Algorithm (Workflow)

This function, SGdimofFilename, is designed to extract volume and dimension information from a specific filename format used in the SolidGeometry library. The function processes filenames that adhere to a particular structure and returns the relevant numerical data.

Input Parameters

• fn: A string representing the filename. This filename is expected to be in a specific format that includes volume and dimension information.

Output

• nvf: A vector containing the volume and dimensions extracted from the filename. If the filename does not match the expected format, the function returns false.

Algorithm Steps

1. The function begins by splitting the input filename fn using specific delimiters: 'VOL=', '[', 'x', and ']'. This is done using the split function, which breaks the string into parts based on these delimiters.
2. The resulting parts are then converted to numerical values using str2double. This function attempts to convert each part of the split string into a double-precision number.
3. Any non-numeric parts (which result in NaN values) are removed from the array b using logical indexing. This step ensures that only valid numbers are retained.
4. The function checks the number of elements in the array b. If there are exactly four elements, it assigns these to nvf. These four elements represent the volume and the three dimensions extracted from the filename.
5. If the number of elements is not four, the function returns false, indicating that the filename did not match the expected format.

This function is useful for parsing filenames that encode geometric information, allowing for easy extraction and use of this data in further processing or analysis.