{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949471,-0.313856,0.000000,0.000000,0.175312,-0.530350,0.829454,0.000000,-0.259781,0.785886,0.561157,0.000000,-1658670.422430,5017780.873263,3558926.376426,1],    "boundingVolume": {    "region": [1.889998,0.595742,1.890097,0.595823,0.000000,8.620857]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/6_1442631.b3dm"}}}