9

1126 Chapter 9: Surface Modeling
Column of Points—
When on, clicking a point
selects the entire column the point belongs to.
Draggingselectsallcolumnsintheregion.
If the point is on a curve, Column of Points selects
only a single point.
Row a nd Column of Points—When on, clicking a
point selects both the row and column the point
belongs to. Dragging selects all rows and columns
in the region.
All Points—When on, clicking or dragging selects
all the points in the curve or surface.
Tip: Rows and columns are easily visible when
theNURBSsurfaceisplanar,ornearlyso.When
the surface has a complicated curvature, rows
and columns can be more difficult to see. The
Row , Column, and Row/Column buttons can be
especially useful in this situation.
Name—Shows the name of the currently selected
point. It is disabled if you have selected multiple
points.
By default, the name is "Point" followed by a
sequence number. You can use this field to give the
point a name that you choose.
Hide—Click to hide the currently selected points.
Unhide A ll—Click to unhide all hidden point s.
Fuse—Fuses a point to another point. ( You can’t
fuse a CV to a point, or vice versa.) This is one way
to connect two curves or surfaces. It is also a way
to change the shape of curves and surfaces.
Fusing points does not combine the two point
sub-objects. They are connected but remain
distinct sub-objects that you can unfuse later.
Fused points behave as a single point until you
unfuse them.
Fused points are displaye d in a distinc t color. The
default is purple. (You can change this color using
the Colors panel (page 3–799) of the Customize
User Interface dialog (page 3–792).)
Unfuse—Unfuses the fu sed points.
Ex tend—Extends a point cur ve. Drag f rom the end
of a curve to add a new point and extend the curve.
Wa rn in g : When you add points with Extend, you lose
the animation controllers for all points on the curve or
surface.
Mak e Independent—
Disabled if the point is
independent. If the point is dependent, clicking
this button makes it independent.
Wa rn in g : When you make a point independent, you
lose the animation controllers for all objec ts that depend
on it in turn.
Remove Animation—
Removes animation
controllers from the selected points.
Delete group
The buttons in this group bo x delete one or more
points.
Point —Deletes a single point (on a curve) or a row
and column of points (on a surface).
Row—Deletes a row from a surface.
Co l.— Deletes a column from a surface.
Wa rn in g : When you delete points, you lose the
animation controllers for all points on the curve or
surface.
Refine group
The buttons in this box refine point curves or
surfaces by adding points to them.
Curve—Adds points to a point curve.
Sur f Row—Addsarowofpointstoapointsurface.
Sur f Col.—Addsacolumnofpointstoapoint
surface.