Selected Keys? Move Keys?

Helper

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On 26/02/2011 at 02:07, xxxxxxxx wrote:

Hi all

Finally escaped from the last job.

A couple of things

1
Confusion
Just to confirm - the original concept was for staggered keys on multiple objects
Don't get me wrong - not complaining - just need to be clear what I'm seeing

The code is there in the while loop looks like it iterates through all the tracks of a single selected object.
If I select more than one object - nothing happens? (no provision in script so far)

2
I'd assume (if you want to modify keys differently for different objects) it would be better to write a small function
and modify the Key value before running Key.SetTime(...etc
dependent on the number of selected tracks
Sadly I cant see a way to return the count of selected tracks (yes Scott I now see the route) - so I guess
the whole things needs to run in an outer loop - iterating through the selected objects?

Another issue - if you modify the offset inside the While track loop
ie after
key.SetTime..
with something as simple as offset = offset + 10
Assuming you have a POS ROT SCALE tracks as well
Selecting all tracks is fine
Selecting just one track ie POS - inserts two extra sets of keyframes
as the while loop count is based on the total number of tracks
Cant see a simple solution

3
can't find reference to
C4d.NBIT_TL1_SELECT in the SDK - I take it these refer to the 4 timelines
Where did you get that info pls?

def MoveSelectedKeys(op,offset,timeln = 1) :    # offset in frames
    import c4d
  
    if (not op) or (not offset) : return False
  
    if timeln == 1: timeln = c4d.NBIT_TL1_SELECT
    elif timeln == 2: timeln = c4d.NBIT_TL2_SELECT
    elif timeln == 3: timeln = c4d.NBIT_TL3_SELECT
    elif timeln == 4: timeln = c4d.NBIT_TL4_SELECT
    else:
        import math
        timeln = math.fmod(timeln,4)
        MoveSelectedKeys(op,offset,timeln)
  
    doc = op.GetDocument()
    doc.StartUndo()
  
    track = op.GetFirstCTrack()
    if not track: return False
  
    fps = float(doc.GetFps())
  
    while track:
        curve = track.GetCurve()
        cnt = curve.GetKeyCount()
        for i in xrange(cnt) :
            key = curve.GetKey(i)
            if key.GetNBit(int(timeln)) == True:
                tme = key.GetTime()
                doc.AddUndo(c4d.UNDOTYPE_CHANGE,op)
                key.SetTime(curve,c4d.BaseTime(offset/fps+tme.Get()))
        track = track.GetNext()
    doc.EndUndo()
    c4d.EventAdd(c4d.MSG_UPDATE)
  
    return True
  
  
import c4d
def main() :
    offset = 50 #change this value as needed
    MoveSelectedKeys(op,offset) 
  
if __name__=='__main__':
    main()

Helper

THE POST BELOW IS MORE THAN 5 YEARS OLD. RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED

On 26/02/2011 at 03:06, xxxxxxxx wrote:

1:
You can simply use the function in an iteration through the selected objects.

What means staggered ? Don't know the word ^^

2:
Why modifieng the
key value ? I thought it's about moving keys ?
And what do you want to achieve with offset = offset + 10

Don't select a track, select the keys.

3:
It's in the GetNBits() function. Search for it without the c4d. in front.

I'll can answer your questions better later when im at home in about 2 hours.
Till then,

cheers

Helper

THE POST BELOW IS MORE THAN 5 YEARS OLD. RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED

On 26/02/2011 at 04:32, xxxxxxxx wrote:

What means staggered ? Don't know the word ^^

All explained here
http://forums.cgsociety.org/showthread.php?f=182&t=959094
with sample file (first post)

file shows example of before and after stagger

hth

Helper

THE POST BELOW IS MORE THAN 5 YEARS OLD. RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED

On 26/02/2011 at 05:23, xxxxxxxx wrote:

Ah, you mean the 2nd Cube should start moving when the 1st one finished ?
That shouldn't be a problem.
I'll be back in a minute with a function doing this.

cheers

PS: Do still only the selected keys need to be moved ?

