Why do we need a 'base code'? What is the logic of code placement

Question: Why do we need a 'base code'? What is the logic of code placement

Answer: The current setting for grading when importing DXF files follows the method used by domestic 2D CAD software. During import, the pattern pieces will be aligned according to the base size. For example, if the current project includes {160, 165, 170 (base size), 175} and you import a DXF file with sizes {S, M (base size), L, XL}, the M size pattern will be imported to the 170 size, and the S, L, and XL sizes will be sequentially imported to the 165, 175, and 175 sizes. The XL size will not be imported because there is no corresponding size. The 160 size will be filled with the closest available pattern information, in this case, the S size.