{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.852951,-0.521991,0.000000,0.000000,0.269353,-0.440131,0.856582,0.000000,-0.446326,0.729311,0.518555,0.000000,-2849291.110340,4655836.088019,3288235.291263,1],    "boundingVolume": {    "region": [2.119934,0.545118,2.120026,0.545202,0.000000,45.104900]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/2/1/2_4442.b3dm"}}}