8

Vector Projected Curve 1173
2.
Click the curve, then the surface where you
want the vector projection curve to lie.
The initial vector direction is in the view
direction. That is, the vector points away from
you as you look at the viewport. If the curve can
be projected onto the surface in this direct ion,
the projection curve is created. The original,
parentcurvecango"offtheedgeofthesurface."
The projection curve is created only where the
projection and the surface intersect.
Inter face
In v iewports a gizmo (yellow by default) indicates
the project ion a xis. Transforming the gizmo
changes the projection onto the surface. R otating
thegizmoisthemostusefultransform.Youcan
use rotation to adjust the distortion caused by
projection.
Vector Projected Curve rollout (creat ion time)
Trim Controls group
Trim—When on, trims the surface against the
curve. When off, the surface isn’t t rimmed.
If it’s impossible to trim w ith this curve, the surface
is displayed in the error color (orange by default).
Forexample,thecurveisunusablefortrimmingif
it neither crosses the edge of the surface nor forms
aclosedloop.
Flip Trim—When on, trims the surface in the
opposite direction.
U S eed and V S eed—Change the UV location of
theseedvalueonthesurface.Ifthereisachoice
of projections, the projection closest to the seed
point is the one used to create the curve.
Vector Projected Curve rollout (modification
time)
Trim Controls group
Trim—When on, trims the surface against the
curve. When off, the surface isn’t trimmed.
If it’s impossible to trim with this curve, the surface
is displayed in the error color (orange by default).
For example, the curve is unusable for trimming if
it neither crosses the edge of the surface nor forms
aclosedloop.
Flip Trim—When on, tr i ms the surface in the
opposite direction.
U S eed and V S eed—Change the UV location of
theseedvalueonthesurface.Ifthereisachoice
of projections, the projection closest to the seed
point is the one used to create the curve.
Replace Cur ve and Replace Surf ace—Let you replace
the parent sub-objects. Click a button, then click
a curve or surface to replace the original parent
object.