matplotlib-users Mailing List for matplotlib

I managed to write an Axes sub-class to do this:
https://gist.github.com/astrofrog/8d579ea83e578a9cdb99
Try running this then resize the figure and the margin between axes
and figure edge will stay constant.
Is this something that would be useful to have in Matplotlib itself? I
could foresee something like:
fig.add_axes([0.1, 0.1, 0.8, 0.8], preserve_absolute_margins=True)
If this would be useful, I can open a pull request.
Cheers,
Tom
On 9 September 2015 at 23:29, Thomas Robitaille
<tho...@gm...> wrote:
> Thanks Eric - unfortunately I need to be able to resize the figure
> interactively and have the axes follow.
>
> So an alternative that would be equally useful for me would be to
> specify axes using add_subplot or add_axes but then essentially have
> an option to say that the distance to the edge of the figure should be
> preserved when resizing. In other words, I'm not too concerned about
> whether I specify the original axes position in relative units or in
> inches, but the important thing is that the distance to the edge of
> the figure stays constant in absolute terms.
>
> Is this something that would be easy to build as an Axes subclass?
>
> Cheers,
> Tom
>
>
>
> On 9 September 2015 at 23:12, Eric Firing <ef...@ha...> wrote:
>> On 2015年09月09日 11:01 AM, Thomas Robitaille wrote:
>>>
>>> Hi everyone,
>>>
>>> I am interested in creating axes in an interactive figure where the
>>> distance from the spines of the axes to the figure edge are constant
>>> in absolute terms.
>>>
>>> To clarify what I mean, when using add_axes([0.1, 0.1, 0.8, 0.8]), the
>>> spines of the axes are always located a distance from the edge of the
>>> figure that is 10% of the size of the figure. However, in my case,
>>> since the font size is constant, I want to be able to say that the
>>> spines should always be e.g. 0.5" from the edge of the figure, which
>>> would avoid wasting space when making the figure larger.
>>>
>>> Is there a way to do this currently?
>>
>>
>> This is what I use for positioning in inches:
>>
>> def axes_inches(fig, rect, **kw):
>> """
>> Wrapper for Figure.add_axes in which *rect* is given in inches.
>> The translation to normalized coordinates is done immediately
>> based on the present figsize.
>>
>> *rect* is left, bottom, width, height in inches
>> *kw* are passed to Figure.add_axes
>>
>> """
>>
>> fw = fig.get_figwidth()
>> fh = fig.get_figheight()
>> l, b, w, h = rect
>> relrect = [l / fw, b / fh, w / fw, h / fh]
>> ax = fig.add_axes(relrect, **kw)
>> return ax
>>
>> Note, however, that this works correctly only if you don't change figsize
>> after calling it, so maybe it is not what you are looking for.
>>
>> Eric
>>
>>>
>>> (I am aware of set_tight_layout which would result in something
>>> similar, but this is not what I am after - I would like to be able to
>>> specify the exact absolute distance from the figure edge)
>>>
>>> Thanks!
>>> Tom
>>>
>>>
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>>

Thanks Eric - unfortunately I need to be able to resize the figure
interactively and have the axes follow.
So an alternative that would be equally useful for me would be to
specify axes using add_subplot or add_axes but then essentially have
an option to say that the distance to the edge of the figure should be
preserved when resizing. In other words, I'm not too concerned about
whether I specify the original axes position in relative units or in
inches, but the important thing is that the distance to the edge of
the figure stays constant in absolute terms.
Is this something that would be easy to build as an Axes subclass?
Cheers,
Tom
On 9 September 2015 at 23:12, Eric Firing <ef...@ha...> wrote:
> On 2015年09月09日 11:01 AM, Thomas Robitaille wrote:
>>
>> Hi everyone,
>>
>> I am interested in creating axes in an interactive figure where the
>> distance from the spines of the axes to the figure edge are constant
>> in absolute terms.
>>
>> To clarify what I mean, when using add_axes([0.1, 0.1, 0.8, 0.8]), the
>> spines of the axes are always located a distance from the edge of the
>> figure that is 10% of the size of the figure. However, in my case,
>> since the font size is constant, I want to be able to say that the
>> spines should always be e.g. 0.5" from the edge of the figure, which
>> would avoid wasting space when making the figure larger.
>>
>> Is there a way to do this currently?
>
>
> This is what I use for positioning in inches:
>
> def axes_inches(fig, rect, **kw):
> """
> Wrapper for Figure.add_axes in which *rect* is given in inches.
> The translation to normalized coordinates is done immediately
> based on the present figsize.
>
> *rect* is left, bottom, width, height in inches
> *kw* are passed to Figure.add_axes
>
> """
>
> fw = fig.get_figwidth()
> fh = fig.get_figheight()
> l, b, w, h = rect
> relrect = [l / fw, b / fh, w / fw, h / fh]
> ax = fig.add_axes(relrect, **kw)
> return ax
>
> Note, however, that this works correctly only if you don't change figsize
> after calling it, so maybe it is not what you are looking for.
>
> Eric
>
>>
>> (I am aware of set_tight_layout which would result in something
>> similar, but this is not what I am after - I would like to be able to
>> specify the exact absolute distance from the figure edge)
>>
>> Thanks!
>> Tom
>>
>>
>> ------------------------------------------------------------------------------
>> Monitor Your Dynamic Infrastructure at Any Scale With Datadog!
>> Get real-time metrics from all of your servers, apps and tools
>> in one place.
>> SourceForge users - Click here to start your Free Trial of Datadog now!
>> http://pubads.g.doubleclick.net/gampad/clk?id=241902991&iu=/4140
>> _______________________________________________
>> Matplotlib-users mailing list
>> Mat...@li...
>> https://lists.sourceforge.net/lists/listinfo/matplotlib-users
>>
>

Hi everyone,
I am interested in creating axes in an interactive figure where the
distance from the spines of the axes to the figure edge are constant
in absolute terms.
To clarify what I mean, when using add_axes([0.1, 0.1, 0.8, 0.8]), the
spines of the axes are always located a distance from the edge of the
figure that is 10% of the size of the figure. However, in my case,
since the font size is constant, I want to be able to say that the
spines should always be e.g. 0.5" from the edge of the figure, which
would avoid wasting space when making the figure larger.
Is there a way to do this currently?
(I am aware of set_tight_layout which would result in something
similar, but this is not what I am after - I would like to be able to
specify the exact absolute distance from the figure edge)
Thanks!
Tom

Thales,
Sorry for the delay in responding. This mailing list has actually moved to
https://mail.python.org/mailman/listinfo/matplotlib-users
Let's start up a new thread there with this information, plus also which
version of matplotlib you are using and which backend.
Cheers!
Ben Root
On Wed, Aug 26, 2015 at 6:12 PM, Thales Maia <tha...@gm...> wrote:
> Hello,
>
> I am migrating from octave to python and found matplotlib as an useful and
> powerful resource.
> I played with many animations examples and tried to build my own.
>
> The objective is to build a live plot from data coming from an arduino.
> The serial is working perfect (I can receive and plot data without
> problem).
>
> Unfortunately, when I resize my animation windows, I get curves
> overlapped.
>
> I must use blit because I have 6 subplots.
>
> Please, check the attached files:
> Python:
> -> animationR00.py (main)
> -> lib/
> -> AnalogPlot.py
> -> RingBuffer.py
> -> crc8.py
>
> Arduino:
> Teste.cpp (main)
> Teste.h
> ComSerial.cpp
> ComSerial.h
> OneWire.cpp
> OneWire.h
> I appreciate any help.
> -
> Thales Alexandre Carvalho Maia
>
>
>
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>
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