{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950364,-0.311140,0.000000,0.000000,0.173775,-0.530787,0.829498,0.000000,-0.257548,0.786667,0.561091,0.000000,-1644407.813660,5022768.544833,3558512.101215,1],    "boundingVolume": {    "region": [1.887139,0.595645,1.887239,0.595762,0.000000,8.763194]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/12_1428610.b3dm"}}}