Go to: Synopsis. Return value. Flags. Python examples.
pointCurveConstraint( selectionItem ,
[caching=boolean], [constructionHistory=boolean],
[name=string], [nodeState=int], [object=boolean], [pointConstraintUVW=[float, float,
float]], [pointWeight=float], [position=[float, float, float]],
[replaceOriginal=boolean],
[weight=float])
Note: Strings representing object names and
arguments must be separated by commas. This is not depicted in the
synopsis.
pointCurveConstraint is undoable, queryable, and editable.
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 "curve1" will try to match the position of
the locator. The argument is a curve location
| string[] |
Object Name(s), node name. |
In query mode, return type is based on queried flag.
caching, constructionHistory, name, nodeState,
object, pointConstraintUVW, pointWeight, position, replaceOriginal, weight
| Long name (short name) |
Argument types |
Properties |
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 |
caching(cch) |
boolean |
|
|
Modifies the node caching mode. See the node documentation for
more information.
Note: For advanced users only. |
|
nodeState(nds) |
int |
|
|
Modifies the node state. See the node documentation for more
information.
Note: For advanced users only. |
|
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. |
|
weight(w) |
float |
|
|
weight of the lsq constraint. The larger the weight, the least
squares constraint is strictly met. |
|
| Common flags |
name(n) |
string |
|
|
Name the resulting object |
|
constructionHistory(ch) |
boolean |
|
|
Turn the construction history on or off |
|
object(o) |
boolean |
|
|
Create the result, or just the dependency node |
|
replaceOriginal(rpo) |
boolean |
|
|
Create "in place" (i.e., replace) |
|
| Flag can appear in Create mode of
command |
Flag can appear in Edit mode of command |
| Flag can appear in Query mode of command |
 Flag can have multiple arguments, passed
either as a tuple or a list. |
import maya.cmds as cmds
# Apply a constraint to manipulate the position corresponding to
# the 1st edit point on curve1.
cmds.pointCurveConstraint( 'curve1.ep[1]', ch=True )
# Apply a constraint to manipulate the end point on curve1.
cmds.pointCurveConstraint( 'curve1.un[1.0]', ch=True, w=1.0 )
# Apply a constraint around the midpoint in the parameter domain on curve1.
cmds.pointCurveConstraint( 'curve1.un[0.5]', ch=True, w=-1.0 )