{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949087,-0.315013,0.000000,0.000000,0.116162,-0.349978,0.929528,0.000000,-0.292544,0.881393,0.370896,0.000000,-1866748.634259,5624236.124969,2350872.735287,1],    "boundingVolume": {    "region": [1.891213,0.379916,1.891321,0.380031,0.000000,70.386220]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/16/21_1325.b3dm"}}}