{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.899340,-0.437250,0.000000,0.000000,0.282956,-0.581988,0.762382,0.000000,-0.332411,0.683707,0.649652,0.000000,-2123165.014189,4366951.739125,4121655.438927,1],    "boundingVolume": {    "region": [2.023247,0.707072,2.023422,0.707181,0.000000,14.212513]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/20/15_1800726.b3dm"}}}