{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950765,-0.309913,0.000000,0.000000,0.173402,-0.531971,0.828817,0.000000,-0.256319,0.786348,0.562101,0.000000,-1636568.876449,5020746.191115,3564930.733650,1],    "boundingVolume": {    "region": [1.885815,0.596840,1.885980,0.597009,0.000000,8.819100]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/4/4_1387983.b3dm"}}}