When i do this, it draws on the image plot "img_plot" the two cursors, at a
I also create a new window that serves as a set of tools to use this
In this window i want to place a button that sets a new value for the
"current_position" of the cursors.
but it did not modify the position of the cursors on the plot. Can someone
tell me how i could force the plot to redraw the cursors at the new