通过aspectScale设置地图宽高比例

aspectScale

        geo: [
          {
            map: 'js',
            roam: false, //是否允许缩放
            zoom: 1.1, //默认显示级别
            aspectScale: 0.75,
            scaleLimit: {
              min: 0,
              max: 3
            }, //缩放级别
            itemStyle: {
              normal: {
                areaColor: '#0e349a',
                shadowColor: '#0a399b',
                shadowBlur: 1,
                shadowOffsetX: 0,
                shadowOffsetY: 10,
              }
            },
          }, {
            map: 'js',
            roam: false, //是否允许缩放
            zoom: 1.13, //默认显示级别
            scaleLimit: {
              min: 0,
              max: 3
            }, //缩放级别
            itemStyle: {
              normal: {
                areaColor: '#0c4794',
                shadowColor: '#02085a',
                shadowBlur: 1,
                shadowOffsetX: 0,
                shadowOffsetY: 10,
              }
            },
          },
        ],