{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.857753,-0.514062,0.000000,0.000000,0.263008,-0.438850,0.859207,0.000000,-0.440906,0.735686,0.514167,0.000000,-2814650.655532,4696466.813453,3260357.703342,1],    "boundingVolume": {    "region": [2.110628,0.539973,2.110792,0.540098,0.000000,25.209233]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/15/4_345707.b3dm"}}}