Selected Keys? Move Keys?



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 RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED

    On 21/02/2011 at 02:04, xxxxxxxx wrote:

    Trying to find a way to identify selected timeline keys and move them

    ie

    3 items
    3 tracks
    select a range of  keys for all three items
    move keys on the tracks by differing amounts

    essentially running c4d.CallCommand(465001216) - the Move Scale Selected Keyframe command
    on each track
    with different MOVE values

    any help appreciated

    (thanks to Scott A so far)



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 RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED

    On 22/02/2011 at 23:23, xxxxxxxx wrote:

    Well, to move them should not be a problem. But to find the selected ones would be ..
    I couldn't find a function doing so .. :/

    //edit:
    I think I found it out, but I couldn't test it, yet. Try this:

      
    def GetSelectedKeys(curve) :  
      # Returns the selected Keys in a Curve and their count  
      cnt = curve.GetKeyCount()  
      keylist = list()  
      key_i = 0  
      for i in xrange(cnt) :  
          k = curve.GetKey(i)  
          if k.GetBit(BIT_ACTIVE) is True:  
               l[key_i] = k  
               key_i = key_i+1  
      return keylist, key_i  
     
    

    If the syntax for the list obejct is wrong, please correct me. I don't understand much of them yet. :/

    Cheers, nux



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 RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED

    On 23/02/2011 at 00:17, xxxxxxxx wrote:

    much appreciate the help



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 RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED

    On 23/02/2011 at 12:07, xxxxxxxx wrote:

    Nux.
    I have all the pieces to make this key mover script work. But half of it is in Coffee form and needs to be converted to python. And I'm horrible with python loops. So maybe you (or anyone else) can take all the parts and put them together in python?

    The goal is to move only selected keys in the timeline by an offset value.

    Coffee does not have NBit abilities. So AFAIK it can't find selected keys.
    So here is how to move all the keys on all of the tracks on an object using Coffee:

      
    //This script moves keys in a positive direction  
      
    var offset = 10;// change this value as desired  
      
    var trk = op->GetFirstCTrack();// Get the first track  
    if(!trk) // Error handling if object has no tracks  
     {  
     TextDialog("No tracks found on object!\n" + "Please create one", DLG_OK + DLG_ICONEXCLAMATION);  
     return;  
     }  
    while(trk)  
      {  
      var curve = trk->GetCurve(CCURVE_CURVE, FALSE); // R12 version  
      var i;  
      for(i=curve->GetKeyCount()-1; i>=0 ; --i) // Get all of the keys  
      {  
      var keys = curve->GetKey(i);  
      var keytime = keys->GetTime(); // Get's the key's baseTime value  
      var keyframe = keytime->GetFrame(30);//Get the frame the key is on based on a project setting of 30fps  
      var newframe = doc->GetTime();   
      newframe->SetFrame(keyframe + offset, 30); //Move the key by offset value from where it currently is   
      keys->SetTime(curve,newframe); // Move the key to the value of newframe  
      EventAdd(EVMSG_FCURVECHANGE);//update the F-Curve timeline changes  
      }  
     trk = trk->GetNext(); // Get the next track  
      }  
    

    Here is an example of getting only the selected keys on the first track using GetNBit() and python:

    #This code checks if any keys in the first track are selected  
      
    import c4d  
    from c4d import gui  
      
    def main() :  
      obj = doc.GetActiveObject()  
      trk = obj.GetFirstCTrack()  
      curve = trk.GetCurve()  
      cnt = curve.GetKeyCount()  
      for i in xrange(cnt) :  
       keys = curve.GetKey(i)  
       if keys.GetNBit(5) is 1: # 5 is the int id for NBIT_TL1_SELECT              
        print keys.GetValue() #prints the keys value      
        
      
    if __name__=='__main__':  
      main()  
    

    What needs to be done is the Coffee code example needs to be converted to Python. And then combined with the GetNBit() functionality so that it loops through all of the tracks on an object. And only moves the ones that are selected by the offset value.

    I'm just not good enough with python loops yet to do this myself.

    -ScottA



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

    On 23/02/2011 at 13:58, xxxxxxxx wrote:

    Yea, I'll try to write this in Python now. 🙂 I didn't know where to start, because I'm absolutely not familiar with Animation stuff and so on. .. @_@ But now I have a reference of the COFFEE Version.
    Seems like we're a good Team 😂

    I can only be on a mobile device for today, but I'll write the Raw Code on it ow and the search Bugs on  my computer tomorrow.
    I'll be back with new Infos then. :)

    Cheers, nux



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

    On 23/02/2011 at 14:33, xxxxxxxx wrote:

    Trying my best to follow this. Not sitting idly by.
    So far I can only get key values on one track.
    And the selection of key seems to depend on the object selection, rather than just a key selection
    Confused - but learning as I go. Thanks again to all



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

    On 23/02/2011 at 15:34, xxxxxxxx wrote:

    Originally posted by xxxxxxxx

    So far I can only get key values on one track.

