Algorithm (Workflow)

This function, SGwatertightofSG, is designed to create a watertight reconstruction of a given solid geometry (SG) using a voxel-based approach. Below is a detailed explanation of the algorithm and its parameters:

Input Parameters

• SG: This is the input solid geometry that needs to be reconstructed into a watertight model.

Output Results

• SGN: This is the output, a watertight reconstruction of the input solid geometry with a resolution of 128 x 128 x 128.

Algorithm Steps

1. The function begins by converting the input solid geometry (SG) into a voxel model using the function VMofSG. The voxel model is created with a resolution of 128 x 128 x 128. This step is crucial for discretizing the geometry into a grid format that can be processed further.
2. Next, the function attempts to create a triangulation model from the voxel model using SGofVMdelaunay. This function takes the voxel model (VM) and voxel size (vs) as inputs and returns a triangulated surface model (SGN). The voxel size is adjusted by reordering its dimensions to [2 1 3] to match the expected input format for the triangulation function.
3. Alternative methods for creating the triangulation model, such as SGofVMmarchcube and SGofVMisosurface, are commented out. These methods are mentioned as failing in the header comments, indicating that they are not reliable for this task.
4. If no output argument is specified (i.e., nargout==0), the function will visualize the results. It uses SGfigure to set up a 3D plot and SGplotalpha to display the reconstructed model (SGN) in white with 90% opacity and the original model (SG) in red.

The function is part of a library designed for solid geometry processing and is intended to provide a quick method for generating watertight models, which are essential for applications like finite element analysis.