Matlab colorbar

Documentation Help Center. ColorBar properties control the appearance and behavior of a ColorBar object. By changing property values, you can modify certain aspects of the colorbar. Use dot notation to refer to a particular object and property:. Tick mark locations, specified as a vector of monotonically increasing numeric values. The values do not need to be equally spaced. If you do not want tick marks displayed, then set the property to the empty vector, [].

Example: [-1,0,1,2,3,4,5]. To specify the tick values, set the Ticks property. Tick mark labels, specified as a cell array of character vectors, a string array, a numeric array, a character vector, or a categorical array. By default, the colorbar labels the tick marks with numeric values.

Selection mode for TickLabelsspecified as one of these values:. To specify the tick labels, set the TickLabels property.

Tick label interpreter, specified as one of these values:. When you specify the tick labels, use dollar signs around each element in the cell array. Use TeX markup to add superscripts and subscripts, modify the text type and color, and include special characters in the labels. Modifiers remain in effect until the end of the text. Superscripts and subscripts are an exception because they modify only the next character or the characters within the curly braces. When you set the interpreter to 'tex'the supported modifiers are as follows.

This table lists the supported special characters for the 'tex' interpreter. The displayed text uses the default LaTeX font style. To change the font style, use LaTeX markup within the text. The maximum size of the text that you can use with the LaTeX interpreter is characters.

For multiline text, the maximum size of the text reduces by about 10 characters per line. The minimum and maximum tick mark values, specified as a two-element vector.By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service.

Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information. The output looks as follows:. How can I scale the ticks on the colorbar, i. In the picture above, I would like to scale the c-axis such that it shows this values for the related z:. The function caxisas I understand it, is not suited here, as it would just show the colors for a subsection of the z-axis and not for the whole z-axis.

For an arbitrary mapping between the z-values and the colorbar, it is possible to combine surfcontourf and contour as follows inspired by these two great answers :. As I wrote in your answerI think a better choice for showing two related values is not to create a new axis for that, but to show them one near the other.

Here is a suggestion:. Learn more. Asked 3 years, 2 months ago. Active 3 years, 2 months ago. Viewed 2k times. Discbrake Discbrake 1 1 silver badge 14 14 bronze badges. Active Oldest Votes. Do you want the values in the z-axis to be different from the c-axis? This is somewhat misleading EBH The question is updated, is it clear now or still misleading? Your intention was clear even before, it just seems to me either redundant or misleading to show the 2 axes for the same value.

But I guess it may be useful for some visualizations I think would rather put one of the values in parenthesis within the z-axis, like 5 0. EBH Thank you.

Yes, you are right, parenthesis are a great idea. One possibility could be to use SI Units on the z-axis and US or Imperial Units for the colorbar, as long as linear scaling is ensured. Now that I think about it, using a fourth parameter C with surfc in combination with the caxis command might be a better approach, see the updated answer. Are MWEs discouraged here?

Now fixed. Perfect, your version looks cleaner anyways, and thanks for the answer, great idea. Sign up or log in Sign up using Google.

Sign up using Facebook. Sign up using Email and Password. Post as a guest Name. Email Required, but never shown. The Overflow Blog.Documentation Help Center. If you set the colormap for the figure, then axes and charts in the figure use the same colormap. The new colormap is the same length number of colors as the current colormap. When you use this syntax, you cannot specify a custom length for the colormap. To learn more about colormaps, see What Is a Colormap? Create a surface plot and set the colormap to winter.

First, change the colormap for the current figure to summer. Now set the colormap back to your system's default value.

matlab colorbar

If you have not specified a different default value, then the default colormap is parula. Starting in Rb, you can display a tiling of plots using the tiledlayout and nexttile functions. Call the tiledlayout function to create a 2-by-1 tiled chart layout. Call the nexttile function to create the axes objects ax1 and ax2. Specify a different colormap for each axes by passing the axes object to the colormap function. In the upper axes, create a surface plot using the spring colormap. In the lower axes, create a surface plot using the winter colormap.

