{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949021,-0.315212,0.000000,0.000000,0.175986,-0.529846,0.829634,0.000000,-0.260961,0.785685,0.560890,0.000000,-1666202.182459,5016494.969094,3557231.956257,1],    "boundingVolume": {    "region": [1.891408,0.595407,1.891545,0.595514,0.000000,8.713676]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/4_1177310.b3dm"}}}