{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.896512,-0.443019,0.000000,0.000000,0.283423,-0.573546,0.768581,0.000000,-0.339557,0.687143,0.642289,0.000000,-2168739.939216,4388755.984476,4074814.865560,1],    "boundingVolume": {    "region": [2.029675,0.697407,2.029844,0.697556,0.000000,61.014776]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/2/1/0_508602.b3dm"}}}