//So, this is a bit more complex than i thought.
But it works fine

import c4d  
from c4d import documents  
  
overlap = 20    ## Change this to the Frame you want to let the keys beeing overlapped  
  
def MoveSelectedKeys(op,offset,timeln = 1) :    # offset in frames  
  import c4d  
  
  if (not op) or (not offset) : return False  
  
  if timeln == 1: timeln = c4d.NBIT_TL1_SELECT  
  elif timeln == 2: timeln = c4d.NBIT_TL2_SELECT  
  elif timeln == 3: timeln = c4d.NBIT_TL3_SELECT  
  elif timeln == 4: timeln = c4d.NBIT_TL4_SELECT  
  else:  
      import math  
      timeln = math.fmod(timeln,4)  
      MoveSelectedKeys(op,offset,timeln)  
  
  doc = op.GetDocument()  
  
  track = op.GetFirstCTrack()  
  if not track: return False  
  
  fps = float(doc.GetFps())  
  
  while track:  
      curve = track.GetCurve()  
      cnt = curve.GetKeyCount()  
      for i in xrange(cnt) :  
          key = curve.GetKey(i)  
          if key.GetNBit(int(timeln)) == True:  
              tme = key.GetTime()  
              key.SetTime(curve,c4d.BaseTime(offset/fps+tme.Get()))  
      track = track.GetNext()  
  c4d.EventAdd(c4d.MSG_UPDATE)  
  
  return True  
  
def GetLastSelectedKey(track, timeln = 1) :  
  import c4d  
  
  if timeln == 1: timeln = c4d.NBIT_TL1_SELECT  
  elif timeln == 2: timeln = c4d.NBIT_TL2_SELECT  
  elif timeln == 3: timeln = c4d.NBIT_TL3_SELECT  
  elif timeln == 4: timeln = c4d.NBIT_TL4_SELECT  
  else:  
      import math  
      timeln = math.fmod(timeln,4)  
      MoveSelectedKeys(op,offset,timeln)  
  
  curve = track.GetCurve()  
  cnt = curve.GetKeyCount()  
  
  for i in xrange(cnt) :  
      key = curve.GetKey(cnt-i-1)  
      if key.GetNBit(int(timeln)) == True:  
          return key  
  
def GetHNext(op) :  
  if not op: return  
  if op.GetDown() : return op.GetDown()  
  while not op.GetNext() and op.GetUp() :  
      op = op.GetUp()  
  return op.GetNext()  
  
def GetActiveObjects(doc) :  
  import c4d  
  lst = list()  
  op = doc.GetFirstObject()  
  while op:  
      if op.GetBit(c4d.BIT_ACTIVE) == True: lst.append(op)  
      op = GetHNext(op)  
  return lst  
  
  
def main() :  
  doc = documents.GetActiveDocument()  
  doc.StartUndo()  
  
  lst = GetActiveObjects(doc)  
  op = lst[0]  
  if not op: return False  
  
  key = GetLastSelectedKey(op.GetFirstCTrack())  
  if not key: offset = 0  
  else: offset = key.GetTime().GetFrame(doc.GetFps())-overlap  
  
  
  for i in xrange(len(lst)) :  
      doc.AddUndo(c4d.UNDOTYPE_CHANGE,op)  
      MoveSelectedKeys(op,offset)  
      key = GetLastSelectedKey(op.GetFirstCTrack())  
      if not key: offset = 0  
      else: offset = key.GetTime().GetFrame(doc.GetFps())-overlap  
      print op.GetName()  
      op = lst[i+1]  
  doc.EndUndo()  
  
  
  
if __name__=='__main__':  
  main()

Here a tiny Screencast to show you how to use it:

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Helper

THE POST BELOW IS MORE THAN 5 YEARS OLD. RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED

