{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950479,-0.310788,0.000000,0.000000,0.173500,-0.530611,0.829669,0.000000,-0.257310,0.786926,0.560838,0.000000,-1642887.016646,5024415.090948,3556900.590451,1],    "boundingVolume": {    "region": [1.886769,0.595339,1.886868,0.595456,0.000000,8.818353]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/2/9_1450860.b3dm"}}}