[Matplotlib-users] annotation arrow shrink

[Ilya Flyamer]

Thanks Adrien,

This is very helpful and pointed me towards a mistake I had made, thank you!

I am still not sure why sometimes arrows of my annotations would start from
the middle of the text and are not clipped, but I can't reproduce it in
simple examples, so have to presume it's some strange side effect from my
other code.

Best,
Ilya

2018-05-29 23:21 GMT+01:00 vincent.adrien at gmail.com <
vincent.adrien at gmail.com>:

> Hi Ilya,
>
> Using a null-value for `shrinkA` or `shrinkB` does not achieve what you
> want?
>
> FWIW, I think that the method used under the hood by `FancyArrowPatch` is
> located [here](https://github.com/matplotlib/matplotlib/blob/master/
> lib/matplotlib/patches.py#L2706), while the percentage-to-points
> machinery in `Axes.annotate` (when *arrowstyle* is `None` and using the
> *shrink* parameter) seems to start [there](https://github.com/mat
> plotlib/matplotlib/blob/master/lib/matplotlib/text.py#L2128).
>
> Attached is a small snippet demonstrating both the percentage-based and
> the point-based shrinking possibilities, in case this might help.
>
> Best,
> Adrien
>
>
> On 05/29/2018 11:20 AM, Ilya Flyamer wrote:
>
>> Hi all,
>>
>> I am trying to figure out how shrinkA works for arrows in annotations,
>> and it seems very confusing from experimenting with it - is there an
>> explanation somewhere online?
>> I simply wanted to ensure that the arrow starts at the edge of the
>> bounding box, but it's not so easy, it seems... Is this not the right way
>> to do this, maybe?
>>
>> Thanks!
>>
>> Cheers,
>> Ilya
>>
>>
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>
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