{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.948803,-0.315868,0.000000,0.000000,0.176381,-0.529812,0.829571,0.000000,-0.261484,0.785446,0.560982,0.000000,-1669541.706116,5014965.120456,3557819.254613,1],    "boundingVolume": {    "region": [1.892120,0.595460,1.892216,0.595684,0.000000,8.800682]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/15_1181772.b3dm"}}}