8

822 Chapter 8: Modifiers
Box—
Displays a small at each knot.
Helper Si ze—Sets the size for helpers.
Constant Screen Si ze—Keeps the sizes of helpers
constant regardless of how much viewports are
zoom in or out.
Draw On Top—Displays the helpers on top of all
other objects in the s cene.
Note: To change the display of helpers after
creation, select each helper and change selections
on the Modify panel.
Spline Select Modifier
Select a shape. > Modify panel > Modifier List >
Object–Space Modifiers > Spline Select
Select a shape. > Modifiers menu > Selection M odifiers
> Spline Select
The Spline Select modifier passes a sub-object
selection of shapes up the stack to subsequent
modifiers. It provides much of the same set of
selection functions available in the
Edit Spline
modifier (page 1–671)
. You can select vertices,
segments, or splines, and you can change the
selection from sub-object level to object level.
This modifier is simi lar to the
Mesh S elect (page
1–710)
and Poly Select modifiers (page 1–752) ,
except for the type of sub-object components.
Procedure
To use the S pline S elect modif ier:
1.
Create a multi-spline shape.
2. Apply a Spline Select modifier.
By default, the Vertex sub-object level is act ive.
3. Ifyouwishtoworkatadifferentsub-object
level, use the modifier stack display to choose it.
4. In the viewp orts, select vertices, segments, or
splines.
Tip: You can transform the selection using
an
XForm modifier (page 1–942) or Linked
XForm modifier (page 1–703)
.
Interf ace
Modifier Stack
The sub-object level you choose for the spline
select modifier determines which rollout appears.
(There are no parameters at t he top, object level.)
Vertex—Creates a sub-object select ion of vertices.
Segment—Creates a sub-object selection of
segments.
Spline—Creates a sub-object select ion of splines.
For more information on the stack display, see
Modifier Stack (page 3–802) .
Selec t Vertex rollout
Get Segment Selection, Get Spline Selection—Select
vertices based on the last Segment or Spline
select ion. This selection is added to the current
selection. Available only when Vertex is not the
currentsub-objectlevel.