private static IEnumerable <IGeometry> GetBufferInput(int count) { ISpatialReference spatialReference = CreateDefaultSpatialReference(); IPoint center = GeometryFactory.CreatePoint(0, 0, 0); center.SpatialReference = spatialReference; var result = new List <IGeometry>(); for (int i = 0; i < count; i++) { IGeometry geometry = GeometryFactory.CreateCircularPolygon(center, 100, 1); geometry.SpatialReference = spatialReference; GeometryUtils.Simplify(geometry); result.Add(geometry); } return(result); }