9

980 Chapter 9: Surface Modelin g
Editable Patch (Edge)
Selec t an editable patch > Modify panel > Exp and the
editable patch in the stack display > Edge sub-object level
Select an ed itable patch > Modify panel > Selection
rollout > Edge button
Selec t an editable patch > Right-click the patch > Tools 1
(upper-left) quadrant of the quad menu > Sub-objec ts >
Edge
An edge is the portion of a patch object between
two adjacent vert ices. When at the Editable Patch
(Edge) level, you can select single and multiple
segments and move, rotate, and sca le them u sing
standard methods. You can also hold down the
Shi f t key and drag an edge to create a new
patch. Holding dow n the
Shif t key during edge
extrusion creates a new element.
Procedure
To unlock interior edges:
When you move an outer or b oundary edge of
a patch, the adjacen t interior edges are normally
“locked” so that they move in parallel with the
boundary edge. This is often useful, because it
provides a uniform transition across the patch.
This default is known as A uto Interior.
•AtPatch level (page 1–981),youcanchange
the default on a patch-by-patch basis by
right-clicking a patch and choosing Manual
Interior from the Tools 1 (upper-left) quadrant
of the quad menu. Thereafter, when you move a
boundar y edge, interior edges are affected in a
nonlinear w ay. The interior edges are no longer
locked to the boundary edge.
Wa rning: If you return a patch to the default,
changes caused by Manual Interior are lost.
Interfa ce
Selec tion rollo ut
Select Open Edges—Selectsalledgesthatareused
by only one patch. You can use this to troubleshoot
a surface; open edges will be highli ghted.
For information on the other controls in this
rollout, see Selection Rollout (Editable Patch) (page
1–971).
Soft Selection rollout
See Soft Selection Rollout (page 1–963) for
information on the Soft Selection rollout settings.