{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949287,-0.314412,0.000000,0.000000,0.175768,-0.530685,0.829144,0.000000,-0.260144,0.785437,0.561617,0.000000,-1660987.909713,5014921.824032,3561854.454900,1],    "boundingVolume": {    "region": [1.890584,0.596298,1.890683,0.596380,0.000000,8.812643]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/13/13_1416163.b3dm"}}}