GetContour() refresh or uncache? How?
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On 21/10/2011 at 08:32, xxxxxxxx wrote:
How can I have an ObjectPlugin using GetContour()
to always refresh/update?
I have a simple spline generator that makes a spline
and set its points to the points of a point object.
(Similar to the TracerObject in a simple way)The issue is that when I move any of the points of
the polygon object, the "source", the generated spline does
not update what ever I try.
It only updates if I click something in its AM.Thing is, if I use GetVirtualObjects() instead, it updates
without problem. (Thou I then don't get a usable spline in return
as it's not seen as a spline object by ie Mograph stuff, Cloners, MoSpline etc)Below is the very basic what I do and what parts I use.
Where/how do I tell GetCountour not cache itself?Cheers
Lennartdef Init(self,op) : data = op.GetDataInstance() data.SetReal(c4d.ID_SOMETHING,n) return True #def GetVirtualObjects(self,op,hierarchyhelp) : def GetContour(self,op,doc,lod,bt) : bc = op.GetDataInstance() mysomething = bc.GetReal(c4d.ID_SOMETHING) pointobject = doc.SearchObject("EditedCube") pcount = pointobject.GetPointCount() spline = c4d.BaseObject(c4d.Ospline) spline.ResizeObject(pcount,0) spline.SetAllPoints(pointobject.GetAllPoints()) spline.Message(c4d.MSG_UPDATE) return spline plugins.RegisterObjectPlugin() -
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On 22/10/2011 at 08:11, xxxxxxxx wrote:
The only thing that comes into my mind is that the cache is optimized. Is it ?
Try using "self.SetOptimizeCache(False)" -
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On 22/10/2011 at 09:45, xxxxxxxx wrote:
Thanks, nux.
Yea I've tried all I can think of incl SetOptimizeCache() variants.
The original plugin uses a link field for the point object source
and then I can -delete- that object from the document and the
plugin still run as if it is "hard cached" in to the GetContour() function.As I've mentioned, the cache stuff is new territory for me but reading
the SDK and trying to figure out the concept of it for over a week takes it toll…I hope maybe someone from Maxon can nudge me towards a solution.
Atm, just to be able to use it I've added a tag to it that simply rewrites
its name to keep it updated, that of coarse makes it slow as molasses:)
as it generates many tens of thousands of segments.Cheers
Lennart -
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On 22/10/2011 at 12:53, xxxxxxxx wrote:
This might help:http://www.microbion.co.uk/graphics/c4d/cookbook-3.htm
It's written for C++.
But the AddExecution() function is listed as being supported in the Python SDK. So it should be applicable in Python too.-ScottA
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On 22/10/2011 at 13:42, xxxxxxxx wrote:
I've just got another idea. Afaik, 'BaseObject.SetDirty()' forces to object to recalculate the cache. (does it ?)
You could simply create an invisible Tag that calls 'op.GetOrigin().SetDirty()'. Anyway, haven't tried it yet, maybe this works.
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On 22/10/2011 at 15:50, xxxxxxxx wrote:
Ah, the Microbion page confirms that GetContour() is a bastard! Thanks Scott.
The solution there isn't exactly pretty and is close to what I've tried
(by "force updating") and doesn't fit the criteria really as it depends on time difference instead of source editing. That is, one can't model the resulting spline
by editing the source (without playing the scene). -And- the redrawing gets very slow..nux, I'll see what your idea might bring, but it sounds close to what I've tried
(force updating).Thanks
Lennart -
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On 22/10/2011 at 16:27, xxxxxxxx wrote:
Nope, its AM needs a "real" input to refresh the GetContour().
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On 22/10/2011 at 16:45, xxxxxxxx wrote:
What about triggering a hidden UserData field in your code to update it instead?
Here's the GetContour() method of the Py-DoubleCircle.pyp SDK example. But with some code added to it that will hide the first UD entry. So the user never sees you using it:
def GetContour(self, op, doc, lod, bt) : bc = op.GetDataInstance() bp = self.GenerateCircle(bc.GetReal(c4d.PYCIRCLEOBJECT_RAD)) if not bp: return None bb = bp.GetDataInstance() bb.SetLong(c4d.SPLINEOBJECT_INTERPOLATION, bc.GetLong(c4d.SPLINEOBJECT_INTERPOLATION)) bb.SetLong(c4d.SPLINEOBJECT_SUB, bc.GetLong(c4d.SPLINEOBJECT_SUB)) bb.SetReal(c4d.SPLINEOBJECT_ANGLE, bc.GetReal(c4d.SPLINEOBJECT_ANGLE)) bb.SetReal(c4d.SPLINEOBJECT_MAXIMUMLENGTH, bc.GetReal(c4d.SPLINEOBJECT_MAXIMUMLENGTH)) DoubleCircleData.OrientObject(bp, bc.GetLong(c4d.PRIM_PLANE), bc.GetBool(c4d.PRIM_REVERSE)) UD = op.GetUserDataContainer() #Get the the container for all UD entries for descId, container in UD: #Loop through all the id's in the container if descId[1].id == 1: #Gets the first UD entry container[c4d.DESC_HIDE] = True #Set it to hidden in memory only op.SetUserDataContainer(descId, container) #Execute that hidden setting from memory c4d.EventAdd() return bp-ScottA
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On 22/10/2011 at 17:29, xxxxxxxx wrote:
Thanks Scott you're most kind, but as mentioned
any external forced triggering bogs the setup down severly.
Using GetVirtualObjects() there is no lag at several thousands
of segments of the resulting spline.Cheers
Lennart -
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On 29/01/2012 at 15:42, xxxxxxxx wrote:
Any updates on this one?
Why is there no answer from Maxon?
Cheers,
André -
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On 03/02/2012 at 08:00, xxxxxxxx wrote:
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THE POST BELOW IS MORE THAN 5 YEARS OLD. RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED
On 03/02/2012 at 08:00, xxxxxxxx wrote:
Any news? Still waiting ...
Cheers,
maxx -
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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!
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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 -
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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 -
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On 04/04/2012 at 07:23, xxxxxxxx wrote:
Hi,
I contacted the developers on this issue.
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On 04/04/2012 at 08:47, xxxxxxxx wrote:
Great, thanks Yannick.
Cheers
Lennart -
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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.
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THE POST BELOW IS MORE THAN 5 YEARS OLD. RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED
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 -
THE POST BELOW IS MORE THAN 5 YEARS OLD. RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED
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.