Re: [Matplotlib-users] Fixing axes for imshow plot on top of a figure

[Benjamin R. <ben...@ou...>]

I think you want figimage():
http://matplotlib.org/examples/pylab_examples/figimage_demo.html

I use it all the time for adding the company's logo to graphs. Keep in mind
that it will plot the unsampled version of the image, so the final result
depends on the figure size and resolution.

I hope that helps!
Ben Root


On Wed, May 20, 2015 at 7:43 AM, aradand <ara...@gm...> wrote:

> I'm trying to plot an image on top of a Figure, but imshow seems to always
> distort the size of the axes. What I want is that the lower part of the top
> image stay always in the same position, for any image height
>
> This minimal example shows my issue
>
> import matplotlib.pyplot as plt
> import numpy as np
>
> fig = plt.figure()
> ax = fig.add_axes([0.1, 0, 1, 1])
>
> # Top figure aligned with the bottom figure
> # keeping the same width (?)
> ax2 = fig.add_axes([0.1, 1, 1, 1])
> ax2.set_xticks([])
>
> # Depending on the number of rows or columns
> # the top image will be moved further to the top
> # or will be stretched if rows > columns
> # I dont know how to control this to stay always
> # with the same separation with respect
> # to the bottom figure and keeping the same width
> # (so the frame is the same width than the bottom figure)
> im = np.random.rand(10, 30)
> ax2.imshow(im)
> plt.plot()
>
> If it is possible to
>
> I would prefer to avoid using subplots or grid, since I have already
> specified a lot of things using the add_axes method.
>
>
>
> --
> View this message in context:
> http://matplotlib.1069221.n5.nabble.com/Fixing-axes-for-imshow-plot-on-top-of-a-figure-tp45579.html
> Sent from the matplotlib - users mailing list archive at Nabble.com.
>
>
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