9

Surface Edge Curve 1177
SurfaceEdgeCurve
Selec t NURBS o b je ct. > M odify panel > Create Curves
rollout > Dependent Cur ves group box > Surf Edge
button
Select NURBS object. > Modify panel > NURBS toolbox >
Create Surface Edge Curve button
A surface edge curve is a dependent curve type that
lies on the boundary of the surface. It can be the
original boundary of the surface, or a trim edge.
Procedure
To create a s urface e dge curve:
1.
Turn on Surf Edge.
2. Asyoumovethemouseinthescene,NURBS
surface edges are highlighted in blue. Click the
edge where you want to create the curve.
Inter face
Sur face Edge Curve rollout (creation time)
Seed 1 a nd Seed 2 —The curve resides on the edge
closesttothetwose
ed values. Adjust the seed
values to change the edge on which the curve
resides.
Sur f ace Edge Curve rollout (modificatio n time)
Seed 1 a nd S eed 2—The curve resides on the edge
closest to the two seed values. Adjust the seed
valuestochangetheedgeonwhichthecurve
resides.
Replace Surface— This lets you replace the parent
surface. Click a button, then click a surface to
replace the original parent surface.
Cre at in g Su rface
Sub-Objects
Select NURBS object. > Modify panel > Create Surfaces
rollout
Select NURBS object. > NURBS toolbox
Keyboard > Ct rl +T to toggle NURBS toolbox display
(KeyboardShortcutOverrideTogglemustbeon.)
Surface sub-objects are either independent point
and CV surfaces (like the top-level point and
CV surfaces described in Point Surface and
CV Surface), or they are dependent surfaces.
Dependent surfaces are surface sub-objects w hose
geometry depends on other surfaces or curves
intheNURBSmodel. Whenyouchangethe
geometry of the original, parent surface or curve,
the dependent surface changes as well.
Youcreatesurfacesub-objectsusingtheCreate
Surfaces rollout on the Modify panel for a NURBS
surface, or using the NURBS toolbox (page
1–1083).