Hi there
I have a function where I want to display an image, get the user to
zoom in on a region of interest, and then return the axes limits.
But the problem is, I can only use it once, the second time it gets
called in a script the figure doesn't appear. I know this is to do
with show() not being supposed to be used multiple times, but I don't
know what I should be doing instead ... any tips? (I'm still new to
python btw)
Also, if there's a better (more pythonic way) to do what I'm doing, I
would appreciate your input. I'm not sure if what I'm doing with the
region variable is dodgy or not.
Currently, I'm doing this:
from pylab import *
def getroi(im):
imshow(im)
title('Zoom in to region of interest, then press a key')
region = array([0, 0, 0, 0]) # Placeholder values
def keypressed(event):
region[:] = [round(i) for i in gca().axis()]
close(gcf())
# Connect keypressed to event handler
connect('key_press_event', keypressed)
show()
return region
thanks,
Richard
--
Richard Brown
Ph.D. Candidate
Dept. of Mechanical Engineering
University of Canterbury, NZ
-------------------------------------------------------------------------
Take Surveys. Earn Cash. Influence the Future of IT
Join SourceForge.net's Techsay panel and you'll get the chance to share your
opinions on IT & business topics through brief surveys-and earn cash
http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV
_______________________________________________
Matplotlib-users mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/matplotlib-users
