{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950772,-0.309891,0.000000,0.000000,0.173240,-0.531516,0.829143,0.000000,-0.256403,0.786666,0.561618,0.000000,-1637100.962108,5022766.256962,3561860.214346,1],    "boundingVolume": {    "region": [1.885802,0.596230,1.885948,0.596450,0.000000,8.489277]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/14/15_1385757.b3dm"}}}