{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.948874,-0.315654,0.000000,0.000000,0.176384,-0.530222,0.829309,0.000000,-0.261223,0.785254,0.561372,0.000000,-1667879.337964,5013746.577290,3560298.771221,1],    "boundingVolume": {    "region": [1.891873,0.595990,1.892011,0.596097,0.000000,8.808038]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/9_1148854.b3dm"}}}