{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.947983,-0.318321,0.000000,0.000000,0.116954,-0.348299,0.930059,0.000000,-0.295787,0.880876,0.369549,0.000000,-1887436.071877,5620919.841321,2342328.019346,1],    "boundingVolume": {    "region": [1.894725,0.378507,1.894784,0.378540,0.000000,14.563087]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/28/21.b3dm"}}}