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hardenPointCurve( curve , [caching=boolean], [constructionHistory=boolean], [multiplicity=int], [name=string], [nodeState=int], [object=boolean], [replaceOriginal=boolean])

Note: Strings representing object names and arguments must be separated by commas. This is not depicted in the synopsis.

hardenPointCurve is undoable, queryable, and editable.

The hardenPointCurve command changes the knots of a curve given a list of control point indices so that the knot corresponding to that control point gets the specified multiplicity. Multiplicity of -1 is the universal value used for multiplicity equal to the degree of the curve.

The CV whose multiplicity is being raised needs to have its neighbouring CVs of multiplicity 1. How many neighbours depends on the degree of the curve and the difference in CV multiplicities before and after this operation. For example, if you're changing a CV of multiplicity 1 into a CV of multiplicity 3, you will need the 4 neighbouring CVs (2 on each side) to be of multiplicity 1. The CVs that do not satisfy that requirement will be ignored.

Return value

string[]Object name and node name

In query mode, return type is based on queried flag.


caching, constructionHistory, multiplicity, name, nodeState, object, replaceOriginal
Long name (short name) Argument types Properties
multiplicity(m) int createqueryedit
the required multiplicity of the curve knot
Default: -1
Advanced flags
caching(cch) boolean createqueryedit
Modifies the node caching mode. See the node documentation for more information.
Note: For advanced users only.
nodeState(nds) int createqueryedit
Modifies the node state. See the node documentation for more information.
Note: For advanced users only.
Common flags
name(n) string create
Sets the name of the newly-created node. If it contains namespace path, the new node will be created under the specified namespace; if the namespace does not exist, it will be created.
constructionHistory(ch) boolean create
Turn the construction history on or off
object(o) boolean create
Create the result, or just the dependency node
replaceOriginal(rpo) boolean create
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.

Python examples

import maya.cmds as cmds

# Make the example curve.
cmds.curve( d=3, p=((-7.253894, 0, 10.835724), (-7.423939, 0, 6.977646), (-7.400778, 0, 2.798971), (-7.458196, 0, -1.524959), (-2.411453, 0, -1.07677), (1.44791, 0, -0.8977448), (5.526346, 0, -0.8610371), (5.740407, 0, 3.780402), (6.293634, 0, 7.571941), (5.957847, 0, 10.72273), (2.753946, 0, 10.894312), (-0.6375988, 0, 11.062571), (-5.889847, 0, 10.940658)), k=(0, 0, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 10, 10) )

# Raise the ones that you want to have "sharp" corners
cmds.hardenPointCurve( 'curve1.cv[3]', 'curve1.cv[6]', 'curve1.cv[9]', ch=True, rpo=True, m=-1 )

# Same result, as the in-between CVs are ignored:
cmds.hardenPointCurve( 'curve1.cv[0:12]', ch=1, rpo=1, m=-1 )