{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.951192,-0.308600,0.000000,0.000000,0.115704,-0.356634,0.927052,0.000000,-0.285816,0.880967,0.377102,0.000000,-1823844.598845,5621605.113214,2390245.558671,1],    "boundingVolume": {    "region": [1.884435,0.386614,1.884599,0.386717,0.000000,54.868675]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/16/13_21559.b3dm"}}}