{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950131,-0.311852,0.000000,0.000000,0.173889,-0.529793,0.830110,0.000000,-0.258329,0.787060,0.560181,0.000000,-1649389.357171,5025256.253959,3552728.641025,1],    "boundingVolume": {    "region": [1.887856,0.594539,1.888020,0.594670,0.000000,8.783335]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/7_1458586.b3dm"}}}