Find graphics objects with specific properties (2024)

FAQs

How do you find all objects in MATLAB? ›

h = findall( objhandles , prop 1, value 1,..., prop N, value N) returns the handles of all objects in the hierarchy that have the specified properties set to the specified values. For example, h = findall(gcf,'Type','text','Color','r') returns all text objects in the current figure that have a red color.

To use findobj , pick a property value that uniquely identifies the object. This example uses the text String property: hText = findobj('String','\leftarrowsin(t) = . 707');

Using the get() function we can examine the properties on the figure. In MATLAB this will return an object, but in Octave, this will return a struct.

Graphics objects are the components used by MATLAB^® to create visualizations of data. Each object plays a specific role in the graphics display. For example, a line plot consists of a figure object, an axes object, and a chart line object. You can customize graphics objects by setting their properties.

The findprop method returns the matlab. metadata. Property object for the specified object and property. The property can also be a dynamic property created by the addprop method of the dynamicprops class.

Hmatch = findobj( H ,'-class', class ) finds all objects belonging to the specified class. Hmatch = findobj( H ,'-isa', class ) finds all objects belonging to the specified class.

To use Chebfun in matlab, you will need to add the `chebfun` directory to the matlab path as above. Most Chebfun commands are overloads of familiar matlab commands — for example sum(f) computes an integral, roots(f) finds zeros, and u = L\f solves a differential equation.

Additionally, this example uses the Mux (Simulink) block to combine the CAN messages to be transmitted into a single vector. If your CAN Pack blocks are configured to output as a bus, then use the Vector Concatenate (Simulink) block to combine the CAN messages instead.

caxis auto lets MATLAB compute the color limits automatically using the minimum and maximum data values.

Properties contain object data. Classes define the same properties for all objects, but each object can have unique data values. Property attributes control what functions or methods can access the property. You can define functions that execute whenever you set or query property values.

How do you check if an object property exists in MATLAB? ›

You can verify the existence of a property of an object before attempting to set it by using isprop in an if -statement. Create a line plot and assign a variable to the object. Use an if -statement to verify that object p has the LineStyle property.

In plot edit mode, double-clicking a mapped object activates the MATLAB Property Editor for that object. From the Property Editor you can launch the Property Inspector, a GUI that lists the properties and values of the selected object and allows you to modify them.

Images that are generated by a computer are called computer graphics. Examples are photographs, drawings, line art, mathematical graphs, line graphs, charts, diagrams, typography, numbers, symbols, geometric designs, maps, engineering drawings, or other images. Graphics often combine text, illustration, and color.

When MATLAB creates a plot, it creates a series of graphics objects. Figures, axes, lines, patches, and text are examples of graphics objects. The figure below has three graphics objects -- an axes, a line, and a text object.

Project-Wide Search

If you want to search referenced project files, open the referenced project. On the Project tab, click the down arrow to expand the Tools gallery. Under Project Files, click Search. Alternatively, type in the file filter box, and the project provides a link to try searching inside files instead.

The all function reduces such a vector of logical values to a single condition. In this case, B = all(A < 0.5) yields logical 0 . This makes all particularly useful in if statements.

To view the variables in the workspace, use the Workspace browser. To view the contents of MAT-files, use the Details Panel of the Current Folder browser. In MATLAB Online™, to view the contents of MAT-files, preview them by clicking the Preview button to the right of the MAT-file in the Files browser.