{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949043,-0.315147,0.000000,0.000000,0.176080,-0.530254,0.829353,0.000000,-0.260818,0.785435,0.561307,0.000000,-1665289.690800,5014905.175075,3559882.006113,1],    "boundingVolume": {    "region": [1.891339,0.595911,1.891476,0.596017,0.000000,14.029451]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/9_1374129.b3dm"}}}