what are dead objects ?

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On 28/11/2012 at 04:53, xxxxxxxx wrote:

hi,

i am looping through some InExcludeData data and smashing everything with SMC CSTO. 
everything works as expected, but i am doing this the first time for a mograph cloner object and
this gives me some weird console output :

<c4d.SplineObject object called 'parametric/Spline' with ID 5101 at 0x000000001BB5A730>
<c4d.SplineObject object called 'basic/Spline' with ID 5101 at 0x000000001BB28CF0>
----> cloner
<dead c4d.SplineObject object at 0x000000001BB28EF0>
<dead c4d.SplineObject object at 0x000000001BB28F30>
<dead c4d.SplineObject object at 0x000000001BB28DB0>
<dead c4d.SplineObject object at 0x000000001BB28D70>
<dead c4d.SplineObject object at 0x000000001BB28CB0>
<dead c4d.SplineObject object at 0x000000001BB289F0>

what are dead splines ? i cannot insert them into the document for observation, as c4d says

ReferenceError: the object 'c4d.SplineObject' is not alive

the cloner contains only one parametric(circle) spline object, cloning it six times. CSTOing this cloner manually results in a null with six SplineObjects in it.

some code:

def getSplines(InExclude) :
    result = []
    for i in range (InExclude.GetObjectCount()) :
        obj = InExclude.ObjectFromIndex(doc, i)
        if (obj.CheckType(c4d.Ospline)) :
            result.append(obj)
            children = obj.GetChildren()
            if(children != None) :
                result += iterateObjectTree(children)
        else :
            smc = u.SendModelingCommand(command = c4d.MCOMMAND_CURRENTSTATETOOBJECT,
                                        list = [obj],
                                        doc = doc)[0]
                                
            if (smc.CheckType(c4d.Ospline)) :
                result.append(smc)
            children = smc.GetChildren()
            if(children != None) :
                result += iterateObjectTree(children)
    return result
    
def iterateObjectTree(objectList) :
    result = []
    for obj in objectList:
        if (obj.CheckType(c4d.Ospline)) :
                result.append(obj)
        children = obj.GetChildren()
        if(children != None) :
            result += iterateObjectTree(children)
    return result

what are dead objects ? is this caused by wrong smc settings ? i have tried different smc modes, but the results were the same.

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On 28/11/2012 at 07:06, xxxxxxxx wrote:

the cloner has nothing to do with it. the objects *die* as soon as you try to csto a hierarchy which has a null object at top level.

this will return 6 dead SplineObjects ( "Null" is passed to SMC) :

while this will return 6 perfectly healthy SplineObjects ("Flower" is passed to SMC) :

but the funny thing is, even if i convert the parametric spline inside the cloner into SplineObject,
SMC still returns "dead" objects.

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On 28/11/2012 at 09:17, xxxxxxxx wrote:

In your inexclude list try pick objects with doc as None
Sebastian once showed that (but can get "funny" in expressions)

obj = InExclude.ObjectFromIndex(None, i)

And as for "obj is not alive"
you may need to work on a clone instead in your CSTO.

Cheers
Lennart

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On 28/11/2012 at 11:42, xxxxxxxx wrote:

hey,

thanks for your reply. when i change

obj = InExclude.ObjectFromIndex(doc, i)

to

obj = InExclude.ObjectFromIndex(None, i).GetClone(c4d.COPYFLAGS_NO_MATERIALPREVIEW)

it doesn't change much. the smc returns one dead spline instead of the amount set in the cloner. is 
cloning meant in a different way ? i have to admit i always kind of ignored that topic "clone xyz, or it 
will blow up into your face", as it didn't really caused me any trouble in the past, even if the sdk said 
so

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On 28/11/2012 at 14:12, xxxxxxxx wrote:

Are you doing this in an expression rather than a command,
as you are using a InEx List?

Cheers
Lennart

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On 28/11/2012 at 14:16, xxxxxxxx wrote:

i am doing this from a python xpresso node.

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On 28/11/2012 at 14:35, xxxxxxxx wrote:

Then don't
It's living on the edge modifying the document at runtime.
Generally do this in a command (that you call from your xpresso node (havent tried))
or in a message body of an expression (so you can control the document while executing)

Cheers
Lennart

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On 28/11/2012 at 15:15, xxxxxxxx wrote:

hey,

thanks for your help. with "do this in a command" you suggest using a CommandData plugin ?

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On 28/11/2012 at 16:00, xxxxxxxx wrote:

A regular Command script could do, unless you want to call it from
something else. Then a registered Command Plugin would be better
as you can call it by it's Plugin ID. (Command scripts tend to change their
ID over time, strangely enough)

Cheers
Lennart

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On 29/11/2012 at 01:44, xxxxxxxx wrote:

hm,

doesn't change anything.

