{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950162,-0.311757,0.000000,0.000000,0.174107,-0.530638,0.829524,0.000000,-0.258066,0.786525,0.561053,0.000000,-1647716.268527,5021857.930985,3558268.538021,1],    "boundingVolume": {    "region": [1.887788,0.595599,1.887887,0.595716,0.000000,8.784539]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/12_1428319.b3dm"}}}