{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950566,-0.310524,0.000000,0.000000,0.173716,-0.531775,0.828878,0.000000,-0.256843,0.786240,0.562012,0.000000,-1639914.783285,5020059.330914,3564364.203739,1],    "boundingVolume": {    "region": [1.886491,0.596767,1.886589,0.596866,0.000000,8.782680]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/8_1395791.b3dm"}}}