# DIMARC Command
[GstarCAD 2021](Help%20System/GSTARCAD/2021/Index.md) → [Commands](Help%20System/GSTARCAD/2021/Commands/(Commands).md) → [D](Help%20System/GSTARCAD/2021/Commands/D/(D).md)
The DIMARC command is used to create an arc length dimension.
## Command Access:
> **Ribbon:** Annotation \> Dimension\> Dimension \> Arc Len
> **Menu:** Dimension \> Arc Length
> **Command:** DIMARC
## Command Prompts:
> Select arc or polyline arc segment::
> Specify arc length dimension location or \[Mtext/Text/Angle/Partial/Leader\]:
## Function Description:
This command could measure arc or polyline arc segment. The dimension line could be orthogonal or radial. There is an arc symbol in front of dimension text.
**Relative Glossary:**
**Arc length dimension location:**
Specify dimension location and direction.
**Mtext:**
Edit dimension annotation text by In-place text editor. Users could input special characters and symbols by control code or Unicode character string.
If the unit conversion is off, users could input square bracket (\[\]) to display them.
The current annotation style determines the appearance of generated measured value.
**Text:**
Customize annotate text under command prompt.
The generated measured value will be displayed in angle bracket (\<\>). If the unit conversion is off, users could input square bracket (\[\]) to display them.
User could reset the dimension style in "Text" option of New, Modify, and Override in Dimension Style Manager Dialog box.
**Angle:**
Specify the angle of text.
**Partial:**
Shorten length of arc dimension.
**Leader:**
Add a leader. Only if the arc or arc segment is larger than 90 degrees, this option displays. The leader is created in radial direction and point to center of arc.
**No leader:**
Cancel "Leader" option before creating Leader.
If users want to remove leader, they should remove arc dimension and then create a new arc dimension without leader.
## Other versions with matching text
[GstarCAD 2016](../../../2016/Commands/D/DIMARC%20Command.md) · [GstarCAD 2017](../../../2017/Commands/D/DIMARC%20Command.md) · [GstarCAD 2018](Help%20System/GSTARCAD/2018/Commands/D/DIMARC%20Command.md) · [GstarCAD 2019](Help%20System/GSTARCAD/2019/Commands/D/DIMARC%20Command.md) · [GstarCAD 2020](Help%20System/GSTARCAD/2020/Commands/D/DIMARC%20Command.md)