//the method adds a figure to the FigureList class, and draws the desired figure (Curve)
private void button6_Click(object sender, EventArgs e)
{
figlist.figarray.Add("Cur");
using (grx = Graphics.FromImage(bmp))
{
grx.DrawCurve(Pens.Black, figlist.GetCurve(Convert.ToInt32(textBox24.Text), Convert.ToInt32(textBox23.Text), Convert.ToInt32(textBox22.Text), Convert.ToInt32(textBox21.Text)));
}
pictureBox1.Image = bmp;
}
