{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.858818,-0.512280,0.000000,0.000000,0.262236,-0.439628,0.859046,0.000000,-0.439294,0.736460,0.514438,0.000000,-2804364.963992,4701410.734889,3262083.625365,1],    "boundingVolume": {    "region": [2.108552,0.540290,2.108716,0.540415,0.000000,7.913166]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/1/7_250032.b3dm"}}}