Algorithm (Workflow)

The function patchofSG is designed to create a patch structure from a solid geometry (SG). It is part of the SG-Library and was developed by Tim Lueth. The function can handle both individual solid geometries and cells of solids, returning a list of patches.

Input Parameters

• SG: This is the solid geometry input. It can be a single solid geometry or a cell array of solid geometries.
• realp: This is an optional boolean parameter. If set to true, the function creates a real patch. The default value is false.

Output

• h: The function returns a handle to a patch structure or patch class.

Algorithm Details

The function begins by setting the default value of realp to false. It checks if the number of input arguments is greater than or equal to 2 and if the second argument is not empty. If both conditions are met, it assigns the value of the second argument to realp.

The function then checks if SG is a cell array. If it is, it initializes an empty array h and iterates over each element in the cell array. For each element, it calls patchofSG recursively with the separated solid geometry and the visibility parameter vis. The results are concatenated into h.

If SG is not a cell array, the function assigns the face list SG.FL to h.Faces and the vertex list SG.VL to h.Vertices. If realp is true, it creates a patch using the structure h.

There is a commented-out section that, if enabled, would create a figure and set the visibility of the patch to 'on' if no output arguments are specified.