0d4f02c4c9
- Conductive uniform plane support ('G' statement in FastHenry), including holes
- Support for Node equivalence ('-equiv' statement in FastHenry)
- FreeCAD save support for the models created in the workbench
- Updated copyright including Efficient Power Conversion Corp. Inc.
300 lines
13 KiB
Python
300 lines
13 KiB
Python
#***************************************************************************
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#* *
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#* Copyright (c) 2018 *
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#* Efficient Power Conversion Corporation, Inc. http://epc-co.com *
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#* *
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#* Developed by FastFieldSolvers S.R.L. under contract by EPC *
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#* http://www.fastfieldsolvers.com *
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#* *
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#* This program is free software; you can redistribute it and/or modify *
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#* it under the terms of the GNU Lesser General Public License (LGPL) *
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#* as published by the Free Software Foundation; either version 2 of *
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#* the License, or (at your option) any later version. *
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#* for detail see the LICENCE text file. *
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#* *
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#* This program is distributed in the hope that it will be useful, *
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#* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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#* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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#* GNU Library General Public License for more details. *
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#* *
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#* You should have received a copy of the GNU Library General Public *
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#* License along with this program; if not, write to the Free Software *
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#* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 *
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#* USA *
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#* *
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#***************************************************************************
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__title__="FreeCAD E.M. Workbench FastHenry Node Class"
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__author__ = "FastFieldSolvers S.R.L."
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__url__ = "http://www.fastfieldsolvers.com"
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# defines
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#
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# default node color
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EMFHNODE_DEF_NODECOLOR = (1.0,0.0,0.0)
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EMFHNODE_DEF_NODESIZE = 10
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import FreeCAD, FreeCADGui, Mesh, Part, MeshPart, Draft, DraftGeomUtils, os
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from FreeCAD import Vector
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if FreeCAD.GuiUp:
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import FreeCADGui
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from PySide import QtCore, QtGui
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from DraftTools import translate
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from PySide.QtCore import QT_TRANSLATE_NOOP
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else:
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# \cond
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def translate(ctxt,txt, utf8_decode=False):
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return txt
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def QT_TRANSLATE_NOOP(ctxt,txt):
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return txt
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# \endcond
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__dir__ = os.path.dirname(__file__)
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iconPath = os.path.join( __dir__, 'Resources' )
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def makeFHNode(baseobj=None,X=0.0,Y=0.0,Z=0.0,color=None,size=None,name='FHNode'):
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'''Creates a FastHenry node ('N' statement in FastHenry)
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'baseobj' is the point object whose position is used as base for the FNNode
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If no 'baseobj' is given, X,Y,Z are used as coordinates
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Example:
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TBD
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'''
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obj = FreeCAD.ActiveDocument.addObject("Part::FeaturePython", name)
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obj.Label = translate("EM", name)
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# this adds the relevant properties to the object
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#'obj' (e.g. 'Base' property) making it a _FHNode
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_FHNode(obj)
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# manage ViewProvider object
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if FreeCAD.GuiUp:
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_ViewProviderFHNode(obj.ViewObject)
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# set base ViewObject properties to user-selected values (if any)
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if color:
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obj.ViewObject.PointColor = color
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else:
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obj.ViewObject.PointColor = EMFHNODE_DEF_NODECOLOR
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if size:
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obj.ViewObject.PointSize = size
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else:
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obj.ViewObject.PointSize = EMFHNODE_DEF_NODESIZE
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# check if 'baseobj' is a point (only base object allowed)
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if baseobj:
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if Draft.getType(baseobj) == "Point":
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# get the absolute coordinates of the Point
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X = baseobj.Shape.Point.x
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Y = baseobj.Shape.Point.y
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Z = baseobj.Shape.Point.z
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else:
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FreeCAD.Console.PrintWarning(translate("EM","FHNodes can only take the position from Point objects"))
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# set the node coordinates
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obj.Proxy.setAbsCoord(Vector(X,Y,Z))
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# force recompute to show the Python object
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FreeCAD.ActiveDocument.recompute()
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# return the newly created Python object
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return obj
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class _FHNode:
