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* Support for conductive planes (G) and .equiv statement

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- 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.
This commit is contained in:
Enrico Di Lorenzo - FastFieldSolvers S.R.L 2018-12-08 00:10:30 +01:00
parent 56b2c4ccb7
commit 0d4f02c4c9
21 changed files with 3157 additions and 570 deletions
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8
EM.py
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@ -1,7 +1,10 @@
#***************************************************************************
#* *
#* Copyright (c) 2018 *
#* FastFieldSolvers S.R.L. http://www.fastfieldsolvers.com *
#* Efficient Power Conversion Corporation, Inc. http://epc-co.com *
#* *
#* Developed by FastFieldSolvers S.R.L. under contract by EPC *
#* http://www.fastfieldsolvers.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) *
@ -42,7 +45,10 @@ if FreeCAD.GuiUp:
from EM_FHNode import *
from EM_FHSegment import *
from EM_FHPlaneHole import *
from EM_FHPlane import *
from EM_FHPort import *
from EM_FHEquiv import *
from EM_FHSolver import *
from EM_FHInputFile import *

248
EM_FHEquiv.py Normal file
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@ -0,0 +1,248 @@
#***************************************************************************
#* *
#* Copyright (c) 2018 *
#* Efficient Power Conversion Corporation, Inc. http://epc-co.com *
#* *
#* Developed by FastFieldSolvers S.R.L. under contract by EPC *
#* http://www.fastfieldsolvers.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__="FreeCAD E.M. Workbench FastHenry node Equivalence Class"
__author__ = "FastFieldSolvers S.R.L."
__url__ = "http://www.fastfieldsolvers.com"
# defines
#
# tolerance in distance between nodes to define a port
EMFHEQUIV_LENTOL = 1e-12
import FreeCAD, FreeCADGui, Mesh, Part, MeshPart, Draft, DraftGeomUtils, os
import EM
from FreeCAD import Vector
if FreeCAD.GuiUp:
import FreeCADGui
from PySide import QtCore, QtGui
from DraftTools import translate
from PySide.QtCore import QT_TRANSLATE_NOOP
else:
# \cond
def translate(ctxt,txt, utf8_decode=False):
return txt
def QT_TRANSLATE_NOOP(ctxt,txt):
return txt
# \endcond
__dir__ = os.path.dirname(__file__)
iconPath = os.path.join( __dir__, 'Resources' )
def makeFHEquiv(node1=None,node2=None,name='FHEquiv'):
''' Creates a FastHenry node equivalence ('.equiv' statement in FastHenry)
'node1' is the first node to shortcut
'node2' is the second node to shortcut
Example:
TBD
'''
obj = FreeCAD.ActiveDocument.addObject("Part::FeaturePython", name)
obj.Label = translate("EM", name)
# this adds the relevant properties to the object
#'obj' (e.g. 'Base' property) making it a _FHEquiv
_FHEquiv(obj)
# manage ViewProvider object
if FreeCAD.GuiUp:
_ViewProviderFHEquiv(obj.ViewObject)
# set base ViewObject properties to user-selected values (if any)
# check if 'nodeStart' is a FHNode, and if so, assign it as first node
if node1:
if Draft.getType(node2) == "FHNode":
obj.Node1 = node1
# check if 'nodeEnd' is a FHNode, and if so, assign it as second node
if node2:
if Draft.getType(node2) == "FHNode":
obj.Node2 = node2
# return the newly created Python object
return obj
class _FHEquiv:
'''The EM FastHenry node Equivalence object'''
def __init__(self, obj):
''' Add properties '''
obj.addProperty("App::PropertyLink","Node1","EM",QT_TRANSLATE_NOOP("App::Property","First FHNode to shortcut"))
obj.addProperty("App::PropertyLink","Node2","EM",QT_TRANSLATE_NOOP("App::Property","Second FHNode to shortcut"))
obj.Proxy = self
self.Type = "FHEquiv"
# save the object in the class, to store or retrieve specific data from it
# from within the class
self.Object = obj
def execute(self, obj):
''' this method is mandatory. It is called on Document.recompute()
'''
if obj.Node1 == None:
return
elif Draft.getType(obj.Node1) <> "FHNode":
FreeCAD.Console.PrintWarning(translate("EM","Node1 is not a FHNode"))
return
if obj.Node2 == None:
return
elif Draft.getType(obj.Node2) <> "FHNode":
FreeCAD.Console.PrintWarning(translate("EM","Node2 is not a FHNode"))
return
# and finally, if everything is ok, make and assign the shape
self.assignShape(obj)
def assignShape(self, obj):
''' Compute and assign the shape to the object 'obj' '''
n1 = obj.Node1.Proxy.getAbsCoord()
n2 = obj.Node1.Proxy.getAbsCoord()
shape = self.makeEquivShape(n1,n2)
# shape may be None, e.g. if endpoints coincide. Do not assign in this case.
# FHEquiv is still valid, but not visible.
if shape:
obj.Shape = shape
def makeEquivShape(self,n1,n2):
''' Compute a node equivalence shape given:
'n1': start node position (Vector)
'n2': end node position (Vector)
'''
# do not accept coincident nodes
if (n2-n1).Length < EMFHEQUIV_LENTOL:
return None
line = Part.makeLine(n1, n2)
return line
def onChanged(self, obj, prop):
''' take action if an object property 'prop' changed
'''
#FreeCAD.Console.PrintWarning("\n_FHEquiv onChanged(" + str(prop)+")\n") #debug
if not hasattr(self,"Object"):
# on restore, self.Object is not there anymore (JSON does not serialize complex objects
# members of the class, so __getstate__() and __setstate__() skip them);
# so we must "re-attach" (re-create) the 'self.Object'
self.Object = obj
def serialize(self,fid):
''' Serialize the object to the 'fid' file descriptor
'''
fid.write(".equiv N" + self.Object.Node1.Label + " N" + self.Object.Node2.Label + "\n")
def __getstate__(self):
return self.Type
def __setstate__(self,state):
if state:
self.Type = state
class _ViewProviderFHEquiv:
def __init__(self, obj):
''' Set this object to the proxy object of the actual view provider '''
obj.Proxy = self
self.Object = obj.Object
def attach(self, obj):
''' Setup the scene sub-graph of the view provider, this method is mandatory '''
# on restore, self.Object is not there anymore (JSON does not serialize complex objects
# members of the class, so __getstate__() and __setstate__() skip them);
# so we must "re-attach" (re-create) the 'self.Object'
self.Object = obj.Object
return
def updateData(self, fp, prop):
''' Print the name of the property that has changed '''
#FreeCAD.Console.PrintMessage("ViewProvider updateData(), property: " + str(prop) + "\n")
''' If a property of the handled feature has changed we have the chance to handle this here '''
return
def getDefaultDisplayMode(self):
''' Return the name of the default display mode. It must be defined in getDisplayModes. '''
return "Flat Lines"
def onChanged(self, vp, prop):
''' Print the name of the property that has changed '''
#FreeCAD.Console.PrintMessage("ViewProvider onChanged(), property: " + str(prop) + "\n")
def claimChildren(self):
''' Used to place other objects as childrens in the tree'''
c = []
if hasattr(self,"Object"):
if hasattr(self.Object,"Node1"):
c.append(self.Object.Node1)
if hasattr(self.Object,"Node2"):
c.append(self.Object.Node2)
return c
def getIcon(self):
''' Return the icon in XMP format which will appear in the tree view. This method is optional
and if not defined a default icon is shown.
'''
return os.path.join(iconPath, 'equiv_icon.svg')
def __getstate__(self):
return None
def __setstate__(self,state):
return None
class _CommandFHEquiv:
''' The EM FastHenry equivalent node (FHEquiv) command definition
'''
def GetResources(self):
return {'Pixmap' : os.path.join(iconPath, 'equiv_icon.svg') ,
'MenuText': QT_TRANSLATE_NOOP("EM_FHEquiv","FHEquiv"),
'Accel': "E, E",
'ToolTip': QT_TRANSLATE_NOOP("EM_FHEquiv","Creates a FastHenry equivalent node object from two FHNodes")}
def IsActive(self):
return not FreeCAD.ActiveDocument is None
def Activated(self):
# init properties (future)
#self.Length = None
# preferences
#p = FreeCAD.ParamGet("User parameter:BaseApp/Preferences/Mod/EM")
#self.Width = p.GetFloat("Width",200)
# get the selected object(s)
selection = FreeCADGui.Selection.getSelectionEx()
nodes = []
# if selection is not empty
for selobj in selection:
if Draft.getType(selobj.Object) == "FHNode":
nodes.append(selobj.Object)
if len(nodes) <= 1:
FreeCAD.Console.PrintWarning(translate("EM","Less than FHNodes selected when creating a FHEquiv. Nothing created."))
else:
FreeCAD.ActiveDocument.openTransaction(translate("EM","Create FHEquiv"))
FreeCADGui.addModule("EM")
for node_num in range(len(nodes)-1):
FreeCADGui.doCommand('obj=EM.makeFHEquiv(node1=FreeCAD.ActiveDocument.'+nodes[node_num].Name+',node2=FreeCAD.ActiveDocument.'+nodes[node_num+1].Name+')')
# autogrouping, for later on
#FreeCADGui.addModule("Draft")
#FreeCADGui.doCommand("Draft.autogroup(obj)")
FreeCAD.ActiveDocument.commitTransaction()
FreeCAD.ActiveDocument.recompute()
if FreeCAD.GuiUp:
FreeCADGui.addCommand('EM_FHEquiv',_CommandFHEquiv())

