{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.852958,-0.521979,0.000000,0.000000,0.269332,-0.440110,0.856600,0.000000,-0.446325,0.729332,0.518526,0.000000,-2849285.212017,4655971.491294,3288049.924971,1],    "boundingVolume": {    "region": [2.119920,0.545084,2.120012,0.545168,0.000000,211.379700]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/2/1/1_4431.b3dm"}}}