{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.857976,-0.513689,0.000000,0.000000,0.263019,-0.439301,0.858974,0.000000,-0.440465,0.735676,0.514559,0.000000,-2811840.976093,4696407.404507,3262849.896598,1],    "boundingVolume": {    "region": [2.110193,0.540431,2.110358,0.540556,0.000000,30.492566]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/8_397944.b3dm"}}}