35
EM_FHInputFile.py
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@ -1,7 +1,10 @@
#***************************************************************************
#* *
#* Copyright (c) 2018 *
#* FastFieldSolvers S.R.L. http://www.fastfieldsolvers.com *
#* Efficient Power Conversion Corporation, Inc. http://epc-co.com *
#* *
#* Developed by FastFieldSolvers S.R.L. under contract by EPC *
#* http://www.fastfieldsolvers.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) *
@ -21,14 +24,11 @@
#* *
#***************************************************************************
__title__="FreeCAD E.M. Workbench FastHenry create input file command"
__author__ = "FastFieldSolvers S.R.L."
__url__ = "http://www.fastfieldsolvers.com"
# defines
#
EMFHINPUTFILE_DEF_FILENAME = "fasthenry_input_file.inp"
import FreeCAD, FreeCADGui, Mesh, Part, MeshPart, Draft, DraftGeomUtils, os
import EM
from FreeCAD import Vector
@ -103,22 +103,35 @@ def makeFHInputFile(doc=None,filename=None,folder=None):
nodes = [obj for obj in doc.Objects if Draft.getType(obj) == "FHNode"]
for node in nodes:
node.Proxy.serialize(fid)
# then the segments
fid.write("\n")
fid.write("* Segments\n")
# then the segments
segments = [obj for obj in doc.Objects if Draft.getType(obj) == "FHSegment"]
if segments:
fid.write("* Segments\n")
for segment in segments:
segment.Proxy.serialize(fid)
# then the .equiv
# TBC
# then the ports
fid.write("\n")
# then the planes
planes = [obj for obj in doc.Objects if Draft.getType(obj) == "FHPlane"]
if planes:
fid.write("* Planes\n")
for plane in planes:
plane.Proxy.serialize(fid)
fid.write("\n")
# then the .equiv
equivs = [obj for obj in doc.Objects if Draft.getType(obj) == "FHEquiv"]
if equivs:
fid.write("* Node shorts\n")
for equiv in equivs:
equiv.Proxy.serialize(fid)
fid.write("\n")
# then the ports
fid.write("* Ports\n")
ports = [obj for obj in doc.Objects if Draft.getType(obj) == "FHPort"]
for port in ports:
port.Proxy.serialize(fid)
# and finally the tail
fid.write("\n")
# and finally the tail
solver.Proxy.serialize(fid,"tail")
FreeCAD.Console.PrintMessage(QT_TRANSLATE_NOOP("EM","Finished exporting")+"\n")

170
EM_FHNode.py
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@ -1,7 +1,10 @@
#***************************************************************************
#* *
#* Copyright (c) 2018 *
#* FastFieldSolvers S.R.L. http://www.fastfieldsolvers.com *
#* Efficient Power Conversion Corporation, Inc. http://epc-co.com *
#* *
#* Developed by FastFieldSolvers S.R.L. under contract by EPC *
#* http://www.fastfieldsolvers.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) *
@ -21,6 +24,7 @@
#* *
#***************************************************************************
__title__="FreeCAD E.M. Workbench FastHenry Node Class"
__author__ = "FastFieldSolvers S.R.L."
__url__ = "http://www.fastfieldsolvers.com"
@ -50,12 +54,11 @@ else:
__dir__ = os.path.dirname(__file__)
iconPath = os.path.join( __dir__, 'Resources' )
def makeFHNode(baseobj=None,color=None,size=None,name='FHNode'):
def makeFHNode(baseobj=None,X=0.0,Y=0.0,Z=0.0,color=None,size=None,name='FHNode'):
'''Creates a FastHenry node ('N' statement in FastHenry)
'baseobj' is the point object on which the node is based.
If no 'baseobj' is given, the user must assign a base
object later on, to be able to use this object.
'baseobj' is the point object whose position is used as base for the FNNode
If no 'baseobj' is given, X,Y,Z are used as coordinates
Example:
TBD
@ -80,12 +83,14 @@ def makeFHNode(baseobj=None,color=None,size=None,name='FHNode'):
# check if 'baseobj' is a point (only base object allowed)
if baseobj:
if Draft.getType(baseobj) == "Point":
obj.Base = baseobj
# get the absolute coordinates of the Point
X = baseobj.Shape.Point.x
Y = baseobj.Shape.Point.y
Z = baseobj.Shape.Point.z
else:
FreeCAD.Console.PrintWarning(translate("EM","FHNodes can only be based on Point objects"))
# hide the base object
if obj.Base and FreeCAD.GuiUp:
obj.Base.ViewObject.hide()
FreeCAD.Console.PrintWarning(translate("EM","FHNodes can only take the position from Point objects"))
# set the node coordinates
obj.Proxy.setAbsCoord(Vector(X,Y,Z))
# force recompute to show the Python object
FreeCAD.ActiveDocument.recompute()
# return the newly created Python object
@ -95,7 +100,9 @@ class _FHNode:
'''The EM FastHenry Node object'''
def __init__(self, obj):
''' Add properties '''
obj.addProperty("App::PropertyLink", "Base", "EM", QT_TRANSLATE_NOOP("App::Property","The base object this component is built upon"))
obj.addProperty("App::PropertyDistance","X","EM",QT_TRANSLATE_NOOP("App::Property","X Location"))
obj.addProperty("App::PropertyDistance","Y","EM",QT_TRANSLATE_NOOP("App::Property","Y Location"))
obj.addProperty("App::PropertyDistance","Z","EM",QT_TRANSLATE_NOOP("App::Property","Z Location"))
obj.Proxy = self
self.Type = "FHNode"
# save the object in the class, to store or retrieve specific data from it
@ -105,54 +112,96 @@ class _FHNode:
def execute(self, obj):
''' this method is mandatory. It is called on Document.recompute()
'''
# check if we have a 'Base' object
if obj.Base:
# computing a shape from a base object
if obj.Base.isDerivedFrom("Part::Feature"):
# check validity
if obj.Base.Shape.isNull():
return
if not obj.Base.Shape.isValid():
return
# ok, it's valid. Let's verify if this is a Point.
if Draft.getType(obj.Base) == "Point":
shape = Part.Vertex(obj.Base.Shape)
obj.Shape = shape
#FreeCAD.Console.PrintWarning("\n_FHNode execute\n") #debug
# set the shape as a Vertex at relative position obj.X, obj.Y, obj.Z
# The vertex will then be adjusted according to the FHNode Placement
obj.Shape = Part.Vertex(self.getRelCoord())
def onChanged(self, obj, prop):
''' take action if an object property 'prop' changed
'''
#FreeCAD.Console.PrintWarning("\n_FHNode onChanged(" + str(prop)+")\n") #debug
if not hasattr(self,"Object"):
# on restore, self.Object is not there anymore
# on restore, self.Object is not there anymore (JSON does not serialize complex objects
# members of the class, so __getstate__() and __setstate__() skip them);
# so we must "re-attach" (re-create) the 'self.Object'
self.Object = obj
# if the user changed the base object
if prop == "Base":
# check if we have a 'Base' object
if obj.Base:
# computing a shape from a base object
if obj.Base.isDerivedFrom("Part::Feature"):
# check validity
if obj.Base.Shape.isNull():
return
if not obj.Base.Shape.isValid():
return
# ok, it's valid. Let's verify if this is a Point.
if Draft.getType(obj.Base) == "Point":
shape = Part.Vertex(obj.Base.Shape)
obj.Shape = shape
def serialize(self,fid):
def serialize(self,fid,extension=""):
''' Serialize the object to the 'fid' file descriptor
'fid': the file descriptor
'extension': any extension to add to the node name, in case of a node
belonging to a conductive plane. If not empty, it also changes
the way the node is serialized, according to the plane node definition.
Defaults to empty string.
'''
# check if we have a 'Base' object
if self.Object.Base:
# ok, it's valid. Let's verify if this is a Point.
if Draft.getType(self.Object.Base) == "Point":
pos = self.getAbsCoord()
if extension == "":
fid.write("N" + self.Object.Label)
fid.write(" x=" + str(self.Object.Base.X.Value) + " y=" + str(self.Object.Base.Y.Value) + " z=" + str(self.Object.Base.Z.Value))
fid.write(" x=" + str(pos.x) + " y=" + str(pos.y) + " z=" + str(pos.z))
else:
fid.write("+ N" + self.Object.Label + extension)
fid.write(" (" + str(pos.x) + "," + str(pos.y) + "," + str(pos.z) + ")")
fid.write("\n")
def getAbsCoord(self):
''' Get a FreeCAD.Vector containing the absolute node coordinates
'''
# should be "self.Object.Placement.multVec(Vector(self.Object.X, self.Object.Y, self.Object.Z))"
# but as the shape is always a Vertex, this is a shortcut
return self.Object.Shape.Point
def getRelCoord(self):
''' Get a FreeCAD.Vector containing the relative node coordinates w.r.t. the Placement
These coordinates correspond to (self.Object.X, self.Object.Y, self.Object.Z),
that are the same as self.Object.Placement.inverse().multVec(self.Object.Shape.Point))
'''
return Vector(self.Object.X,self.Object.Y,self.Object.Z)
def setRelCoord(self,rel_coord,placement=None):
''' Sets the relative node position w.r.t. the placement
'rel_coord': FreeCAD.Vector containing the relative node coordinates w.r.t. the Placement
'placement': the new placement. If 'None', the placement is not changed
Remark: the function will not recalculate() the object (i.e. change of position is not visible
just by calling this function)
'''
if placement:
# validation of the parameter
if isinstance(placement, FreeCAD.Placement):
self.Object.Placement = placement
self.Object.X = rel_coord.x
self.Object.Y = rel_coord.y
self.Object.Z = rel_coord.z
def setAbsCoord(self,abs_coord,placement=None):
''' Sets the absolute node position, considering the object placement, and in case forcing a new placement
'abs_coord': FreeCAD.Vector containing the absolute node coordinates
'placement': the new placement. If 'None', the placement is not changed
Remark: the function will not recalculate() the object (i.e. change of position is not visible
just by calling this function)
'''
if placement:
# validation of the parameter
if isinstance(placement, FreeCAD.Placement):
self.Object.Placement = placement
rel_coord = self.Object.Placement.inverse().multVec(abs_coord)
self.Object.X = rel_coord.x
self.Object.Y = rel_coord.y
self.Object.Z = rel_coord.z
def __getstate__(self):
return self.Type
def __setstate__(self,state):
if state:
self.Type = state
class _ViewProviderFHNode:
def __init__(self, obj):
''' Set this object to the proxy object of the actual view provider '''
@ -161,6 +210,10 @@ class _ViewProviderFHNode:
def attach(self, obj):
''' Setup the scene sub-graph of the view provider, this method is mandatory '''
# on restore, self.Object is not there anymore (JSON does not serialize complex objects
# members of the class, so __getstate__() and __setstate__() skip them);
# so we must "re-attach" (re-create) the 'self.Object'
self.Object = obj.Object
return
def updateData(self, fp, prop):
@ -177,20 +230,18 @@ class _ViewProviderFHNode:
''' Print the name of the property that has changed '''
#FreeCAD.Console.PrintMessage("ViewProvider onChanged(), property: " + str(prop) + "\n")
def claimChildren(self):
''' Used to place other objects as childrens in the tree'''
c = []
if hasattr(self,"Object"):
if hasattr(self.Object,"Base"):
c = [self.Object.Base]
return c
def getIcon(self):
''' Return the icon in XMP format which will appear in the tree view. This method is optional
and if not defined a default icon is shown.
'''
return os.path.join(iconPath, 'node_icon.svg')
def __getstate__(self):
return None
def __setstate__(self,state):
return None
class _CommandFHNode:
''' The EM FastHenry Node (FHNode) command definition
'''
@ -211,7 +262,7 @@ class _CommandFHNode:
if sel:
# automatic mode
import Draft
if Draft.getType(sel[0].Object) != "FHNode":
if Draft.getType(sel[0].Object) == "Point":
FreeCAD.ActiveDocument.openTransaction(translate("EM","Create FHNode"))
FreeCADGui.addModule("EM")
for selobj in sel:
@ -224,7 +275,7 @@ class _CommandFHNode:
done = True
# if no selection, or nothing good in the selected objects
if not done:
FreeCAD.DraftWorkingPlane.setup()
#FreeCAD.DraftWorkingPlane.setup()
# get a 3D point via Snapper, setting the callback functions
FreeCADGui.Snapper.getPoint(callback=self.getPoint)
@ -232,12 +283,11 @@ class _CommandFHNode:
"this function is called by the snapper when it has a 3D point"
if point == None:
return
coord = FreeCAD.DraftWorkingPlane.getLocalCoords(point)
#coord = FreeCAD.DraftWorkingPlane.getLocalCoords(point)
coord = point
FreeCAD.ActiveDocument.openTransaction(translate("EM","Create FHNode"))
FreeCADGui.addModule("EM")
FreeCADGui.doCommand('import Draft')
FreeCADGui.doCommand('base=Draft.makePoint('+str(coord.x)+','+str(coord.y)+','+str(coord.z)+')')
FreeCADGui.doCommand('obj=EM.makeFHNode(base)')
FreeCADGui.doCommand('obj=EM.makeFHNode(X='+str(coord.x)+',Y='+str(coord.y)+',Z='+str(coord.z)+')')
FreeCAD.ActiveDocument.commitTransaction()
FreeCAD.ActiveDocument.recompute()
# might improve in the future with continue command

