{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.858365,-0.513040,0.000000,0.000000,0.262467,-0.439133,0.859229,0.000000,-0.440040,0.736230,0.514131,0.000000,-2809122.813780,4699934.922763,3260129.135413,1],    "boundingVolume": {    "region": [2.109436,0.539931,2.109601,0.540056,0.000000,101.578900]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/4_219325.b3dm"}}}