pymel.core.modeling.pointCurveConstraint

pointCurveConstraint(*args, **kwargs)

The command enables direct manipulation of a NURBS curve. It does so by apply a position constraint at the specified parameter location on the NURBS curve. If construction history for the cmd is enabled, a locator is created to enable subsequent interactive manipulation of the curve. The locator position may be key framed or transformed and the curve1will try to match the position of the locator. The argument is a curve location

Flags:

Long name (short name)		Argument Types	Properties
caching (cch)		bool
	Modifies the node caching mode. See the node documentation for more information. Note:For advanced users only.
constructionHistory (ch)		bool
	Turn the construction history on or off
name (n)		unicode
	Name the resulting object
nodeState (nds)		int
	Modifies the node state. See the node documentation for more information. Note:For advanced users only.
object (o)		bool
	Create the result, or just the dependency node
pointConstraintUVW (puv)		float, float, float
	Point constraint parameter space location on input NURBS Object
pointWeight (pw)		float
	Point constraint weight. Determines how strong an influence the constraint has on the input NURBS object. Default:1.0 Advanced flags
position (p)		float, float, float
	The new desired position in space for the nurbs object at the specified parameter space component. If not specified, the position is taken to be the one evaluated at the parameter space component on the nurbs object.
replaceOriginal (rpo)		bool
	Create in place(i.e., replace) Flag can have multiple arguments, passed either as a tuple or a list.
weight (w)		float
	weight of the lsq constraint. The larger the weight, the least squares constraint is strictly met. Common flags

Derived from mel command maya.cmds.pointCurveConstraint

Example:

import pymel.core as pm

# Apply a constraint to manipulate the  position corresponding to
# the 1st edit point on curve1.
pm.pointCurveConstraint( 'curve1.ep[1]', ch=True )

# Apply a constraint to manipulate the end point on curve1.
pm.pointCurveConstraint( 'curve1.un[1.0]', ch=True, w=1.0 )

# Apply a constraint around the midpoint in the parameter domain on curve1.
pm.pointCurveConstraint( 'curve1.un[0.5]', ch=True, w=-1.0 )