{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.948944,-0.315445,0.000000,0.000000,0.176022,-0.529520,0.829834,0.000000,-0.261218,0.785813,0.560591,0.000000,-1667838.591408,5017305.448848,3555334.317320,1],    "boundingVolume": {    "region": [1.891675,0.595004,1.891769,0.595195,0.000000,8.807851]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/21/29_1075191.b3dm"}}}