{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.893993,-0.448081,0.000000,0.000000,0.288814,-0.576230,0.764556,0.000000,-0.341625,0.681595,0.647086,0.000000,-2181988.873673,4353413.000310,4105333.786309,1],    "boundingVolume": {    "region": [2.035331,0.703675,2.035497,0.703838,0.000000,46.655184]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/2/1/3_1992015.b3dm"}}}