{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.897888,-0.440224,0.000000,0.000000,0.282563,-0.576320,0.766821,0.000000,-0.336636,0.686609,0.644395,0.000000,-2150101.726824,4385384.748141,4088209.203763,1],    "boundingVolume": {    "region": [2.026581,0.700197,2.026708,0.700266,0.000000,47.936209]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/1_883880.b3dm"}}}