: 1,
                                        color: '#254193',
                                    },
                                ]),
                            },
                        },
                        {
                            type: 'CubeTop',
                            shape: {
                                api,
                                xValue: api.value(0),
                                yValue: api.value(1),
                                x: location[0],
                                y: location[1],
                                xAxisPoint: xlocation,
                            },
                            style: {
                                fill: new echarts.graphic.LinearGradient(0, 0, 0, 1, [
                                    {
                                        offset: 0,
                                        color: '#17e0fe',
                                    },
                                    {
                                        offset: 1,
                                        color: '#17e0fe',
                                    },
                                ]),
                            },
                        },
                    ],
                };
            },
            color: 'blue',
            data: yData,
        },
    ],
};