{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949297,-0.314380,0.000000,0.000000,0.175753,-0.530699,0.829138,0.000000,-0.260115,0.785440,0.561627,0.000000,-1660805.950740,5014939.481803,3561914.039168,1],    "boundingVolume": {    "region": [1.890551,0.596310,1.890650,0.596391,0.000000,8.812643]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/13/13_1416496.b3dm"}}}