{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.897719,-0.440569,0.000000,0.000000,0.282899,-0.576446,0.766602,0.000000,-0.336803,0.686282,0.644655,0.000000,-2151170.418024,4383302.273276,4089868.807363,1],    "boundingVolume": {    "region": [2.026965,0.700538,2.027092,0.700607,0.000000,50.720461]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/10/7_857724.b3dm"}}}