On 26/02/2011 at 12:08, xxxxxxxx wrote:

Hey Nux95

This is just great

And there's so much useful stuff here for reference
It's really appreciated - many thanks

line 103
op=list[i+1]
is throwing an error
index out of range

I guess this is just incrementing one object too many? at the end of the selected objects

Not wanting to take anything away from what you've done here - far beyond the call of duty
I think it would be nice to have the 'processing' part of the script possibly
in a function

ie release a collection of key manipulating scripts - by just changing the function

stagger - by offset - as we have now
stagger - by total time - total time over which to stagger all frames
stagger exponentially large to small
stagger exponentially small to large
etc etc

cheers again

Helper

THE POST BELOW IS MORE THAN 5 YEARS OLD. RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED

On 26/02/2011 at 13:22, xxxxxxxx wrote:

Originally posted by xxxxxxxx

line 103
op=list[i+1]
is throwing an error
index out of range

Do you recieve that message every time ? It didn't appear when I was using the Script.

I guess this is just incrementing one object too many? at the end of the selected objects

Shouldnt. 'op' is already the object with index 0, and 'i' starts with '0', so the next object for 'op' in the first iteration should be 1 => 'i+1'
But .. Hm, very bizarre. I didn't recieve that error, but as I think about it, that error MUST occure at the end of the loop.
Try it like this and tell me if the problen still exists:

  
op = lst[i+1]   
if not op: break # Hopefully there is a 'break' expression for 'for'-loops. If not try something that stops the loop

stagger - by total time - total time over which to stagger all frames
stagger exponentially large to small
stagger exponentially small to large
etc etc

Why not writing a Plugin ?

cheers, nux

Helper

THE POST BELOW IS MORE THAN 5 YEARS OLD. RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED

On 27/02/2011 at 03:10, xxxxxxxx wrote:

Using

if i+1 < len(lst) :
	op = lst[i+1]

got rid of the index error

As far as writing a plugin. A bit beyond me at present, probably best to learn from your foundation work here Nux.

Helper

THE POST BELOW IS MORE THAN 5 YEARS OLD. RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED

On 27/02/2011 at 08:05, xxxxxxxx wrote:

Trying to move this on in a more modular way
ie have a function for each transformation on selected keys

just wondered if I was heading in the right direction???
(ignore print checkpoints just for testing)

Next objective to 'nudge' everything back
as 'everything' gets moved over by staggering process
ie first track shouldnt move - everything else - stagger

#####################################
Updated version in later post

Helper

THE POST BELOW IS MORE THAN 5 YEARS OLD. RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED

On 01/03/2011 at 00:42, xxxxxxxx wrote:

Making an effort to understand what I'm seeing

Line 14 function call within itself - seems incorrect?

MoveSelectedKeys(op,offset,timeln)

Helper

THE POST BELOW IS MORE THAN 5 YEARS OLD. RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED

On 01/03/2011 at 07:21, xxxxxxxx wrote:

I am sorry, I may can go to my pc this weekend, but not earlier.

Does the Console tell you this ? O.o

If A function calls itself, everything starts again. But you may have changed some values before. (Here the timeln variable)

Helper

THE POST BELOW IS MORE THAN 5 YEARS OLD. RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED

On 02/03/2011 at 01:03, xxxxxxxx wrote:

Can anyone tell me why this message
doesn't pop up if NO object is selected using the function from the code above?

lst = GetActiveObjects(doc)
   op = lst[0]
   if not op:
   gui.MessageDialog("No objects selected")
   return False #leave the script if not an object

Helper

THE POST BELOW IS MORE THAN 5 YEARS OLD. RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED

On 02/03/2011 at 02:37, xxxxxxxx wrote:

Dunnoo .. Gonna test this this weekend. Maybe it's because op = lst[0] ist not in the right column ?

  lst = GetActiveObjects(doc)
  op = lst[0] ## here
    if not op:
        gui.MessageDialog("No objects selected") 
        return False #leave the script if not an object

