{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.898032,-0.439929,0.000000,0.000000,0.281322,-0.574266,0.768815,0.000000,-0.337293,0.688520,0.642008,0.000000,-2154275.057248,4397542.897164,4073026.132089,1],    "boundingVolume": {    "region": [2.026270,0.697086,2.026363,0.697143,0.000000,42.363821]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/4/7_752930.b3dm"}}}