{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950447,-0.310887,0.000000,0.000000,0.173532,-0.530523,0.829718,0.000000,-0.257407,0.786946,0.560765,0.000000,-1643508.773948,5024543.059721,3556435.688224,1],    "boundingVolume": {    "region": [1.886873,0.595251,1.886973,0.595367,0.000000,8.525015]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/3/9_1450464.b3dm"}}}