change_radius_cb ( self )

set_radius_for_volume_data ( self )

change_sphere_color_cb ( self,  rgba )

sphere_radius ( self,  default_radius=None )

marker_sphere ( self,  create=False )

remove_marker_sphere ( self )

bind_mouse_button_cb ( self )

marker_set ( self,  create=False )

show_sphere ( self,  show )

bind_mouse_button ( self,  bind )

erase_outside_sphere ( self )

Erase ( self )

fillInUI ( self,  parent )

show_sphere_cb ( self )

enter ( self )

Close ( self )

erase_inside_sphere ( self )

initial_sphere_position (
        self,
        marker_set,
        radius,
        )

Want to place it in volume but make sure it is visible.