pymel.core.modeling.alignCurve

alignCurve(*args, **kwargs)

The curve align command is used to align curves in maya. The main alignment options are positional, tangent and curvature continuity. Curvature continuity implies tangent continuity. Positional continuity means the curves (move) or the ends of the curves (modify) are changed. Tangent continuity means one of the curves is modified to be tangent at the points where they meet. Curvature continuity means one of the curves is modified to be curvature continuous as well as tangent. The default behaviour, when no curves or flags are passed, is to only do positional and tangent continuity on the active list with the end of the first curve and the start of the other curve used for alignment.

Flags:

Long name (short name)		Argument Types	Properties
attach (at)		bool
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
curvatureContinuity (cc)		bool
	Curvature continuity is on if true and off otherwise. Default:false Advanced flags
curvatureScale1 (cs1)		float
	Curvature scale applied to curvature of first curve for curvature continuity. Default:0.0
curvatureScale2 (cs2)		float
	Curvature scale applied to curvature of second curve for curvature continuity. Default:0.0
joinParameter (jnp)		float
	Parameter on reference curve where modified curve is to be aligned to. Default:123456.0
keepMultipleKnots (kmk)		bool
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. Common flags
object (o)		bool
	Create the result, or just the dependency node
positionalContinuity (pc)		bool
	Positional continuity is on if true and off otherwise. Default:true
positionalContinuityType (pct)		int
	Positional continuity type legal values: 1 - move first curve, 2 - move second curve, 3 - move both curves, 4 - modify first curve, 5 - modify second curve, 6 - modify both curves Default:1
replaceOriginal (rpo)		bool
	Create in place(i.e., replace) Flag can have multiple arguments, passed either as a tuple or a list.
reverse1 (rv1)		bool
	If true, reverse the first input curve before doing align. Otherwise, do nothing to the first input curve before aligning. NOTE: setting this attribute to random values will cause unpredictable results and is not supported. Default:false
reverse2 (rv2)		bool
	If true, reverse the second input curve before doing align. Otherwise, do nothing to the second input curve before aligning. NOTE: setting this attribute to random values will cause unpredictable results and is not supported. Default:false
tangentContinuity (tc)		bool
	Tangent continuity is on if true and off otherwise. Default:true
tangentContinuityType (tct)		int
	Tangent continuity type legal values: 1 - do tangent continuity on first curve, 2 - do tangent continuity on second curve Default:1
tangentScale1 (ts1)		float
	Tangent scale applied to tangent of first curve for tangent continuity. Default:1.0
tangentScale2 (ts2)		float
	Tangent scale applied to tangent of second curve for tangent continuity. Default:1.0

Derived from mel command maya.cmds.alignCurve

Example:

import pymel.core as pm

# Do modify positional continuity on both curves with no history:
pm.alignCurve( ch=False, pc=True, pct=6 )

# Do positional and tangent continuity, with the second curve
# tangent modified (by default move position continuity is done
# on the first curve):
pm.alignCurve( tc=True, tct=2 )