{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949329,-0.314283,0.000000,0.000000,0.116125,-0.350769,0.929234,0.000000,-0.291774,0.881336,0.371638,0.000000,-1861832.786285,5623882.308560,2355581.070885,1],    "boundingVolume": {    "region": [1.890429,0.380723,1.890567,0.380823,0.000000,15.767610]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/15/8_71750.b3dm"}}}