{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.858873,-0.512189,0.000000,0.000000,0.262034,-0.439396,0.859226,0.000000,-0.439309,0.736664,0.514135,0.000000,-2804455.923734,4702703.444404,3260154.507315,1],    "boundingVolume": {    "region": [2.108445,0.539936,2.108610,0.540061,0.000000,9.519833]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/1/4_219549.b3dm"}}}