{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950552,-0.310566,0.000000,0.000000,0.173684,-0.531597,0.828998,0.000000,-0.256916,0.786345,0.561833,0.000000,-1640376.908135,5020722.099548,3563225.540831,1],    "boundingVolume": {    "region": [1.886535,0.596551,1.886633,0.596649,0.000000,13.616695]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/6_1392315.b3dm"}}}