{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949287,-0.314412,0.000000,0.000000,0.175677,-0.530412,0.829337,0.000000,-0.260204,0.785622,0.561330,0.000000,-1661372.720568,5016098.153970,3560030.398641,1],    "boundingVolume": {    "region": [1.890564,0.595939,1.890702,0.596046,0.000000,8.723768]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/2/9_1360871.b3dm"}}}