{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.852951,-0.521992,0.000000,0.000000,0.269321,-0.440079,0.856619,0.000000,-0.446345,0.729342,0.518494,0.000000,-2849417.034664,4656036.012943,3287845.695301,1],    "boundingVolume": {    "region": [2.119934,0.545046,2.120027,0.545131,0.000000,100.381366]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/2/1/1_4370.b3dm"}}}