private void button4_Click(object sender, EventArgs e)
{
double x = Double.Parse(textBox6.Text);
double y = Double.Parse(textBox7.Text);
double z = Double.Parse(textBox8.Text);
pol.shift(x, y, z);
Clear();
print();
}
private void button4_Click(object sender, EventArgs e)
{
ClearWithout();
write_axes();
double x = Double.Parse(textBox6.Text.ToString());
double y = Double.Parse(textBox7.Text.ToString());
double z = Double.Parse(textBox8.Text.ToString());
figure.shift(x, y, z);
print_figure();
}