{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.898082,-0.439829,0.000000,0.000000,0.284306,-0.580520,0.762999,0.000000,-0.334645,0.683307,0.648926,0.000000,-2137424.413895,4364381.558544,4117036.275074,1],    "boundingVolume": {    "region": [2.026138,0.706060,2.026271,0.706283,0.000000,8.366057]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/12_1820500.b3dm"}}}