{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950517,-0.310671,0.000000,0.000000,0.173700,-0.531445,0.829092,0.000000,-0.257032,0.786406,0.561694,0.000000,-1641121.106869,5021111.527143,3562339.979300,1],    "boundingVolume": {    "region": [1.886646,0.596382,1.886744,0.596481,0.000000,8.679983]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/4_1388980.b3dm"}}}