{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949114,-0.314932,0.000000,0.000000,0.116064,-0.349784,0.929613,0.000000,-0.292497,0.881500,0.370681,0.000000,-1866442.250952,5624912.946270,2349505.491158,1],    "boundingVolume": {    "region": [1.891127,0.379684,1.891236,0.379799,0.000000,60.795093]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/15/19_75806.b3dm"}}}