Hi Yagua, On Friday 12 February 2010 17:04:27 Yagua Rovi wrote: > Hello world! > I am displaying on my screen a set of data corresponding to points > defined by a longitude and latitude. > The display is fine with the command imshow (mydata ,...) > > I would like now associate to the application a callback that draw a > rectangle on two consecutive left mouse's button press defined by its two > opposite vertices. > (also returns points) and a right click button that erases the rectangle.
Why don't you want for select the rectangle using the rectangle selector? I attached an example (modified version of example 'rectangle_selector.py') showing its usage. You can delete lines using the key 'd' or 'D'. Furthermore I attached a script, which uses button_press_event s as you proposed above. I hope at least one of the examples helps you. Kind regards, Matthias
draw_rectangle_using_button_press_events.py
Description: application/python
draw_rectangle_using_rectangle_selector.py
Description: application/python
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