{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950148,-0.311799,0.000000,0.000000,0.173839,-0.529742,0.830153,0.000000,-0.258299,0.787115,0.560117,0.000000,-1649197.187824,5025608.856130,3552321.805274,1],    "boundingVolume": {    "region": [1.887801,0.594462,1.887964,0.594593,0.000000,8.814051]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/6_1458298.b3dm"}}}