{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.951864,-0.306520,0.000000,0.000000,0.112582,-0.349609,0.930107,0.000000,-0.284837,0.884529,0.369427,0.000000,-1817560.192411,5644225.067420,2341554.630374,1],    "boundingVolume": {    "region": [1.882250,0.378332,1.882414,0.378453,0.000000,20.735773]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/21/10_45617.b3dm"}}}