Generate hue-saturation-lightness colormaps
USAGE: hslcolormap(N,H,S,L)
INPUTS:
N: number of colors in colormap.
H: hue stops (optional). %can also be specified using a string: rygcbmRYGCBM
S: saturation stops (optional)
L: Lightness stops (optional)
The stops are placed evenly over the colorscale. Parameter examples:
H=[0 1/6]; %colorscale runs from red to yellow
S=[0 1]; %gray to fully saturated
L=[.3 1 .3]; % dark-bright-dark
Using L with two-stops (e.g. L=[.2 .8]) makes it easy to distinguish
high and low values.
Using a symmetric L with 3 stops (e.g. L=[.2 1 .2]) is useful for divergent
colorscales.
Discontinuities in the colormap can be indicated with nans.
EXAMPLE:
surf(peaks(200),'edgecolor','none');
caxis([-6 6])
hslcolormap(300,'g.m',1,[.1 1 .1]);
colorbar
(c) Aslak Grinsted 2014
Aslak Grinsted (2021). hslcolormap (https://www.mathworks.com/matlabcentral/fileexchange/48586-hslcolormap), MATLAB Central File Exchange. Retrieved .
Inspired by: hsl2rgb and rgb2hsl conversion, Colorspace Transformations
Inspired: CubeHelix Colormap Generator: Beautiful and Versatile!, ColorBrewer: Attractive and Distinctive Colormaps, MatPlotLib Perceptually Uniform Colormaps
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!Create scripts with code, output, and formatted text in a single executable document.
the dot inserts a discontinuity in the hue at that point.
Can you explain the effect of dot in the hue codes?