606
EM_FHPlane.py Normal file
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@ -0,0 +1,606 @@
#***************************************************************************
#* *
#* Copyright (c) 2018 *
#* Efficient Power Conversion Corporation, Inc. http://epc-co.com *
#* *
#* Developed by FastFieldSolvers S.R.L. under contract by EPC *
#* http://www.fastfieldsolvers.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__="FreeCAD E.M. Workbench FastHenry uniform Plane Class"
__author__ = "FastFieldSolvers S.R.L."
__url__ = "http://www.fastfieldsolvers.com"
# defines
#
# default plane thickness
EMFHPLANE_DEF_THICKNESS = 0.1
# default number of segments along length
EMFHPLANE_DEF_SEG1 = 10
# default number of segments along width
EMFHPLANE_DEF_SEG2 = 10
# default plane node color
EMFHNODE_DEF_PLANENODECOLOR = (0.0,0.0,1.0)
# default plane node name extension
EMFHNODE_DEF_NODENAMEEXT = "p"
import FreeCAD, FreeCADGui, Mesh, Part, MeshPart, Draft, DraftGeomUtils, os
import numpy as np
from math import sqrt
import EM
from FreeCAD import Vector
if FreeCAD.GuiUp:
import FreeCADGui
from PySide import QtCore, QtGui
from DraftTools import translate
from PySide.QtCore import QT_TRANSLATE_NOOP
else:
# \cond
def translate(ctxt,txt, utf8_decode=False):
return txt
def QT_TRANSLATE_NOOP(ctxt,txt):
return txt
# \endcond
__dir__ = os.path.dirname(__file__)
iconPath = os.path.join( __dir__, 'Resources' )
def makeFHPlane(baseobj=None,thickness=None,seg1=None,seg2=None,nodes=[],holes=[],name='FHPlane'):
'''Creates a FastHenry uniform Plane ('G' statement in FastHenry)
'baseobj' is the object on which the node is based.
This can be a Part::Box or a Draft::Rectangle.
If no 'baseobj' is given, the user must assign a base
object later on, to be able to use this object.
Example:
TBD
'''
obj = FreeCAD.ActiveDocument.addObject("Part::FeaturePython", name)
obj.Label = translate("EM", name)
# this adds the relevant properties to the object
#'obj' (e.g. 'Base' property) making it a _FHSegment
_FHPlane(obj)
# manage ViewProvider object
if FreeCAD.GuiUp:
_ViewProviderFHPlane(obj.ViewObject)
# set base ViewObject properties to user-selected values (if any)
# check if 'nodeStart' is a FHNode, and if so, assign it as segment start node
# check if 'baseobj' is a wire (only base object allowed)
if baseobj:
if baseobj.TypeId == "Part::Box" or Draft.getType(baseobj) == "Rectangle":
obj.Base = baseobj
# if we have a Base object, we can also adopt children.
# Not possible without, otherwise we don't have a valid placement
#
# verify the list of nodes, and link the actual nodes to the plane
real_nodes = []
if len(nodes) > 0:
for node in nodes:
# get only the nodes out of the list (if this is a selection,
# it might contain other objects; we don't complain, but extract only the FHNodes)
if Draft.getType(node) == "FHNode":
real_nodes.append(node)
obj.Nodes = real_nodes
# verify the list of holes, and link the actual holes to the plane
real_holes = []
if len(holes) > 0:
for hole in holes:
# get only the holes out of the list (if this is a selection,
# it might contain other objects; we don't complain, but extract only the FHHoles)
if Draft.getType(hole) == "FHPlaneHole":
real_holes.append(hole)
obj.Holes = real_holes
else:
FreeCAD.Console.PrintWarning(translate("EM","FHPlane can only be based on Part::Box or Plane::Rectangle objects"))
if thickness:
if thickness > 0.0:
# using a conversion and not catching errors, for input validation
obj.Thickness = float(thickness)
else:
FreeCAD.Console.PrintWarning(translate("EM","FHPlane thickness parameter must be strictly positive"))
if seg1:
if seg1 > 0.0:
# using a conversion and not catching errors, for input validation
obj.seg1 = int(seg1)
else:
FreeCAD.Console.PrintWarning(translate("EM","FHPlane seg1 parameter must be strictly positive"))
if seg2:
if seg2 > 0.0:
# using a conversion and not catching errors, for input validation
obj.seg2 = int(seg2)
else:
FreeCAD.Console.PrintWarning(translate("EM","FHPlane seg2 parameter must be strictly positive"))
# hide the base object
if obj.Base and FreeCAD.GuiUp:
obj.Base.ViewObject.hide()
# return the newly created Python object
return obj
class _FHPlane:
'''The EM FastHenry uniform Plane object'''
def __init__(self, obj):
''' Add properties '''
obj.addProperty("App::PropertyLink", "Base", "EM", QT_TRANSLATE_NOOP("App::Property","The base object this component is built upon"))
obj.addProperty("App::PropertyLength","Thickness","EM",QT_TRANSLATE_NOOP("App::Property","Plane thickness ('thick' plane parameter)"))
obj.addProperty("App::PropertyInteger","seg1","EM",QT_TRANSLATE_NOOP("App::Property","Number of segments along the length direction ('seg1' plane parameter)"))
obj.addProperty("App::PropertyInteger","seg2","EM",QT_TRANSLATE_NOOP("App::Property","Number of segments along the width direction ('seg2' plane parameter)"))
obj.addProperty("App::PropertyInteger","nhinc","EM",QT_TRANSLATE_NOOP("App::Property","Number of filaments along the plane thickness ('nhinc' plane parameter)"))
obj.addProperty("App::PropertyInteger","rh","EM",QT_TRANSLATE_NOOP("App::Property","Ratio of adjacent filaments along the thickness ('rh' plane parameter)"))
obj.addProperty("App::PropertyFloat","Sigma","EM",QT_TRANSLATE_NOOP("App::Property","Plane conductivity ('sigma' plane parameter)"))
obj.addProperty("App::PropertyLength","segwid1","EM",QT_TRANSLATE_NOOP("App::Property","Width of segments along the plane length direction ('segwid1' plane parameter)"))
obj.addProperty("App::PropertyLength","segwid2","EM",QT_TRANSLATE_NOOP("App::Property","Width of segments along the plane width direction ('segwid2' plane parameter)"))
obj.addProperty("App::PropertyLinkList","Nodes","EM",QT_TRANSLATE_NOOP("App::Property","Nodes for connections to the plane"))
obj.addProperty("App::PropertyLinkList","Holes","EM",QT_TRANSLATE_NOOP("App::Property","Holes in the plane"))
obj.addProperty("App::PropertyBool","FineMesh","Component",QT_TRANSLATE_NOOP("App::Property","Specifies if this the plane fine mesh is shown (i.e. composing segments)"))
obj.Proxy = self
self.Type = "FHPlane"
self.FineMesh = False
# save the object in the class, to store or retrieve specific data from it
# from within the class
self.Object = obj
def execute(self, obj):
''' this method is mandatory. It is called on Document.recompute()
'''
#FreeCAD.Console.PrintWarning("\n_FHPlane execute\n") #debug
if obj.Thickness == None or obj.Thickness <= 0:
obj.Thickness = EMFHPLANE_DEF_THICKNESS
if obj.seg1 == None or obj.seg1 <= 0:
obj.seg1 = EMFHPLANE_DEF_SEG1
if obj.seg2 == None or obj.seg2 <= 0:
obj.seg2 = EMFHPLANE_DEF_SEG2
# check if we have a 'Base' object; if not, cannot assign a shape
shape = None
if obj.Base:
# if right type of base
if obj.Base.isDerivedFrom("Part::Feature"):
# check validity
if obj.Base.Shape.isNull():
return
if not obj.Base.Shape.isValid():
return
# ok, 'Base' is valid. Go on.
#
# Part::Box and Draft::Rectangle define the Plane width through
# a different property. For the Box it is the Width, but for the
# Rectangle this is the Height
if obj.Base.TypeId == "Part::Box":
width = obj.Base.Width.Value
# Also, if Part::Box, set the Plane thickness
# to the Box thickness, no matter what the user entered as 'Thickness'
obj.Thickness = obj.Base.Height
elif Draft.getType(obj.Base) == "Rectangle":
width = obj.Base.Height.Value
else:
FreeCAD.Console.PrintWarning(translate("EM","Plane Base object is not a Part::Box nor a Draft::Rectangle"))
return
# The length property is instead the same for the Box and the Rectangle alike
length = obj.Base.Length.Value
# And thickness has been set, can get it
thickness = obj.Thickness.Value
# Let's calculate the segments width
segwid1 = width / obj.seg2
segwid2 = length / obj.seg1
# if the user specified a different segment width, assign it to the segments, unless
# the specified width is larger than the segment width needed to completely
# fill up the plane. In this case reset 'segwid1' to this width.
if obj.segwid1 > 0:
if obj.segwid1 < segwid1:
segwid1 = obj.segwid1.Value
