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You can find all NURB modeling tools in the "Tools"
menu.
- Arguments: None.
- Operation: The NURBCircle tool creates a full circle NURB curve
of radius 1 in the XY plane located at the origin.
- Note: You can use this circle to easily create a NURB-Torus by moving
the circle along X and then revolving it. The amount of movement
determines the radius of the Torus, whereas the radius of the circle
determines the thickness.
- Arguments: None.
- Operation: The NURBSphere tool creates a half circle NURB curve
and revolves it about the Y axis thus forming a sphere of radius 1.
- Note: The NURB curve is deleted afterwards.
- Arguments: None.
- Operation: The NURBSphere tool creates a Cobb-NURBSphere,
consisting of 6 NURBPatches.
- Note: The NURBPatches are of high order (5).
- Arguments: None
- Operation: Creates a piecewise linear NURB curve of rectangular
shape, that fits in the (u,v) parameter space of a NURB patch, for use
as trim curve.
- Note: If the current level is not inside a NURB patch a simple
rectangular curve will be created instead.
- Arguments: Number of control points
- Operation: Creates a closed B-Spline curve with numcontrolpoints+3
control points.
- Note: Numcontrolpoints must be atleast 3. The first three control
points of the new curve will be identical to the last three.
Additionally, the curve will be marked as closed, so that single point
edit actions know that they may need to move two points.
- Arguments: none
- Operation: Creates an ICurve custom object
with 4 control points.
- Note: See section
The ICurve Custom Object
for more information about this object.
- Arguments: The revolve tool takes a single NURB curve from
the selection.
- Operation: It creates a Revolve custom object, and moves
the selected curve to it.
- Note: See section
The Revolve Custom Object
for more information regarding the revolve object.
- Arguments: The revolve tool takes the selected NURB curves from
the selection.
- Operation: It creates an Extrude custom object, and moves
the selected curves to it.
- Note: See section
The Extrude Custom Object
for more information regarding the extrude object.
- Arguments: The sweep tool takes two NURB curves from
the selection.
- Operation: It creates a Sweep custom object, and moves
the selected curves to it.
- Note: See section
The Sweep Custom Object
for more information regarding the sweep object.
- Arguments: The skin tool takes all NURB curves from
the selection.
- Operation: It creates a Skin custom object, and moves
the selected curves to it.
- Note: See section
The Skin Custom Object
for more information regarding the skin object.
- Arguments: The revert tool takes all NURB curves from
the selection.
- Operation: The direction of the selected NURB curves will be
reversed.
- Note: The direction of a NURBCurve will be shown in the wireframe
drawing mode using a small arrow at the end of the curve.
- Arguments: The concat tool takes two NURB curves from
the selection.
- Operation: The selected NURB curves will be concatenated
and a new third curve will be created.
- Note: If one of the curves has weights, the resulting curve
will have weights too. If the knot type of the first curve
is custom, it will be converted to NURB, otherwise the knot type
of the new curve will be that of the first selected curve. The selected
NURB curves will not be deleted.
- Arguments: The split to curves tool takes a single NURB patch from
the selection.
- Operation: The selected NURB patch will be split into NURB curves,
along direction u or v.
- Note: The NURB patch is not deleted afterwards.
- Arguments: The build from curves tool takes a number of NURB curves from
the selection.
- Operation: The selected NURB curves will be parsed, all curves
that are of equal length or longer (reference is the first selected curve)
will be used to form a new NURB patch of the following dimensions:
Width: length of the first selected curve,
Height: number of used curves. Other parameters (Knot-Type_U, Knots_U
etc.) are taken from the first curve.
- Note: The NURB curves are not deleted afterwards.
- Arguments: The elevate tool takes a number of NURB curves from
the selection.
- Operation: The order of the selected NURB curves will be raised
by the specified value without changing the shape of the curve.
- Note: If the knot vector of the curve is not clamped, it
will be clamped automatically. The knot type of the curve will
be changed to custom.
- Arguments: The refine tool takes a number of NURB curves from
the selection.
- Operation: The knot vectors of the selected NURB curves will be
refined by inserting a knot in the middle of each inner knot interval
without changing the shape of the curve. The knot type of the curve will
be changed to custom.
- Arguments: The clamp tool takes a number of NURB curves from
the selection.
- Operation: The knot vectors of the selected NURB curves will be
changed using knot insertion so that the first and the last knot
have a multiplicity equal to the order of the curve,
without changing the shape of the curve. The curve will
interpolate the first and the last control point afterwards.
The knot type of the curve will be changed to custom.
- Arguments: The insert knot tool takes a number of NURB curves from
the selection.
- Operation: The specified knot will be inserted a specified number
of times into the knot vector of the selected curves.
The knot type of the curve will be changed to custom.
- Arguments: The collapse tool expects a selected NURB curve
and a number of selected (tagged) control points.
- Operation: The selected control points will be made a
single multiple point, all points will get the coordinate values
of the last tagged point.
- Arguments: The explode tool expects a selected NURB curve
and a number of selected (tagged) multiple points.
- Operation: The points forming the selected multiple points will
be made to simple points again and may be edited separately.
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