Macro Overlap/de

Boolsche Überlappung erstellt eine Form, die den Raum bedeckt, der von mindestens 'OverlapIndex' Formen eingenommen wird. 'OverlapIndex' ist eine Eigenschaft, die geändert werden kann. Der Wert 1 liefert ein Ergebnis, das Part Vereinigung entspricht. Ein Wert, der der Anzahl der Formen entspricht, macht das Werkzeug gleichwertig mit Part Schnitt. Der Standardwert ist 2, was bedeutet, dass das Ergebnis den Raum ausfüllt, in dem es zu Überlappungen kommt.

Erfordert FreeCAD v0.17+ mit OCC mindestens 6.9.0 (getestet mit 7.0.0).

Installation

MacroOverlap.py herunterladen und im Makroverzeichnis speichern:

https://github.com/DeepSOIC/FreeCAD-Macros/raw/master/Overlap/MacroOverlap.py

Anwendung

1. Drei* oder mehr Formen auswählen, um die Überlappung zwischen ihnen zu berechnen. Auch eine einzelne Verbindung kann ausgewählt werden, die die Argumentformen enthält.
2. Im FreeCAD-Menü: Makro → Makros... → Doppelklick auf MacroOverlap.py . Ein neues Objekt wird erstellt.
3. Das neue Objekt auswählen und gegebenenfalls die Eigenschaft 'Overlap Index' im Eigenschaften-Ansicht (Registerkarte Daten) ändern.

* Zwei Formen reichen auch aus, aber die Wirkung des Werkzeugs entspricht dann entweder Part Schnitt oder Part Vereinigung, daher wird empfohlen, stattdessen Part-Werkzeuge zu verwenden.

Skript

Werkzeugleisten-Symbol

MacroOverlap.py

#***************************************************************************
#*                                                                         *
#*   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__ = "Macro Overlap"
__Author__ = "DeepSOIC"
__Version__ = "0.2"
__Date__    = "31/08/2018"

__Comment__ = "Extension of Part Common boolean operation"
__Web__ = "https://forum.freecad.org/viewtopic.php?f=8&t=17755"
__Wiki__ = "https://wiki.freecad.org/index.php?title=Macro_Boolean_Overlap"
__Status__ = "experimental"
__Requires__ = "freecad 0.17.8053 with OCC 6.9.0+"
__Communication__ = "https://wiki.freecad.org/index.php?title=User:DeepSOIC" 
__Help__ = '''
Macro Overlap.
Requires FreeCAD v0.17.8053+ and OCC 6.9.0+

Instructions:
Select three or more shapes to compute Overlap between. A single compound will do, too.
Then, run this macro. Parametric Overlap object is created.
'''

if __name__ == "__main__": #being run as a macro
    import MacroOverlap
    MacroOverlap.run()

import FreeCAD as App
if App.GuiUp:
    import FreeCADGui as Gui
import Part

def makeOverlapFeature():
    '''makeOverlapFeature(): makes a Overlap parametric feature object. Returns the new object.'''
    selfobj = App.ActiveDocument.addObject("Part::FeaturePython","Overlap")
    Overlap(selfobj)
    ViewProviderOverlap(selfobj.ViewObject)
    return selfobj

class Overlap:
    "The Overlap feature object"
    def __init__(self,selfobj):
        selfobj.addProperty("App::PropertyLinkList","Objects","Overlap","Input shape")
        selfobj.addProperty("App::PropertyInteger", "OverlapIndex", "Overlap", "minimum overlap order to output")
        selfobj.OverlapIndex = 2
        selfobj.Proxy = self

    def execute(self,selfobj):
        import BOPTools
        import BOPTools.Utils as Utils
        from BOPTools.GeneralFuseResult import GeneralFuseResult
        
        list_of_shapes = [obj.Shape for obj in selfobj.Objects]
        if len(list_of_shapes) == 1 and list_of_shapes[0].ShapeType == "Compound":
            list_of_shapes = list_of_shapes[0].childShapes()

        list_of_shapes = Utils.upgradeToAggregateIfNeeded(list_of_shapes)
        pieces, map = list_of_shapes[0].generalFuse(list_of_shapes[1:])
        gr = GeneralFuseResult(list_of_shapes, (pieces,map))
        gr.explodeCompounds()
        gr.splitAggregates()
        pieces_to_keep = []
        for piece in gr.pieces:
            if len(gr.sourcesOfPiece(piece)) >= selfobj.OverlapIndex:
                pieces_to_keep.append(piece)
        selfobj.Shape = BOPTools.ShapeMerge.mergeShapes(pieces_to_keep)

class ViewProviderOverlap:
    def __init__(self,vobj):
        vobj.Proxy = self
       
    def getIcon(self):
        return ":/icons/Part_Overlap.svg"

    def attach(self, vobj):
        self.ViewObject = vobj
        self.Object = vobj.Object
  
    def setEdit(self,vobj,mode):
        return False
    
    def unsetEdit(self,vobj,mode):
        return

    def __getstate__(self):
        return None

    def __setstate__(self,state):
        return None

    def claimChildren(self):
        return self.Object.Objects
        
    def onDelete(self, feature, subelements): # subelements is a tuple of strings
        try:
            for f in self.Object.Objects:
                f.ViewObject.show()
        except Exception as err:
            App.Console.PrintError("Error in onDelete: " + err.message)
        return True

class CommandMacroOverlap:
    "Command to create Overlap feature"
    def GetResources(self):
        return {'Pixmap'  : ":/icons/Part_Overlap.svg",
                'MenuText': "Overlap",
                'Accel': "",
                'ToolTip': "Macro_Overlap: boolean overlap. Collects space filled by at least 2 shapes."}

    def Activated(self):
        run()
    def IsActive(self):
        if App.ActiveDocument:
            return True
        else:
            return False

if App.GuiUp and __name__ != "__main__":
    Gui.addCommand("Macro_Overlap", CommandMacroOverlap())

def run():
    sel = Gui.Selection.getSelectionEx()
    try:
        if len(sel) < 1:
            raise Exception("Select two shapes to compute Overlap between, first! Then run this macro.")
        try:
            App.ActiveDocument.openTransaction("Macro Overlap")
            selfobj = makeOverlapFeature()
            selfobj.Objects = [it.Object for it in sel]
            for f in selfobj.Objects:
                f.ViewObject.hide()
            
            selfobj.Proxy.execute(selfobj)
        finally:
            App.ActiveDocument.commitTransaction()
    except Exception as err:
        from PySide import QtGui
        mb = QtGui.QMessageBox()
        mb.setIcon(mb.Icon.Warning)
        mb.setText(err.message)
        mb.setWindowTitle("Macro Overlap")
        mb.exec_()