{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950821,-0.309741,0.000000,0.000000,0.173134,-0.531475,0.829192,0.000000,-0.256294,0.786753,0.561546,0.000000,-1636404.374042,5023320.383304,3561401.924978,1],    "boundingVolume": {    "region": [1.885644,0.596143,1.885790,0.596363,0.000000,8.774613]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/13/14_1338935.b3dm"}}}