the colours a colour map gives those numbers, MATLAB’s num2rgb

Syntax

rgb = num2rgb(values)

WhiteJet over the extent of the values.

rgb = num2rgb(values, 'hot', range=[0, 6])

Another map, a fixed range.

rgb = num2rgb(values, 'LaboTeX', N=16)

One of 16 colours of a named map.

rgb = num2rgb(values, blue2redColorMap(8))

One of eight colours of a matrix.

Description

The values are scaled to the range and clipped to it, and take one of the N colours a named map is sampled at, or of the rows of a matrix of colours: the value at the fraction t of the range the colour ceil(t N), counted from one, the lowest value the first.

Input

values an array of numbers

Keywords

keyword	default	description
`colormap`	`'WhiteJet'`	the name of a colour map, a matplotlib map or an n x 3 matrix of colours
`range`	`None`	[lower, upper] limit of the values, by default their minimum and maximum
`N`	`255`	the number of colours a named map is sampled at; a matrix has its rows

Output

rgb n x 3 rgb triplets, one row per value

Used on

TiltAndTwistBoundaries

MATLAB’s num2rgb

source

Citing this page. This page is part of the documentation of MTEX, a free and open source MATLAB toolbox for analyzing and modeling crystallographic textures. It was written by The MTEX Developers and is published at https://mtex-toolbox.github.io/num2rgb_py.html. If you use MTEX, or reuse text or figures from this page, in your research, please cite

F. Bachmann, R. Hielscher, H. Schaeben: Texture Analysis with MTEX - Free and Open Source Software Toolbox, Solid State Phenomena 160 (2010), 63-68. 10.4028/www.scientific.net/SSP.160.63

BibTeX

@article{bachmann2010mtex,
  author  = {F. Bachmann and R. Hielscher and H. Schaeben},
  title   = {Texture Analysis with MTEX - Free and Open Source Software Toolbox},
  journal = {Solid State Phenomena},
  volume  = {160},
  pages   = {63-68},
  year    = {2010},
  doi     = {10.4028/www.scientific.net/SSP.160.63},
  url     = {https://doi.org/10.4028/www.scientific.net/SSP.160.63}
}

Other papers describing specific MTEX methods are listed under Publications — please cite the one that best fits your application. The MTEX source code is licensed under the GNU General Public License v2.0; the text and figures of this documentation are licensed under CC BY 4.0, which permits reuse — including by automated systems — provided The MTEX Developers and this page are credited.

num2rgb