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'''The EM FastHenry Node object'''
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def __init__(self, obj):
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''' Add properties '''
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obj.addProperty("App::PropertyDistance","X","EM",QT_TRANSLATE_NOOP("App::Property","X Location"))
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obj.addProperty("App::PropertyDistance","Y","EM",QT_TRANSLATE_NOOP("App::Property","Y Location"))
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obj.addProperty("App::PropertyDistance","Z","EM",QT_TRANSLATE_NOOP("App::Property","Z Location"))
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obj.Proxy = self
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self.Type = "FHNode"
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# save the object in the class, to store or retrieve specific data from it
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# from within the class
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self.Object = obj
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def execute(self, obj):
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''' this method is mandatory. It is called on Document.recompute()
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'''
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#FreeCAD.Console.PrintWarning("\n_FHNode execute\n") #debug
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# set the shape as a Vertex at relative position obj.X, obj.Y, obj.Z
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# The vertex will then be adjusted according to the FHNode Placement
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obj.Shape = Part.Vertex(self.getRelCoord())
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def onChanged(self, obj, prop):
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''' take action if an object property 'prop' changed
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'''
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#FreeCAD.Console.PrintWarning("\n_FHNode onChanged(" + str(prop)+")\n") #debug
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if not hasattr(self,"Object"):
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# on restore, self.Object is not there anymore (JSON does not serialize complex objects
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# members of the class, so __getstate__() and __setstate__() skip them);
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# so we must "re-attach" (re-create) the 'self.Object'
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self.Object = obj
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def serialize(self,fid,extension=""):
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''' Serialize the object to the 'fid' file descriptor
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'fid': the file descriptor
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'extension': any extension to add to the node name, in case of a node
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belonging to a conductive plane. If not empty, it also changes
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the way the node is serialized, according to the plane node definition.
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Defaults to empty string.
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'''
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pos = self.getAbsCoord()
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if extension == "":
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fid.write("N" + self.Object.Label)
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fid.write(" x=" + str(pos.x) + " y=" + str(pos.y) + " z=" + str(pos.z))
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else:
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fid.write("+ N" + self.Object.Label + extension)
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fid.write(" (" + str(pos.x) + "," + str(pos.y) + "," + str(pos.z) + ")")
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fid.write("\n")
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def getAbsCoord(self):
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''' Get a FreeCAD.Vector containing the absolute node coordinates
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'''
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# should be "self.Object.Placement.multVec(Vector(self.Object.X, self.Object.Y, self.Object.Z))"
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# but as the shape is always a Vertex, this is a shortcut
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return self.Object.Shape.Point
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def getRelCoord(self):
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''' Get a FreeCAD.Vector containing the relative node coordinates w.r.t. the Placement
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These coordinates correspond to (self.Object.X, self.Object.Y, self.Object.Z),
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that are the same as self.Object.Placement.inverse().multVec(self.Object.Shape.Point))
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'''
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return Vector(self.Object.X,self.Object.Y,self.Object.Z)
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def setRelCoord(self,rel_coord,placement=None):
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''' Sets the relative node position w.r.t. the placement
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'rel_coord': FreeCAD.Vector containing the relative node coordinates w.r.t. the Placement
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'placement': the new placement. If 'None', the placement is not changed
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Remark: the function will not recalculate() the object (i.e. change of position is not visible
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just by calling this function)
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'''
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if placement:
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# validation of the parameter
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if isinstance(placement, FreeCAD.Placement):
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self.Object.Placement = placement
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self.Object.X = rel_coord.x
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self.Object.Y = rel_coord.y
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self.Object.Z = rel_coord.z
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def setAbsCoord(self,abs_coord,placement=None):
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''' Sets the absolute node position, considering the object placement, and in case forcing a new placement
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'abs_coord': FreeCAD.Vector containing the absolute node coordinates
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'placement': the new placement. If 'None', the placement is not changed
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Remark: the function will not recalculate() the object (i.e. change of position is not visible
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just by calling this function)
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'''
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if placement:
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# validation of the parameter
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if isinstance(placement, FreeCAD.Placement):
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self.Object.Placement = placement
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rel_coord = self.Object.Placement.inverse().multVec(abs_coord)
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self.Object.X = rel_coord.x
