{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.852945,-0.522001,0.000000,0.000000,0.269333,-0.440087,0.856611,0.000000,-0.446349,0.729330,0.518507,0.000000,-2849442.756841,4655960.567322,3287929.676342,1],    "boundingVolume": {    "region": [2.119946,0.545062,2.120038,0.545146,0.000000,211.379700]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/2/1/1_21399.b3dm"}}}