{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949726,-0.313082,0.000000,0.000000,0.174906,-0.530573,0.829397,0.000000,-0.259123,0.786043,0.561241,0.000000,-1654466.485417,5018785.555015,3559462.863820,1],    "boundingVolume": {    "region": [1.889156,0.595800,1.889309,0.595969,0.000000,8.820307]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/4/2_1351921.b3dm"}}}