else:
obj.segwid1 = segwid1
FreeCAD.Console.PrintWarning(translate("EM","Plane segwid1 would cause segments overlap, re-setting segwid1 to the maximum possible"))
if obj.segwid2 > 0:
if obj.segwid2 < segwid2:
segwid2 = obj.segwid2.Value
else:
obj.segwid2 = segwid2
FreeCAD.Console.PrintWarning(translate("EM","Plane segwid2 would cause segments overlap, re-setting segwid2 to the maximum possible"))
# if needed, apply the same Placement of the Base object to the FHPlane object
if obj.Placement <> obj.Base.Placement:
obj.Placement = obj.Base.Placement
# Start node and hole repositioning in relative coordinate system of the conductive plane
#
# These nodes have already been adopted by the plane, if they are in the obj.Nodes list;
# therefore, must just make sure they track the plane placement. Also, this assures
# that once a node is child of a plane, it cannot be moved independently by changing
# its placement
for node in obj.Nodes:
if node.Placement <> obj.Placement:
node.Placement = obj.Placement
# These holes have already been adopted by the plane, if they are in the obj.Holes list;
# therefore, must just make sure they track the plane placement. Also, this assures
# that once a hole is child of a plane, it cannot be moved independently by changing
# its placement
for hole in obj.Holes:
if hole.Placement <> obj.Placement:
hole.Placement = obj.Placement
# Check if the user selected a coarse or a fine mesh.
if obj.FineMesh == False:
# Now we can define the coarse shape. A uniform plane will extend half-a-segment
# beyond the boundaries of the plane definition.
# Therefore, we'll make two box shapes, crossing over each other.
#
# Extend half segwid1 on both y sides
# makeBox(length, width, height, point, direction)
boxshape1 = Part.makeBox(length,width+segwid1,thickness,Vector(0,-segwid1/2,0))
# Extend half segwid2 on both x sides
# makeBox(length, width, height, point, direction)
boxshape2 = Part.makeBox(length+segwid2,width,thickness,Vector(-segwid2/2,0,0))
# create the compound object
shape = Part.makeCompound([boxshape1,boxshape2])
else:
shape = self.makeFinePlane(obj,length,width,thickness,segwid1,segwid2)
# and finally assign the shape
if shape:
obj.Shape = shape
def adoptNode(self,node):
''' Adopt a node in the FHPlane
'node': FHNode object
The placement is changed to be relative to the plane coordinate system.
The color of the node will be changed, to show that this is a FHPlane node
'''
# must now keep the node in the same absolute position, but making the position
# relative to the plane coordinate system
abs_pos = node.Proxy.getAbsCoord()
node.Proxy.setAbsCoord(abs_pos,self.Object.Base.Placement)
node.ViewObject.PointColor = EMFHNODE_DEF_PLANENODECOLOR
def adoptHole(self,hole):
''' Adopt a hole in the FHPlane
'hole': FHPlaneHole object
The placement is changed to be relative to the plane coordinate system.
'''
# must now keep the node in the same absolute position, but making the position
# relative to the plane coordinate system
abs_pos = hole.Proxy.getAbsCoord()
hole.Proxy.setAbsCoord(abs_pos,self.Object.Base.Placement)
def makeFinePlane(self,obj,length,width,thickness,segwid1,segwid2):
''' Compute a fine mesh plane shape given:
TBD
TBD
'n1': start node position (Vector)
'n2': end node position (Vector)
'width': segment width
'height': segment height
'ww': cross-section direction (along width)
The plane is assumed to lie in the standard default position (default Placement)
(with the Placement.Base in the origin, no rotation, and length along x, width along y, thickness along z)
Its placement will be moved and rotated by the caller.
'''
segments=[]
# prepare the array of the internal nodes of the plane. 'True' means that the node
# exists, i.e. has not been removed due to holes in the plane.
# The number of nodes is equal to the number of segments along the edge plus one;
# (note that 'obj.seg1' refers to the # of segment parallel to the length, 'obj.seg2' parallel to the width)
nodes=np.full((obj.seg1+1,obj.seg2+1), True, np.bool)
# find segment lengths
seg1len=length/obj.seg1
seg2len=width/obj.seg2
#
# debug
for seg1 in range(obj.seg1+1):
for seg2 in range(obj.seg2+1):
shape = Part.Vertex(Vector(seg1len*seg1,seg2len*seg2,-0.1))
segments.append(shape)
# end debug
#
# now process the holes
for hole in obj.Holes:
if hole.Type == 'Point':
seg1seg2pos = self.findNearestNode(hole.X, hole.Y, obj, seg1len, seg2len)
# mark the node as deleted
nodes[seg1seg2pos] = False
elif hole.Type == 'Rect':
seg1seg2corner1 = self.findNearestNode(hole.X, hole.Y, obj, seg1len, seg2len)
seg1seg2corner2 = self.findNearestNode(hole.X + hole.Length, hole.Y + hole.Width, obj, seg1len, seg2len)
# hole.Length and hole.Width may be negative. Must check which comes first
if seg1seg2corner1[0] <= seg1seg2corner2[0]:
xstart = seg1seg2corner1[0]
xend = seg1seg2corner2[0]
else:
xstart = seg1seg2corner2[0]
xend = seg1seg2corner1[0]
if seg1seg2corner1[1] <= seg1seg2corner2[1]:
ystart = seg1seg2corner1[1]
yend = seg1seg2corner2[1]
else:
ystart = seg1seg2corner2[1]
yend = seg1seg2corner1[1]
# mark the nodes as deleted
nodes[xstart:xend+1,ystart:yend+1] = False
elif hole.Type == 'Circle':
seg1seg2pos = self.findNearestNode(hole.X, hole.Y, obj, seg1len, seg2len)
# find the offset between the center of the circle and the actual nearest plane node node
offsetX = seg1seg2pos[0]*seg1len - hole.X.Value
offsetY = seg1seg2pos[1]*seg2len - hole.Y.Value
# check if the offset is larger than the radius
if abs(offsetX) > hole.Radius.Value or abs(offsetY) > hole.Radius.Value:
FreeCAD.Console.PrintWarning(translate("EM","Circular hole offset w.r.t. the nearest node plane is greater than hole radius. Hole not performed."))
# 'nodes_up' and 'nodes_down' are the (relative) number of hole nodes along plane width
# we will then step from 'nodes_down' to 'nodes_up' and for each of these values
# we will calculate the (relative) extent from 'nodes_left' to 'node_right' along the length
# corresponding to the hole radius and we will remove all the contained nodes
nodes_up = int( (hole.Radius.Value - offsetY)/seg2len)
nodes_down = int( (-hole.Radius.Value - offsetY)/seg2len)
for nodeY in range(nodes_down,nodes_up+1):
side = sqrt(hole.Radius.Value**2 - (offsetY+nodeY*seg2len)**2)
nodes_left = int( (-side - offsetX)/seg1len)
nodes_right = int( (side - offsetX)/seg1len)
for nodeX in range(nodes_left,nodes_right+1):
# delete node, but only if internal to the plane!
if nodeY+seg1seg2pos[1] >= 0 and nodeY+seg1seg2pos[1] <= obj.seg2 and nodeX+seg1seg2pos[0] >= 0 and nodeX+seg1seg2pos[1] <= obj.seg1:
nodes[nodeX+seg1seg2pos[0], nodeY+seg1seg2pos[1]] = False
else:
FreeCAD.Console.PrintWarning(translate("EM","Unknown hole type in the FHPlane!"))
# layout segments along plane length
for seg2 in range(obj.seg2+1):
for seg1 in range(obj.seg1):
# if both starting and ending nodes exist
if nodes[seg1][seg2] and nodes[seg1+1][seg2]:
# makeBox(length, width, height, point, direction)
boxshape = Part.makeBox(seg1len,segwid1,thickness,Vector(seg1len*seg1,-segwid1/2+seg2len*seg2,0))
segments.append(boxshape)
# layout segments along plane width
for seg1 in range(obj.seg1+1):
for seg2 in range(obj.seg2):
# if both starting and ending nodes exist
if nodes[seg1][seg2] and nodes[seg1][seg2+1]:
# makeBox(length, width, height, point, direction)
boxshape = Part.makeBox(segwid2,seg2len,thickness,Vector(-segwid2/2+seg1len*seg1,seg2len*seg2,0))
segments.append(boxshape)
shape = Part.makeCompound(segments)
return shape
def findNearestNode(self,x_coord,y_coord,obj,seg1len,seg2len):
''' find the plane node nearest to the given point (in local plane coordinates)
'x_coord' and 'y_coord' are the point coordinates, of type Base.Quantity
'obj' is the FHPlane object
'seg1len' and 'seg2len' are the lengths of the segments along the lenght and width, respectively
'''
# as we cast to int, + 0.5 is used to approximate to the next larger int
# if greater than x.5 and to the previous smaller int otherwise
nodeX = int(x_coord.Value/seg1len + 0.5)
nodeY = int(y_coord.Value/seg2len + 0.5)
