{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.942840,-0.333245,0.000000,0.000000,0.186751,-0.528370,0.828221,0.000000,-0.275416,0.779227,0.562984,0.000000,-1758507.138381,4975297.045099,3570543.819287,1],    "boundingVolume": {    "region": [1.910477,0.597961,1.910602,0.598024,0.000000,8.665172]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/2/21_1250235.b3dm"}}}