{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950324,-0.311262,0.000000,0.000000,0.173763,-0.530523,0.829670,0.000000,-0.257702,0.786799,0.560836,0.000000,-1645390.954341,5023604.007994,3556888.880134,1],    "boundingVolume": {    "region": [1.887270,0.595380,1.887363,0.595411,0.000000,8.597556]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/9.b3dm"}}}