nuke.animation

nuke.animation(object, *commands) → None

Does operations on an animation curve.

The following commands are supported:

B{clear} deletes all the keys from the animation.
B{erase} index I{last_index} removes all keyframes between index and last_index
B{expression} I{newvalue} returns or sets the expression for the animation. The default is ‘curve’ or ‘y’ which returns the interpolation of the keys.
B{generate} start end increment field expression I{field expression …} generates an animation with start, end, and increment. Multiple field/expression pairs generate a keyframe. Possible field commands are:
- B{x} sets the frame number for the next keyframe
- B{y} sets the keyframe value
- B{dy} sets the left slope
- B{ldy} sets left and right slope to the same value
- B{la} and B{ra} are the length of the slope handle in x direction. A value of 1 generates a handle that is one third of the distance to the next keyframe.
B{index} x returns the index of the last key with x <= t, return -1 for none.
B{is_key} return non-zero if there is a key with x == t. The actual return value is the index+1.
B{move} field expression I{field expression} replaces all selected keys in an animation with new ones as explained above in B{generate}
B{name} returns a user-friendly name for this animation. This will eliminate any common prefix between this animation and all other selected ones, and also replaces mangled names returned by animations with nice ones.
B{size} returns the number of keys in the animation.
B{test} errors if no points in the animation are selected
B{y} index I{newvalue} gets or sets the value of an animation.
B{x} index I{newvalue} gets or sets the horizontal postion of a key. If the animation contains an expression or keyframes, the new value will be overridden.