{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950346,-0.311194,0.000000,0.000000,0.174176,-0.531912,0.828693,0.000000,-0.257340,0.785883,0.562285,0.000000,-1643088.572740,5017779.507697,3566100.625120,1],    "boundingVolume": {    "region": [1.887197,0.597097,1.887294,0.597196,0.000000,8.793415]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/13/12_1385568.b3dm"}}}