{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950048,-0.312103,0.000000,0.000000,0.174039,-0.529780,0.830086,0.000000,-0.258529,0.786969,0.560216,0.000000,-1650669.659499,5024678.473087,3552949.731676,1],    "boundingVolume": {    "region": [1.888120,0.594581,1.888284,0.594712,0.000000,10.242729]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/7_1377269.b3dm"}}}