{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950119,-0.311886,0.000000,0.000000,0.173867,-0.529661,0.830198,0.000000,-0.258385,0.787135,0.560049,0.000000,-1649748.623536,5025735.167237,3551889.938131,1],    "boundingVolume": {    "region": [1.887892,0.594380,1.888056,0.594511,0.000000,8.674643]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/6_1458086.b3dm"}}}