{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949445,-0.313932,0.000000,0.000000,0.175512,-0.530811,0.829117,0.000000,-0.259738,0.785543,0.561657,0.000000,-1658396.751582,5015598.482347,3562107.358167,1],    "boundingVolume": {    "region": [1.890079,0.596346,1.890177,0.596428,0.000000,7.964432]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/14_1338021.b3dm"}}}