{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950546,-0.310582,0.000000,0.000000,0.173723,-0.531684,0.828935,0.000000,-0.256910,0.786279,0.561927,0.000000,-1640339.463337,5020305.704110,3563825.378287,1],    "boundingVolume": {    "region": [1.886553,0.596665,1.886651,0.596763,0.000000,14.800804]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/7_1394855.b3dm"}}}