{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949874,-0.312632,0.000000,0.000000,0.174489,-0.530153,0.829754,0.000000,-0.258863,0.786506,0.560712,0.000000,-1652803.723284,5021733.456259,3556098.698527,1],    "boundingVolume": {    "region": [1.888677,0.595179,1.888841,0.595311,0.000000,8.806304]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/12_1356494.b3dm"}}}