# assure that the node is on the plane
if nodeX < 0:
nodeX = 0
elif nodeX > obj.seg1:
nodeX = obj.seg1
if nodeY < 0:
nodeY = 0
elif nodeY > obj.seg2:
nodeY = obj.seg2
return (nodeX,nodeY)
def onChanged(self, obj, prop):
''' take action if an object property 'prop' changed
'''
#FreeCAD.Console.PrintWarning("\n_FHPlane onChanged(" + str(prop)+")\n") #debug
if not hasattr(self,"Object"):
# on restore, self.Object is not there anymore (JSON does not serialize complex objects
# members of the class, so __getstate__() and __setstate__() skip them);
# so we must "re-attach" (re-create) the 'self.Object'
self.Object = obj
if prop == "Nodes":
for node in obj.Nodes:
self.adoptNode(node)
if prop == "Holes":
for hole in obj.Holes:
self.adoptHole(hole)
def serialize(self,fid):
''' Serialize the object to the 'fid' file descriptor
'''
if not self.Object.Base:
FreeCAD.Console.PrintWarning(translate("EM","No Plane Base object set. Cannot serialize the object.\n"))
return
# must retrieve the three corners in clockwise order from the self.Object.Base
# parameters (Position and dimensions)
if self.Object.Base.TypeId == "Part::Box":
width = self.Object.Base.Width.Value
elif Draft.getType(self.Object.Base) == "Rectangle":
width = self.Object.Base.Height.Value
else:
FreeCAD.Console.PrintWarning(translate("EM","Plane Base object is not a Part::Box nor a Draft::Rectangle. Cannot serialize the object.\n"))
return
# These two properties are instead the same for the Box and the Rectangle alike
length = self.Object.Base.Length.Value
placement = self.Object.Base.Placement
# plus height (thickness)
height = self.Object.Thickness.Value
planeOrigin = placement.Base
# plane versors. 'vx' is along length, 'vy' is along width, 'vz' is along height (thickness)
vx = (placement.multVec(Vector(1,0,0))-planeOrigin).normalize()
vy = (placement.multVec(Vector(0,1,0))-planeOrigin).normalize()
vz = (placement.multVec(Vector(0,0,1))-planeOrigin).normalize()
# compute the corners
corner = []
corner.append(planeOrigin + vz*(height/2))
corner.append(corner[0] + vx*length)
corner.append(corner[1] + vy*width)
# now output plane parameters
fid.write("G" + self.Object.Label + " x1=" + str(corner[0].x) + " y1=" + str(corner[0].y) + " z1=" + str(corner[0].z))
fid.write(" x2=" + str(corner[1].x) + " y2=" + str(corner[1].y) + " z2=" + str(corner[1].z) + "\n")
fid.write("+ x3=" + str(corner[2].x) + " y3=" + str(corner[2].y) + " z3=" + str(corner[2].z) + "\n")
fid.write("+ thick=" + str(height) + " seg1=" + str(self.Object.seg1) + " seg2=" + str(self.Object.seg2) + "\n")
if self.Object.segwid1 > 0:
fid.write("+ segwid1=" + str(self.Object.segwid1) + "\n")
if self.Object.segwid2 > 0:
fid.write("+ segwid2=" + str(self.Object.segwid2) + "\n")
if self.Object.Sigma > 0:
fid.write("+ sigma=" + str(self.Object.Sigma) + "\n")
if self.Object.nhinc > 0:
fid.write("+ nhinc=" + str(self.Object.nhinc) + "\n")
if self.Object.rh > 0:
fid.write("+ rh=" + str(self.Object.rh) + "\n")
# Output the plane exposed nodes
# Nstr (x_val,y_val,z_val)
if len(self.Object.Nodes) > 0:
for node in self.Object.Nodes:
# plane nodes are special nodes. We assume that a node 'N' definition already exist
# with the 'node.Label'; so we define an internal plane node with the same name
# but with an additional extension, and then we'll '.equiv' the two
node.Proxy.serialize(fid, EMFHNODE_DEF_NODENAMEEXT)
# hole <hole-type> (val1,val2,....)
# hole point (x,y,z)
# hole rect (x1,y1,z1,x2,y2,z2)
# hole circle (x,y,z,r)
if len(self.Object.Holes) > 0:
for hole in self.Object.Holes:
hole.Proxy.serialize(fid)
fid.write("\n")
if len(self.Object.Nodes) > 0:
fid.write("* Connecting internal plane nodes to actual nodes\n")
for node in self.Object.Nodes:
fid.write(".equiv N" + node.Label + " N" + node.Label + EMFHNODE_DEF_NODENAMEEXT + "\n")
fid.write("\n")
def __getstate__(self):
return self.Type
def __setstate__(self,state):
if state:
self.Type = state
class _ViewProviderFHPlane:
def __init__(self, obj):
''' Set this object to the proxy object of the actual view provider '''
obj.Proxy = self
self.Object = obj.Object
def attach(self, obj):
''' Setup the scene sub-graph of the view provider, this method is mandatory '''
# on restore, self.Object is not there anymore (JSON does not serialize complex objects
# members of the class, so __getstate__() and __setstate__() skip them);
# so we must "re-attach" (re-create) the 'self.Object'
self.Object = obj.Object
return
def updateData(self, fp, prop):
''' Print the name of the property that has changed '''
#FreeCAD.Console.PrintMessage("ViewProvider updateData(), property: " + str(prop) + "\n")
''' If a property of the handled feature has changed we have the chance to handle this here '''
return
def getDefaultDisplayMode(self):
''' Return the name of the default display mode. It must be defined in getDisplayModes. '''
return "Flat Lines"
def onChanged(self, vp, prop):
''' Print the name of the property that has changed '''
#FreeCAD.Console.PrintMessage("ViewProvider onChanged(), property: " + str(prop) + "\n")
def claimChildren(self):
''' Used to place other objects as childrens in the tree'''
c = []
if hasattr(self,"Object"):
if hasattr(self.Object,"Base"):
c.append(self.Object.Base)
if hasattr(self.Object,"Nodes"):
c.extend(self.Object.Nodes)
if hasattr(self.Object,"Holes"):
c.extend(self.Object.Holes)
return c
def getIcon(self):
''' Return the icon in XMP format which will appear in the tree view. This method is optional
and if not defined a default icon is shown.
'''
return os.path.join(iconPath, 'plane_icon.svg')
def __getstate__(self):
return None
def __setstate__(self,state):
return None
class _CommandFHPlane:
''' The EM FastHenry uniform Plane (FHPlane) command definition
'''
def GetResources(self):
return {'Pixmap' : os.path.join(iconPath, 'plane_icon.svg') ,
'MenuText': QT_TRANSLATE_NOOP("EM_FHPlane","FHPlane"),
'Accel': "E, P",
'ToolTip': QT_TRANSLATE_NOOP("EM_FHPlane","Creates a FastHenry uniform Plane object from scratch or from a selected base object (Part::Box or Draft::Rectangle)")}
def IsActive(self):
return not FreeCAD.ActiveDocument is None
def Activated(self):
# init properties (future)
#self.Length = None
# preferences
#p = FreeCAD.ParamGet("User parameter:BaseApp/Preferences/Mod/EM")
#self.Width = p.GetFloat("Width",200)
# get the selected object(s)
selection = FreeCADGui.Selection.getSelectionEx()
base = None
nodes = []
holes = []
# if selection is not empty
for selobj in selection:
# automatic mode
if selobj.Object.TypeId == "Part::Box" or Draft.getType(selobj.Object) == "Rectangle":
if not base:
base = selobj.Object
else:
FreeCAD.Console.PrintWarning(translate("EM","More than one Part::Box or Draft::Rectangle selected. Using the first one as FHPlane Base object.\n"))
elif Draft.getType(selobj.Object) == "FHNode":
nodes.append(selobj.Object)
elif Draft.getType(selobj.Object) == "FHPlaneHole":
holes.append(selobj.Object)
if base:
FreeCAD.ActiveDocument.openTransaction(translate("EM","Create FHPlane"))
FreeCADGui.addModule("EM")
FreeCADGui.doCommand('nodeList=[]')
for node in nodes:
FreeCADGui.doCommand('nodeList.append(FreeCAD.ActiveDocument.'+node.Name+')')
FreeCADGui.doCommand('holeList=[]')
for hole in holes:
FreeCADGui.doCommand('holeList.append(FreeCAD.ActiveDocument.'+hole.Name+')')
FreeCADGui.doCommand('obj=EM.makeFHPlane(FreeCAD.ActiveDocument.'+base.Name+',nodes=nodeList,holes=holeList)')
# autogrouping, for later on
#FreeCADGui.addModule("Draft")
#FreeCADGui.doCommand("Draft.autogroup(obj)")
FreeCAD.ActiveDocument.commitTransaction()
FreeCAD.ActiveDocument.recompute()
# this is not a mistake. The double recompute() is needed to show the new FHNode positions
# have been updated by the first execute(), called upon the first recompute()
FreeCAD.ActiveDocument.recompute()
# if no selection, or nothing good in the selected objects
else:
FreeCAD.Console.PrintWarning(translate("EM","No base Part::Box or Draft::Rectangle selected. Cannot create a FHPlane.\n"))
if FreeCAD.GuiUp:
FreeCADGui.addCommand('EM_FHPlane',_CommandFHPlane())

