{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950457,-0.310856,0.000000,0.000000,0.173866,-0.531602,0.828957,0.000000,-0.257143,0.786227,0.561894,0.000000,-1641829.817416,5019969.927494,3563613.503149,1],    "boundingVolume": {    "region": [1.886841,0.596624,1.886939,0.596723,0.000000,8.239229]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/7_1328161.b3dm"}}}