{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950117,-0.311894,0.000000,0.000000,0.173881,-0.529689,0.830178,0.000000,-0.258385,0.787113,0.560080,0.000000,-1649747.578681,5025594.900722,3552087.552958,1],    "boundingVolume": {    "region": [1.887900,0.594417,1.888064,0.594549,0.000000,8.674643]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/6_1378623.b3dm"}}}