# LOFTPARAM System Variable [GstarCAD 2026](Help%20System/GSTARCAD/2026/Index.md) → [System Variables](Help%20System/GSTARCAD/2026/System%20Variables/(System%20Variables).md) **Function Description:** The LOFTPARAM system variable is used to control the shapes for loft solids and surfaces. | | | | --- | --- | | Type | Bitcode | | Saved in | Drawing | | Initial value | 7 | | Range | 0 ~ 15 | **System Variable Value:** **1:** no twist(minimize the twist between cross sections) **2:** align direction(align the start and end directions for each section curves) **4:** simplify(generate simple solids and surface, such as cylinder or planes, rather than spline solids or surfaces ) **8:** close(close the surface or solid between the first and last cross section) --- [Original help](https://www.gstarcad.net/help/GstarCAD_2026_en-US/detail/systemVariables/LOFTPARAM.html) · © Gstarsoft Co., Ltd.