# ANgular [GstarCAD 2027](Help%20System/GSTARCAD/2027/Index.md) → [What's new](Help%20System/GSTARCAD/2027/What's%20new/(What's%20new).md) ## Function Description: Constrains the angle between two lines or polyline segments. It is similar to an angular dimension. ## Command Access: Icon:  Menu Item: / Ribbon: Block Editor > Dimensional > ANgular Toolbar: / Command Line: BCPARAMETER > ANgular Command Alias: / ## Command Prompts: ``` Select first line or arc or[3Point(3P)]: ``` ``` Select second line: ``` ## Operation Steps: 1、As shown in the figure, select the two straight lines to add an angular constraint parameter. 2、The angle between the two straight lines will be constrained.  --- [Original help](https://www.gstarcad.net/help/GstarCAD_2027_en-US/detail/GstarCAD2027NEW/GCR_BCPARAMETER_AN.html) · © Gstarsoft Co., Ltd.