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);
        }