Create workbench

Gui/Resources/icons/Assembly_Move.svg

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+  <metadata
+     id="metadata5006">
+    <rdf:RDF>
+      <cc:Work
+         rdf:about="">
+        <dc:format>image/svg+xml</dc:format>
+        <dc:type
+           rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
+        <dc:title>Draft_Move</dc:title>
+        <cc:license
+           rdf:resource="" />
+        <dc:date>Mon Oct 10 13:44:52 2011 +0000</dc:date>
+        <dc:creator>
+          <cc:Agent>
+            <dc:title>[wmayer]</dc:title>
+          </cc:Agent>
+        </dc:creator>
+        <dc:rights>
+          <cc:Agent>
+            <dc:title>FreeCAD LGPL2+</dc:title>
+          </cc:Agent>
+        </dc:rights>
+        <dc:publisher>
+          <cc:Agent>
+            <dc:title>FreeCAD</dc:title>
+          </cc:Agent>
+        </dc:publisher>
+        <dc:identifier>FreeCAD/src/Mod/Draft/Resources/icons/Draft_Move.svg</dc:identifier>
+        <dc:relation>http://www.freecadweb.org/wiki/index.php?title=Artwork</dc:relation>
+        <dc:contributor>
+          <cc:Agent>
+            <dc:title>[agryson] Alexander Gryson</dc:title>
+          </cc:Agent>
+        </dc:contributor>
+        <dc:subject>
+          <rdf:Bag>
+            <rdf:li>arrow</rdf:li>
+            <rdf:li>move</rdf:li>
+            <rdf:li>arrows</rdf:li>
+            <rdf:li>compass</rdf:li>
+            <rdf:li>cross</rdf:li>
+          </rdf:Bag>
+        </dc:subject>
+        <dc:description>Four equally sized arrow heads at 90° to eachother, all joined at the tail</dc:description>
+      </cc:Work>
+    </rdf:RDF>
+  </metadata>
+</svg>

InitGui.py

@@ -0,0 +1,27 @@
+import FreeCAD, FreeCADGui
+
+class Assembly3Workbench(FreeCADGui.Workbench):
+    import asm3
+    MenuText = 'Assembly 3'
+    Icon = asm3.utils.addIconToFCAD('AssemblyWorkbench.svg')
+
+    def Activated(self):
+        import asm3
+        asm3.constraint.Observer.attach()
+
+    def Deactivated(self):
+        import asm3
+        asm3.constraint.Observer.detach()
+
+    def Initialize(self):
+        import asm3
+        cmds = asm3.gui.AsmCmdType.getInfo().TypeNames
+        asm3.utils.logger.debug(cmds)
+        self.appendToolbar('asm3',cmds)
+        self.appendMenu('&Assembly3', cmds)
+        self.appendToolbar('asm3 Constraint',
+                    asm3.constraint.Constraint.CommandList)
+        #  FreeCADGui.addPreferencePage(
+        #          ':/assembly3/ui/assembly3_prefs.ui','Assembly3')
+
+FreeCADGui.addWorkbench(Assembly3Workbench)

__init__.py

@@ -1,5 +1,5 @@
 import FreeCAD, FreeCADGui, Part
-from asm3 import utils,assembly,solver,constraint,system
+from asm3 import proxy,utils,assembly,solver,constraint,system,gui
 from asm3.utils import logger
 from asm3.assembly import Assembly,AsmConstraint
 try:

assembly.py

@@ -121,6 +121,7 @@ class AsmPartGroup(AsmGroup):
         obj = parent.Document.addObject("App::FeaturePython",name,
                     AsmPartGroup(parent),None,True)
         ViewProviderAsmPartGroup(obj.ViewObject)
+        obj.purgeTouched()
         return obj
 
 
@@ -130,6 +131,11 @@ class ViewProviderAsmPartGroup(ViewProviderAsmBase):
     def onDelete(self,_obj,_subs):
         return False
 
