Also, you aren't updating "first" after the first call, so it is constantly
making new axes and recalling imshow().
Ben Root
On Tue, Oct 14, 2014 at 10:41 AM, Benjamin Root <ben.r...@ou.edu> wrote:
> What is happening is that you are not telling the image to redraw, so you
> are only seeing it refresh for other reasons. Try adding a fig.draw() call
> prior to the raw_input() call.
>
> Cheers!
> Ben Root
>
> On Tue, Oct 14, 2014 at 10:03 AM, Slavin, Jonathan <
> jsla...@cfa.harvard.edu> wrote:
>
>> Hi all,
>>
>> In my work lately I have often wanted to browse through a series of
>> images. This means displaying the image(s), looking at it/them and then
>> continuing. I have coded this in a few different ways, but it is generally
>> pretty slow -- which is to say that the image display takes more than a
>> couple seconds (~4) after I tell it to continue to the next image. I
>> tested the loop without image display and it was a factor of ~80 times
>> faster than it was with image display, so it's doesn't have anything to do
>> with reading the images from disk. My latest approach is basically:
>> first = True
>> fig = plt.figure()
>> for file in imagefiles:
>> # read in image data (fits files)
>> if first:
>> ax = fig.add_suplot(1,1,1)
>> im = ax.imshow(image)
>> else:
>> im.set_data(image)
>> ans = raw_input('continue?')
>> if ans == 'n':
>> break
>>
>> Is there a more efficient way to do this?
>>
>> Regards,
>> Jon
>>
>> --
>> ________________________________________________________
>> Jonathan D. Slavin Harvard-Smithsonian CfA
>> jsla...@cfa.harvard.edu 60 Garden Street, MS 83
>> phone: (617) 496-7981 Cambridge, MA 02138-1516
>> fax: (617) 496-7577 USA
>> ________________________________________________________
>>
>>
>>
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