private void button1_Click(object sender, EventArgs e)
{
PointF O = new PointF(pictureBox1.Width / 2, pictureBox1.Height / 2);
Graphics g = pictureBox1.CreateGraphics();
Funkcija f = new Konstanta(0);
string s = textBox1.Text;
f = Citaj(s, 0, 0, s.Length);
f.Nacrtaj(g, O, 5, -100, 100, pictureBox1.Height);
}
