{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950448,-0.310884,0.000000,0.000000,0.173531,-0.530525,0.829717,0.000000,-0.257404,0.786947,0.560766,0.000000,-1643490.628448,5024544.866972,3556441.481284,1],    "boundingVolume": {    "region": [1.886870,0.595252,1.886969,0.595369,0.000000,8.525015]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/3/9_1450467.b3dm"}}}