# RASTERTHRESHOLD System Variable [GstarCAD 2021](Help%20System/GSTARCAD/2021/Index.md) → [System Variables](Help%20System/GSTARCAD/2021/System%20Variables/(System%20Variables).md) → [R](Help%20System/GSTARCAD/2021/System%20Variables/R/(R).md) ## Function Description: The RASTERTHRESHOLD system variable is used to specify a raster image threshold in megabytes when printing. | | | | --- | --- | | Type | Integer | | Saved in | Registry | | Initial value | 20 | If the plot raster image exceeds this value, it availability of system memory is checked. It may interrupt plotting if images taking too much memory. --- ## Other versions with matching text [GstarCAD 2016](../../../2016/System%20Variables/R/RASTERTHRESHOLD%20System%20Variable.md) · [GstarCAD 2017](Help%20System/GSTARCAD/2017/System%20Variables/R/RASTERTHRESHOLD%20System%20Variable.md) · [GstarCAD 2018](Help%20System/GSTARCAD/2018/System%20Variables/R/RASTERTHRESHOLD%20System%20Variable.md) · [GstarCAD 2019](Help%20System/GSTARCAD/2019/System%20Variables/R/RASTERTHRESHOLD%20System%20Variable.md) · [GstarCAD 2020](Help%20System/GSTARCAD/2020/System%20Variables/R/RASTERTHRESHOLD%20System%20Variable.md) · [GstarCAD 2022](Help%20System/GSTARCAD/2022/System%20Variables/R/RASTERTHRESHOLD%20System%20Variable.md)