New tool: parametric Downgrade

InitGui.py

@@ -33,6 +33,9 @@ class LatticeWorkbench (Workbench):
         commandslist = commandslist + CompoundFilter.exportedCommands
         import latticeBoundBox
         commandslist = commandslist + latticeBoundBox.exportedCommands
+        import latticeDowngrade
+        commandslist = commandslist + latticeDowngrade.exportedCommands
+        
 
         self.appendToolbar('Lattice', commandslist)
         self.treecmdList = ['importPart', 'updateImportedPartsCommand']

latticeDowngrade.py

@@ -0,0 +1,169 @@
+#***************************************************************************
+#*                                                                         *
+#*   Copyright (c) 2015 - 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                                                                   *
+#*                                                                         *
+#***************************************************************************
+
+from latticeCommon import *
+import latticeMarkers as markers
+import math
+
+__title__="latticeDowngrade module for FreeCAD"
+__author__ = "DeepSOIC"
+__url__ = ""
+
+
+
+# -------------------------- common stuff --------------------------------------------------
+
+def makeLatticeDowngrade(name):
+    '''makeLatticeDowngrade(name): makes a latticeDowngrade object.'''
+    obj = FreeCAD.ActiveDocument.addObject("Part::FeaturePython",name)
+    _latticeDowngrade(obj)
+    _ViewProviderLatticeDowngrade(obj.ViewObject)
+    return obj
+
+class _latticeDowngrade:
+    "The latticeDowngrade object"
+    def __init__(self,obj):
+        self.Type = "latticeDowngrade"
+        obj.addProperty("App::PropertyLink","Base","latticeDowngrade","Object to downgrade")
+        
+        obj.addProperty("App::PropertyEnumeration","Mode","latticeDowngrade","Type of elements to output.")
+        obj.Mode = ['bypass','Compounds','CompSolids','Solids','Shells','Faces','Wires','Edges','Vertices']
+        obj.Mode = 'bypass'
+        
+        obj.Proxy = self
+        
+
+    def execute(self,obj):
+        rst = [] #variable to receive the final list of shapes
+        shp = obj.Base.Shape
+        if obj.Mode == 'bypass':
+            rst = [shp]
+        elif obj.Mode == 'Compounds':
+            rst = shp.Compounds
+        elif obj.Mode == 'CompSolids':
+            rst = shp.CompSolids
+        elif obj.Mode == 'Solids':
+            rst = shp.Solids
+        elif obj.Mode == 'Shells':
+            rst = shp.Shells
+        elif obj.Mode == 'Faces':
+            rst = shp.Faces
+        elif obj.Mode == 'Wires':
+            rst = shp.Wires
+        elif obj.Mode == 'Edges':
+            rst = shp.Edges
+        elif obj.Mode == 'Vertices':
+            rst = shp.Vertexes
+        else:
+            raise ValueError('Downgrade mode not implemented:'+obj.Mode)
+        
+        if len(rst) == 0:
+            scale = 1.0
+            if not obj.Base.Shape.isNull():
+                scale = obj.Base.Shape.BoundBox.DiagonalLength/math.sqrt(3)
+            if scale < DistConfusion * 100:
+                scale = 1.0
+            obj.Shape = markers.getNullShapeShape(scale)
+            raise ValueError('Downgrade output is null') #Feeding empty compounds to FreeCAD seems to cause rendering issues, otherwise it would have been a good idea to output nothing.
+        
+        obj.Shape = Part.makeCompound(rst)
+        return
+        
+        
+class _ViewProviderLatticeDowngrade:
+    "A View Provider for the latticeDowngrade object"
+
+    def __init__(self,vobj):
+        vobj.Proxy = self
+       
+    def getIcon(self):
+        return getIconPath("Lattice_Downgrade.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.Base]
+
+
+def CreateLatticeDowngrade(name, mode = "Wires"):
+    FreeCAD.ActiveDocument.openTransaction("Create latticeDowngrade")
+    FreeCADGui.addModule("latticeDowngrade")
+    FreeCADGui.doCommand("f = latticeDowngrade.makeLatticeDowngrade(name = '"+name+"')")
+    FreeCADGui.doCommand("f.Base = FreeCADGui.Selection.getSelection()[0]")
+    FreeCADGui.doCommand("f.Mode = '"+mode+"'")    
+    FreeCADGui.doCommand("f.Label = f.Mode + ' of ' + f.Base.Label")    
+    FreeCADGui.doCommand("f.Base.ViewObject.hide()")
+    FreeCADGui.doCommand("f.Proxy.execute(f)")
+    FreeCADGui.doCommand("f.purgeTouched()")
+    FreeCADGui.doCommand("f = None")
+    FreeCAD.ActiveDocument.commitTransaction()
+
+
+# -------------------------- /common stuff --------------------------------------------------
+
+# -------------------------- Gui command --------------------------------------------------
+
+class _CommandLatticeDowngrade:
+    "Command to create latticeDowngrade feature"
+    def GetResources(self):
+        return {'Pixmap'  : getIconPath("Lattice_Downgrade.svg"),
+                'MenuText': QtCore.QT_TRANSLATE_NOOP("Lattice_Downgrade","Parametric Downgrade"),
+                'Accel': "",
+                'ToolTip': QtCore.QT_TRANSLATE_NOOP("Lattice_Downgrade","Parametric Downgrade: downgrade and put results into a compound.")}
+        
+    def Activated(self):
+        if len(FreeCADGui.Selection.getSelection()) == 1 :
+            CreateLatticeDowngrade(name = "Downgrade")
+        else:
+            mb = QtGui.QMessageBox()
+            mb.setIcon(mb.Icon.Warning)
+            mb.setText(_translate("Lattice_Downgrade", "Select a shape to downgrade, first!", None))
+            mb.setWindowTitle(_translate("Lattice_Downgrade","Bad selection", None))
+            mb.exec_()
+            
+    def IsActive(self):
+        if FreeCAD.ActiveDocument:
+            return True
+        else:
+            return False
+            
+FreeCADGui.addCommand('Lattice_Downgrade', _CommandLatticeDowngrade())
+
+exportedCommands = ['Lattice_Downgrade']
+
+# -------------------------- /Gui command --------------------------------------------------