{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.852874,-0.522117,0.000000,0.000000,0.269405,-0.440070,0.856598,0.000000,-0.446441,0.729258,0.518530,0.000000,-2850030.924235,4655498.242897,3288073.577231,1],    "boundingVolume": {    "region": [2.120082,0.545088,2.120174,0.545173,0.000000,140.438233]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/2/3/1_7946.b3dm"}}}