{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950366,-0.311134,0.000000,0.000000,0.174024,-0.531562,0.828950,0.000000,-0.257370,0.786145,0.561905,0.000000,-1643281.748735,5019445.061909,3563683.128793,1],    "boundingVolume": {    "region": [1.887133,0.596638,1.887231,0.596736,0.000000,8.468062]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/13/7_1399922.b3dm"}}}