{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950227,-0.311560,0.000000,0.000000,0.174133,-0.531087,0.829231,0.000000,-0.257811,0.786298,0.561488,0.000000,-1646091.824219,5020417.578891,3561033.187117,1],    "boundingVolume": {    "region": [1.887561,0.596079,1.887699,0.596287,0.000000,8.813532]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/1/2_1431985.b3dm"}}}