{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.897642,-0.440726,0.000000,0.000000,0.285526,-0.581541,0.761764,0.000000,-0.334780,0.681859,0.650377,0.000000,-2138304.264277,4355161.809764,4126270.070872,1],    "boundingVolume": {    "region": [2.027127,0.707967,2.027279,0.708194,0.000000,18.456261]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/2_1796997.b3dm"}}}