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#***************************************************************************
#* *
#* Copyright (c) 2018 *
#* Efficient Power Conversion Corporation, Inc. http://epc-co.com *
#* *
#* Developed by FastFieldSolvers S.R.L. under contract by EPC *
#* http://www.fastfieldsolvers.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__="FreeCAD E.M. Workbench FastHenry Plane Hole Class"
__author__ = "FastFieldSolvers S.R.L."
__url__ = "http://www.fastfieldsolvers.com"
# defines
#
# default node color
EMFHPLANEHOLE_TYPES = ["Point", "Rect", "Circle"]
EMFHPLANEHOLE_DEFTYPE = "Point"
import FreeCAD, FreeCADGui, Mesh, Part, MeshPart, Draft, DraftGeomUtils, os
from FreeCAD import Vector
if FreeCAD.GuiUp:
import FreeCADGui
from PySide import QtCore, QtGui
from DraftTools import translate
from PySide.QtCore import QT_TRANSLATE_NOOP
else:
# \cond
def translate(ctxt,txt, utf8_decode=False):
return txt
def QT_TRANSLATE_NOOP(ctxt,txt):
return txt
# \endcond
__dir__ = os.path.dirname(__file__)
iconPath = os.path.join( __dir__, 'Resources' )
def makeFHPlaneHole(baseobj=None,X=0.0,Y=0.0,Z=0.0,holetype=None,length=None,width=None,radius=None,name='FHPlaneHole'):
'''Creates a FastHenry conductive plane hole (within a uniform plane 'G' statement in FastHenry)
'baseobj' is the point object on which the node is based.
If no 'baseobj' is given, the user must assign a base
object later on, to be able to use this object.
The FHPlaneHole has to be used only within a FHPlane object. The FHPlaneHole
will be taken as child by the FHPlane.
Example:
TBD
'''
obj = FreeCAD.ActiveDocument.addObject("Part::FeaturePython", name)
obj.Label = translate("EM", name)
# this adds the relevant properties to the object
#'obj' (e.g. 'Base' property) making it a _FHNode
_FHPlaneHole(obj)
# manage ViewProvider object
if FreeCAD.GuiUp:
_ViewProviderFHPlaneHole(obj.ViewObject)
# set base ViewObject properties to user-selected values (if any)
# check if 'baseobj' is a point (only base object allowed)
if baseobj:
if Draft.getType(baseobj) == "Point":
# get the absolute coordinates of the Point
X = baseobj.Shape.Point.x
Y = baseobj.Shape.Point.y
Z = baseobj.Shape.Point.z
else:
FreeCAD.Console.PrintWarning(translate("EM","FHPlaneHole can only take the position from Point objects"))
if holetype:
if holetype in EMFHPLANEHOLE_TYPES:
obj.Type = holetype
else:
FreeCAD.Console.PrintWarning(translate("EM","FHPlaneHole unknown hole type"))
else:
obj.Type = EMFHPLANEHOLE_DEFTYPE
if length:
# using a conversion and not catching errors, for input validation
obj.Length = float(length)
if width:
# using a conversion and not catching errors, for input validation
obj.Width = float(width)
if radius:
# using a conversion and not catching errors, for input validation
obj.Radius = float(radius)
# set the hole reference point coordinates
obj.Proxy.setAbsCoord(Vector(X,Y,Z))
# force recompute to show the Python object
FreeCAD.ActiveDocument.recompute()
# return the newly created Python object
return obj
class _FHPlaneHole:
'''The EM FastHenry plane hole object'''
def __init__(self, obj):
''' Add properties '''
obj.addProperty("App::PropertyDistance","X","EM",QT_TRANSLATE_NOOP("App::Property","X Location"))
obj.addProperty("App::PropertyDistance","Y","EM",QT_TRANSLATE_NOOP("App::Property","Y Location"))
obj.addProperty("App::PropertyDistance","Z","EM",QT_TRANSLATE_NOOP("App::Property","Z Location"))
obj.addProperty("App::PropertyLength","Length","EM",QT_TRANSLATE_NOOP("App::Property","Rectangular hole length (along x from node base point)"))
obj.addProperty("App::PropertyLength","Width","EM",QT_TRANSLATE_NOOP("App::Property","Rectangular hole width (along y from node base point)"))
obj.addProperty("App::PropertyLength","Radius","EM",QT_TRANSLATE_NOOP("App::Property","Circular hole radius"))
obj.addProperty("App::PropertyEnumeration","Type","EM",QT_TRANSLATE_NOOP("App::Property","The type of FastHenry plane hole"))
obj.Proxy = self
self.Type = "FHPlaneHole"
# save the object in the class, to store or retrieve specific data from it
# from within the class
self.Object = obj
obj.Type = EMFHPLANEHOLE_TYPES
def execute(self, obj):
''' this method is mandatory. It is called on Document.recompute()
'''
# create a shape corresponding to the type of hole
shape = None
if obj.Type == "Point":
# set the shape as a Vertex at relative position obj.X, obj.Y, obj.Z
# The shape will then be adjusted according to the object Placement
shape = Part.Vertex(self.getRelCoord())
elif obj.Type == "Rect":
if obj.Length <= 0 or obj.Width <= 0:
FreeCAD.Console.PrintWarning(translate("EM","Cannot create a FHPlaneHole rectangular hole with zero length or width"))
else:
v0 = self.getRelCoord()
v1 = v0 + Vector(obj.Length,0,0)
v2 = v0 + Vector(obj.Length,obj.Width,0)
v3 = v0 + Vector(0,obj.Width,0)
# and create the rectangle
poly = Part.makePolygon( [v0,v1,v2,v3,v0])
shape = Part.Face(poly)
elif obj.Type == "Circle":
if obj.Radius <= 0:
FreeCAD.Console.PrintWarning(translate("EM","Cannot create a FHPlaneHole circular hole with zero radius"))
else:
# create a circle in the x,y plane (axis is along z)
circle = Part.Circle(self.getRelCoord(),Vector(0,0,1),obj.Radius)
edge = circle.toShape()
wire = Part.Wire(edge)
shape = Part.Face(wire)
if shape:
obj.Shape = shape
def onChanged(self, obj, prop):
''' take action if an object property 'prop' changed
'''
#FreeCAD.Console.PrintWarning("\n_FHPlaneHole onChanged(" + str(prop)+")\n") #debug
if not hasattr(self,"Object"):
# on restore, self.Object is not there anymore (JSON does not serialize complex objects
# members of the class, so __getstate__() and __setstate__() skip them);
# so we must "re-attach" (re-create) the 'self.Object'
self.Object = obj
def serialize(self,fid):
''' Serialize the object to the 'fid' file descriptor
'''
pos = self.getAbsCoord()
if self.Object.Type == "Point":
# hole point (x,y,z)
fid.write("+ hole point (" + str(pos.x) + "," + str(pos.y) + "," + str(pos.z) + ")")
elif self.Object.Type == "Rect":
# calculate the position of the second point defining the rectangle
#
# if the hole is on a plane, its placement corresponds to the FHPlane placement
# (it is assigned by the FHPlane, when it takes the FHPlaneHole as child)
placement = self.Object.Placement
planeOrigin = placement.Base
# plane versors. 'vx' is along length, 'vy' is along width
vx = (placement.multVec(Vector(1,0,0))-planeOrigin).normalize()
vy = (placement.multVec(Vector(0,1,0))-planeOrigin).normalize()
# compute the opposite corner position
point2 = pos + vx*self.Object.Length.Value + vy*self.Object.Width.Value
# hole rect (x1,y1,z1,x2,y2,z2)
fid.write("+ hole rect (" + str(pos.x) + "," + str(pos.y) + "," + str(pos.z) + ",")
fid.write(str(point2.x) + "," + str(point2.y) + "," + str(point2.z) + ")\n")
elif self.Object.Type == "Circle":
# hole circle (x,y,z,r)
fid.write("+ hole circle (" + str(pos.x) + "," + str(pos.y) + "," + str(pos.z) + "," + str(self.Object.Radius.Value) + ")")
fid.write("\n")
def getAbsCoord(self):
''' Get a FreeCAD.Vector containing the absolute reference point coordinates
'''
return self.Object.Placement.multVec(Vector(self.Object.X, self.Object.Y, self.Object.Z))
def getRelCoord(self):
''' Get a FreeCAD.Vector containing the relative reference point coordinates w.r.t. the Placement
These coordinates correspond to (self.Object.X, self.Object.Y, self.Object.Z),
that are the same as self.Object.Placement.inverse().multVec(reference_point_pos))
'''
return Vector(self.Object.X,self.Object.Y,self.Object.Z)
def setRelCoord(self,rel_coord,placement=None):
''' Sets the relative reference point position w.r.t. the placement
'rel_coord': FreeCAD.Vector containing the relative reference point coordinates w.r.t. the Placement
'placement': the new placement. If 'None', the placement is not changed
Remark: the function will not recalculate() the object (i.e. change of position is not visible
just by calling this function)
'''
if placement:
# validation of the parameter
if isinstance(placement, FreeCAD.Placement):
self.Object.Placement = placement
self.Object.X = rel_coord.x
self.Object.Y = rel_coord.y
self.Object.Z = rel_coord.z
def setAbsCoord(self,abs_coord,placement=None):
''' Sets the absolute reference point position, considering the object placement, and in case forcing a new placement
'abs_coord': FreeCAD.Vector containing the absolute reference point coordinates
'placement': the new placement. If 'None', the placement is not changed
Remark: the function will not recalculate() the object (i.e. change of position is not visible
just by calling this function)
'''
if placement:
# validation of the parameter
if isinstance(placement, FreeCAD.Placement):
self.Object.Placement = placement
rel_coord = self.Object.Placement.inverse().multVec(abs_coord)
self.Object.X = rel_coord.x
self.Object.Y = rel_coord.y
self.Object.Z = rel_coord.z
def __getstate__(self):
return self.Type
def __setstate__(self,state):
if state:
self.Type = state
class _ViewProviderFHPlaneHole:
def __init__(self, obj):
''' Set this object to the proxy object of the actual view provider '''
obj.Proxy = self
self.Object = obj.Object
def attach(self, obj):
''' Setup the scene sub-graph of the view provider, this method is mandatory '''
# on restore, self.Object is not there anymore (JSON does not serialize complex objects
# members of the class, so __getstate__() and __setstate__() skip them);
# so we must "re-attach" (re-create) the 'self.Object'
self.Object = obj.Object
return
def updateData(self, fp, prop):
''' Print the name of the property that has changed '''
#FreeCAD.Console.PrintMessage("ViewProvider updateData(), property: " + str(prop) + "\n")
''' If a property of the handled feature has changed we have the chance to handle this here '''
return
def getDefaultDisplayMode(self):
''' Return the name of the default display mode. It must be defined in getDisplayModes. '''
return "Flat Lines"
def onChanged(self, vp, prop):
''' Print the name of the property that has changed '''
#FreeCAD.Console.PrintMessage("ViewProvider onChanged(), property: " + str(prop) + "\n")
def getIcon(self):
''' Return the icon in XMP format which will appear in the tree view. This method is optional
and if not defined a default icon is shown.
'''
return os.path.join(iconPath, 'planehole_icon.svg')
def __getstate__(self):
return None
def __setstate__(self,state):
return None
class _CommandFHPlaneHole:
''' The EM FastHenry conductive plane hole (FHPlaneHole) command definition
'''
def GetResources(self):
return {'Pixmap' : os.path.join(iconPath, 'planehole_icon.svg') ,
'MenuText': QT_TRANSLATE_NOOP("EM_FHPlaneHole","FHPlaneHole"),
'Accel': "E, H",
'ToolTip': QT_TRANSLATE_NOOP("EM_FHPlaneHole","Creates a FastHenry conductive plane Hole object from scratch or from a selected object (point)")}
def IsActive(self):
return not FreeCAD.ActiveDocument is None
def Activated(self):
# get the selected object(s)
sel = FreeCADGui.Selection.getSelectionEx()
done = False
# if selection is not empty
if sel:
# automatic mode
import Draft
if Draft.getType(sel[0].Object) == "Point":
FreeCAD.ActiveDocument.openTransaction(translate("EM","Create FHPlaneHole"))
FreeCADGui.addModule("EM")
for selobj in sel:
FreeCADGui.doCommand('obj=EM.makeFHPlaneHole(FreeCAD.ActiveDocument.'+selobj.Object.Name+')')
# autogrouping, for later on
#FreeCADGui.addModule("Draft")
#FreeCADGui.doCommand("Draft.autogroup(obj)")
FreeCAD.ActiveDocument.commitTransaction()
FreeCAD.ActiveDocument.recompute()
done = True
# if no selection, or nothing good in the selected objects
if not done:
#FreeCAD.DraftWorkingPlane.setup()
# get a 3D point via Snapper, setting the callback functions
FreeCADGui.Snapper.getPoint(callback=self.getPoint)
def getPoint(self,point=None,obj=None):
"this function is called by the snapper when it has a 3D point"
if point == None:
return
coord = FreeCAD.DraftWorkingPlane.getLocalCoords(point)
FreeCAD.ActiveDocument.openTransaction(translate("EM","Create FHPlaneHole"))
FreeCADGui.addModule("EM")
FreeCADGui.doCommand('obj=EM.makeFHPlaneHole(X='+str(coord.x)+',Y='+str(coord.y)+',Z='+str(coord.z)+')')
FreeCAD.ActiveDocument.commitTransaction()
FreeCAD.ActiveDocument.recompute()
# might improve in the future with continue command
#if self.continueCmd:
# self.Activated()
if FreeCAD.GuiUp:
FreeCADGui.addCommand('EM_FHPlaneHole',_CommandFHPlaneHole())

