{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.896774,-0.442488,0.000000,0.000000,0.287577,-0.582822,0.760012,0.000000,-0.335340,0.679621,0.652429,0.000000,-2141896.289520,4340902.879127,4139323.560154,1],    "boundingVolume": {    "region": [2.029078,0.710732,2.029257,0.710837,0.000000,14.477163]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/6/20_1781715.b3dm"}}}