+    def canDropObject(self,obj):
+        return isTypeOf(obj,Assembly) or not isTypeOf(obj,AsmBase)
+
+    def canDropObjects(self):
+        return True
 
 class AsmElement(AsmBase):
     def __init__(self,parent):
@@ -373,7 +379,7 @@ class AsmElementLink(AsmBase):
         if not ret:
             # It is from a non assembly child part, then use our own element
             # group as the holder for elements
-            ret = [Assembly.Selection(assembly.obj,owner,subname)]
+            ret = [Assembly.Info(assembly.obj,owner,subname)]
 
         if not isTypeOf(ret[-1].Object,AsmPartGroup):
             raise RuntimeError('Invalid element link ' + subname)
@@ -436,7 +442,8 @@ class AsmElementLink(AsmBase):
         if not isTypeOf(part,Assembly,True) and \
            not Constraint.isDisabled(self.parent.obj) and \
            not Constraint.isLocked(self.parent.obj):
-            getter = getattr(part.getLinkedObject(True),'getLinkExtProperty')
+            getter = getattr(part.getLinkedObject(True),
+                    'getLinkExtProperty',None)
 
             # special treatment of link array (i.e. when ElementCount!=0), we
             # allow the array element to be moveable by the solver
@@ -543,6 +550,7 @@ class ViewProviderAsmElementLink(ViewProviderAsmBase):
 class AsmConstraint(AsmGroup):
 
     def __init__(self,parent):
+        self._initializing = True
         self.elements = None
         self.parent = getProxy(parent,AsmConstraintGroup)
         super(AsmConstraint,self).__init__()
@@ -585,8 +593,10 @@ class AsmConstraint(AsmGroup):
         obj.recompute()
 
     def execute(self,_obj):
-        self.checkSupport()
+        if not getattr(self,'_initializing',False) and\
-        self.getElements(True)
+           getattr(self,'parent',None):
+            self.checkSupport()
+            self.getElements(True)
         return False
 
     def getElements(self,refresh=False):
@@ -691,6 +701,8 @@ class AsmConstraint(AsmGroup):
 
         for e in selection.Elements:
             AsmElementLink.make(AsmElementLink.MakeInfo(cstr,*e))
+        cstr.Proxy._initializing = False
+        cstr.recompute()
         return cstr
 
 
@@ -727,6 +739,7 @@ class AsmConstraintGroup(AsmGroup):
         obj = parent.Document.addObject("App::FeaturePython",name,
                 AsmConstraintGroup(parent),None,True)
         ViewProviderAsmConstraintGroup(obj.ViewObject)
+        obj.purgeTouched()
         return obj
 
 
@@ -750,6 +763,7 @@ class AsmElementGroup(AsmGroup):
         obj = parent.Document.addObject("App::FeaturePython",name,
                         AsmElementGroup(parent),None,True)
         ViewProviderAsmElementGroup(obj.ViewObject)
+        obj.purgeTouched()
         return obj
 
 
@@ -797,17 +811,23 @@ class Assembly(AsmGroup):
         System.touch(obj)
         return False # return False to call LinkBaseExtension::execute()
 
-    def onSolverChanged(self):
+    def onSolverChanged(self,setup=False):
         for obj in self.getConstraintGroup().Group:
+            # setup==True usually means we are restoring, so try to restore the
+            # non-touched state if possible, since recompute() below will touch
+            # the constraint object
+            touched = not setup or 'Touched' in obj.State
             obj.recompute()
+            if not touched:
+                obj.purgeTouched()
 
     def buildShape(self):
+        import Part
         obj = self.obj
-        if not obj.BuildShape:
+        if obj.BuildShape == BuildShapeNone:
-            obj.Shape.nullify()
+            obj.Shape = Part.Shape()
             return
 
