{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950977,-0.309262,0.000000,0.000000,0.116031,-0.356794,0.926949,0.000000,-0.286397,0.880669,0.377357,0.000000,-1827552.824191,5619708.696087,2391861.153437,1],    "boundingVolume": {    "region": [1.885131,0.386889,1.885295,0.386992,0.000000,7.987158]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/21/16_59311.b3dm"}}}