{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949680,-0.313221,0.000000,0.000000,0.114393,-0.346838,0.930923,0.000000,-0.291322,0.883283,0.367345,0.000000,-1858933.021488,5636245.796513,2328346.365027,1],    "boundingVolume": {    "region": [1.889295,0.376028,1.889464,0.376278,0.000000,8.814951]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/5/4_28716.b3dm"}}}