{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950599,-0.310422,0.000000,0.000000,0.173653,-0.531775,0.828891,0.000000,-0.256763,0.786281,0.561993,0.000000,-1639402.154300,5020315.333387,3564240.289641,1],    "boundingVolume": {    "region": [1.886384,0.596744,1.886482,0.596842,0.000000,8.813590]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/5/8_1395550.b3dm"}}}