- script version
- more explicit usage of SMC CSTO
- did the clone object/document thing the sdk suggests for CSTO

something doesn't feel right, i am either making a fundamental mistake, or smc is bugged (again)
at that point. never had to do all this cloning stuff in the past. there is also the fact, that when you 
start cloning things before smc (the object, the document or both) the smc just returns one object.
or in other words - is just ignoring the cloner (although I explicitly set NOGENERATE to False in its
settings).

i am also pretty unsure about this documents.IsolateObjects() method thing. do i have to search 
my objects in the document by myself or is the passed object list now automatically referencing 
objects in the new document ?

import c4d
from c4d import utils as u
from c4d import documents
  
def main() :
    userData =  doc.SearchObject("UserData")
    objList = inExclude2List(userData[c4d.ID_USERDATA,1])
    splines = getSplines(objList)
    for n in splines:
        print n
  
def inExclude2List(InExclude) :
    result = []
    for i in range (InExclude.GetObjectCount()) :
        result.append(InExclude.ObjectFromIndex(doc, i))#.GetClone(c4d.COPYFLAGS_CACHE_BUILD))
    return result
  
def getSplines(objects) :
    result = []
    cloneDoc = documents.IsolateObjects(doc, objects)
    # doesn't change anything
    # objects = []
    # objects.append(cloneDoc.GetFirstObject())
  
    for obj in objects:
        if (obj.CheckType(c4d.Ospline)) :
            result.append(obj)
            children = obj.GetChildren()
            if(children != None) :
                result += iterateObjectTree(children)
        else :
            set = c4d.BaseContainer()
            set[c4d.MDATA_CURRENTSTATETOOBJECT_INHERITANCE] = True
            set[c4d.MDATA_CURRENTSTATETOOBJECT_KEEPANIMATION] = True
            set[c4d.MDATA_CURRENTSTATETOOBJECT_NOGENERATE] = False
            
            smc = u.SendModelingCommand(command = c4d.MCOMMAND_CURRENTSTATETOOBJECT,
                                        list = [obj],
                                        mode = c4d.MODELINGCOMMANDMODE_ALL,
                                        bc = set,
                                        doc = cloneDoc)[0] 
            print "smc", smc    
            if (smc.CheckType(c4d.Ospline)) :
                result.append(smc)
            children = smc.GetChildren()
            if(children != None) :
                result += iterateObjectTree(children)
    return result
    
def iterateObjectTree(objectList) :
    result = []
    for obj in objectList:
        if (obj.CheckType(c4d.Ospline)) :
                result.append(obj)
        children = obj.GetChildren()
        if(children != None) :
            result += iterateObjectTree(children)
    return result
    
  
if __name__=='__main__':
    main()

edit: just for the record - console output for this is :

smc <c4d.BaseObject object called 'Cloner/Null' with ID 5140 at 0x0000000006E180D0>
<dead c4d.SplineObject object at 0x000000000FD185F0>

edit no. 543957 :

also the whole - cloner objects aren't the cause for dead objects, but null objects thing applies also to this script version.

imghttp://oi47.tinypic.com/1zoetll.jpg

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On 29/11/2012 at 05:28, xxxxxxxx wrote:

This is a variable scope problem. If you print the splines at the end of getSplines(), before returning them, they're valid.
But once the list is returned to main(), splines are no more valid because they were stored in a local list and they don't belong to any document.

To resolve this, you should create a new document in your main() and then pass it to getSplines() in order to insert the resulting object for SMC CSTO.

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On 29/11/2012 at 07:38, xxxxxxxx wrote:

I'm not sure what you are getting at in the end
but the following works fine.

Cheers
Lennart

  
import c4d   
from c4d import gui, utils as u   
  
#CSTO   
def csto(obj) :   
    csto_bc     = c4d.BaseContainer()   
    csto_objs   = u.SendModelingCommand(   
        command = c4d.MCOMMAND_CURRENTSTATETOOBJECT,   
        list    = [obj],       
        mode    = c4d.MODELINGCOMMANDMODE_ALL,   
        bc      = csto_bc,   
        doc     = obj.GetDocument())   
    return csto_objs[0]   
  
def main() :   
    act_obj = doc.GetActiveObjects(False)[0] # First Active Object with an Userdata InEx List   
    if not act_obj: return True # Nothing Selected   
    try: inexlist = act_obj[c4d.ID_USERDATA,1]   
    except: return True # Emty or no list   
  
    doc.StartUndo()   
  
    for i in xrange(inexlist.GetObjectCount()) :   
        o = inexlist.ObjectFromIndex(None,i)   
        cobj = csto(o)   
        doc.AddUndo(c4d.UNDOTYPE_NEW,cobj)   
        doc.InsertObject(cobj,None,None)   
       
    c4d.EventAdd()   
    doc.EndUndo()   
  
if __name__=='__main__':   
    main()   

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On 29/11/2012 at 10:52, xxxxxxxx wrote:

Originally posted by xxxxxxxx

This is a variable scope problem. If you print the splines at the end of getSplines(), before returning them, they're valid.
But once the list is returned to main(), splines are no more valid because they were stored in a local list and they don't belong to any document.

To resolve this, you should create a new document in your main() and then pass it to getSplines() in order to insert the resulting object for SMC CSTO.

this solved my problem, thanks