{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950108,-0.311920,0.000000,0.000000,0.173907,-0.529719,0.830153,0.000000,-0.258399,0.787083,0.560117,0.000000,-1649838.076994,5025401.575340,3552317.480284,1],    "boundingVolume": {    "region": [1.887928,0.594461,1.888092,0.594592,0.000000,8.638149]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/6_1378262.b3dm"}}}