# Adjust

The "Trim" function lengthens and shortens lines at boundary lines. Any number and combination of lines can be selected as boundary lines using the crosshair. The right mouse button ends the selection of boundary lines, and in the next step the lines to be adjusted can be specified individually or as a group. If the line should be shortened at the boundary line (trimmed), click on the part of the element to be adjusted that should be retained. Lines can also be adjusted between two boundary lines; adjustment or trimming is performed depending on the situation. "Trim" also searches for the "assumed contact edge" between the boundary line and the element to be adjusted, so that the two elements do not have to overlap.

<figure><img src="https://1294550180-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F0t0AJ2HDudwBgiGFR59Q%2Fuploads%2FdLfGTNClSXxODTOX9jgC%2Fgrafik.png?alt=media&#x26;token=4f4dacd0-d671-4206-98a3-cea8d0910445" alt=""><figcaption></figcaption></figure>

Red, dashed: boundary lines.

Blue: original line

Black: result

Square with cross: clicked location
