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sky

Sky colormap array

Since R2023a

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  • Sky colormap

Syntax

c = sky
c = sky(m)

Description

c = sky returns the sky colormap as a three-column array with the same number of rows as the colormap for the current figure (gcf). If no figure exists, the number of rows is 256. Each row in the array contains the red, green, and blue intensities for a specific color. The intensities are in the range [0, 1], and the color scheme looks like this image.

Sample of the sky colormap

example

c = sky(m) returns the colormap with m colors.

example

Examples

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Open Live Script

Plot a surface and assign the sky colormap.

surf(peaks)
colormap("sky")

Figure contains an axes object. The axes object contains an object of type surface.

Get the sky colormap array and reverse the order. Then apply the modified colormap to the surface.

c = sky;
c = flipud(c);
colormap(c)

Figure contains an axes object. The axes object contains an object of type surface.

Open Live Script

Get a downsampled version of the sky colormap containing only twenty colors. Then display the contours of the peaks function by applying the colormap and interpolated shading.

c = sky(20);
surf(peaks)
colormap(c)
shading interp

Figure contains an axes object. The axes object contains an object of type surface.

Open Live Script

Heatmap charts use the 256-sampling of the sky colormap by default. You can change the sampling by specifying the Colormap name-value argument.

For example, create two heatmap charts in a 2-by-1 tiled chart layout. The top chart uses the default set of 256 colors, and the bottom chart uses only two colors.

tiledlayout(2,1,TileSpacing="compact")

% Top chart with default colors
nexttile
heatmap(magic(10))

% Bottom chart with two colors
nexttile
heatmap(magic(10),Colormap=sky(2))

Figure contains objects of type heatmap.

Input Arguments

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Number of colors, specified as a nonnegative integer. The default value of m is the number of colors in the current figure's colormap. If no figure exists, the default value is 256.

Data Types: single | double

Version History

Introduced in R2023a

See Also

Functions

Topics