{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950457,-0.310855,0.000000,0.000000,0.173849,-0.531552,0.828993,0.000000,-0.257153,0.786261,0.561842,0.000000,-1641894.159536,5020186.921508,3563280.407611,1],    "boundingVolume": {    "region": [1.886840,0.596561,1.886938,0.596660,0.000000,14.063257]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/6_1392658.b3dm"}}}