GetContour() refresh or uncache? How?

Helper

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On 03/02/2012 at 08:00, xxxxxxxx wrote:

Any news? Still waiting ...

Cheers,
maxx

Helper

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On 03/02/2012 at 08:44, xxxxxxxx wrote:

Hi maxx,

this seems to work well. However, it is not really satisfying using that hack..

http://www.file-upload.net/download-4083773/GetContour.zip.html

Cheers, Niklas!

Helper

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On 04/02/2012 at 09:09, xxxxxxxx wrote:

Originally posted by xxxxxxxx

Hi maxx,

this seems to work well. However, it is not really satisfying using that hack..

http://www.file-upload.net/download-4083773/GetContour.zip.html

Cheers, Niklas!

Hy nux, thanx for Code. But as you say, its not really satisfying. As tcastudios wrote, doing this will have severe performance drawbacks ...

Cheers,
André

Helper

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On 04/04/2012 at 05:41, xxxxxxxx wrote:

So we have reason to believe that there is no Cache to release for GetContour()
in a similar manner as one can do with GetVirtualObjects() by not returning
a HierarchyHelp ?

Cheers
Lennart

Helper

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On 04/04/2012 at 07:23, xxxxxxxx wrote:

Hi,

I contacted the developers on this issue.

Helper

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On 04/04/2012 at 08:47, xxxxxxxx wrote:

Great, thanks Yannick.

Cheers
Lennart

Helper

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On 10/04/2012 at 07:27, xxxxxxxx wrote:

Here's the information I got from the developers.

Splines created though GetContour() are cached. To make this frame dependent CheckDirty() can be overloaded to set the object dirty if a certain condition has changed:

class TestSplineData(plugins.ObjectData) :
    
    def __init__(self) :
        doc = documents.GetActiveDocument()
        self.lastFrame = doc.GetTime().GetFrame(doc.GetFps())
    
    def CheckDirty(self, op, doc) :
        print "CheckDirty()"
        
        frame = doc.GetTime().GetFrame(doc.GetFps())
        if frame != self.lastFrame:
            self.lastFrame = frame
            op.SetDirty(c4d.DIRTYFLAGS_DATA)
    
    def GetContour(self, op, doc, lod, bt) :
        print "GetContour()"
        
        return c4d.BaseObject(c4d.Ospline)

This should only be done if absolutely necessary though, otherwise the spline (and all depending objects) will be rebuilt for every single view-redraw.

Helper

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On 10/04/2012 at 08:13, xxxxxxxx wrote:

Thank you very much,Yannick! That is a big step in the right direction.
I will try to get all In/Excl objects within the CheckDirty() because that is
the "core" issue I have. The generator should update on the list's object's
dirty status.
I'll report how a get (or don't get! it working.

Cheers
Lennart

Helper

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On 10/04/2012 at 10:46, xxxxxxxx wrote:

YES YES! I'm so happy that this is solved, thanks a lot.
I've posted the important parts of one plugin I'm working with.
It needs to get dirty info from objects in a In/Excl List so I
simply could loop them and check the sum against the stored dirty sum.
Then to bypass the potential problems using GetActiveDocument() (for not active document)
I simply treat the current frame as a dirty (Long) value and include it in
the dirty sum!

Could not be happier!

Cheers
Lennart

"""   
splineGLIDE   
Copyright: tcastudios 2012   
Written for CINEMA 4D R13.+   
  
Modified Date: 2012xxxx   
"""   
  
import c4d   
import os   
import webbrowser as w   
from c4d import plugins, utils as u, bitmaps, Vector as v, documents   
from c4d.utils import SplineHelp, SplineLengthData   
  
PLUGIN_ID = 1028358 # PLUGIN ID registered by tcastudios. IF YOU MAKE ANY EDITS YOU MUST GET A NEW PLUGIN ID FROM plugincafe.com!!   
DIRTYSUM = 1027373 # Unique ID from plugincafe.com registered by tcastudios.com (PCLUSTER_MEMO)   
  
class sGLIDE(plugins.ObjectData) :   
     """splineGLIDE Generator"""   
        
     def Init(self, sglide) :   
          data = sglide.GetDataInstance()   
          data.SetReal(c4d.SG_MIX,1.0) # Mix Float   
          data.Set etc……   
          return True   
  
     def CheckDirty(self,op,doc) :   
          obc        = op.GetDataInstance()   
          dirtysumbc = obc.GetContainer(DIRTYSUM)   
          dlist      = obc.GetData(c4d.SG_SOURCES) #InExclude List objects to get dirty from   
          lcount     = dlist.GetObjectCount()   
             
          checksum = doc.GetTime().GetFrame(doc.GetFps()) # Use frame as a dirty integer (Long)   
          for d in xrange(lcount) :   
               checksum += dlist.ObjectFromIndex(None ,d ).GetDirty(c4d.DIRTY_DATA|c4d.DIRTY_MATRIX |c4d.DIRTY_CHILDREN|c4d.DIRTY_CACHE|c4d.DIRTY_SELECT)   
  
          if (checksum != dirtysumbc.GetLLong(0)) :   
               dirtysumbc.SetLLong(0,checksum)   
               obc.SetData(DIRTYSUM,dirtysumbc)        # Store new checksum into Container   
  
     def Construct(self,sglide) :   
          sbc        = sglide.GetDataInstance()   
          myfader    = sbc.GetReal(c4d.SG_MIX)   
          myetc      = sbc.Get etc etc   
          myspline   =   
          myspline   = c4d.BaseObject(c4d.Ospline)   
          # code that do things with spline from In/Excl List objects   
          return     myspline   
  
     def GetContour(self, sglide, doc, lod, bt) :   
          return self.Construct(sglide)   
  
if __name__ == "__main__":   
    path, file = os.path.split(__file__)   
    bmp = bitmaps.BaseBitmap()   
    bmp.InitWith(os.path.join(path, "res", "splineGLIDE.tif"))   
    splineGLIDELoaded = plugins.RegisterObjectPlugin(id=PLUGIN_ID,   
                    str="splineGLIDE",   
                                g=sGLIDE,   
                                description="splineGLIDE",   
                                icon=bmp,   
                                info=c4d.OBJECT_GENERATOR | c4d.OBJECT_ISSPLINE )   
                                   
    if splineGLIDELoaded:   
        print 'splineGLIDE v1 Loaded'

edit: Don't need to set checksum again for the op.

Helper

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On 06/09/2012 at 09:37, xxxxxxxx wrote:

I've been struggling with this in C++ just a few seconds ago. I'm so happy I remembered this thread.
I couldn't find this information in the C++ docs as well. Especially because CheckDirty() is listed under methods for Modifier objects, it didn't appear to me that I need to override this method.

-NIklas