snapKey

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Synopsis

snapKey( animatedObject , [animation=string], [attribute=string], [controlPoints=boolean], [float=floatrange], [hierarchy=string], [includeUpperBound=boolean], [index=uint], [mergeDuplicate=boolean], [shape=boolean], [time=timerange], [timeMultiple=float], [valueMultiple=float])

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

snapKey is undoable, NOT queryable, and NOT editable.

The animation curves comprising a keyset depend on the value of the "-animation" flag:

• keysOrObjects:
  1. Any active keys, when no target objects or -attribute flags appear on the command line, or
  2. All animation curves connected to all keyframable attributes of objects specified as the command line's targetList, when there are no active keys.
• keys: Only act on active keys or tangents. If there are no active keys or tangents, don't do anything.
• objects: Only act on specified objects. If there are no objects specified, don't do anything.

Note that the "-animation" flag can be used to override the curves uniquely identified by the multi-use "-attribute" flag, which takes an argument of the form attributeName, such as "translateX".

Keys on animation curves are identified by either their time values or their indices. Times and indices can be given individually or as part of a list or range (see Examples).

This command "snaps" all target key times and/or values so that they have times and/or values that are multiples of the specified flag arguments. If neither multiple is specified, default is time snapping with a multiple of 1.0. Note that this command will fail to move keys over other neighboring keys: a key's index will not change as a result of a snapKey operation.

TbaseKeySetCmd.h

Return value

Related

Flags

Long name (short name)	Argument types	Properties
animation(an)	string
Where this command should get the animation to act on. Valid values are "objects," "keys," and "keysOrObjects" Default: "keysOrObjects." (See Description for details.)
attribute(at)	string
List of attributes to select In query mode, this flag needs a value.
controlPoints(cp)	boolean
This flag explicitly specifies whether or not to include the control points of a shape (see "-s" flag) in the list of attributes. Default: false. (Not valid for "pasteKey" cmd.) In query mode, this flag needs a value.
float(f)	floatrange
value uniquely representing a non-time-based key (or key range) on a time-based animCurve. Valid floatRange include single values (-f 10) or a string with a lower and upper bound, separated by a colon (-f "10:20") In query mode, this flag needs a value.
hierarchy(hi)	string
Hierarchy expansion options. Valid values are "above," "below," "both," and "none." (Not valid for "pasteKey" cmd.) In query mode, this flag needs a value.
includeUpperBound(iub)	boolean
When the -t/time or -f/float flags represent a range of keys, this flag determines whether the keys at the upper bound of the range are included in the keyset. Default value: true. This flag is only valid when the argument to the -t/time flag is a time range with a lower and upper bound. (When used with the "pasteKey" command, this flag refers only to the time range of the target curve that is replaced, when using options such as "replace," "fitReplace," or "scaleReplace." This flag has no effect on the curve pasted from the clipboard.)
index(index)	uint
index of a key on an animCurve In query mode, this flag needs a value.
mergeDuplicate(md)	boolean
If this flag is present, keys with duplicated frame will be merged into 1. Default false
shape(s)	boolean
Consider attributes of shapes below transforms as well, except "controlPoints". Default: true. (Not valid for "pasteKey" cmd.) In query mode, this flag needs a value.
time(t)	timerange
time uniquely representing a key (or key range) on a time-based animCurve. See the code examples below on how to format for a single frame or frame ranges. In query mode, this flag needs a value.
timeMultiple(tm)	float
If this flag is present, key times will be snapped to a multiple of the specified float value.
valueMultiple(vm)	float
If this flag is present, key values will be snapped to a multiple of the specified float value.

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

# Keys on animation curves are identified by either
# their time values or their indices.  Times and indices can
# be given as a range or list of ranges.

# time=('10pal','10pal') means the key at frame 10 (PAL format).
# time=[('1.0sec','1.0sec'),('15ntsc','15ntsc'),(20,20)] means the keys at time 1.0 second, frame 15 (in NTSC format), and time 20 (in the currently defined global time unit).
# time=(10,20) means all keys in the range from 10 to 20, inclusive, in the current time unit.
# Omitting one end of a range means "go to infinity", as in the following examples:
# time=(10,None) means all keys from time 10 (in the current time unit) onwards.
# time=(10,) means the same as (10,10)
# time=(0,10) means all keys up to (and including) time 10 (in the current time unit).
# time=(None,None) is a short form to specify all keys.
# index=(0,0) means the first key of each animation curve. (Indices are 0-based.)
# index=[(2,2),(5,5),(7,7)] means the 3rd, 6th, and 8th keys.
# index=(1,5) means the 2nd, 3rd, 4th, 5th, and 6th keys of each animation curve.

# Two ways to snap all keys on nurbsSphere1 to integer values.
#
cmds.snapKey( 'nurbsSphere1', tm=1.0 )
cmds.snapKey( 'nurbsSphere1' )

# Snap active objects' keys between times 10 and 20 so that
# they have times that are multiples of 0.5.
#
cmds.snapKey( t=(10,20), tm=0.5 )

# Snap active objects' keys between times 10 and 20 so that
# they have times that are multiples of 0.5 and values that
# are multiples of 1.0.
#
cmds.snapKey( t=(10,20), tm=0.5, vm=1.0 )