{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950026,-0.312170,0.000000,0.000000,0.174077,-0.529766,0.830087,0.000000,-0.258586,0.786951,0.560215,0.000000,-1651029.432302,5024565.442191,3552942.464682,1],    "boundingVolume": {    "region": [1.888191,0.594580,1.888355,0.594711,0.000000,16.856485]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/7_1460870.b3dm"}}}