animation
Moves the current time to the previous key frame for the specified animated parameters.
oDouble = PrevKey( [InputObjs], [Time], [Tolerance], [Layer] ); |
Returns the frame number of the previous key frame as a Double. If there is no key then the following is returned: -1.#INF for C++, "-1.#INF" for VBScript and Number.NEGATIVE_INFINITY for JScript.
| Parameter | Type | Description | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| InputObjs | String | List of animatable
parameters (for example "cone*/kine.local.pos").
Default Value: Currently selected and marked parameters |
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| Time | Number | Move to the key before this frame.
Default Value: Current frame |
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| Tolerance | Double | Frame tolerance
Default Value: Nearest 0.5 frame (-1)
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| Layer | Integer | Animation layer
Default Value: Current animation layer (-1) |
' create a null with some animation
set o = getprim("null")
Translate o, -10, 5, 0, siRelative, siView, siObj, siXYZ
savekey o & "/kine.local.pos", 1
Translate o, 10, -5, 0, siRelative, siView, siObj, siXYZ
savekey o & "/kine.local.pos", 50
Translate o, 10, 5, 0, siRelative, siView, siObj, siXYZ
savekey o & "/kine.local.pos", 75
' Process all the keys prior to the current frame
LastFrame
PrevKeys ( o & "/kine.local.pos" )
sub PrevKeys (params)
frame = PrevKey( params )
do while frame <> "-1.#INF"
LogMessage "There is a key at frame " & frame
frame = PrevKey( params )
loop
end sub
'INFO : "There is a key at frame 75"
'INFO : "There is a key at frame 50"
'INFO : "There is a key at frame 1"
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