{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.892665,-0.450722,0.000000,0.000000,0.290686,-0.575711,0.764237,0.000000,-0.343494,0.680297,0.647463,0.000000,-2193929.315772,4345128.513990,4107729.958830,1],    "boundingVolume": {    "region": [2.038318,0.704216,2.038422,0.704285,0.000000,34.600370]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/8_1967644.b3dm"}}}