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.
256 lines
11 KiB
Python
256 lines
11 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 Solver 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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# copper conductivity 1/(m*Ohms)
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EMFHSOLVER_DEF_SEGSIGMA = 5.8e7
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# allowed .units
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EMFHSOLVER_UNITS = ["km", "m", "cm", "mm", "um", "in", "mils"]
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EMFHSOLVER_UNITS_VALS = [1e3, 1, 1e-2, 1e-3, 1e-6, 2.54e-2, 1e-3]
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EMFHSOLVER_DEFUNITS = "mm"
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EMFHSOLVER_DEFNHINC = 1
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EMFHSOLVER_DEFNWINC = 1
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EMFHSOLVER_DEFRW = 2
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EMFHSOLVER_DEFRH = 2
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EMFHSOLVER_DEFFMIN = 1
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EMFHSOLVER_DEFFMAX = 1e9
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EMFHSOLVER_DEFNDEC = 1
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# default input file name
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EMFHSOLVER_DEF_FILENAME = "fasthenry_input_file.inp"
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import FreeCAD, FreeCADGui, Mesh, Part, MeshPart, Draft, DraftGeomUtils, os
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import EM
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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 makeFHSolver(units=None,sigma=None,nhinc=None,nwinc=None,rh=None,rw=None,fmin=None,fmax=None,ndec=None,filename=None,name='FHSolver'):
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'''Creates a FastHenry Solver object (all statements needed for the simulation)
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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 _FHSegment
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_FHSolver(obj)
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# manage ViewProvider object
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if FreeCAD.GuiUp:
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_ViewProviderFHSolver(obj.ViewObject)
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# set base ViewObject properties to user-selected values (if any)
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if units in EMFHSOLVER_UNITS:
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obj.Units = units
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else:
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obj.Units = EMFHSOLVER_DEFUNITS
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if sigma:
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obj.Sigma = sigma
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else:
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# use default sigma, but scale it according to the chosen units of measurement
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mylist = EMFHSOLVER_UNITS
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unitindex = mylist.index('mm')
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unitindex = EMFHSOLVER_UNITS.index("mm")
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obj.Sigma = EMFHSOLVER_DEF_SEGSIGMA * EMFHSOLVER_UNITS_VALS[EMFHSOLVER_UNITS.index(obj.Units)]
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if nhinc:
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obj.nhinc = nhinc
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else:
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obj.nhinc = EMFHSOLVER_DEFNHINC
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if nwinc:
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obj.nwinc = nwinc
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else:
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obj.nwinc = EMFHSOLVER_DEFNWINC
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if rh:
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obj.rh = rh
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else:
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obj.rh = EMFHSOLVER_DEFRH
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if rw:
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obj.rw = rw
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else:
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obj.rw = EMFHSOLVER_DEFRW
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if fmin:
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obj.fmin = fmin
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else:
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obj.fmin = EMFHSOLVER_DEFFMIN
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if fmax:
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obj.fmax = rw
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else:
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obj.fmax = EMFHSOLVER_DEFFMAX
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if ndec:
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obj.ndec = ndec
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else:
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obj.ndec = EMFHSOLVER_DEFNDEC
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if filename:
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obj.Filename = filename
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else:
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obj.Filename = EMFHSOLVER_DEF_FILENAME
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# return the newly created Python object
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return obj
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class _FHSolver:
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'''The EM FastHenry Solver object'''
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def __init__(self, obj):
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''' Add properties '''
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obj.addProperty("App::PropertyEnumeration","Units","EM",QT_TRANSLATE_NOOP("App::Property","The FastHenry '.units'"))
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obj.addProperty("App::PropertyFloat","Sigma","EM",QT_TRANSLATE_NOOP("App::Property","Default Segment conductivity ('sigma' segment parameter in '.default')"))
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obj.addProperty("App::PropertyInteger","nhinc","EM",QT_TRANSLATE_NOOP("App::Property","Default number of filaments in the height direction ('nhinc' segment parameter in '.default')"))
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obj.addProperty("App::PropertyInteger","nwinc","EM",QT_TRANSLATE_NOOP("App::Property","Default number of filaments in the width direction ('nwinc' segment parameter in '.default')"))
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obj.addProperty("App::PropertyInteger","rh","EM",QT_TRANSLATE_NOOP("App::Property","Default ratio of adjacent filaments in the height direction ('rh' segment parameter in '.default')"))
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obj.addProperty("App::PropertyInteger","rw","EM",QT_TRANSLATE_NOOP("App::Property","Default ratio of adjacent filaments in the width direction ('rw' segment parameter in '.default')"))
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obj.addProperty("App::PropertyFloat","fmin","EM",QT_TRANSLATE_NOOP("App::Property","Lowest simulation frequency ('fmin' parameter in '.freq')"))
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obj.addProperty("App::PropertyFloat","fmax","EM",QT_TRANSLATE_NOOP("App::Property","Highest simulation frequency ('fmzx' parameter in '.freq')"))
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obj.addProperty("App::PropertyFloat","ndec","EM",QT_TRANSLATE_NOOP("App::Property","Number of desired frequency points per decade ('ndec' parameter in '.freq')"))
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obj.addProperty("App::PropertyFile","Filename","EM",QT_TRANSLATE_NOOP("App::Property","Simulation filename when exporting to FastHenry input file format"))
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obj.Proxy = self
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self.Type = "FHSolver"
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obj.Units = EMFHSOLVER_UNITS
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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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# but nothing to do
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return
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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_FHSolver 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,headOrTail):
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''' Serialize the object to the 'fid' file descriptor
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'''
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if headOrTail == "head":
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fid.write("* FastHenry input file created using FreeCAD's ElectroMagnetic Workbench\n")
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fid.write("* See http://www.freecad.org, http://www.fastfieldsolvers.com and http://epc-co.com\n")
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fid.write("\n")
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fid.write(".units " + self.Object.Units + "\n")
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fid.write("\n")
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fid.write(".default sigma=" + str(self.Object.Sigma) + " nhinc=" + str(self.Object.nhinc) + " nwinc=" + str(self.Object.nwinc))
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fid.write(" rh=" + str(self.Object.rh) + " rw=" + str(self.Object.rw) + "\n")
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fid.write("\n")
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else:
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fid.write(".freq fmin=" + str(self.Object.fmin) + " fmax=" + str(self.Object.fmax) + " ndec=" + str(self.Object.ndec) + "\n")
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fid.write("\n")
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fid.write(".end\n")
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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 _ViewProviderFHSolver:
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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, 'solver_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 _CommandFHSolver:
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''' The EM FastHenry Solver command definition
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'''
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def GetResources(self):
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return {'Pixmap' : os.path.join(iconPath, 'solver_icon.svg') ,
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'MenuText': QT_TRANSLATE_NOOP("EM_FHSolver","FHSolver"),
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'Accel': "E, X",
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'ToolTip': QT_TRANSLATE_NOOP("EM_FHSolver","Creates a FastHenry Solver object")}
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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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# init properties (future)
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#self.Length = None
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# preferences
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#p = FreeCAD.ParamGet("User parameter:BaseApp/Preferences/Mod/EM")
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#self.Width = p.GetFloat("Width",200)
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FreeCAD.ActiveDocument.openTransaction(translate("EM","Create FHSolver"))
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FreeCADGui.addModule("EM")
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FreeCADGui.doCommand('obj=EM.makeFHSolver()')
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FreeCAD.ActiveDocument.commitTransaction()
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FreeCAD.ActiveDocument.recompute()
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if FreeCAD.GuiUp:
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FreeCADGui.addCommand('EM_FHSolver',_CommandFHSolver())
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