{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950385,-0.311077,0.000000,0.000000,0.173982,-0.531540,0.828972,0.000000,-0.257330,0.786181,0.561872,0.000000,-1643024.250521,5019680.329047,3563471.892757,1],    "boundingVolume": {    "region": [1.887073,0.596597,1.887171,0.596696,0.000000,8.795997]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/6_1393827.b3dm"}}}