{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950532,-0.310626,0.000000,0.000000,0.173624,-0.531298,0.829203,0.000000,-0.257030,0.786524,0.561530,0.000000,-1641103.441633,5021859.112903,3561301.166805,1],    "boundingVolume": {    "region": [1.886599,0.596185,1.886697,0.596283,0.000000,8.676512]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/2_1427417.b3dm"}}}