{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950456,-0.310858,0.000000,0.000000,0.173864,-0.531593,0.828963,0.000000,-0.257147,0.786232,0.561885,0.000000,-1641854.128273,5020003.124795,3563555.925797,1],    "boundingVolume": {    "region": [1.886844,0.596613,1.886941,0.596712,0.000000,11.384751]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/7_1394194.b3dm"}}}