{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950689,-0.310145,0.000000,0.000000,0.173334,-0.531323,0.829247,0.000000,-0.256645,0.786697,0.561464,0.000000,-1638648.453927,5022961.810710,3560879.329243,1],    "boundingVolume": {    "region": [1.886093,0.596104,1.886191,0.596203,0.000000,8.751635]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/1/1_1427203.b3dm"}}}