{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950548,-0.310578,0.000000,0.000000,0.173694,-0.531602,0.828993,0.000000,-0.256925,0.786336,0.561840,0.000000,-1640435.037486,5020668.977136,3563273.308635,1],    "boundingVolume": {    "region": [1.886549,0.596560,1.886647,0.596658,0.000000,18.047987]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/6_1392638.b3dm"}}}