{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950350,-0.311184,0.000000,0.000000,0.173798,-0.530776,0.829501,0.000000,-0.257585,0.786658,0.561087,0.000000,-1644644.895212,5022708.811067,3558487.018112,1],    "boundingVolume": {    "region": [1.887185,0.595640,1.887285,0.595757,0.000000,8.707822]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/12_1343943.b3dm"}}}