{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.871406,-0.490562,0.000000,0.000000,0.211814,-0.376254,0.901980,0.000000,-0.441920,0.785002,0.434140,0.000000,-2820408.670657,5010013.324976,2752207.063096,1],    "boundingVolume": {    "region": [2.083475,0.449043,2.083587,0.449124,0.000000,74.070240]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/1/2_224989.b3dm"}}}