Specify the number of colors used in a colormap by passing an integer as an input argument to the built-in colormap. Use five colors from the parula colormap. Create a custom colormap by defining a three-column matrix of values between 0. Each row defines a three-element RGB triplet.

The first column specifies the red intensities. The second column specifies the green intensities.

matlab colorbar

The third column specifies the blue intensities. Create a surface plot of the peaks function and specify a colormap. Return the three-column matrix of values that define the colors used in the plot. Each row is an RGB triplet color value that specifies one color of the colormap.

Return the colormap values for a specific axes by passing the axes object to the colormap function. Create a tiling of two plots using the tiledlayout and nexttile functions, which are new functions starting in Rb. Then display two filled contour plots with different colormaps. Return the colormap values used in the upper plot by passing ax1 to the colormap function.

Load the spine data set that returns the image X and its associated colormap map. Display X using the image function and set the colormap to map.Documentation Help Center. Colorbars allow you to see the relationship between your data and the colors displayed in your chart. After you have created a colorbar, you can customize different aspects of its appearance, such as its location, thickness, and tick labels. For example, this colorbar shows the relationship between the values of the peaks function and the colors shown in the plot next to it.

The default location of the colorbar is on the right side of the axes. However, you can move the colorbar to a different location by setting the Location property. In this case, the ' southoutside' option places the colorbar below the axes. You can also change the thickness of the colorbar. The Position property controls the location and size of most graphics objects, including axes and colorbars.

Because this colorbar is horizontal, the fourth value in c.

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Position which corresponds to height controls its thickness. Here, the colorbar is narrowed and the axes position is reset so that there is no overlap with the colorbar.

Colorbar objects have several properties for modifying the tick spacing and labels. For example, you can specify that the ticks occur in only three places: You can change the limits of the colorbar to focus on a specific region of color. For example, you can narrow the limits and adjust the tick labels to reflect the new limits. The resulting colorbar excludes the dark blue shades that used to be on the left and the yellow shades that used to be on the right.

Add a descriptive label to the colorbar using the Label property. Because the Label property must be specified as a Text object, you must set the String property of the Text object first. Then you can assign that Text object to the Label property.

Creating Colorbars

The following command accomplishes both tasks in one step. A modified version of this example exists on your system. Do you want to open this version instead? Choose a web site to get translated content where available and see local events and offers. Based on your location, we recommend that you select:.

Select the China site in Chinese or English for best site performance. Other MathWorks country sites are not optimized for visits from your location. Toggle Main Navigation. Search Support Support MathWorks. Search MathWorks.Documentation Help Center. The labels input argument is specified as a string array or cell array of character vectors.

The number of elements in labels must match the length of the colormap. Other valid property-value pairs are any properties and values that can be applied to the title and labels of the colorbar axes. Colormap Editor contourcmap. Choose a web site to get translated content where available and see local events and offers. Based on your location, we recommend that you select:.

Select the China site in Chinese or English for best site performance. Other MathWorks country sites are not optimized for visits from your location.

Get trial now. Toggle Main Navigation. Search Support Support MathWorks. Search MathWorks. Open Mobile Search. Off-Canvas Navigation Menu Toggle. Syntax lcolorbar labels lcolorbar labels,'property',value, Description lcolorbar labels appends text labels to a colorbar at the center of each color band.

Property Description Location Controls the location of the colorbar. Valid values are 'vertical' the default or 'horizontal'.

3-D plot, Surface Plot and Color Map using MATLAB Live Editor

TitleString Text of title. XLabelString Text of x -label. YLabelString Text of y -label. ZLabelString Text of z -label. ColorAlignment Controls whether the colorbar labels are centered on the color bands or the color breaks.

Valid values are 'center' and 'ends'. See Also Colormap Editor contourcmap. Select a Web Site Choose a web site to get translated content where available and see local events and offers. Select web site. Controls the location of the colorbar.

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matlab colorbar

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