{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.897633,-0.440744,0.000000,0.000000,0.285536,-0.581533,0.761767,0.000000,-0.334795,0.681855,0.650374,0.000000,-2138399.226201,4355132.418340,4126252.002321,1],    "boundingVolume": {    "region": [2.027148,0.707963,2.027299,0.708191,0.000000,18.456261]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/2_1796968.b3dm"}}}