{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950470,-0.310816,0.000000,0.000000,0.173841,-0.531603,0.828962,0.000000,-0.257112,0.786242,0.561887,0.000000,-1641628.152236,5020066.363291,3563570.848032,1],    "boundingVolume": {    "region": [1.886799,0.596616,1.886897,0.596715,0.000000,13.343096]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/7_1394255.b3dm"}}}