animCurve

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This node represents an animation curve that can be used as input to any simple numeric attribute. Animation curves consist of keyframes and the interpolated spans between them; the "setKeyframe" command can be used to add new keyframes to a curve.

Information stored in this node includes:

• keyframe in- and out-tangent types
• in- and out-tangent positions
• tangent angle- and weight-lock status
• curve pre- and post-infinity types

To avoid implicit unit conversions, the keyframe times and values are attributes of the specific animation curve node required. The types available are based on the input and output attributes of the curve node.

This node is abstract

expression, animCurveUT, animCurveUU, animCurveUA, animCurveTT, animCurveTU, animCurveUL, resultCurve, resultCurveTimeToLinear, resultCurveTimeToTime, resultCurveTimeToUnitless, resultCurveTimeToAngular, animCurveTA, animCurveTL, animBlend, animBlendInOut

apply, curveColor, curveColorB, curveColorG, curveColorR, inStippleRange, keyBreakdown, keyTanInType, keyTanInX, keyTanInY, keyTanLocked, keyTanOutType, keyTanOutX, keyTanOutY, keyTickDrawSpecial, keyWeightLocked, outStippleRange, outStippleThreshold, postInfinity, preInfinity, rotationInterpolation, stipplePattern, stippleReverse, tangentType, useCurveColor, weightedTangents

Long name (short name)	Type	Default	Flags
apply (a)	function	NULL
Function attribute to get the value of the param curve at a point
tangentType (tan)	enum	4
Most common tangent type of keyframes in this curve. Used as a performance optimization during file store/retrieve. The following are legal values: 1=Fixed, 2=Linear, 3=Flat, 5=Step, 6=Slow, 7=Fast, 9=Spline, 10=Clamped, 16 = Plateau, 17 = StepNext, 18 = Auto
weightedTangents (wgt)	bool	true
Specifies whether or not the tangents on the animCurve are weighted
keyTanLocked (ktl)	bool	true
True makes the in- and out-tangents move together. False makes them move separately.
keyWeightLocked (kwl)	bool	true
True prevents changes to the tangent weight. False allows changes.
keyTanInX (kix)	double	0.0
The horizontal component of the keyframe in-tangent
keyTanInY (kiy)	double	0.0
The vertical component of the keyframe in-tangent
keyTanOutX (kox)	double	0.0
The horizontal component of the keyframe out-tangent
keyTanOutY (koy)	double	0.0
The vertical component of the keyframe out-tangent
keyTanInType (kit)	enum	4
The tangent type of the keyframe's in tangent. The following are legal values: 1=Fixed, 2=Linear, 3=Flat, 5=Step, 6=Slow, 7=Fast, 9=Spline, 10=Clamped, 16 = Plateau, 18 = Auto
keyTanOutType (kot)	enum	4
The tangent type of the keyframe's out tangent. The following are legal values: 1=Fixed, 2=Linear, 3=Flat, 5=Step, 6=Slow, 7=Fast, 9=Spline, 10=Clamped, 16 = Plateau, 17 = StepNext, 18 = Auto
keyBreakdown (kbd)	bool	false
True makes this key act as a breakdown. False makes this key a key.
keyTickDrawSpecial (kyts)	bool	false
True causes the tick mark representing a given key to be drawn specially in the time-slider using the user-definable special tick color. False causes the tick mark representing a given key to be drawn normally.
rotationInterpolation (roti)	enum	1
This attribute specifies how the curve data is interpolated if the curve is being utilised for rotation. The following are legal values: 1="None" for Unsynchronized Euler angled curves, where keyframes on sibling curves are independent. For non-rotational curves, this is the only possible setting. 2="Euler" for synchronized Euler-angled curves where sibling curve keyframes are coincident in time sibling curve, 3="Quaternion Tangent Dependent" for synchronized quaternion interpolation where sibling curve keyframes are coincident and quaternion interpolation is performed between keyframes, taking into account the tangents on individual keys. 4="Quaternion Slerp" applies quaternion spherical linear interpolation, ignoring any tangents 5="Quaternion Squad" applies a cubic interpolation in quaternion space, ignoring any tangents "None" (1) for non-rotational curves as well as for pre-4.0 rotational behaviour.
preInfinity (pre)	enum	0
Controls how the curve is evaluated before the first keyframe. The following are legal values: 0=Constant, 1=Linear, 3=Cycle, 4=Cycle with Offset, 5=Oscillate
postInfinity (pst)	enum	0
Controls how the curve is evaluated after the last keyframe. The following are legal values: 0=Constant, 1=Linear, 3=Cycle, 4=Cycle with Offset, 5=Oscillate
stipplePattern (sp)	enum	6
An Enum to set the stipple pattern for the sections of the anim curve that are specified by the stippleRegion attribute. The default is long dotted (--- --- --- ---).
outStippleThreshold (ot)	double	0.0
If the anim curve gets at or below this value, the outStippleRange will treat it as a region to stipple.
outStippleRange (osr)	doubleArray	empty
A double array containing pairs of ranges (if time, in seconds) of regions when the anim curve is below the stippleThreshold.
inStippleRange (isr)	doubleArray	empty
A double array that contains pairs of ranges to stipple.
stippleReverse (sr)	bool	false
When true, the stippled regions will become unstippled, and the solid regions will become stippled. This attribute will only have an effect if the inStippleRange attribute is connected.
useCurveColor (ucc)	bool	false
Specifies the display style for this curve. If false, Maya's default color scheme is used for drawing the curve. If true, the value of the curveColor attribute is used for drawing.
curveColor (cc)	float3
If the useCurveColor attribute is true, then the curveColor attribute provides the color used to draw curve segments when the curve is inactive (i.e. not selected). This setting is only visible in the graph editor.
curveColorR (ccr) float 0.0 Curve color red value (used for curve segments of a non-active curve).
curveColorG (ccg) float 0.0 Curve color green value (used for curve segments of a non-active curve).
curveColorB (ccb) float 0.0 Curve color blue value (used for curve segments of a non-active curve).