3(a) How to Return Colormap Values for Specific Axis First create a surface plot of the peaks function and specify a colormap.įig. Order to return the values of colormap, ‘cmap’ command is used.Try the aboveĮxample along with the following code. 2(b) How to Return Colormap Values Used in Plot To the custom colormap settings encircled in the figure 2(b). For example, this matrix defines a colormap containing five colors.

Third column specifies the blue intensities.

Second column specifies the green intensities.

First column specifies the red intensities.

Each row defines a three-element RGB triplet vector

Create a custom colormap by defining a three-column matrix of.

The intensities must be in the range from 0 to1. When you use this syntax, you cannot specify a custom length for the colormap.Ĭreate a custom colormap, you have to specify map as a three-column matrix of RGB triplets whereĮach row defines one color. The new colormap is the same length (number of colors) as the current colormap. If you set the colormap for the figure, then axes and charts in the figure use the same colormap.

Of 0 indicates no color and a value of 1 indicates fullĬolormap map sets the colormap for the current figure to one of the predefined colormaps. DescriptionĪ colormap can have upto 255 rows which shows how many

MATLAB draws the objects by mapping data values to colors in the colormap. The RGB values are triplets which means that they’re in the order of Red, Green and Blue and they can range from 0 to 1.

How Surface Plot Data Relates to a ColormapĬolormap is a three color matrix that specifies the red, green and blue content for graphics objects such as surface, image, and patch objects.Return Colormap Values for Specific Axis.

Matlab ed color plot