{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950338,-0.311220,0.000000,0.000000,0.174069,-0.531536,0.828957,0.000000,-0.257444,0.786128,0.561894,0.000000,-1643748.620462,5019339.991196,3563616.255356,1],    "boundingVolume": {    "region": [1.887196,0.596582,1.887348,0.596767,0.000000,8.820846]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/1/4_1399828.b3dm"}}}