{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.858452,-0.512894,0.000000,0.000000,0.262374,-0.439146,0.859250,0.000000,-0.439927,0.736323,0.514095,0.000000,-2808398.171705,4700526.805780,3259901.638788,1],    "boundingVolume": {    "region": [2.109267,0.539889,2.109432,0.540015,0.000000,21.917633]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/3_216497.b3dm"}}}