{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949245,-0.314538,0.000000,0.000000,0.175305,-0.529054,0.830283,0.000000,-0.260608,0.786492,0.559923,0.000000,-1663943.252510,5021625.388665,3551086.648739,1],    "boundingVolume": {    "region": [1.890685,0.594160,1.890847,0.594426,0.000000,8.605786]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/15/10_1382234.b3dm"}}}