# TRIMMODE System Variable [GstarCAD 2021](Help%20System/GSTARCAD/2021/Index.md) → [System Variables](Help%20System/GSTARCAD/2021/System%20Variables/(System%20Variables).md) → [T](Help%20System/GSTARCAD/2021/System%20Variables/T/(T).md) **Function Description:** The TRIMMODE system variable is used to control whether to trim selected edges for fillet and chamfer. | | | | --- | --- | | Type | Integer | | Saved in | Registry | | Initial value | 1 | | Range | 0,1 | **System Variable Value:** **0:** do not trim selected edges **1:** trim the selected edge to endpoints of chamfer lines and fillet arcs --- ## Other versions with matching text [GstarCAD 2016](../../../2016/System%20Variables/T/TRIMMODE%20System%20Variable--77e07543da87.md) · [GstarCAD 2017](Help%20System/GSTARCAD/2017/System%20Variables/T/TRIMMODE%20System%20Variable--77e07543da87.md) · [GstarCAD 2018](../../../2018/System%20Variables/T/TRIMMODE%20System%20Variable--77e07543da87.md) · [GstarCAD 2019](../../../2019/System%20Variables/T/TRIMMODE%20System%20Variable--77e07543da87.md) · [GstarCAD 2020](../../../2020/System%20Variables/T/TRIMMODE%20System%20Variable--77e07543da87.md) · [GstarCAD 2022](Help%20System/GSTARCAD/2022/System%20Variables/T/TRIMMODE%20System%20Variable--77e07543da87.md)