On Thu, Aug 26, 2010 at 2:24 PM, Ben Edwards <bedwa...@cs.unm.edu> wrote:
> Hello, I've used matplotlib for a while but never had cause to ask a
> question until now. I am trying to add a patch to an axis, but would like
> the patch to remain the same size when, interactively, I resize the
> resulting figure. I am using TkAgg, and trying the following:
>
> >>> import matplotlib.pyplot as plt
> >>> import matplotlib.patches as patches
> >>> ax = plt.gca()
> >>> cp = patches.Circle((.5,.5),.025)
> >>> ax.add_patch(cp)
> >>> ax.set_aspect('equal')
> >>> plt.draw()
> >>> plt.show()
>
> This gives me a nice blue circle in the middle of the plot, and using
> ax.set_aspect('equal') I know that it will not be distorted into an ellipse.
> But is there a way to ensure that when I make the Tk window bigger, that the
> circle appears to be the same size as it was previously? I assume this would
> entail some sort of transform, but I don't quite understand how they work...
>
> Ben
>
>
I haven't tried using this tool myself, and it might not be what you want,
but there is an AnchoredArtist tool that might interest you:
http://matplotlib.sourceforge.net/mpl_toolkits/axes_grid/users/overview.html#anchoredartists
I think this means that it wouldn't move at all, and I don't know if that is
what you want. I hope this helps!
Ben Root
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