# DIMTIH System Variable [GstarCAD 2026](Help%20System/GSTARCAD/2026/Index.md) → [System Variables](Help%20System/GSTARCAD/2026/System%20Variables/(System%20Variables).md) → [D](Help%20System/GSTARCAD/2026/System%20Variables/D/(D).md) ## Function Description: The DIMTIH system variable is used to control the position of dimension text in extension line for all types of dimension except ordinate dimension. | | | | --- | --- | | Type | Parameter | | Saved in | Drawing | | Initial value | On (Imperial) or Off (Metric) | ## System Variable Value: **Off:** align the text and dimension line **On:** draw text horizontally --- [Original help](https://www.gstarcad.net/help/GstarCAD_2026_en-US/detail/systemVariables/DIMTIH.html) · © Gstarsoft Co., Ltd.