{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.951891,-0.306438,0.000000,0.000000,0.112428,-0.349237,0.930265,0.000000,-0.284810,0.884706,0.369025,0.000000,-1817384.818837,5645348.325464,2338998.734683,1],    "boundingVolume": {    "region": [1.882163,0.377899,1.882327,0.378020,0.000000,4.253403]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/20/7_47533.b3dm"}}}