{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950551,-0.310567,0.000000,0.000000,0.173683,-0.531590,0.829003,0.000000,-0.256918,0.786349,0.561826,0.000000,-1640394.110874,5020749.415430,3563179.442430,1],    "boundingVolume": {    "region": [1.886537,0.596542,1.886635,0.596641,0.000000,13.616695]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/6_1392050.b3dm"}}}