Hi Federico,
Thanks for trying it out and for the feedback!
Indeed, I started out writing a simple IPython notebook along the lines you
suggested, with just a couple of sliders and plots, but it quickly became
too slow and unwieldy for quick explorations, hence the slightly more
elaborate GUI.
I agree that the reason for the 3D plot on the right may not be obvious at
the moment. Personally, I find it useful to get a feel for what the
representable colors in CIELab space (and the cross sections for L=const)
look like, but when simply using a linear interpolation between two colors
(as I'm doing at the moment) it may not be needed to visualise it in 3D.
The reason I added it is that while playing around with the GUI I got the
impression that my initial suggestion of using a simple linear
interpolation between two colors may not result in the best-looking
colormaps (this is confirmed by Nathaniel's reply). I'm currently toying
with the option to use curved interpolations, and for thee it would be very
useful IMHO to see what they look like in 3D.
Btw, I have refactored my code a bit and it should be easy to write a
simpler UI (e.g. in an IPython notebook) which doesn't need the other
dependencies (also, I could drop the wxpython dependency because some
conflict with Vispy which I had experienced seems to have disappeared). If
you like, feel free to give it a shot to write a UI the way you imagine it.
It's always good to have more options for exploration. :)
Best wishes,
Max
2015-01-08 17:44 GMT+00:00 Federico Ariza <ariza.feder...@gmail.com>:
> Nice job.
>
> I find your GUI a little bit confusing (new to colormap stuff) but I
> like the idea, basically I find it overkill, I would replace the gui
> by a plot and a couple of slider widgets something simpler to
> integrate without new dependencies.
> Do you really need the third 3d plot on the right?
>
> On Mon, Jan 5, 2015 at 9:37 PM, Maximilian Albert
> <maximilian.alb...@gmail.com> wrote:
> > Happy new year everyone!
> >
> > Apologies for the long silence. I was snowed in with work before
> Christmas
> > and then mostly cut off from the internet for the past two weeks.
> > Fortunately, I had a chance over the holidays to flesh out the GUI which
> I
> > mentioned in my previous email. You can find it here:
> >
> > https://github.com/maxalbert/colormap-selector
> >
> > Basically, it allows you to pick the start/end color of a colormap from
> two
> > cross sections in CIELab space and interpolates those colors linearly
> (see
> > the README file for more details). Currently there is one scatterplot to
> > illustrate the resulting colormap but it can be trivially extended to
> show
> > more interesting sample plots. There are still a few things missing that
> I'd
> > like to add but at least it's in a state where it can be used and I'd be
> > grateful for feedback, especially with regard to the colormaps generated
> > with it (I do have some opinions myself but it would be interesting to
> hear
> > others' first).
> >
> > Regarding our ongoing discussion, I had a very useful chat with two
> > colleagues before Christmas which spurred more thoughts. But I guess it's
> > best to discuss them in a separate email when I'm less tired. ;)
> >
> > Best wishes,
> > Max
> >
> >
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>
>
> --
> Y yo que culpa tengo de que ellas se crean todo lo que yo les digo?
>
> -- Antonio Alducin --
>
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hub for all things parallel software development, from weekly thought
leadership blogs to news, videos, case studies, tutorials and more. Take a
look and join the conversation now. http://goparallel.sourceforge.net
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