{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950590,-0.310449,0.000000,0.000000,0.173573,-0.531477,0.829099,0.000000,-0.256850,0.786472,0.561685,0.000000,-1639959.407187,5021532.512672,3562281.956351,1],    "boundingVolume": {    "region": [1.886413,0.596371,1.886510,0.596470,0.000000,10.796649]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/5/4_1388909.b3dm"}}}