{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950209,-0.311613,0.000000,0.000000,0.174203,-0.531201,0.829143,0.000000,-0.257827,0.786200,0.561618,0.000000,-1646196.399939,5019791.931217,3561861.164232,1],    "boundingVolume": {    "region": [1.887617,0.596236,1.887755,0.596445,0.000000,8.813532]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/1/2_1397233.b3dm"}}}