colormap

View and set current colormap.

📝 Syntax

• colormap(map)

• colormap(target ,map)

• cmap = colormap()

• cmap = colormap(target)

📥 Input argument

• map - colormap name, 'default' or RGB triplets (matrix).

• target - Target: figure or axes.

📤 Output argument

• cmap - Colormap values: RGB triplets (matrix).

📄 Description

colormap allows to view and set the colormap used into a plot.

💡 Examples

f = figure()
x = linspace(-1, 1, 1024)' * ones(1, 1024);
y = x';
Z = exp(-(x .^ 2 + y .^ 2) / 0.4);
imagesc(Z);
colormap('summer')

f = figure()
x = linspace(-1, 1, 1024)' * ones(1, 1024);
y = x';
Z = exp(-(x .^ 2 + y .^ 2) / 0.4);
imagesc(Z);
colormap('gray')

f = figure()
x = linspace(-1, 1, 1024)' * ones(1, 1024);
y = x';
Z = exp(-(x .^ 2 + y .^ 2) / 0.4);
imagesc(Z);

map = [0 0 0.3;
    0 0 0.4;
    0 0 0.5;
    0 0 0.6;
    0 0 0.8;
    0 0 1.0];
colormap(map)

🔗 See also

rgbplot.

🕔 History

Version	📄 Description
1.0.0	initial version