{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.897610,-0.440790,0.000000,0.000000,0.285919,-0.582237,0.761085,0.000000,-0.334528,0.681222,0.651174,0.000000,-2136701.359231,4351108.313817,4131339.472075,1],    "boundingVolume": {    "region": [2.027199,0.709016,2.027351,0.709244,0.000000,19.173071]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/7_1780052.b3dm"}}}