{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950563,-0.310531,0.000000,0.000000,0.173652,-0.531565,0.829025,0.000000,-0.256896,0.786380,0.561793,0.000000,-1640249.101410,5020945.854268,3562970.797641,1],    "boundingVolume": {    "region": [1.886499,0.596502,1.886597,0.596601,0.000000,12.750379]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/5_1390873.b3dm"}}}