imlim in ax.imshow

Damon_McDougall3 · October 2, 2012, 6:10pm

Forgot to reply all. Sorry.

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---------- Forwarded message ----------
From: Damon McDougall <damon.mcdougall@...287...>
Date: Tue, Oct 2, 2012 at 7:09 PM
Subject: Re: [Matplotlib-users] imlim in ax.imshow
To: "K.-Michael Aye" <kmichael.aye@...287...>

On Tue, Oct 2, 2012 at 5:51 PM, K.-Michael Aye <kmichael.aye@...287...> wrote:

On Oct 2, 2012, at 6:33 AM, Damon McDougall <damon.mcdougall@...287...> wrote:

On Tue, Oct 2, 2012 at 2:19 PM, Benjamin Root <ben.root@...1304...> wrote:

On Mon, Oct 1, 2012 at 7:20 PM, Michael Aye <kmichael.aye@...287...> wrote:

Hi!

I see that the function ax.imshow takes the parameter 'imlim' but in
the source (status: EPD 7.3-2) it is not being used?
So what is it for?

Best regards,
Michael

Confirmed. I don't see imlim anywhere except in the imshow() signature. I
have no recollection of this parameter, so it might be from before my time.

Ben Root

Is there some functionality you were looking for or were you just
exploring the codebase?

How nice of you to ask!
Indeed: I had the case that image arrays inside an ImageGrid where shown with some white overhead area around, e.g. for an image of 100 pixels on the x-axis, the imshow resulted in an x-axis that went from -10 to 110. I was looking for a simple way to suppress that behavior and let imshow instead use the exact image extent. I believe that the plot command has such a flag, hasn't it? (I.e. to use the exact xdata range and not try to beautify the plot?

Michael

--
Damon McDougall
http://www.damon-is-a-geek.com
B2.39
Mathematics Institute
University of Warwick
Coventry
West Midlands
CV4 7AL
United Kingdom

Is the 'extent' keyword what you're looking for?

--
Damon McDougall
http://www.damon-is-a-geek.com
B2.39
Mathematics Institute
University of Warwick
Coventry
West Midlands
CV4 7AL
United Kingdom