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self.Object.Y = rel_coord.y
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self.Object.Z = rel_coord.z
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def __getstate__(self):
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return self.Type
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def __setstate__(self,state):
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if state:
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self.Type = state
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class _ViewProviderFHNode:
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def __init__(self, obj):
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''' Set this object to the proxy object of the actual view provider '''
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obj.Proxy = self
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self.Object = obj.Object
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def attach(self, obj):
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''' Setup the scene sub-graph of the view provider, this method is mandatory '''
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# on restore, self.Object is not there anymore (JSON does not serialize complex objects
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# members of the class, so __getstate__() and __setstate__() skip them);
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# so we must "re-attach" (re-create) the 'self.Object'
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self.Object = obj.Object
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return
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def updateData(self, fp, prop):
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''' Print the name of the property that has changed '''
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#FreeCAD.Console.PrintMessage("ViewProvider updateData(), property: " + str(prop) + "\n")
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''' If a property of the handled feature has changed we have the chance to handle this here '''
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return
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def getDefaultDisplayMode(self):
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''' Return the name of the default display mode. It must be defined in getDisplayModes. '''
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return "Flat Lines"
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def onChanged(self, vp, prop):
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''' Print the name of the property that has changed '''
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#FreeCAD.Console.PrintMessage("ViewProvider onChanged(), property: " + str(prop) + "\n")
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def getIcon(self):
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''' Return the icon in XMP format which will appear in the tree view. This method is optional
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and if not defined a default icon is shown.
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'''
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return os.path.join(iconPath, 'node_icon.svg')
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def __getstate__(self):
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return None
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def __setstate__(self,state):
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return None
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class _CommandFHNode:
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''' The EM FastHenry Node (FHNode) command definition
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'''
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def GetResources(self):
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return {'Pixmap' : os.path.join(iconPath, 'node_icon.svg') ,
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'MenuText': QT_TRANSLATE_NOOP("EM_FHNode","FHNode"),
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'Accel': "E, N",
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'ToolTip': QT_TRANSLATE_NOOP("EM_FHNode","Creates a FastHenry Node object from scratch or from a selected object (point)")}
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def IsActive(self):
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return not FreeCAD.ActiveDocument is None
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def Activated(self):
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# get the selected object(s)
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sel = FreeCADGui.Selection.getSelectionEx()
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done = False
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# if selection is not empty
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if sel:
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# automatic mode
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import Draft
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if Draft.getType(sel[0].Object) == "Point":
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FreeCAD.ActiveDocument.openTransaction(translate("EM","Create FHNode"))
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FreeCADGui.addModule("EM")
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for selobj in sel:
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FreeCADGui.doCommand('obj=EM.makeFHNode(FreeCAD.ActiveDocument.'+selobj.Object.Name+')')
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# autogrouping, for later on
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#FreeCADGui.addModule("Draft")
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#FreeCADGui.doCommand("Draft.autogroup(obj)")
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FreeCAD.ActiveDocument.commitTransaction()
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FreeCAD.ActiveDocument.recompute()
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done = True
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# if no selection, or nothing good in the selected objects
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if not done:
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#FreeCAD.DraftWorkingPlane.setup()
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# get a 3D point via Snapper, setting the callback functions
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FreeCADGui.Snapper.getPoint(callback=self.getPoint)
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def getPoint(self,point=None,obj=None):
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"this function is called by the snapper when it has a 3D point"
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if point == None:
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return
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#coord = FreeCAD.DraftWorkingPlane.getLocalCoords(point)
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coord = point
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FreeCAD.ActiveDocument.openTransaction(translate("EM","Create FHNode"))
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FreeCADGui.addModule("EM")
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FreeCADGui.doCommand('obj=EM.makeFHNode(X='+str(coord.x)+',Y='+str(coord.y)+',Z='+str(coord.z)+')')
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FreeCAD.ActiveDocument.commitTransaction()
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FreeCAD.ActiveDocument.recompute()
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# might improve in the future with continue command
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#if self.continueCmd:
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# self.Activated()
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if FreeCAD.GuiUp:
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FreeCADGui.addCommand('EM_FHNode',_CommandFHNode())
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