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â– Extend Adjacent Faces. When you move, rotate, or scale an edge without
pressing Ctrl, the shared length of the edge and its vertices is maintained.
However, the planes of the adjacent faces adjacent might be changed.
â– Move Edge. When you move, rotate, or scale an edge and press and release
Ctrl once while dragging, the edge is modified without its vertices. The
surfaces of the adjacent faces are maintained, but the length of the modified
edge might change.
â– Allow Triangulation. When you move, rotate, or scale an edge and
press and release Ctrl twice while dragging, the edge and its vertices are
modified. (This behavior is the same as if you had not pressed Ctrl).
However, if the adjacent faces are no longer planar, they are triangulated
(divided into two or more planar triangular faces).
If you press and release Ctrl a third time, the modification returns to the first
option, as if you had not pressed Ctrl.
TIP Rather than pressing Ctrl to cycle through edge modification options, hover
over an edge grip to display the grip multi-functional menu.
Delete Edges
You can also delete edges that completely divide two coplanar faces using one
of the following methods:
â– Select the edge and press Delete.
â– Select the edge and enter the ERASE command.
430 | Chapter 8 Work with 3D Models
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