{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950021,-0.312187,0.000000,0.000000,0.174084,-0.529756,0.830092,0.000000,-0.258601,0.786952,0.560207,0.000000,-1651128.835638,5024568.283006,3552892.589507,1],    "boundingVolume": {    "region": [1.888209,0.594570,1.888373,0.594701,0.000000,16.856485]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/7_1460764.b3dm"}}}