{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.896303,-0.443442,0.000000,0.000000,0.283845,-0.573720,0.768295,0.000000,-0.339754,0.686725,0.642632,0.000000,-2169997.524613,4386093.032126,4076997.296992,1],    "boundingVolume": {    "region": [2.030165,0.697869,2.030298,0.697988,0.000000,49.655558]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/2/1/3_543450.b3dm"}}}