Helper

THE POST BELOW IS MORE THAN 5 YEARS OLD. RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED

On 02/03/2011 at 03:03, xxxxxxxx wrote:

Hi Nux

nope, not that - must be forum paste incorrect
indent is as your example

appreciate you can't test at moment

I think its to do with this function setting op to the first object in doc
if nothing selected
that way op is never NULL
#####################################
def GetActiveObjects(doc) :
   import c4d
   lst = list()
   op = doc.GetFirstObject()
   while op:
   if op.GetBit(c4d.BIT_ACTIVE) == True: lst.append(op)
   op = GetHNext(op)
   return lst
#####################################

Helper

THE POST BELOW IS MORE THAN 5 YEARS OLD. RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED

On 02/03/2011 at 03:22, xxxxxxxx wrote:

the list only gets appended if op is selected.

Helper

THE POST BELOW IS MORE THAN 5 YEARS OLD. RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED

On 03/03/2011 at 06:11, xxxxxxxx wrote:

And this is where I'm at so far

Ignore some Print items - just for console checks

Still trying to make it modular
ie have a function for each type of key transform - (just stagger in this one)
appreciate any advice on good/bad code form

added gui to take offset
count selected objects - need more than 2
and now first object doesnt get offset (its popped off array)

#####################################
def MoveSelectedKeys(op,offset,timeln = 1) :    # offset in frames
    import c4d
  
    if (not op) or (not offset) : return False
  
    if timeln == 1: timeln = c4d.NBIT_TL1_SELECT
    elif timeln == 2: timeln = c4d.NBIT_TL2_SELECT
    elif timeln == 3: timeln = c4d.NBIT_TL3_SELECT
    elif timeln == 4: timeln = c4d.NBIT_TL4_SELECT
    else:
        import math
        timeln = math.fmod(timeln,4)
  
    doc = op.GetDocument()
  
    track = op.GetFirstCTrack()
    if not track: return False
  
    fps = float(doc.GetFps())
  
    while track:
        curve = track.GetCurve()
        cnt = curve.GetKeyCount()
        for i in xrange(cnt) :
            key = curve.GetKey(i)
            if key.GetNBit(int(timeln)) == True:
                tme = key.GetTime()
                key.SetTime(curve,c4d.BaseTime(offset/fps+tme.Get()))
        track = track.GetNext()
    c4d.EventAdd(c4d.MSG_UPDATE)
  
    return True
#####################################
def GetLastSelectedKey(track, timeln = 1) :
    import c4d
  
    if timeln == 1: timeln = c4d.NBIT_TL1_SELECT
    elif timeln == 2: timeln = c4d.NBIT_TL2_SELECT
    elif timeln == 3: timeln = c4d.NBIT_TL3_SELECT
    elif timeln == 4: timeln = c4d.NBIT_TL4_SELECT
    else:
        import math
        timeln = math.fmod(timeln,4)
  
    curve = track.GetCurve()
    cnt = curve.GetKeyCount()
  
    for i in xrange(cnt) :
        key = curve.GetKey(cnt-i-1)
        if key.GetNBit(int(timeln)) == True:
            return key  
####################################MINE
def GetFirstSelectedKey(track, timeln = 1) :
    import c4d
  
  
    if timeln == 1: timeln = c4d.NBIT_TL1_SELECT
    elif timeln == 2: timeln = c4d.NBIT_TL2_SELECT
    elif timeln == 3: timeln = c4d.NBIT_TL3_SELECT
    elif timeln == 4: timeln = c4d.NBIT_TL4_SELECT
    else:
        import math
        timeln = math.fmod(timeln,4)
  
    curve = track.GetCurve()
    cnt = curve.GetKeyCount()
    key = curve.GetKey(0)
  
