{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949309,-0.314344,0.000000,0.000000,0.175813,-0.530951,0.828964,0.000000,-0.260030,0.785283,0.561885,0.000000,-1660263.471624,5013945.931784,3563554.218434,1],    "boundingVolume": {    "region": [1.890511,0.596652,1.890612,0.596673,0.000000,8.423663]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/13/12_1421424.b3dm"}}}