-        import Part
         shape = []
         partGroup = self.getPartGroup(obj)
         group = partGroup.Group
@@ -855,7 +875,8 @@ class Assembly(AsmGroup):
         # all groups exist. The order of the group is important to make sure
         # correct rendering and picking behavior
         self.getPartGroup(True)
-        self.onSolverChanged()
+
+        self.onSolverChanged(True)
 
     def onChanged(self, obj, prop):
         if prop == 'BuildShape':
@@ -958,10 +979,28 @@ class Assembly(AsmGroup):
                 "Part::FeaturePython",name,Assembly(),None,True)
         ViewProviderAssembly(obj.ViewObject)
         obj.Visibility = True
+        obj.purgeTouched()
         return obj
 
     Info = namedtuple('AssemblyInfo',('Assembly','Object','Subname'))
 
+    @staticmethod
+    def find(sels=None):
+        'Find all assembly objects among the current selection'
+        objs = set()
+        if sels is None:
+            sels = FreeCADGui.Selection.getSelectionEx('',False)
+        for sel in sels:
+            if not sel.SubElementNames:
+                if isTypeOf(sel.Object,Assembly):
+                    objs.add(sel.Object)
+                continue
+            for subname in sel.SubElementNames:
+                ret = Assembly.findChild(sel.Object,subname,recursive=True)
+                if ret:
+                    objs.add(ret[-1].Assembly)
+        return tuple(objs)
+
     @staticmethod
     def findChild(obj,subname,childType=None,
             recursive=False,relativeToChild=True):
@@ -991,7 +1030,7 @@ class Assembly(AsmGroup):
         if isTypeOf(obj,Assembly,True):
             assembly = obj
         subs = subname if isinstance(subname,list) else subname.split('.')
-        for i,name in enumerate(subs[:-2]):
+        for i,name in enumerate(subs[:-1]):
             obj = obj.getSubObject(name+'.',1)
             if not obj:
                 raise RuntimeError('Cannot find sub object {}'.format(name))
@@ -1043,12 +1082,21 @@ class ViewProviderAssembly(ViewProviderAsmGroup):
     def canDragObjects(self):
         return False
 
-    def canDropObject(self,_child):
+    @property
-        return False
+    def PartGroup(self):
+        return self.ViewObject.Object.Proxy.getPartGroup()
+
+    def canDropObject(self,obj):
+        self.PartGroup.ViewObject.canDropObject(obj)
 
     def canDropObjects(self):
-        return False
+        return True
+
+    def dropObjectEx(self,_vobj,obj,owner,subname):
+        self.PartGroup.ViewObject.dropObject(obj,owner,subname)
 
     def getIcon(self):
         return System.getIcon(self.ViewObject.Object)
 
+
+

constraint.py

@@ -145,14 +145,83 @@ def _a(solver,partInfo,subname,shape):
     return _c(solver,partInfo,subname,shape,True)
 
 
+class ConstraintCommand:
+    def __init__(self,tp):
+        self.tp = tp
+
+    def GetResources(self):
+        return self.tp.GetResources()
+
+    def Activated(self):
+        from asm3.assembly import AsmConstraint
+        AsmConstraint.make(self.tp._id)
+
+    def IsActive(self):
+        return FreeCADGui.ActiveDocument and self.tp._active
+
+class SelectionObserver:
+    def __init__(self):
+        self._attached = False
+
+    def onChanged(self):
+        from asm3.assembly import AsmConstraint
+        for cls in Constraint._cmdTypes:
+            try:
+                AsmConstraint.getSelection()
+            except Exception as e:
+                logger.trace('selection "{}" exception: {}'.format(
+                    cls.getName(),e.message),frame=1)
+                cls._active = False
+            else:
+                cls._active = True
+
+    def addSelection(self,*_args):
+        self.onChanged()
+
+    def removeSelection(self,*_args):
+        self.onChanged()
+
+    def setSelection(self,*_args):
+        self.onChanged()
+
+    def clearSelection(self,*_args):
+        logger.trace('selection cleared')
+        for cls in Constraint._cmdTypes:
+            cls._active = False
+
+    def attach(self):
+        if not self._attached:
+            FreeCADGui.Selection.addObserver(self)
+            self._attached = True
+            self.onChanged()
+
+    def detach(self):
+        if self._attached:
+            FreeCADGui.Selection.removeObserver(self)
+            self._attached = False
+            self.clearSelection('')
+
+Observer = SelectionObserver()
+
 class Constraint(ProxyType):
     'constraint meta class'
 
