{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950669,-0.310206,0.000000,0.000000,0.173411,-0.531442,0.829155,0.000000,-0.256667,0.786592,0.561601,0.000000,-1638787.716802,5022295.077752,3561749.695856,1],    "boundingVolume": {    "region": [1.886157,0.596270,1.886255,0.596369,0.000000,8.661017]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/2/3_1427914.b3dm"}}}