Algorithm (Workflow)

This function, popgcf, is part of the SolidGeometry library and is used to manage graphics objects in MATLAB figures. It is particularly useful when recording all handles is not feasible.

Input Parameters

The function popgcf does not take any input parameters directly. Instead, it relies on global variables and the current figure context.

Global Variables

• pushgcfhandle: A global variable that stores handles of graphics objects that should be retained in the current figure.
• pushgcftitle: A global variable that stores the title to be set for the current figure.

Algorithm Steps

1. Retrieve all graphics object handles in the current figure using findobj(gcf).
2. Determine which handles are not part of pushgcfhandle using setdiff.
3. Delete the graphics objects associated with these handles using delete(delh).
4. Set the title of the current figure to the value stored in pushgcftitle using title(pushgcftitle).

Example Usage

The function is typically used in a sequence of commands to manage figure content:

SGfigure; 
SGbox; 
pushgcf; 
CPSplot(PLcircle(30)); 
pause(1); 
popgcf;

In this example, a figure is created, a box is drawn, and the current state is saved with pushgcf. After plotting a circle and pausing, popgcf is called to restore the figure to its previous state.