{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949877,-0.312622,0.000000,0.000000,0.174718,-0.530867,0.829249,0.000000,-0.258696,0.786026,0.561462,0.000000,-1651741.535783,5018681.424689,3560865.488278,1],    "boundingVolume": {    "region": [1.888663,0.596049,1.888834,0.596254,0.000000,21.806790]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/4/2_1434921.b3dm"}}}