36
EM_FHPort.py
View File

@ -1,7 +1,10 @@
#***************************************************************************
#* *
#* Copyright (c) 2018 *
#* FastFieldSolvers S.R.L. http://www.fastfieldsolvers.com *
#* Efficient Power Conversion Corporation, Inc. http://epc-co.com *
#* *
#* Developed by FastFieldSolvers S.R.L. under contract by EPC *
#* http://www.fastfieldsolvers.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) *
@ -22,6 +25,7 @@
#***************************************************************************
__title__="FreeCAD E.M. Workbench FastHenry Port Class"
__author__ = "FastFieldSolvers S.R.L."
__url__ = "http://www.fastfieldsolvers.com"
@ -108,13 +112,13 @@ class _FHPort:
if obj.NodeStart == obj.NodeEnd:
FreeCAD.Console.PrintWarning(translate("EM","NodeStart and NodeEnd coincide. Cannot create a port."))
return
# and finally, if everything is ok, make and assing the shape
# and finally, if everything is ok, make and assign the shape
self.assignShape(obj)
def assignShape(self, obj):
''' Compute and assign the shape to the object 'obj' '''
n1 = obj.NodeStart.Shape.Point
n2 = obj.NodeEnd.Shape.Point
n1 = obj.NodeStart.Proxy.getAbsCoord()
n2 = obj.NodeEnd.Proxy.getAbsCoord()
shape = self.makePortShape(n1,n2)
# shape may be None, e.g. if endpoints coincide. Do not assign in this case.
# Port is still valid, but not visible.
@ -147,17 +151,25 @@ class _FHPort:
def onChanged(self, obj, prop):
''' take action if an object property 'prop' changed
'''
#FreeCAD.Console.PrintWarning("\n_FHSegment onChanged(" + str(prop)+")\n") #debug
#FreeCAD.Console.PrintWarning("\n_FHPort onChanged(" + str(prop)+")\n") #debug
if not hasattr(self,"Object"):
# on restore, self.Object is not there anymore
# on restore, self.Object is not there anymore (JSON does not serialize complex objects
# members of the class, so __getstate__() and __setstate__() skip them);
# so we must "re-attach" (re-create) the 'self.Object'
self.Object = obj
return
def serialize(self,fid):
''' Serialize the object to the 'fid' file descriptor
'''
fid.write(".external N" + self.Object.NodeStart.Label + " N" + self.Object.NodeEnd.Label + "\n")
def __getstate__(self):
return self.Type
def __setstate__(self,state):
if state:
self.Type = state
class _ViewProviderFHPort:
def __init__(self, obj):
''' Set this object to the proxy object of the actual view provider '''
@ -166,6 +178,10 @@ class _ViewProviderFHPort:
def attach(self, obj):
''' Setup the scene sub-graph of the view provider, this method is mandatory '''
# on restore, self.Object is not there anymore (JSON does not serialize complex objects
# members of the class, so __getstate__() and __setstate__() skip them);
# so we must "re-attach" (re-create) the 'self.Object'
self.Object = obj.Object
return
def updateData(self, fp, prop):
@ -198,6 +214,12 @@ class _ViewProviderFHPort:
'''
return os.path.join(iconPath, 'port_icon.svg')
def __getstate__(self):
return None
def __setstate__(self,state):
return None
class _CommandFHPort:
''' The EM FastHenry Port (FHPort) command definition
'''

119
EM_FHSegment.py
View File

@ -1,7 +1,10 @@
#***************************************************************************
#* *
#* Copyright (c) 2018 *
#* FastFieldSolvers S.R.L. http://www.fastfieldsolvers.com *
#* Efficient Power Conversion Corporation, Inc. http://epc-co.com *
#* *
#* Developed by FastFieldSolvers S.R.L. under contract by EPC *
#* http://www.fastfieldsolvers.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) *
@ -21,14 +24,15 @@
#* *
#***************************************************************************
__title__="FreeCAD E.M. Workbench FastHenry Segment Class"
__author__ = "FastFieldSolvers S.R.L."
__url__ = "http://www.fastfieldsolvers.com"
# defines
#
EMFHSEGMENT_DEF_SEGWIDTH = 1.0
EMFHSEGMENT_DEF_SEGHEIGHT = 1.0
EMFHSEGMENT_DEF_SEGWIDTH = 0.2
EMFHSEGMENT_DEF_SEGHEIGHT = 0.2
# tolerance in degrees when verifying if vectors are parallel
EMFHSEGMENT_PARTOL = 0.01
# tolerance in length
@ -81,11 +85,13 @@ def makeFHSegment(baseobj=None,nodeStart=None,nodeEnd=None,name='FHSegment'):
if nodeEnd:
if Draft.getType(nodeEnd) == "FHNode":
obj.NodeEnd = nodeEnd
# check if 'baseobj' is a wire (only base object allowed)
if baseobj:
# check if 'baseobj' is a wire (only base object allowed), and only if not passed any node
if baseobj and not obj.NodeStart and not obj.NodeEnd:
if Draft.getType(baseobj) == "Wire":
if len(baseobj.Shape.Vertexes) == 2:
obj.Base = baseobj
obj.NodeStart = EM.makeFHNode(X=obj.Base.Start.x, Y=obj.Base.Start.y, Z=obj.Base.Start.z)
obj.NodeEnd = EM.makeFHNode(X=obj.Base.End.x, Y=obj.Base.End.y, Z=obj.Base.End.z)
else:
FreeCAD.Console.PrintWarning(translate("EM","FHSegments can only be based on Line objects (not multi-segment wires)"))
else:
@ -120,6 +126,16 @@ class _FHSegment:
def execute(self, obj):
''' this method is mandatory. It is called on Document.recompute()
'''
if obj.NodeStart == None:
return
elif Draft.getType(obj.NodeStart) <> "FHNode":
FreeCAD.Console.PrintWarning(translate("EM","NodeStart is not a FHNode"))
return
if obj.NodeEnd == None:
return
elif Draft.getType(obj.NodeEnd) <> "FHNode":
FreeCAD.Console.PrintWarning(translate("EM","NodeEnd is not a FHNode"))
return
# check if we have a 'Base' object; if so, if segment end nodes
# were already defined, re-set them according to the 'Base' object;
# this means that the user cannot move freely the end nodes, if
@ -134,28 +150,22 @@ class _FHSegment:
return
# ok, it's valid. Let's verify if this is a Wire.
if Draft.getType(obj.Base) == "Wire":
# set the FHSegment Placement to the same placement of the Base object
# (FHSegment will track the Base object, if present)
#obj.Placement = obj.Base.Placement
obj.Placement = FreeCAD.Placement()
if obj.NodeStart <> None:
# TBC warning. Should use a method of _FHNode class. Shortcut.
obj.NodeStart.Base.X = obj.Base.Start.x
obj.NodeStart.Base.Y = obj.Base.Start.y
obj.NodeStart.Base.Z = obj.Base.Start.z
#obj.NodeStart.Base.Shape = Part.Vertex(obj.Base.Start)
abs_pos = obj.NodeStart.Proxy.getAbsCoord()
# 'obj.Base.Start' is an absolute position
# if 'NodeStart' is not in that position, move it
if (abs_pos-obj.Base.Start).Length > EMFHSEGMENT_LENTOL:
obj.NodeStart.Proxy.setAbsCoord(obj.Base.Start)
if obj.NodeEnd <> None:
# TBC warning. Should use a method of _FHNode class. Shortcut.
obj.NodeEnd.Base.X = obj.Base.End.x
obj.NodeEnd.Base.Y = obj.Base.End.y
obj.NodeEnd.Base.Z = obj.Base.End.z
#obj.NodeEnd.Base.Shape = Part.Vertex(obj.Base.End)
if obj.NodeStart == None:
return
elif Draft.getType(obj.NodeStart) <> "FHNode":
FreeCAD.Console.PrintWarning(translate("EM","NodeStart is not a FHNode"))
return
if obj.NodeEnd == None:
return
elif Draft.getType(obj.NodeEnd) <> "FHNode":
FreeCAD.Console.PrintWarning(translate("EM","NodeEnd is not a FHNode"))
return
abs_pos = obj.NodeEnd.Proxy.getAbsCoord()
# 'obj.Base.Start' is an absolute position
# if 'NodeStart' is not in that position, move it
if (abs_pos-obj.Base.End).Length > EMFHSEGMENT_LENTOL:
obj.NodeEnd.Proxy.setAbsCoord(obj.Base.End)
if obj.Width == None or obj.Width <= 0:
obj.Width = EMFHSEGMENT_DEF_SEGWIDTH
if obj.Height == None or obj.Height <= 0:
@ -165,8 +175,8 @@ class _FHSegment:
def assignShape(self, obj):
''' Compute and assign the shape to the object 'obj' '''
n1 = obj.NodeStart.Shape.Point
n2 = obj.NodeEnd.Shape.Point
n1 = obj.NodeStart.Proxy.getAbsCoord()
n2 = obj.NodeEnd.Proxy.getAbsCoord()
shape = self.makeSegShape(n1,n2,obj.Width,obj.Height,obj.ww)
# shape may be None, e.g. if endpoints coincide. Do not assign in this case
if shape:
@ -248,27 +258,10 @@ class _FHSegment:
'''
#FreeCAD.Console.PrintWarning("\n_FHSegment onChanged(" + str(prop)+")\n") #debug
if not hasattr(self,"Object"):
# on restore, self.Object is not there anymore
# on restore, self.Object is not there anymore (JSON does not serialize complex objects
# members of the class, so __getstate__() and __setstate__() skip them);
# so we must "re-attach" (re-create) the 'self.Object'
self.Object = obj
# if the user changed the base object. Remark: as makePoint() calls Document.recompute(),
# we cannot have the node creation in the class execute() method, since execute() is called
# upon recompute(), so we'd have recursive recompute() calls
if prop == "Base":
# check if we have a 'Base' object
if obj.Base:
# computing a shape from a base object
if obj.Base.isDerivedFrom("Part::Feature"):
# check validity
if obj.Base.Shape.isNull():
return
if not obj.Base.Shape.isValid():
return
# ok, it's valid. Let's verify if this is a Wire.
if Draft.getType(obj.Base) == "Wire":
p1 = Draft.makePoint(obj.Base.Start)
obj.NodeStart = EM.makeFHNode(p1)
p2 = Draft.makePoint(obj.Base.End)
obj.NodeEnd = EM.makeFHNode(p2)
def serialize(self,fid):
''' Serialize the object to the 'fid' file descriptor
@ -289,6 +282,13 @@ class _FHSegment:
fid.write(" rw=" + str(self.Object.rw))
fid.write("\n")
def __getstate__(self):
return self.Type
def __setstate__(self,state):
if state:
self.Type = state
class _ViewProviderFHSegment:
def __init__(self, obj):
''' Set this object to the proxy object of the actual view provider '''
@ -297,6 +297,10 @@ class _ViewProviderFHSegment:
def attach(self, obj):
''' Setup the scene sub-graph of the view provider, this method is mandatory '''
# on restore, self.Object is not there anymore (JSON does not serialize complex objects
# members of the class, so __getstate__() and __setstate__() skip them);
# so we must "re-attach" (re-create) the 'self.Object'
self.Object = obj.Object
return
def updateData(self, fp, prop):
@ -331,6 +335,12 @@ class _ViewProviderFHSegment:
'''
return os.path.join(iconPath, 'segment_icon.svg')
def __getstate__(self):
return None
def __setstate__(self,state):
return None
class _CommandFHSegment:
''' The EM FastHenry Segment (FHSegment) command definition
'''
@ -386,7 +396,7 @@ class _CommandFHSegment:
done = True
# if no selection, or nothing good in the selected objects
if not done:
FreeCAD.DraftWorkingPlane.setup()
#FreeCAD.DraftWorkingPlane.setup()
# get two 3D point via Snapper, setting the callback functions
self.points = []
FreeCADGui.Snapper.getPoint(callback=self.getPoint)
@ -400,16 +410,17 @@ class _CommandFHSegment:
# get the second point
FreeCADGui.Snapper.getPoint(last=self.points[0],callback=self.getPoint)
elif len(self.points) >= 2:
coord1 = FreeCAD.DraftWorkingPlane.getLocalCoords(self.points[0])
coord2 = FreeCAD.DraftWorkingPlane.getLocalCoords(self.points[1])
#coord1 = FreeCAD.DraftWorkingPlane.getLocalCoords(self.points[0])
#coord2 = FreeCAD.DraftWorkingPlane.getLocalCoords(self.points[1])
coord1 = self.points[0]
coord2 = self.points[1]
FreeCAD.ActiveDocument.openTransaction(translate("EM","Create FHNode"))
FreeCADGui.addModule("EM")
FreeCADGui.doCommand('import Draft')
FreeCADGui.doCommand('from FreeCAD import Vector')
FreeCADGui.doCommand('v1 = Vector('+str(coord1.x)+','+str(coord1.y)+','+str(coord1.z)+')')
FreeCADGui.doCommand('v2 = Vector('+str(coord2.x)+','+str(coord2.y)+','+str(coord2.z)+')')
FreeCADGui.doCommand('base=Draft.makeLine(v1,v2)')
FreeCADGui.doCommand('obj=EM.makeFHSegment(base)')
FreeCADGui.doCommand('node1 = EM.makeFHNode(X='+str(coord1.x)+',Y='+str(coord1.y)+',Z='+str(coord1.z)+')')
FreeCADGui.doCommand('node2 = EM.makeFHNode(X='+str(coord2.x)+',Y='+str(coord2.y)+',Z='+str(coord2.z)+')')
FreeCADGui.doCommand('obj=EM.makeFHSegment(nodeStart=node1,nodeEnd=node2)')
FreeCAD.ActiveDocument.commitTransaction()
FreeCAD.ActiveDocument.recompute()
# might improve in the future with continue command

