{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949087,-0.315015,0.000000,0.000000,0.116067,-0.349691,0.929648,0.000000,-0.292585,0.881507,0.370593,0.000000,-1867002.918537,5624961.631994,2348947.168926,1],    "boundingVolume": {    "region": [1.891215,0.379589,1.891323,0.379705,0.000000,52.365640]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/16/18_74981.b3dm"}}}