public void setStatisticForm(Statistik form)
 {
     statistikForm = form;
 }
 internal void set_statistik_form(Statistik statistik)
 {
     statistikForm = statistik;
 }
 public void draw_histogram(System.Windows.Forms.PictureBox statistikPictureBox, Statistik form, Config.histogram_canal canal)
 {
     model.draw_histogram(statistikPictureBox, canal);
     mainForm.Focus();
 }