{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950951,-0.309342,0.000000,0.000000,0.116043,-0.356728,0.926973,0.000000,-0.286479,0.880668,0.377297,0.000000,-1828075.121811,5619700.961994,2391482.715392,1],    "boundingVolume": {    "region": [1.885216,0.386824,1.885379,0.386927,0.000000,10.458524]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/21/15_61028.b3dm"}}}