{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.896924,-0.442186,0.000000,0.000000,0.282261,-0.572535,0.769761,0.000000,-0.339443,0.688522,0.640871,0.000000,-2167997.646635,4397538.298745,4065792.214824,1],    "boundingVolume": {    "region": [2.028739,0.695576,2.028922,0.695689,0.000000,42.492945]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/1/1_448638.b3dm"}}}