# DIMTIH System Variable [GstarCAD 2025](Help%20System/GSTARCAD/2025/Index.md) → [System Variables](Help%20System/GSTARCAD/2025/System%20Variables/(System%20Variables).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_2025_en-US/detail/systemVariables/DIMTIH.html) · © Gstarsoft Co., Ltd.