{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950035,-0.312145,0.000000,0.000000,0.174230,-0.530281,0.829726,0.000000,-0.258451,0.786613,0.560752,0.000000,-1650171.477708,5022416.543823,3556354.719284,1],    "boundingVolume": {    "region": [1.888164,0.595228,1.888328,0.595359,0.000000,8.821017]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/12_1456780.b3dm"}}}