{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950695,-0.310127,0.000000,0.000000,0.173241,-0.531069,0.829429,0.000000,-0.256688,0.786876,0.561193,0.000000,-1638917.734875,5024100.251162,3559160.506074,1],    "boundingVolume": {    "region": [1.886066,0.595770,1.886181,0.595884,0.000000,8.747232]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/13_1343368.b3dm"}}}