{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949290,-0.314402,0.000000,0.000000,0.175764,-0.530693,0.829139,0.000000,-0.260134,0.785435,0.561624,0.000000,-1660922.430276,5014912.467019,3561897.870462,1],    "boundingVolume": {    "region": [1.890573,0.596307,1.890672,0.596388,0.000000,8.812643]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/13/13_1416387.b3dm"}}}