Algorithm (Workflow)

This function, gcahandleofSG, is designed to return the handle to all patches in the current graphics axis (gca). It is part of the SolidGeometry library and is used for visualization purposes, such as changing color, transparency, or creating a solid geometry (SG).

Input Parameters

The function does not take any input parameters.

Output

The function returns a variable h, which is the handle of all patches in the current graphics axis.

Algorithm Steps

1. Retrieve all children of the current graphics axis using get(gca, 'Children').
2. Filter these children to only include those that are patches by using the ispatch function.
3. Assign the filtered handles to the variable h.
4. If there are no output arguments specified (i.e., nargout == 0), perform the following actions:
   • Call setplotlight with the handles h, color 'r', and transparency 0.90.
   • Call the show function to display the changes.

Example Usage

The function can be used in a script as follows:

SGfigure; 
view(-30,30); 
SGplot(SGbox([30,20,10]));
setplotlight(gcahandleofSG,'b',0.2), show;

This example creates a figure, sets the view, plots a box, and then sets the plot light with a blue color and 0.2 transparency.