{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949036,-0.315167,0.000000,0.000000,0.175769,-0.529279,0.830041,0.000000,-0.261053,0.786088,0.560283,0.000000,-1666783.325841,5019052.548002,3553375.906486,1],    "boundingVolume": {    "region": [1.891381,0.594632,1.891476,0.594823,0.000000,15.708664]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/18/27_1212648.b3dm"}}}