{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.871408,-0.490559,0.000000,0.000000,0.211762,-0.376164,0.902030,0.000000,-0.441942,0.785047,0.434037,0.000000,-2820548.769841,5010298.823235,2751548.125080,1],    "boundingVolume": {    "region": [2.083472,0.448928,2.083584,0.449009,0.000000,62.954785]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/1/1_221378.b3dm"}}}