{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.858160,-0.513382,0.000000,0.000000,0.262993,-0.439614,0.858821,0.000000,-0.440123,0.735702,0.514815,0.000000,-2809659.735974,4696574.540484,3264476.958029,1],    "boundingVolume": {    "region": [2.109836,0.540729,2.110000,0.540855,0.000000,87.261500]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/10/10_439259.b3dm"}}}