{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950298,-0.311342,0.000000,0.000000,0.174231,-0.531800,0.828753,0.000000,-0.257481,0.785900,0.562196,0.000000,-1643990.400898,5017890.008876,3565533.284549,1],    "boundingVolume": {    "region": [1.887356,0.597027,1.887447,0.597051,0.000000,8.623773]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/15/11.b3dm"}}}