# RASTERTHRESHOLD System Variable [GstarCAD 2026](Help%20System/GSTARCAD/2026/Index.md) → [System Variables](Help%20System/GSTARCAD/2026/System%20Variables/(System%20Variables).md) → [R](Help%20System/GSTARCAD/2026/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. --- [Original help](https://www.gstarcad.net/help/GstarCAD_2026_en-US/detail/systemVariables_Rgsv/RASTERTHRESHOLD.html) · © Gstarsoft Co., Ltd.