{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950374,-0.311110,0.000000,0.000000,0.173765,-0.530814,0.829483,0.000000,-0.257518,0.786661,0.561114,0.000000,-1644217.313584,5022728.653010,3558655.464421,1],    "boundingVolume": {    "region": [1.887107,0.595673,1.887207,0.595789,0.000000,8.816309]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/5/12_1428730.b3dm"}}}