     _typeID = '_ConstraintType'
     _typeEnum = 'ConstraintType'
-
     _disabled = 'Disabled'
 
+    CommandList = []
+    _cmdTypes = []
+
+    def register(cls):
+        super(Constraint,cls).register()
+        if cls._menuItem:
+            name = 'asm3Add'+cls.getName()
+            mcs = cls.__class__
+            mcs.CommandList.append(name)
+            mcs._cmdTypes.append(cls)
+            FreeCADGui.addCommand(name,ConstraintCommand(cls))
+
     @classmethod
     def attach(mcs,obj,checkType=True):
         if checkType:
@@ -220,8 +289,12 @@ class Base(with_metaclass(Constraint,object)):
     _props = []
     _iconName = 'Assembly_ConstraintGeneral.svg'
 
+    _menuText = 'Add a "{}" constraint'
+    _active = False
+    _menuItem = False
+
     def __init__(self,_obj):
-        self._supported = True
+        pass
 
     @classmethod
     def getPropertyInfoList(cls):
@@ -295,10 +368,29 @@ class Base(with_metaclass(Constraint,object)):
         else:
             logger.warn('{} no constraint func'.format(cstrName(obj)))
 
+    @classmethod
+    def getMenuText(cls):
+        return cls._menuText.format(cls.getName())
+
+    @classmethod
+    def getToolTip(cls):
+        tooltip = getattr(cls,'_tooltip',None)
+        if not tooltip:
+            return cls.getMenuText()
+        return tooltip.format(cls.getName())
+
+    @classmethod
+    def GetResources(cls):
+        return {'Pixmap':utils.addIconToFCAD(cls._iconName,_iconPath),
+                'MenuText':cls.getMenuText(),
+                'ToolTip':cls.getToolTip()}
+
 
 class Locked(Base):
     _id = 0
     _iconName = 'Assembly_ConstraintLock.svg'
+    _menuItem = True
+    _tooltip = 'Add a "{}" constraint to fix part(s)'
 
     @classmethod
     def prepare(cls,obj,solver):
@@ -309,6 +401,7 @@ class Locked(Base):
     def check(cls,_group):
         pass
 
+
 class BaseMulti(Base):
     _id = -1
     _entityDef = (_wa,)
@@ -414,23 +507,36 @@ class PlaneCoincident(BaseCascade):
     _id = 35
     _iconName = 'Assembly_ConstraintCoincidence.svg'
     _props = ['Cascade','Offset']
+    _menuItem = True
+    _tooltip = \
+        'Add a "{}" constraint to conincide planes of two or more parts.\n'\
+        'The planes are coincided at their centers with an optional distance.'
 
 
 class PlaneAlignment(BaseCascade):
     _id = 37
     _iconName = 'Assembly_ConstraintAlignment.svg'
     _props = ['Cascade','Offset']
+    _menuItem = True
+    _tooltip = 'Add a "{}" constraint to rotate planes of two or more parts\n'\
+               'into the same orientation'
 
 
 class AxialAlignment(BaseMulti):
     _id = 36
     _iconName = 'Assembly_ConstraintAxial.svg'
+    _menuItem = True
+    _tooltip = 'Add a "{}" constraint to align planes of two or more parts.\n'\
+        'The planes are aligned at the direction of their surface normal axis.'
 
