{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950055,-0.312084,0.000000,0.000000,0.174022,-0.529763,0.830101,0.000000,-0.258518,0.786988,0.560195,0.000000,-1650597.993469,5024797.192672,3552816.026483,1],    "boundingVolume": {    "region": [1.888100,0.594556,1.888264,0.594687,0.000000,10.242729]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/7_1377736.b3dm"}}}