{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.943291,-0.331967,0.000000,0.000000,0.186150,-0.528948,0.827987,0.000000,-0.274282,0.779377,0.563330,0.000000,-1751267.431410,4976262.898130,3572740.601101,1],    "boundingVolume": {    "region": [1.909112,0.598362,1.909257,0.598459,0.000000,8.123116]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/6_545515.b3dm"}}}