{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950485,-0.310771,0.000000,0.000000,0.173800,-0.531564,0.828995,0.000000,-0.257084,0.786286,0.561838,0.000000,-1641454.992752,5020347.186819,3563257.101475,1],    "boundingVolume": {    "region": [1.886751,0.596557,1.886849,0.596655,0.000000,18.141249]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/6_1392543.b3dm"}}}