{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.871281,-0.490784,0.000000,0.000000,0.211961,-0.376291,0.901930,0.000000,-0.442096,0.784845,0.434246,0.000000,-2821528.765010,5009011.176880,2752878.466649,1],    "boundingVolume": {    "region": [2.083730,0.449161,2.083842,0.449242,0.000000,109.170094]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/4/4_227094.b3dm"}}}