{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.857818,-0.513953,0.000000,0.000000,0.263105,-0.439137,0.859031,0.000000,-0.440722,0.735590,0.514462,0.000000,-2813476.480193,4695856.804441,3262236.590117,1],    "boundingVolume": {    "region": [2.110501,0.540318,2.110666,0.540443,0.000000,37.453941]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/14/7_390387.b3dm"}}}