{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.897615,-0.440780,0.000000,0.000000,0.283150,-0.576613,0.766383,0.000000,-0.336868,0.686006,0.644916,0.000000,-2151587.286296,4381542.320038,4091523.877100,1],    "boundingVolume": {    "region": [2.027201,0.700878,2.027327,0.700947,0.000000,8.862619]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/12_860870.b3dm"}}}