{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950044,-0.312117,0.000000,0.000000,0.174208,-0.530268,0.829739,0.000000,-0.258432,0.786633,0.560733,0.000000,-1650049.308267,5022541.237247,3556236.103133,1],    "boundingVolume": {    "region": [1.888135,0.595206,1.888299,0.595337,0.000000,8.820070]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/12_1454408.b3dm"}}}