{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949293,-0.314392,0.000000,0.000000,0.175764,-0.530714,0.829126,0.000000,-0.260121,0.785426,0.561644,0.000000,-1660844.125567,5014849.224347,3562022.581471,1],    "boundingVolume": {    "region": [1.890563,0.596330,1.890662,0.596412,0.000000,8.812643]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/13/13_1416989.b3dm"}}}