Re: [matplotlib-devel] yet another fancy arrow, etc

[Jae-Joon L. <lee...@gm...>]

>
> Well merging is obviously better. I wrote YAArrow to support
> plain-vanilla annotations.  AFAIK, they are used nowhere else, so as
> long as we could come up with one arrow class that works with
> plain-vanilla and fancy annotations, that would be good.  But it may
> be easier said than done.  These annotation arrows are really helper
> classes that are instantiated by higher level functions (eg users most
> likely won't be creating them themselves) and since they all have the
> basic patch interface, I don't think having a proliferation of them is
> the worst thing in the world, though the ideal is to have as few
> classes as possible that serve as many cases as possible.
>
>

Thanks.
Yes, merging seems better to me too. And it seems that I can slightly
tweak the current interface of my class so that it get along well with
pre-existing classes.
I'll work on the merge and post the patch sometime soon.

>
> I believe you are looking for the scanline boolean algebra -- search
> the antigrain demo page
>
>  http://www.antigrain.com/demo/index.html
>
> for scanline_boolean.cpp.  Of course, we would need to support the
> other major backends too....
>

I'm not sure if scanline_boolean does what I want (but I have to admit
that I haven't looked at its code carefully yet). Do you know if it is
possible to stroke along the union of the two paths (this is what I
want)? My impression is that scanline thing is for filling the path.
Anyhow, I'll take a more look.

>
> This appears to be LGPL, so we will not be using it in the main distro.
>

Yes, it's LGPL.
And I didn't mean to include it in mpl.
Anyhow, I think I'll go with the first method for the moment.

Thanks,

-JJ