 
 class SameOrientation(BaseMulti):
     _id = 2
     _entityDef = (_n,)
     _iconName = 'Assembly_ConstraintOrientation.svg'
+    _menuItem = True
+    _tooltip = 'Add a "{}" constraint to align planes of two or more parts.\n'\
+        'The planes are aligned to have the same orientation (i.e. rotation)'
 
 
 class Angle(Base):
@@ -439,6 +545,9 @@ class Angle(Base):
     _workplane = True
     _props = ["Angle","Supplement"]
     _iconName = 'Assembly_ConstraintAngle.svg'
+    _menuItem = True
+    _tooltip = 'Add a "{}" constraint to set the angle of planes or linear\n'\
+               'edges of two parts.'
 
 
 class Perpendicular(Base):
@@ -446,19 +555,28 @@ class Perpendicular(Base):
     _entityDef = (_ln,_ln)
     _workplane = True
     _iconName = 'Assembly_ConstraintPerpendicular.svg'
+    _menuItem = True
+    _tooltip = 'Add a "{}" constraint to make planes or linear edges of two\n'\
+               'parts perpendicular.'
 
 
 class Parallel(Base):
-    _id = 29
+    _id = -1
     _entityDef = (_ln,_ln)
     _workplane = True
     _iconName = 'Assembly_ConstraintParallel.svg'
+    _menuItem = True
+    _tooltip = 'Add a "{}" constraint to make planes or linear edges of two\n'\
+               'parts parallel.'
 
 
 class MultiParallel(BaseMulti):
     _id = 291
     _entityDef = (_ln,)
     _iconName = 'Assembly_ConstraintMultiParallel.svg'
+    _menuItem = True
+    _tooltip = 'Add a "{}" constraint to make planes or linear edges of two\n'\
+               'or more parts parallel.'
 
 
 class PointsCoincident(Base):

gui.py

@@ -0,0 +1,67 @@
+from future.utils import with_metaclass
+import FreeCAD, FreeCADGui
+from asm3.utils import logger,objName,addIconToFCAD
+from asm3.assembly import Assembly,AsmConstraint
+from asm3.proxy import ProxyType
+
+class AsmCmdType(ProxyType):
+    def register(cls):
+        super(AsmCmdType,cls).register()
+        if cls._id >= 0:
+            FreeCADGui.addCommand(cls.getName(),cls())
+
+class AsmCmdBase(with_metaclass(AsmCmdType,object)):
+    _id = -1
+    _active = True
+
+    @classmethod
+    def getName(cls):
+        return 'asm3'+cls.__name__[3:]
+
+    @classmethod
+    def GetResources(cls):
+        return {
+            'Pixmap':addIconToFCAD(cls._iconName),
+            'MenuText':cls.getMenuText(),
+            'ToolTip':cls.getToolTip()
+        }
+
+    @classmethod
+    def getMenuText(cls):
+        return cls._menuText
+
+    @classmethod
+    def getToolTip(cls):
+        return getattr(cls,'_tooltip',cls.getMenuText())
+
+    @classmethod
+    def IsActive(cls):
+        if FreeCAD.ActiveDocument and cls._active:
+            return True
+
+class AsmCmdNew(AsmCmdBase):
+    _id = 0
+    _menuText = 'Create a new assembly'
+    _iconName = 'Assembly_New_Assembly.svg'
+
+    def Activated(self):
+        Assembly.make()
+
+class AsmCmdSolve(AsmCmdBase):
+    _id = 1
+    _menuText = 'Solve the constraints of assembly(s)'
+    _iconName = 'AssemblyWorkbench.svg'
+
+    def Activated(self):
+        import asm3.solver as solver
+        solver.solve()
+
+
+class AsmCmdMove(AsmCmdBase):
+    _id = 2
+    _menuText = 'Move assembly'
+    _iconName = 'Assembly_Move.svg'
+
+    def Activated(self):
+        pass
+

proxy.py

@@ -9,6 +9,8 @@ def propGetValue(self,obj):
     return getattr(getattr(obj,self.Name),'Value')
 
