{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.951843,-0.306586,0.000000,0.000000,0.112620,-0.349646,0.930089,0.000000,-0.284893,0.884491,0.369474,0.000000,-1817914.391138,5643987.014608,2341851.453090,1],    "boundingVolume": {    "region": [1.882319,0.378383,1.882483,0.378503,0.000000,18.620205]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/21/11_45878.b3dm"}}}