{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949533,-0.313667,0.000000,0.000000,0.175142,-0.530190,0.829593,0.000000,-0.259669,0.786070,0.560951,0.000000,-1657953.147769,5018950.610317,3557619.740073,1],    "boundingVolume": {    "region": [1.889768,0.595401,1.889930,0.595667,0.000000,8.792672]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/15_1367102.b3dm"}}}