 class PropertyInfo(object):
+    'For holding information to create dynamic properties'
+
     def __init__(self,host,name,tp,doc='', enum=None,
             getter=propGet,group='Base',internal=False,duplicate=False):
         self.Name = name
@@ -21,9 +23,15 @@ class PropertyInfo(object):
         self.Key = host.addPropertyInfo(self,duplicate)
 
 class ProxyType(type):
+    '''
+    Meta class for managing other "proxy" like classes whose instances can be
+    dynamically attached to or detached from FCAD FeaturePython Proxy objects.
+    In other word, it is meant for managing proxies of Proxies
+    '''
+
     _typeID = '_ProxyType'
     _typeEnum = 'ProxyType'
-    _typeGroup = 'Base'
+    _propGroup = 'Base'
     _proxyName = '_proxy'
     _registry = {}
 
@@ -48,7 +56,7 @@ class ProxyType(type):
         for tp in info.Types:
             tp._idx = -1
             mcs.getInfo().Types.append(tp)
-            mcs.register(tp)
+            tp.register()
 
     @classmethod
     def getType(mcs,tp):
@@ -99,8 +107,6 @@ class ProxyType(type):
                         obj.addProperty(prop.Type,prop.Name,prop.Group,prop.Doc)
                         if prop.Enum:
                             setattr(obj,prop.Name,prop.Enum)
-                    else:
-                        obj.setPropertyStatus(prop.Name,'-Hidden')
 
             setattr(obj.Proxy,mcs._proxyName,cls(obj))
             obj.ViewObject.signalChangeIcon()
@@ -114,7 +120,6 @@ class ProxyType(type):
                 proxy.__class__.__name__))
             for key in proxy.getPropertyInfoList():
                 prop = mcs.getPropertyInfo(key)
-                #  obj.setPropertyStatus(prop.Name,'Hidden')
                 obj.removeProperty(prop.Name)
             callback = getattr(proxy,'onDetach',None)
             if callback:
@@ -143,14 +148,14 @@ class ProxyType(type):
         if checkType:
             if mcs._typeID not in obj.PropertiesList:
                 obj.addProperty("App::PropertyInteger",
-                        mcs._typeID,mcs._typeGroup,'',0,False,True)
+                        mcs._typeID,mcs._propGroup,'',0,False,True)
                 mcs.setDefaultTypeID(obj)
 
             if mcs._typeEnum not in obj.PropertiesList:
                 logger.debug('type enum {}, {}'.format(mcs._typeEnum,
-                    mcs._typeGroup))
+                    mcs._propGroup))
                 obj.addProperty("App::PropertyEnumeration",
-                        mcs._typeEnum,mcs._typeGroup,'',2)
+                        mcs._typeEnum,mcs._propGroup,'',2)
             mcs.setTypeName(obj,info.TypeNames)
 
             idx = 0
@@ -179,10 +184,9 @@ class ProxyType(type):
         cls._idx = -1
         mcs = cls.__class__
         mcs.getInfo().Types.append(cls)
-        mcs.register(cls)
+        cls.register()
 
-    @classmethod
+    def register(cls):
-    def register(mcs,cls):
         '''
         Register a class to this meta class
 
@@ -193,6 +197,7 @@ class ProxyType(type):
         '''
         if cls._id < 0:
             return
+        mcs = cls.__class__
         info = mcs.getInfo()
         if cls._id in info.TypeMap:
             raise RuntimeError('Duplicate {} type id {}'.format(

solver.py

@@ -22,15 +22,10 @@ class Solver(object):
         self.system = System.getSystem(assembly)
         cstrs = assembly.Proxy.getConstraints()
         if not cstrs:
-            self.system.log('no constraint found in assembly '
+            logger.warn('no constraint found in assembly '
                 '{}'.format(objName(assembly)))
             return
 
