On Mon, Feb 23, 2015 at 10:46 AM, Eric Firing <efir...@hawaii.edu> wrote:
> On 2015/02/18 2:39 PM, Nathaniel Smith wrote:
>>
>> On Feb 16, 2015 3:39 PM, "Eric Firing" <efir...@hawaii.edu> wrote:
>>>
>>>
>>> On 2015/02/16 1:29 PM, Michael Waskom wrote:
>>>
>>>> Nathaniel's January 9 message in that thread (can't figure out how to
>>>> link to it in the archives) had a suggestion that I thought was very
>>>> promising, to do something similar to Parula but rotate around the hue
>>>> circle the other direction so that the hues would go blue - purple - red
>>>> - yellow. I don't think we've seen an example of exactly what it would
>>>> look like, but I reckon it would be similar to the middle colormap here
>>>>
>>>> http://earthobservatory.nasa.gov/blogs/elegantfigures/files/2013/08/three_perceptual_palettes_618.png
>>>> (from the elegant figures block series linked above), which I've always
>>>> found quite attractive.
>>>
>>>
>>> Certainly it can be considered--but we have to have a real
>>> implementation.
>>
>>
>> While I hate to promise vaporware, I actually was planning to have a
>> go at implementing such a colormap in the next few weeks, based on
>> optimizing the same set of parameters that viscm visualizes... FWIW.
>
>
> It might be worth quite a bit--and the sooner, the better.
While it's taking longer than hoped, just to reassure you that this
isn't total vaporware, here's a screenshot from the colormap designer
that Stéfan van der Walt and I have been working on... still needs
fine-tuning (which at this point probably won't happen until after I
get back from PyCon), but we like what we're seeing so far :-)
The colormap shown has, by construction, perfect lightness linearity
and perfect perceptual uniformity, according to the better-than-CIELAB
model used by the viscm tool I linked upthread.
--
Nathaniel J. Smith -- http://vorpus.org
------------------------------------------------------------------------------
Dive into the World of Parallel Programming The Go Parallel Website, sponsored
by Intel and developed in partnership with Slashdot Media, is your 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/
_______________________________________________
Matplotlib-devel mailing list
Matplotlib-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/matplotlib-devel
