Extend/Trim

The Extend/Trim Tool can either extend or trim a selected element to its intersection with another element. The tool has two modes – Standard and Advanced. The Standard Extend/Trim mode is element based – select an element and move the mouse to the element you want to Extend/Trim to. The Advanced Extend Trim mode is intersection based – select an element and see all possible intersection points based on the current settings. This mode also allows for removing a portion of an element between two points.

Standard Extend/Trim

Select the Extend/Trim tool on the ribbon or press the X key.

The Junctions toggle allows the tool to work when elements won’t actually touch. The Trim Corners toggle turns to corner trim mode on or off.

To extend an element with one or more elements selected, mouse over another element you want to extend to. Next, move your mouse toward the element you want to extend. When the preview is what you want, click to accept the change. If you want to trim, select the elements and hover over the side you want to trim. click when the scissors appear to save the changes. You can also select multiple elements to trim all at once.

You can also use this tool to extend/trim corners. Window select the two elements. Move the cursor into the corner you want to remove. When the preview is what you want, click to accept the change.

Advanced Extend/Trim

To have more control over how the Extend/Trim tool works, click the Advanced Extend/Trim button. Once the button is pressed, the tool window will change, displaying many more options. To switch back to the standard mode, press the Standard Extend/Trim button.

Extend/Trim Element to Element

When the Extend Element to Element or Trim Element to Element checkbox is checked, intersection points will be created at the elements that need to be extend or trim respectively.

Extend/Trim Element to Element Ray

When the Extend Element to Element Ray or Trim Element to Element Ray checkbox is checked, intersection points will be created at the element rays that need to be extended or trimmed respectively.

Trimming Multi-Point Line Segments

When Segments Individually is selected, individual segments will be trimmed.

When Segments Between Intersections is selected, all the segments that are between the intersections will be trimmed.

Allow Inverting Element Direction

On multi-point elements, Allow Inverting Element Direction will create intersection points that can invert the start or end segments direction, essentially adding additional points.

Result Modification

When the advanced extend/trim mode is active, holding down the Ctrl key will swap which part of the element is being trimmed.