{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950875,-0.309574,0.000000,0.000000,0.173071,-0.531598,0.829126,0.000000,-0.256135,0.786735,0.561644,0.000000,-1635394.102020,5023207.046351,3562021.612842,1],    "boundingVolume": {    "region": [1.885469,0.596261,1.885614,0.596481,0.000000,8.806427]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/15_1324905.b3dm"}}}