{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950464,-0.310836,0.000000,0.000000,0.173839,-0.531557,0.828992,0.000000,-0.257137,0.786265,0.561843,0.000000,-1641792.258652,5020212.759171,3563290.887648,1],    "boundingVolume": {    "region": [1.886820,0.596563,1.886918,0.596662,0.000000,15.117020]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/6_1392747.b3dm"}}}