Restore old Pointselection

Helper

On 22/12/2015 at 02:45, xxxxxxxx wrote:

Hi, I want to store a Pointsselection and later restore that Selection on another Identical Object.
I tried this...but with no luck

points = obj.GetPointS()
count =  NewObj.GetPointCount()
newPoints = NewObj.GetPointS()
newPoints.DeselectAll()
  
for i in xrange(count) :
	if points.IsSelected(i) :
		newPoints.Select(i)

Helper

On 22/12/2015 at 03:02, xxxxxxxx wrote:

Hi Holgar,

You can simply use BaseSelect.CopyTo() to copy a selection to another. Note you have to send a MSG_UPDATE after changing the selection:

sel = obj.GetPointS()
otherSel = newObj.GetPointS()
sel.CopyTo(otherSel)
newObj.Message(c4d.MSG_UPDATE)

Helper

On 22/12/2015 at 03:49, xxxxxxxx wrote:

Thanks Yannick. But it does not work for me. What I do is I make CallCommand with Shrinkselection and than I want to restore the old selection. Its not working.

Helper

On 22/12/2015 at 03:52, xxxxxxxx wrote:

Could you post some code?

Helper

On 22/12/2015 at 04:16, xxxxxxxx wrote:

def main() :
  
    
    selobj=doc.GetSelection()
  
    obj=selobj[0]
    sel = obj.GetPointS()
    obj.Message(c4d.MSG_UPDATE)
  
    c4d.CallCommand(12559) # Shrink Selection
    newobj=obj.GetClone()
    newobj.InsertAfter(obj)
    
    
    otherSel = newobj.GetPointS()
    sel.CopyTo(otherSel)
    newobj.Message(c4d.MSG_UPDATE)
    obj.Remove()
  
    c4d.EventAdd()
  
  
if __name__=='__main__':
    main()

Helper

On 22/12/2015 at 05:26, xxxxxxxx wrote:

Just some question:

selobj=doc.GetSelection()  
Why dont you use doc.GetActiveObject() or doc.GetActiveObjects?  
You just wanna work with Objects, rigth?  



obj.Message(c4d.MSG_UPDATE)  
Why do you send this message befor the selection change?  
  
c4d.CallCommand(12559) # Shrink Selection  
Isnt it more comfortable to use   
c4d.utils.SendModelingCommand(command = c4d.MCOMMAND_SELECTSHRINK,  
                                list = [selobj],  
                                mode = c4d.MODELINGCOMMANDMODE_POINTSELECTION,  
                                bc = c4d.BaseContainer(),  
                                doc = doc)  
Ok, in this case selobj is the active object in any cases.  
  
And finally just to clearify:   
- you store the selection of an object  
- you shrink the selection  
- you create and insert a clone of the object with the shrinked selection  
- you put the unshrinked selection at the clone and remove the object  
Where is the difference before and after the script?

Helper

On 22/12/2015 at 06:19, xxxxxxxx wrote:

This is just an example copied from a script. I store the selection before I shrink the selection. So I would expect i can restore it later from the state before I shrink it. But I guess something is wrong with my logic.

Helper

On 22/12/2015 at 06:33, xxxxxxxx wrote:

Ok, I understand.

I think sel isnt an instance or clone of obj.GetPointS(), so you change sel with SELECTSHRINK, too.

import c4d  
from c4d import gui  
#Welcome to the world of Python  
  
def main() :  
  
  obj = doc.GetActiveObject()  
  if obj == None: return  
    
  sel = c4d.BaseSelect()  
  obj.GetPointS().CopyTo(sel)  
  
  c4d.utils.SendModelingCommand(command = c4d.MCOMMAND_SELECTSHRINK,  
                              list = [obj],  
                              mode = c4d.MODELINGCOMMANDMODE_POINTSELECTION,  
                              bc = c4d.BaseContainer(),  
                              doc = doc)  
                                
  newobj = obj.GetClone()  
  newobj.InsertAfter(obj)  
  newobj.SetRelPos(c4d.Vector(0,0,200))  
    
  other_sel = newobj.GetPointS()  
  sel.CopyTo(other_sel)  
  newobj.Message(c4d.MSG_UPDATE)  
  
  c4d.EventAdd()  
    
  
if __name__=='__main__':  
  main()

Helper

On 23/12/2015 at 00:30, xxxxxxxx wrote:

so How would I be able to restore my old selection than? Any Idea?

Edit: Sorry..just realized that your code is now working. I see. Thanks.