nuke.curvelib.AnimCurve

class nuke.curvelib.AnimCurve

Bases: _curvelib.BaseCurve

An animated curve. The curve is described as a series of key values (instances of the AnimCurveKey class) which say what value it should have a particular time. For any time in between keys, the neighbouring key values are interpolated based on a curve type and interpolation settings specified at each key.

Each curve can only represent a single floating point value over time.

Methods

`addKey`	Add a new key to this curve.
`evaluate`	Calculate the value of the curve at a specific time, the pass that in to the expression for the curve.
`evaluateY`	Calculates the value of the curve at a specific time.
`getFlag`	Gets the specified flag.
`getKey`	Returns one of the keys on this curve.
`getNumberOfKeys`	Returns the number of keys along this curve.
`isDefault`	Check whether this curve has been modified away from its default values.
`removeAllKeys`	Removes all keys from this curve.
`removeKey`	Remove an existing key from this curve.
`reset`	Reset this object to its default values.
`setFlag`	Set or clear the specified flag.

Attributes

`constantValue`	The constant (not-animated) value for this curve, if any.
`curveTension`	The tension type for this curve.
`curveType`	The type of curve to treat this as.
`expressionString`	The expression string for the this curve, if any.
`kDefaultConstantValue`
`kDefaultCurveFlag`
`kDefaultCurveTension`
`kDefaultCurveType`
`name`	The name for this curve.
`useExpression`	Whether or not to use the expression string to calculate a value for this curve.

addKey(time, value) → None
addKey(keyObj) → None: Add a new key to this curve. You can pass in either a time and value pair (the value parameter is optional), or an AnimCurveKey object you’ve created yourself. In the former case, a new AnimCurveKey object will be created and added to the curve; in the latter case, the key you pass in will be added directly.

constantValue: The constant (not-animated) value for this curve, if any.

curveTension: The tension type for this curve.

curveType: The type of curve to treat this as.

evaluate(time) → float: Calculate the value of the curve at a specific time, the pass that in to the expression for the curve. The return value is the result of the expression.

evaluateY(time) → float: Calculates the value of the curve at a specific time.

expressionString: The expression string for the this curve, if any.

getFlag(flag) → bool: Gets the specified flag. The parameter should be one of the FlagType constants.

getKey(index) → AnimCurveKey: Returns one of the keys on this curve.

getNumberOfKeys() → int: Returns the number of keys along this curve.

isDefault() → bool: Check whether this curve has been modified away from its default values.

name: The name for this curve.

removeAllKeys() → None: Removes all keys from this curve.

removeKey(timeOrHash) → None: Remove an existing key from this curve. The key is identified by either the time it occurs at, or its hash (as returned by the key’s getHash() method.

reset() → None: Reset this object to its default values.

setFlag(flag, value) → None: Set or clear the specified flag. The flag parameter should be one of the FlagType constants and value should be True or False.

useExpression: Whether or not to use the expression string to calculate a value for this curve.