{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.948631,-0.316384,0.000000,0.000000,0.176372,-0.528826,0.830202,0.000000,-0.262113,0.785906,0.560044,0.000000,-1673549.354024,5017885.908408,3551853.311726,1],    "boundingVolume": {    "region": [1.892664,0.594327,1.892760,0.594550,0.000000,8.785435]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/9_1214564.b3dm"}}}