{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949090,-0.315004,0.000000,0.000000,0.116159,-0.349981,0.929527,0.000000,-0.292536,0.881395,0.370898,0.000000,-1866695.132604,5624247.964795,2350886.798047,1],    "boundingVolume": {    "region": [1.891203,0.379919,1.891312,0.380034,0.000000,70.386220]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/16/21_1414.b3dm"}}}