{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.952083,-0.305839,0.000000,0.000000,0.114715,-0.357110,0.926991,0.000000,-0.283241,0.881734,0.377252,0.000000,-1807411.258053,5626503.719454,2391195.688804,1],    "boundingVolume": {    "region": [1.881601,0.386785,1.881631,0.386869,0.000000,9.105876]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/19/21.b3dm"}}}