{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950675,-0.310190,0.000000,0.000000,0.113765,-0.348669,0.930316,0.000000,-0.288312,0.883624,0.368896,0.000000,-1839733.396374,5638445.676777,2338182.517551,1],    "boundingVolume": {    "region": [1.886146,0.377784,1.886232,0.377858,0.000000,9.049479]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/3/20.b3dm"}}}