{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.897981,-0.440033,0.000000,0.000000,0.284652,-0.580894,0.762585,0.000000,-0.334617,0.682857,0.649413,0.000000,-2137254.101023,4361518.980090,4120136.188056,1],    "boundingVolume": {    "region": [2.026366,0.706701,2.026498,0.706923,0.000000,15.796264]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/15_1823812.b3dm"}}}