{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950390,-0.311059,0.000000,0.000000,0.173963,-0.531514,0.828994,0.000000,-0.257323,0.786206,0.561840,0.000000,-1642975.871989,5019839.153656,3563271.809685,1],    "boundingVolume": {    "region": [1.887055,0.596559,1.887153,0.596658,0.000000,8.795997]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/6_1392615.b3dm"}}}