{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.942622,-0.333862,0.000000,0.000000,0.187101,-0.528260,0.828211,0.000000,-0.275923,0.779038,0.562998,0.000000,-1761742.014170,4974089.403858,3570631.132432,1],    "boundingVolume": {    "region": [1.911131,0.597978,1.911256,0.598040,0.000000,8.267433]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/8/21_1250150.b3dm"}}}