View source for Cinema 4D - my Python scripts - copy object to other objects

==About==

{{DaughterPage|mother=[[Cinema 4D]]}}

This page contains code for a Python script I've written for Cinema 4D. To understand how it compiles see [[Cinema 4D - my Python scripts]].

==copy_object_to_other_objects.py==

<u>copy_object_to_other_objects.py</u>
<syntaxhighlight lang="python">
# Takes a set of objects and lets you specify the name of
# the object you wish to add as the parent or child of each
# of the other selected objects.

import c4d
import time
from c4d import gui

# Unique id numbers for each of the GUI elements:
LBL_USAGE = 1000
GROUP_TEXT = 10000
LBL_INFO1 = 10001
TXT_OBJ_TO_COPY = 10002
LBL_INFO2 = 10003
LBL_NUM_OBJS = 10004
RADIO_GROUP = 20000
RADIO_ADD_AS_PARENT = 20001
RADIO_ADD_AS_CHILD = 20002
GROUP_OPTIONS = 30000
BTN_OK = 30001
BTN_CANCEL = 30002

class OptionsDialog(gui.GeDialog):
  """ Dialog for adding a parent or child object to a set of selected objects.
  """
  def CreateLayout(self):
    self.SetTitle('Add Parent Or Child Object')
    self.AddMultiLineEditText(LBL_USAGE, c4d.BFH_SCALEFIT, inith=45, initw=500,
                              style=c4d.DR_MULTILINE_READONLY)
    self.SetString(LBL_USAGE,
        'USAGE: Of all objects selected, chose one to\n' +
        '    copy as a new child or parent of all others.')
    # Strings to add:
    self.GroupBegin(GROUP_TEXT, c4d.BFH_SCALEFIT, 2, 2)
    self.AddStaticText(LBL_INFO1, c4d.BFH_LEFT, name='Object name to copy:') 
    self.AddEditText(TXT_OBJ_TO_COPY, c4d.BFH_SCALEFIT)
    self.SetString(TXT_OBJ_TO_COPY, self.default_name)  # Default object to copy.
    self.AddStaticText(LBL_INFO2, c4d.BFH_LEFT, name='Number copies to make:') 
    self.AddStaticText(LBL_NUM_OBJS, c4d.BFH_SCALEFIT, name=self.num_objs)
    self.GroupEnd()
    self.AddSeparatorH(c4d.BFH_SCALE);
    # Radio Button Group - rename parent or children:
    self.AddRadioGroup(RADIO_GROUP, c4d.BFH_LEFT, 1, 1)
    self.AddChild(RADIO_GROUP, RADIO_ADD_AS_PARENT,
                  'Add as new parent')
    self.AddChild(RADIO_GROUP, RADIO_ADD_AS_CHILD,
                  'Add as new child')
    self.SetBool(RADIO_ADD_AS_PARENT, True)  # Set first radio button on.
    self.GroupEnd()
    self.AddSeparatorH(c4d.BFH_SCALE);
    # Buttons - an Ok and Cancel button:
    self.GroupBegin(GROUP_OPTIONS, c4d.BFH_CENTER, 2, 1)
    self.AddButton(BTN_OK, c4d.BFH_SCALE, name='Ok')
    self.AddButton(BTN_CANCEL, c4d.BFH_SCALE, name='Cancel')
    self.GroupEnd()
    self.ok = False
    return True
  
  # React to user's input:
  def Command(self, id, msg):
    if id==BTN_CANCEL:
      self.Close()
    elif id==BTN_OK:
      self.ok = True
      self.option_obj_name_to_copy = self.GetString(TXT_OBJ_TO_COPY)
      self.option_add_as_child = self.GetBool(RADIO_ADD_AS_CHILD)
      self.Close()
    return True
    

def main():
  selection = doc.GetActiveObjects(c4d.GETACTIVEOBJECTFLAGS_SELECTIONORDER)
  if len(selection) <= 1:
    gui.MessageDialog('Start by selecting the object to copy, plus all ' +
                      'the object to copy to.')
    return

  # Open non-modal options dialogue to let users copy objects.
  dlg = OptionsDialog()
  dlg.default_name = selection[0].GetName()
  dlg.num_objs = len(selection) - 1
  dlg.Open(c4d.DLG_TYPE_MODAL, defaultw=300, defaulth=50)
  if not dlg.ok:
    return

  obj_to_copy = None
  for j in range(0,len(selection)):
    if selection[j].GetName() == dlg.option_obj_name_to_copy:
      obj_to_copy = selection[j]
      selection.remove(obj_to_copy)
      break
  
  if obj_to_copy == None:
    gui.MessageDialog('Could not find an object called ' +
        dlg.option_obj_name_to_copy + ' in selected objects.')
    return
  
  doc.StartUndo()
  for i in range(0,len(selection)):
    obj = selection[i]
    new_obj = obj_to_copy.GetClone()
    if dlg.option_add_as_child:
      doc.InsertObject(new_obj, parent=obj)
      doc.AddUndo(c4d.UNDOTYPE_NEW, new_obj)  # Added after add.
    else:
      doc.InsertObject(new_obj, pred=obj)
      doc.AddUndo(c4d.UNDOTYPE_NEW, new_obj)  # Added after add.
      doc.AddUndo(c4d.UNDOTYPE_CHANGE, obj)
      obj.Remove()
      doc.InsertObject(obj,parent=new_obj)
  doc.EndUndo()
  c4d.EventAdd()  # Show updated changes.
  
  gui.MessageDialog(str(len(selection)) + ' objects were added')

if __name__=='__main__':
  main()
</syntaxhighlight>


==See Also==

* [[Cinema 4D - Python scripts]]


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[[Category:Programming]]