8

1134 Chapter 9: Sur face Modeling
Inter face
In addition to the CV rollout described here, the
Surface CV sub-object level also displays the
Soft
Selection rollout (page 1–1148)
.
CV rollo ut
Surface CV sub-object rollout
Selection group
Surface CV sub-object selec tion controls
Single CV—(The default.) When on, you can select
individual CVs by clicking, or groups of CVs by
dragging a region.
Row of CVs—When on, clicking a CV selects the
entire row the CV belongs to. Dragging selects all
rows in the region.
Co lumn of CVs—Whenon,clickingaCVselectsthe
entire column the CV belongs to. Dragging selects
all colum ns in the region.
Row and Column of CVs—When on, clicking a CV
selects b oth the row and column the C V belongs
to.Draggingselectsallrowsandcolumnsinthe
region.
All CVs—When on, clicking or dragging selects all
the C Vs in the surface.
Name—Showseither"NoCVsselected","Multiple
CVs selected", or "SurfaceName(uIndex,vIndex)",
where "SurfaceName" is the name of the CV’s
parent surface, and "uIndex,vIndex" is the CV’s
UV location on the surface. You can’t edit the
Name field to customize the names of CVs.
IfCVsarefused,theNamefieldshowsthename
of the first CV.
Weigh t—Adjusts the weight of the selected CVs.
Yo u c a n u s e a C V ’ s
weight to adjust the CV’s
effect on the surface. Increasing the weight pulls
the sur face toward the CV. Decreasing the weig ht
relaxes the surface away from the CV.
Increasing weight is a way to harden a surface: that
is, to sharpen its curvature at a particular location.
By default, the weig ht is 1.0 for the CVs of NURBS
objects that you create on the Create panel or the
NURBS sub-object creation rollouts. The weight
of CVs in geometry that you convert to NURBS
canvary,dependingontheobject’soriginalshape.
You can change the weight when multiple CVs are
selected. Using the Weight field or spinner w hi le
multiple CVs are selec ted assigns a ll of them the