echarts 在绘制地图的时候，为了美观，地图可能会使用自定义贴图，这里我们使用echarts + echarts-gl来实现3d地图自定义贴图实例。

完整代码实例

<script src="../../../js/echarts.min.js"></script>
<script src="../../../js/echarts-gl.min.js"></script>
<script>
    // 获取数据
    function getData() {
        $.get('../../../js/data.json', function (data) {
            getEcharts(data)
        });
    }

    // 渲染echarts
    function getEcharts(data) {
        var chartDom = document.getElementById('echarts');
        var myChart = echarts.init(chartDom);
        var nameMap = '地图数据';
        var mapData = []
        echarts.registerMap(nameMap, data);
        /*获取地图数据*/
        myChart.showLoading();
        var mapFeatures = echarts.getMap(nameMap).geoJson.features;
        myChart.hideLoading();
        mapFeatures.forEach(function (v, index) {
            // 地区名称
            mapData.push({
                name: v.properties.name,
                value: Math.random() * 100
            });
        });
        var optionMap = {
            geo3D: {
                map: nameMap,
                roam: true,
                itemStyle: {
                    areaColor: '#143f29',
                    opacity: 1,
                    borderWidth: 0.8,
                    borderColor: '#28cbcc',
                    color: '#fff'
                },
                shading: 'realistic',
                realisticMaterial: {
                    detailTexture: '../../../images/gz-map.jpg',
                    roughness: 0,
                    textureTiling: 1
                },
                label: {
                    show: true,
                    color:'#fff',
                    textStyle: {
                        fontSize: 16,
                        opacity: 1,
                        backgroundColor: 'rgba(0,0,0,0)'
                        //backgroundColor: 'rgba(53,171,199,0)'
                    },
                },
                light: { //光照阴影
                    main: {
                        color: '#aab2af', //光照颜色
                        intensity: 1.8, //光照强度
                        //shadowQuality: 'high', //阴影亮度
                        shadow: true, //是否显示阴影
                        alpha: 55,
                        beta: 10

                    },
                    ambient: {
                        intensity: 0.3
                    }
                }
            },
        };
        myChart.setOption(optionMap);

    }

    if (window.location.origin == 'file://') {
        setTimeout(() => {
            getEcharts(gdMap)
        }, 100)
    } else {
        getData()
    }
</script>