# DGNCLIP Command [GstarCAD 2027](Help%20System/GSTARCAD/2027/Index.md) → [Commands](Help%20System/GSTARCAD/2027/Commands/(Commands).md) → [D](Help%20System/GSTARCAD/2027/Commands/D/(D).md) ## Function Description: This command is used to crop the display of a selected DGN underlay to a  specified boundary. The clipping boundary determines the portion of a DGN underlay outside the boundary that is hidden. The visibility of the clipping boundary is controlled by the DGNFRAME system variable. The boundary you specify must be in a plane parallel to the DGN underlay. ## Command Access: > **Icon:** / > **Menu:** / > **Ribbon:** / > **Toolbar:** / > **Command:** DGNCLIP > **Alias:** / ## Command Prompts: ``` Select DGN to clip: ``` ``` Enter DGN clipping option [ON/OFF/Delete/New boundary] <New boundary>: ``` ## ON Turns on clipping and displays the DGN underlay clipped to the previously defined boundary. ## OFF Turns off clipping and displays the entire DGN underlay. ## Delete Removes a predefined clipping boundary and displays the entire DGN underlay. ## New boundary Defines a rectangular or polygonal clipping boundary, or generates a polygonal clipping boundary from a polyline. --- **Related References：** - [Commands about Underlays (GstarCAD 2026)](../../../2026/Commands/00%20Command%20Groups/Commands%20about%20Underlays.md) **Related Tasks：** - [To Clip an Underlay (GstarCAD 2026)](../../../2026/Commands/01%20Procedures/To%20Clip%20an%20Underlay.md) --- [Original help](https://www.gstarcad.net/help/GstarCAD_2027_en-US/detail/commandReferences_D/DGNCLIP.html) · © Gstarsoft Co., Ltd.