{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.897670,-0.440669,0.000000,0.000000,0.285490,-0.581561,0.761763,0.000000,-0.334737,0.681879,0.650379,0.000000,-2138024.973423,4355286.291599,4126283.316516,1],    "boundingVolume": {    "region": [2.027064,0.707970,2.027216,0.708197,0.000000,18.456261]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/2_1797046.b3dm"}}}