private void button1_Click(object sender, EventArgs e)
{
if (rightPolygon != null)
{
rightPolygon.Erase(getPointsForRightPolygon(Int32.Parse(number.Text), 50, Int32.Parse(firstPointX.Text), Int32.Parse(firstPointY.Text)));
rightPolygon = null;
}
}
private void button2_Click(object sender, EventArgs e)
{
rightPolygon = new RightPolygon(graphics, Color.Red);
rightPolygon.Draw(getPointsForRightPolygon(Int32.Parse(number.Text), 50, Int32.Parse(firstPointX.Text), Int32.Parse(firstPointY.Text)));
}