private void UpdatePicBox(bool refresh = true)
{
main_graphics.Clear(Color.White);
mainScene.Draw(main_graphics, compLinesCheckBox.Checked);
GR_Point p = mainScene.GetPointsCenter(true);
label2.Text = p.X.ToString();
label3.Text = p.Y.ToString();
label4.Text = p.Z.ToString();
if (refresh)
{
MainPicBox.Refresh();
}
}
