Update poimangui.py

#512 (comment)
This bug is affected because POI on the confocal image only saves the x, y position into the roi_origin, and since, by default, the values are set to zero. Since the z position is not saved into the POI file (which should be a fixed value) and take it from ROI origin.
So simply adding new_pos[2] = self.poimanagerlogic().scanner_position[2] line 629 "gui/poimanger/poimangui.py" will fix this bug.

gui/poimanager/poimangui.py

@@ -626,6 +626,8 @@ def create_poi_from_click(self, button, pos):
         new_pos = self.poimanagerlogic().roi_origin
         new_pos[0] = pos.x()
         new_pos[1] = pos.y()
+        new_pos[2] = self.poimanagerlogic().scanner_position[2]  #Added by rmgonzal
+
         self.sigAddPoiByClick.emit(new_pos)
         return