{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.898050,-0.439892,0.000000,0.000000,0.281296,-0.574271,0.768821,0.000000,-0.337267,0.688538,0.642001,0.000000,-2154109.323440,4397663.755774,4072983.584187,1],    "boundingVolume": {    "region": [2.026229,0.697077,2.026322,0.697134,0.000000,11.100551]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/4/7_390919.b3dm"}}}