{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949878,-0.312621,0.000000,0.000000,0.174717,-0.530866,0.829250,0.000000,-0.258695,0.786028,0.561460,0.000000,-1651736.805386,5018692.665742,3560851.930711,1],    "boundingVolume": {    "region": [1.888662,0.596046,1.888833,0.596251,0.000000,21.806790]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/4/2_1434854.b3dm"}}}