# INTERFEREOBJVS System Variable [GstarCAD 2019](Help%20System/GSTARCAD/2019/Index.md) → [System Variables](Help%20System/GSTARCAD/2019/System%20Variables/(System%20Variables).md) → [I](Help%20System/GSTARCAD/2019/System%20Variables/I/(I).md) **Function Description:** The INTERFEREOBJVS system variable is used to set the visual style for interference objects. | | | | --- | --- | | Type | Strings | | Saved in | Drawing | | Initial value | Real | The INTERFEREOBJVS system variable could only set the visual style to save in a drawing. Users could not use the PURGE command to delete the visual style specified by INTERFEREOBJVS system variable. --- ## Other versions with matching text [GstarCAD 2016](../../../2016/System%20Variables/I/INTERFEREOBJVS%20System%20Variable--a23b993f164a.md) · [GstarCAD 2017](Help%20System/GSTARCAD/2017/System%20Variables/I/INTERFEREOBJVS%20System%20Variable--a23b993f164a.md) · [GstarCAD 2018](../../../2018/System%20Variables/I/INTERFEREOBJVS%20System%20Variable--a23b993f164a.md) · [GstarCAD 2020](../../../2020/System%20Variables/I/INTERFEREOBJVS%20System%20Variable--a23b993f164a.md) · [GstarCAD 2021](Help%20System/GSTARCAD/2021/System%20Variables/I/INTERFEREOBJVS%20System%20Variable--a23b993f164a.md)