{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950508,-0.310701,0.000000,0.000000,0.173769,-0.531600,0.828979,0.000000,-0.257022,0.786289,0.561862,0.000000,-1641053.821596,5020368.604161,3563410.669251,1],    "boundingVolume": {    "region": [1.886678,0.596586,1.886776,0.596684,0.000000,18.141249]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/6_1393452.b3dm"}}}