    Yes. The python example I posted only loops though all the keys on a single track using a for loop.
    In order to get the keys on the other tracks. That for loop would need to be inside of a while loop to move on to the next track. which isn't that difficult to do.
    The hard part is that you have to get the last key first as you loop through all of this stuff. Because if you move the first keys in order. They will end up on top of eachother. And the loop will fail.
    Think of a train pulling it's cargo cars.

    The code in Coffee to do that looks like this: for(i=curve->GetKeyCount()-1; i>=0 ; --i)
    Which means. Start from the last key. Then work your way back every time the loop runs.
    I don't know how to write that kind of loop in python yet.

    Originally posted by xxxxxxxx

    And the selection of key seems to depend on the object selection, rather than just a key selection
    Confused - but learning as I go. Thanks again to all

    Sort of. It's a case of Parent ->Child relationships.
    The document is the parent of all objects. So to get at objects in python you write doc.GetActiveObject(). Where doc is the parent, and the selected object is the child.

    The same rule goes for things attached to objects.
    -Tracks are the children of objects.
    --Curves are the children of tracks
    ---Keys are the children of curves.

    So you almost never grab things directly in C4D. You get the parent. Then drill down into it's children until you reach the item you want to manipulate.
    Hope that makes sense.

    -ScottA

    Edit* - I just found this with Google. Turns out it's not as hard to do a revese loop in python as I thought. In fact it's pretty darned simple:

        cnt = curve.GetKeyCount()  
      for i in reversed(xrange(cnt)) :  
       keys = curve.GetKey(i)  
       if keys.GetNBit(5) is 1: # If a key is selected             
        print keys.GetValue() #print the key's value
    

    We'll get it working eventually deepshade. 🙂



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

    On 23/02/2011 at 21:09, xxxxxxxx wrote:

    Uhm. just by the way: Why do we need a reversed loop ?



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

    On 23/02/2011 at 21:55, xxxxxxxx wrote:

    Now, i got it all work. Only thing missing is the GetNBit, cause I have not enough Time now. I'll post the full code later on. 🙂
    But a look in the SDK makes me think that CKeys doesn't have the function GetNBit because it's a method of the GeListNode Class.. ?

    PS: Still don't understand why you used an Invers Iteration.

    //edit:

    So, here's the complete function: 🙂
    Even with Undo-Functionality ;-)

    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
    

    Is there a bit for keys in the "usual" timeline ? This one does only affect the selected keys in the Manager ..

    Cheers, nux



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

    On 24/02/2011 at 07:56, xxxxxxxx wrote:

    Good job nux.
    I like how you implemented the other timeline windows.

    I needed to use a reverse loop in Coffee because if I had for example: keys ten frames apart and an offset value of ten. The first key would get moved on top of the last key. Then when the loop came around a second time. The keys were all on the same frame and it couldn't figure out what to move.
    I didn't know of any other way to do it.

    Deepshade,
    Just in case you don't know this. What nux posted is a method.
    So if you want to use this in the python script manager. You paste it above the def main section.
    Then call to the method like this:

      
    def main() :  
      obj = doc.GetActiveObject()  
      offset = 15 #change this value as needed  
      MoveSelectedKeys(obj,offset,timeln = 1)   
      
    if __name__=='__main__':  
      main()
    

    -ScottA



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

    On 24/02/2011 at 08:34, xxxxxxxx wrote:

    OMG 🙂 - just dropped in for a look. Middle of some exhibition visual at present. Back this evening. Will have a good read later.

    cheers all



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

    On 24/02/2011 at 08:34, xxxxxxxx wrote:

    Let me add, that in the SkriptManager op is automatically the selected Object. :)
    And you don't need to overload the timeln since you don't want timeline 2,3 or 4.
    So this works too:

      
        
        
        import c4d  
        def main() :  
          offset = 15 #change this value as needed  
          MoveSelectedKeys(op,offset)   
          
        if __name__=='__main__':  
          main()
    


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

    On 25/02/2011 at 03:47, xxxxxxxx wrote:

    Hi All

    Sorry for lack of contribution - yesterdays work over ran
    try to get back to this as soon as job is out of the door



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

    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()
    


  • 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



  • 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



  • 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:

    "Stagger Keys" Cinema 4D Python Script



  • 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



  • 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



  • 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.


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