Part: "Explode compound" tool

src/Mod/Part/CMakeLists.txt

@@ -40,7 +40,9 @@ set(BOPTools_Scripts
 set(CompoundTools_Scripts
     CompoundTools/__init__.py
     CompoundTools/_CommandCompoundFilter.py
+    CompoundTools/_CommandExplodeCompound.py
     CompoundTools/CompoundFilter.py
+    CompoundTools/Explode.py
 )
 
 add_custom_target(PartScripts ALL SOURCES

src/Mod/Part/CompoundTools/CompoundFilter.py

@@ -40,9 +40,14 @@ DistConfusion = 1e-7
 ParaConfusion = 1e-8
 
 
-def makeCompoundFilter(name):
+def makeCompoundFilter(name, into_group = None):
     '''makeCompoundFilter(name): makes a CompoundFilter object.'''
-    obj = FreeCAD.ActiveDocument.addObject("Part::FeaturePython", name)
+    if into_group is None:
+        into_group = FreeCAD.ActiveDocument
+    if into_group.isDerivedFrom('App::Document'):
+        obj = into_group.addObject("Part::FeaturePython", name)
+    else:
+        obj = into_group.newObject("Part::FeaturePython", name)
     _CompoundFilter(obj)
     if obj.ViewObject:    
         _ViewProviderCompoundFilter(obj.ViewObject)

src/Mod/Part/CompoundTools/Explode.py

@@ -0,0 +1,25 @@
+from .CompoundFilter import makeCompoundFilter 
+
+def explodeCompound(compound_obj, b_group = None):
+    """explodeCompound(compound_obj, b_group = None): creates a bunch of compound filters, to extract every child of a compount into a separate object. 
+    group: if True, Group is always made. If False, group is never made. If None, group is made if there is more than one child.
+    returns: (group_object, list_of_child_objects)"""
+    sh = compound_obj.Shape
+    n = len(sh.childShapes(False,False))
+    if b_group is None:
+        b_group = n > 1
+    if b_group:
+        group = compound_obj.Document.addObject('App::DocumentObjectGroup','GrExplode_'+compound_obj.Name)
+        group.Label = 'Exploded {obj.Label}'.format(obj = compound_obj)        
+    else:
+        group = compound_obj.Document
+    features_created = []
+    for i in range(0, n):
+        cf = makeCompoundFilter('{obj.Name}_child{child_num}'.format(obj = compound_obj, child_num = i), group)
+        cf.Label = '{obj.Label}.{child_num}'.format(obj = compound_obj, child_num = i)
+        cf.Base = compound_obj
+        cf.FilterType = 'specific items'
+        cf.items = str(i)
+        cf.ViewObject.DontUnhideOnDelete = True
+        features_created.append(cf)
+    return (group, features_created)

src/Mod/Part/CompoundTools/_CommandExplodeCompound.py

@@ -0,0 +1,101 @@
+# ***************************************************************************
+# *                                                                         *
+# *   Copyright (c) 2016 - Victor Titov (DeepSOIC) <vv.titov@gmail.com>     *
+# *                                                                         *
+# *   This program is free software; you can redistribute it and/or modify  *
+# *   it under the terms of the GNU Lesser General Public License (LGPL)    *
+# *   as published by the Free Software Foundation; either version 2 of     *
+# *   the License, or (at your option) any later version.                   *
+# *   for detail see the LICENCE text file.                                 *
+# *                                                                         *
+# *   This program is distributed in the hope that it will be useful,       *
+# *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+# *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+# *   GNU Library General Public License for more details.                  *
+# *                                                                         *
+# *   You should have received a copy of the GNU Library General Public     *
+# *   License along with this program; if not, write to the Free Software   *
+# *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  *
+# *   USA                                                                   *
+# *                                                                         *
+# ***************************************************************************
+
+__title__ = "CompoundTools._CommandExplodeCompound"
+__author__ = "DeepSOIC"
+__url__ = "http://www.freecadweb.org"
+__doc__ = "ExplodeCompound: create a bunch of CompoundFilter objects to split a compound into pieces."
+
+from .Explode import explodeCompound
+
+import FreeCAD
+if FreeCAD.GuiUp:
+    import FreeCADGui
+    from PySide import QtGui
+    from PySide import QtCore
+
+
+# translation-related code
+    try:
+        _fromUtf8 = QtCore.QString.fromUtf8
+    except Exception:
+        def _fromUtf8(s):
+            return s
+    try:
+        _encoding = QtGui.QApplication.UnicodeUTF8
+        def _translate(context, text, disambig):
+            return QtGui.QApplication.translate(context, text, disambig, _encoding)
+    except AttributeError:
+        def _translate(context, text, disambig):
+            return QtGui.QApplication.translate(context, text, disambig)
+
+
+# command class
+class _CommandExplodeCompound:
+    "Command to explode a compound"
+    def GetResources(self):
+        return {'Pixmap': ":/icons/Part_ExplodeCompound.svg",
+                'MenuText': QtCore.QT_TRANSLATE_NOOP("Part_ExplodeCompound", "Explode compound"),
+                'Accel': "",
+                'ToolTip': QtCore.QT_TRANSLATE_NOOP("Part_ExplodeCompound", "Explode compound: split up a list of shapes into separate objects")}
+
+    def Activated(self):
+        if len(FreeCADGui.Selection.getSelection()) == 1:
+            cmdExplode()
+        else:
+            mb = QtGui.QMessageBox()
+            mb.setIcon(mb.Icon.Warning)
+            mb.setText(_translate("Part_ExplodeCompound", "Select a shape that is a compound, first!", None))
+            mb.setWindowTitle(_translate("Part_ExplodeCompound", "Bad selection", None))
+            mb.exec_()
+
+    def IsActive(self):
+        if FreeCAD.ActiveDocument:
+            return True
+        else:
+            return False
+
+
+if FreeCAD.GuiUp:
+    FreeCADGui.addCommand('Part_ExplodeCompound', _CommandExplodeCompound())
+
+
+
+
+def cmdExplode():
+    FreeCAD.ActiveDocument.openTransaction("Explode")
+    try:
+        sel = FreeCADGui.Selection.getSelectionEx()
+        if len(sel) != 1:
+            raise ValueError("Bad selection","More than one object selected. You have selected {num} objects.".format(num= len(sel)))
+        obj = sel[0].Object
+        FreeCADGui.addModule("CompoundTools.Explode")
+        FreeCADGui.doCommand("input_obj = App.ActiveDocument."+obj.Name)
+        FreeCADGui.doCommand("CompoundTools.Explode.explodeCompound(input_obj)")
+        FreeCADGui.doCommand("input_obj.ViewObject.hide()")
+    except Exception:
+        FreeCAD.ActiveDocument.abortTransaction()
+        raise
+        
+    FreeCAD.ActiveDocument.commitTransaction()
+    FreeCADGui.doCommand("App.ActiveDocument.recompute()")
+    

src/Mod/Part/InitGui.py

@@ -44,6 +44,7 @@ class PartWorkbench ( Workbench ):
 
         try:
             import CompoundTools._CommandCompoundFilter
+            import CompoundTools._CommandExplodeCompound
         except ImportError as err:
             FreeCAD.Console.PrintError("Features from CompoundTools package cannot be loaded. {err}\n".format(err= str(err)))