#578 Feature request: palette

[Adam Majewski]

Hi
1. Is it possible to add to gnuplot :
path through CIELAB colour space (3d), like
http://www.mrao.cam.ac.uk/~dag/CUBEHELIX/3d-default.png
https://storage.googleapis.com/groundai-web-prod/media/users/user_221882/project_346618/images/x1.png

( image from : https://www.groundai.com/project/good-colour-maps-how-to-design-them/1

https://kwstat.github.io/pals/articles/pals_examples.html
see pal.cube

1. add to test palette nmae of the palette which woulb be in the title of image ?
   like : test palette "jet"

2. add test images like :

3. https://kwstat.github.io/pals/
4. https://peterkovesi.com/projects/colourmaps/colourmaptestimage.html
5. https://blogs.mathworks.com/steve/2017/07/24/colormap-test-image/?s_tid=blogs_rc_2

Adam

[Adam Majewski]

https://commons.wikimedia.org/wiki/File:0_3d_60_75_v.png

[Ethan Merritt]

Ticket moved from /p/gnuplot/support-requests/248/