{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950589,-0.310453,0.000000,0.000000,0.173634,-0.531657,0.828971,0.000000,-0.256814,0.786348,0.561874,0.000000,-1639727.504277,5020746.208726,3563488.688998,1],    "boundingVolume": {    "region": [1.886417,0.596601,1.886515,0.596699,0.000000,14.679444]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/5/6_1393919.b3dm"}}}