{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949414,-0.314028,0.000000,0.000000,0.115070,-0.347896,0.930445,0.000000,-0.291921,0.882576,0.368567,0.000000,-1862758.257965,5631751.813321,2336098.232181,1],    "boundingVolume": {    "region": [1.890145,0.377343,1.890313,0.377592,0.000000,20.593603]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/10/9_14939.b3dm"}}}