{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.948954,-0.315414,0.000000,0.000000,0.116589,-0.350770,0.929176,0.000000,-0.292805,0.880931,0.371786,0.000000,-1868415.132870,5621302.437516,2356520.673412,1],    "boundingVolume": {    "region": [1.891606,0.380827,1.891773,0.381038,0.000000,7.638038]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/1/8_72498.b3dm"}}}