{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949046,-0.315139,0.000000,0.000000,0.175698,-0.529118,0.830159,0.000000,-0.261067,0.786208,0.560108,0.000000,-1666874.005105,5019816.145021,3552262.058102,1],    "boundingVolume": {    "region": [1.891352,0.594421,1.891447,0.594611,0.000000,13.112033]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/18/26_1461999.b3dm"}}}