{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950037,-0.312138,0.000000,0.000000,0.174039,-0.529712,0.830130,0.000000,-0.258572,0.787001,0.560152,0.000000,-1650941.813817,5024879.862799,3552541.193873,1],    "boundingVolume": {    "region": [1.888157,0.594504,1.888321,0.594635,0.000000,11.823777]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/7_1378038.b3dm"}}}