function loadEngine(that, elId, apiName, cb) {
    console.log("开始初始化...");
    window[apiName] = new SAPI(
        {
            serverIP: window.config.serverIP, //服务ip地址
            port: window.config.port, //HTTP端口
            useHttps: window.config.useHttps, //使用Https
            container: elId, //[必须]容器id
            secretKey: window.config.secretKey,
            openEarth: window.config.openEarth, //[可选]开启Gis场景
            bgColor: window.config.bgColor, //[可选]bim场景背景色, 传值即为纯色天空盒
            tintColor: window.config.tintColor, //[可选]osgb单体化颜色
            sceneTime: window.config.sceneTime, //[可选]分别为当前时间、日出时间、日落时间
            cadMode: window.config.cadMode, // 是否是Cad图纸预览模式
        },
        () => {
            that.initSuccess = true;
            console.log("初始化成功");
            setTimeout(() => {
                cb && cb();
            }, 1000);
            let mapOptions = {
                imgs: {
                    // 六面图片
                    top: "/cdn/bim/sapi/img/top.png",
                    bottom: "/cdn/bim/sapi/img/under.png",
                    east: "/cdn/bim/sapi/img/east.png",
                    south: "/cdn/bim/sapi/img/south.png",
                    west: "/cdn/bim/sapi/img/west.png",
                    north: "/cdn/bim/sapi/img/north.png",
                },
                offset: {
                    // 屏幕坐标偏移
                    corner: GLENavigationCube.RightTop,
                    x: 25,
                    y: 20,
                },
                cube: {
                    hoverColor: "#7193dc", // 立方导航快鼠标移过显示颜色
                    size: 32, // 导航立方尺寸
                    hotPointSize: 7, // 导航立方棱角热点区域尺寸
                    cubeTextColor: "#4c4c4ccc", // cube 各个面文字颜色
                    cubeStrokeColor: "#374769cc", // cube 各个面边框颜色
                    cubeFillColor: "#374769cc", // cube 各个面填充颜色
                },
                zoomRatios: 1, // 缩放倍率
                show: true, // 是否显示
                showAxes: true, // 是否显示XYZ轴线
            };
            let api = window[apiName]
            api.Plugin.initNavCube(mapOptions);
            if (that.bimCfg.showGis) {
                api.Public.setGisState(true);
                api.Public.setTerrainState(false, "/cdn/Cesium/layer.json", false)
                api.Public.setGisState(true);
            } else if (that.bimCfg.background) {
                api.Public.setGisState(false, that.bimCfg.background);
            }
        }
    );
}

export default {
    loadEngine
}