{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950033,-0.312151,0.000000,0.000000,0.174072,-0.529788,0.830074,0.000000,-0.258565,0.786945,0.560234,0.000000,-1650899.988249,5024521.431752,3553064.031963,1],    "boundingVolume": {    "region": [1.888171,0.594603,1.888334,0.594734,0.000000,10.242729]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/7_1377027.b3dm"}}}