    if key.GetNBit(int(timeln)) == True:
        return key 
#####################################
def GetHNext(op) :
    if not op: return
    if op.GetDown() : return op.GetDown()
    while not op.GetNext() and op.GetUp() :
        op = op.GetUp()
    return op.GetNext()
#####################################
def GetActiveObjects(doc) :
    import c4d
    lst = list()
    op = doc.GetFirstObject()
    while op:
        if op.GetBit(c4d.BIT_ACTIVE) == True: lst.append(op)
        op = GetHNext(op)
    return lst
#####################################MINE
def Stagger(doc,op,lst,keylast,overlap) :
    import c4d
    print "Length of list before pop", len(lst) 
    lst.pop(0)  #remove the first object as its not moved
    op = lst[0] #get fist active object again, less original first object
    print "Length of list after pop", len(lst) 
  
 
    offset = keylast.GetTime().GetFrame(doc.GetFps())-overlap
    for i in xrange(len(lst)) : #increment through allthe objects selected
        doc.AddUndo(c4d.UNDOTYPE_CHANGE,op)
        MoveSelectedKeys(op,offset) #moves all the selected keys on a track
        keylast = GetLastSelectedKey(op.GetFirstCTrack())
  
  
      
        if not keylast: offset = 0
        # the original cal moved everything # else: offset = key.GetTime().GetFrame(doc.GetFps())-overlap
        else: 
            print "OS1", offset
            offset = keylast.GetTime().GetFrame(doc.GetFps())-overlap
            print "OS2", offset
        # object namecheck # print op.GetName()
        if  i+1 < len(lst) : # +1 stops index going out of range ie more objects than listed
            op = lst[i+1]# ok to get next object in list
  
    return 
#####################################
def main() :
    import c4d
    from c4d import documents
    from c4d import gui
    
    c4d.CallCommand(1024314); # clear the python console
 
    # get a value form the user
    guival = gui.InputDialog("Enter a value < your max keyspan","10")
    print "Dialog Value =",guival
    overlap = int(guival)   
    doc = documents.GetActiveDocument()
    doc.StartUndo()
  
    lst = GetActiveObjects(doc) #get selected objects
  
    print "List Length = ", len(lst) 
    if len(lst)<=1:
        c4d.gui.MessageDialog("You need to select at least two objects") 
        return False #leave if not enough objects selected
 
    op = lst[0] #get fist active object
  
  
    keyfirst = GetFirstSelectedKey(op.GetFirstCTrack())
    keylast = GetLastSelectedKey(op.GetFirstCTrack())
    
  
    keyfirstval = keyfirst.GetTime().GetFrame(doc.GetFps())
    keylastval = keylast.GetTime().GetFrame(doc.GetFps())
    keyspanval = keylastval - keyfirstval
   
    print "Selected Keyspan 1st track = ", keyspanval
    print "Keytime of start key = ", keyfirstval
    print "Keytime of end key = ", keylastval
    
 
   
    if not keylast: offset = 0
    ##### else do the stagger
    else: Stagger(doc,op,lst,keylast,overlap) 
     
    doc.EndUndo()
  
if __name__=='__main__':
    main()

Helper

THE POST BELOW IS MORE THAN 5 YEARS OLD. RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED

On 06/03/2011 at 08:05, xxxxxxxx wrote:

Any feedback on programing 'form' would be appreciated.

Think it would be useful to have a couple more transformations
Stagger2 - enter total stagger length - x frames (rather than current overlap in frames)
Accelerate - gradually space out over x frames
Decelerate - reverse above
Stack - thats essentially stagger with no overlap?

Helper

THE POST BELOW IS MORE THAN 5 YEARS OLD. RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED

On 06/03/2011 at 10:29, xxxxxxxx wrote:

Well, works fine. If you want potential increament for eg. you need to calculate something with the offset value.

Helper

THE POST BELOW IS MORE THAN 5 YEARS OLD. RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED

On 06/03/2011 at 11:09, xxxxxxxx wrote:

cheers Nux