{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950522,-0.310657,0.000000,0.000000,0.173691,-0.531444,0.829095,0.000000,-0.257022,0.786413,0.561689,0.000000,-1641055.058966,5021153.191157,3562311.869789,1],    "boundingVolume": {    "region": [1.886650,0.596389,1.886712,0.596463,0.000000,8.759593]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/4.b3dm"}}}