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rgbplot

Syntax

``rgbplot(map)``

Description

example

````rgbplot(map)` plots the red, green, and blue intensities of the specified colormap.```

Examples

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Plot the `parula` colormap, and display a colorbar as a visual reference.

```rgbplot(parula) hold on colormap(parula) colorbar('Ticks',[])```

Create a custom colormap and plot it. Then display a colorbar as a visual reference.

```r = (0:.1:.9)'; g = r.^1.8; b = r.^2.1; mymap = [r g b]; rgbplot(mymap) hold on colormap(mymap) colorbar('Ticks',[])```

Input Arguments

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Colormap to plot, specified as a three-column matrix of RGB triplets. An RGB triplet is a three-element row vector whose elements specify the intensities of the red, green, and blue components of a color. The intensities must be in the range [0, 1]. For example, here is a colormap that contains five colors:

```map = [0.2, 0.1, 0.5 0.1, 0.5, 0.8 0.2, 0.7, 0.6 0.8, 0.7, 0.3 0.9, 1, 0];```

This table lists the RGB triplet values for common colors.

ColorRGB Triplet
yellow`[1,1,0]`
magenta`[1,0,1]`
cyan`[0,1,1]`
red`[1,0,0]`
green`[0,1,0]`
blue`[0,0,1]`
white`[1,1,1]`
black`[0,0,0]`

Alternatively, you can create the matrix by calling one of the predefined colormap functions. Call the function as the input argument to the `rgbplot` function. For example, this command plots the `parula` colormap.

`rgbplot(parula)`

Data Types: `double` | `single`