{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.871428,-0.490524,0.000000,0.000000,0.211753,-0.376185,0.902023,0.000000,-0.441907,0.785059,0.434051,0.000000,-2820323.967447,5010376.128591,2751637.187434,1],    "boundingVolume": {    "region": [2.083431,0.448944,2.083543,0.449025,0.000000,62.954785]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/1/1_221823.b3dm"}}}