-        parts = assembly.Proxy.getPartGroup().Group
-        if len(parts)<=1:
-            self.system.log('not enough parts in {}'.format(objName(assembly)))
-            return
-
         self._fixedGroup = 2
         self.group = 1 # the solving group
         self._partMap = {}
@@ -41,16 +36,24 @@ class Solver(object):
 
         self.system.GroupHandle = self._fixedGroup
 
+        firstPart = None
+        firstPartName = None
         for cstr in cstrs:
             if Constraint.isLocked(cstr):
                 Constraint.prepare(cstr,self)
             elif not Constraint.isDisabled(cstr) and \
                 System.isConstraintSupported(
                         assembly,Constraint.getTypeName(cstr)):
+                if not firstPart:
+                    elements = cstr.Proxy.getElements()
+                    if elements:
+                        info = elements[0].Proxy.getInfo()
+                        firstPart = info.Part
+                        firstPartName = info.PartName
                 self._cstrs.append(cstr)
         if not self._fixedParts:
-            self.system.log('lock first part {}'.format(objName(parts[0])))
+            self.system.log('lock first part {}'.format(firstPartName))
-            self._fixedParts.add(parts[0])
+            self._fixedParts.add(firstPart)
 
         for cstr in self._cstrs:
             self.system.log('preparing {}'.format(cstrName(cstr)))
@@ -162,9 +165,17 @@ class Solver(object):
         self._partMap[info.Part] = partInfo
         return partInfo
 
-def solve(objs=None,recursive=True,reportFailed=True,recompute=True):
+def solve(objs=None,recursive=None,reportFailed=True,recompute=True):
     if not objs:
-        objs = FreeCAD.ActiveDocument.Objects
+        sels = FreeCADGui.Selection.getSelectionEx('',False)
+        if len(sels):
+            objs = asm.Assembly.find()
+            if not objs:
+                raise RuntimeError('No assembly found in selection')
+        else:
+            objs = FreeCAD.ActiveDocument.Objects
+            if recursive is None:
+                recursive = True
     elif not isinstance(objs,(list,tuple)):
         objs = [objs]
 

sys_sympy.py

@@ -14,12 +14,12 @@ class _AlgoType(ProxyType):
 
     _typeID = '_AlgorithmType'
     _typeEnum = 'AlgorithmType'
-    _typeGroup = 'SolverAlgorithm'
+    _propGroup = 'SolverAlgorithm'
     _proxyName = '_algo'
 
 def _makeProp(name,doc='',tp='App::PropertyFloat',group=None):
     if not group:
-        group = _AlgoType._typeGroup
+        group = _AlgoType._propGroup
     info = PropertyInfo(_AlgoType,name,tp,doc,duplicate=True,group=group)
     return info.Key
 

system.py

@@ -9,7 +9,7 @@ class System(ProxyType):
 
     _typeID = '_SolverType'
     _typeEnum = 'SolverType'
-    _typeGroup = 'Solver'
+    _propGroup = 'Solver'
     _iconName = 'Assembly_Assembly_Tree.svg'
 
     @classmethod

utils.py

@@ -5,6 +5,11 @@ Most of the functions are borrowed directly from assembly2lib.py or lib3D.py in
 assembly2
 '''
 
+import FreeCAD, FreeCADGui, Part
+import numpy as np
+from asm3.FCADLogger import FCADLogger
+logger = FCADLogger('asm3')
+
 import sys, os
 modulePath = os.path.dirname(os.path.realpath(__file__))
 
@@ -29,12 +34,16 @@ def getIcon(obj,disabled=False,path=None):
         obj._iconDisabled = QIcon(pixmap)
     return obj._iconDisabled
 
-
+def addIconToFCAD(iconFile,path=None):
-import FreeCAD, FreeCADGui, Part
+    iconName = ':asm3/icons/' + iconFile
-import numpy as np
+    if not path:
-
+        path = iconPath
-import asm3.FCADLogger
+    try:
-logger = asm3.FCADLogger.FCADLogger('assembly3')
+        path = os.path.join(path,iconFile)
+        FreeCADGui.addIcon(iconName,path)
+    except AssertionError:
+        pass
+    return iconName
 
 def objName(obj):
     if obj.Label == obj.Name: