{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950600,-0.310419,0.000000,0.000000,0.173507,-0.531332,0.829205,0.000000,-0.256859,0.786582,0.561526,0.000000,-1640014.940085,5022234.203666,3561273.840668,1],    "boundingVolume": {    "region": [1.886381,0.596179,1.886479,0.596278,0.000000,8.811806]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/5/2_1427399.b3dm"}}}