Extend

Option

Description

Select boundary entities for extend

Choose one or more entities to use as boundaries. These are the entities to which subsequently picked entities are extended. 

ENTER to select all

Press Enter to choose all entities in the drawing as boundaries. There is no need to pick individual entities as boundaries, except in certain cases.

Select entity to extend

Chooses the entity to extend. When either end of an entity could be extended to a boundary, BricsCAD extends the end closest to your pick point.

Edge mode

Toggles edge mode; prompts you:

[Extend/No extend] <No extend> - enter an option:

• Extend - extends entities to real and implied boundaries in 3D space
• No Extend - extends entities only to real boundaries

Fence

Allows fence selection, an irregular selection window; prompts you:

1. First point of fence - pick the first point of the fence.
2. Next fence - pick the next point of the fence; press Enter to exit selection mode.

Crossing

Allows crossing rectangle selection; prompts you:

1. First corner of crossing window - specify the first corner
2. Second corner of crossing window - specify the second corner

The entities that cross the specified rectangle are extended.

Projection

Specifies the how the entity is projected to the boundary; prompts you:

Projection [No projection/xy plane of Ucs/current View] <UCS> - enter an option:

• No projection - extends only those entities that intersect real boundaries in 3D space
• xy plane of UCS - projects entities and boundaries to the x,y-plane of the current UCS, and then extends the projected entities that would intersect projected boundaries
• Current View - projects entities into the current view, and then extends them accordingly

Erase

Deletes selected entities; prompts you:

Select entities to delete - select one or more entities

Undo

Undoes the previous extend operation.

Shift-select to trim

Switches to trim mode: press and hold the Shift key to select the part of an entity to be trimmed at the intersection with the nearest boundary entities. See the the Trim command.