29
EM_FHSolver.py
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@ -1,7 +1,10 @@
#***************************************************************************
#* *
#* Copyright (c) 2018 *
#* FastFieldSolvers S.R.L. http://www.fastfieldsolvers.com *
#* Efficient Power Conversion Corporation, Inc. http://epc-co.com *
#* *
#* Developed by FastFieldSolvers S.R.L. under contract by EPC *
#* http://www.fastfieldsolvers.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) *
@ -21,6 +24,7 @@
#* *
#***************************************************************************
__title__="FreeCAD E.M. Workbench FastHenry Solver Class"
__author__ = "FastFieldSolvers S.R.L."
__url__ = "http://www.fastfieldsolvers.com"
@ -154,7 +158,9 @@ class _FHSolver:
'''
#FreeCAD.Console.PrintWarning("\n_FHSolver onChanged(" + str(prop)+")\n") #debug
if not hasattr(self,"Object"):
# on restore, self.Object is not there anymore
# on restore, self.Object is not there anymore (JSON does not serialize complex objects
# members of the class, so __getstate__() and __setstate__() skip them);
# so we must "re-attach" (re-create) the 'self.Object'
self.Object = obj
def serialize(self,fid,headOrTail):
@ -162,7 +168,7 @@ class _FHSolver:
'''
if headOrTail == "head":
fid.write("* FastHenry input file created using FreeCAD's ElectroMagnetic Workbench\n")
fid.write("* See http://www.freecad.org and http://www.fastfieldsolvers.com\n")
fid.write("* See http://www.freecad.org, http://www.fastfieldsolvers.com and http://epc-co.com\n")
fid.write("\n")
fid.write(".units " + self.Object.Units + "\n")
fid.write("\n")
@ -174,6 +180,13 @@ class _FHSolver:
fid.write("\n")
fid.write(".end\n")
def __getstate__(self):
return self.Type
def __setstate__(self,state):
if state:
self.Type = state
class _ViewProviderFHSolver:
def __init__(self, obj):
''' Set this object to the proxy object of the actual view provider '''
@ -182,6 +195,10 @@ class _ViewProviderFHSolver:
def attach(self, obj):
''' Setup the scene sub-graph of the view provider, this method is mandatory '''
# on restore, self.Object is not there anymore (JSON does not serialize complex objects
# members of the class, so __getstate__() and __setstate__() skip them);
# so we must "re-attach" (re-create) the 'self.Object'
self.Object = obj.Object
return
def updateData(self, fp, prop):
@ -204,6 +221,12 @@ class _ViewProviderFHSolver:
'''
return os.path.join(iconPath, 'solver_icon.svg')
def __getstate__(self):
return None
def __setstate__(self,state):
return None
class _CommandFHSolver:
''' The EM FastHenry Solver command definition
'''

36
EM_Globals.py Normal file
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@ -0,0 +1,36 @@
#***************************************************************************
#* *
#* Copyright (c) 2018 *
#* Efficient Power Conversion Corporation, Inc. http://epc-co.com *
#* *
#* Developed by FastFieldSolvers S.R.L. under contract by EPC *
#* http://www.fastfieldsolvers.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__="FreeCAD E.M. Workbench global definitions"
__author__ = "FastFieldSolvers S.R.L."
__url__ = "http://www.fastfieldsolvers.com"
# defines
#
#EM_DEF_XXX = 1.0

6
Init.py
View File

@ -1,7 +1,10 @@
#***************************************************************************
#* *
#* Copyright (c) 2018 *
#* FastFieldSolvers S.R.L. http://www.fastfieldsolvers.com *
#* Efficient Power Conversion Corporation, Inc. http://epc-co.com *
#* *
#* Developed by FastFieldSolvers S.R.L. under contract by EPC *
#* http://www.fastfieldsolvers.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) *
@ -21,5 +24,6 @@
#* *
#***************************************************************************
# add import/export types
FreeCAD.addExportType("FastHenry file format (*.inp)","exportFH")

26
InitGui.py
View File

@ -1,7 +1,10 @@
#***************************************************************************
#* *
#* Copyright (c) 2018 *
#* FastFieldSolvers S.R.L. http://www.fastfieldsolvers.com *
#* Efficient Power Conversion Corporation, Inc. http://epc-co.com *
#* *
#* Developed by FastFieldSolvers S.R.L. under contract by EPC *
#* http://www.fastfieldsolvers.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) *
@ -21,6 +24,7 @@
#* *
#***************************************************************************
__title__="FreeCAD E.M. Workbench GUI"
__author__ = "FastFieldSolvers S.R.L."
__url__ = "http://www.fastfieldsolvers.com"
@ -35,21 +39,33 @@ class EMWorkbench(Workbench):
def Initialize(self):
import DraftTools,DraftGui
from DraftTools import translate
# import the EM module (and therefore all commands makeXXX)
import EM
# E.M. tools
self.emtools = ["EM_FHSolver", "EM_FHNode", "EM_FHSegment", "EM_FHPort", "EM_FHInputFile"]
self.emtools = ["EM_FHSolver", "EM_FHNode", "EM_FHSegment", "EM_FHPlane",
"EM_FHPlaneHole", "EM_FHEquiv", "EM_FHPort", "EM_FHInputFile"]
# draft tools
self.draftmodtools = ["Draft_Move","Draft_Rotate","Draft_Offset",
"Draft_Trimex", "Draft_Upgrade", "Draft_Downgrade", "Draft_Scale",
"Draft_Shape2DView","Draft_Draft2Sketch","Draft_Array",
"Draft_Clone"]
self.treecmdList = ["Draft_SelectPlane", "Draft_ShowSnapBar","Draft_ToggleGrid"]
self.snapList = ['Draft_Snap_Lock','Draft_Snap_Midpoint','Draft_Snap_Perpendicular',
'Draft_Snap_Grid','Draft_Snap_Intersection','Draft_Snap_Parallel',
'Draft_Snap_Endpoint','Draft_Snap_Angle','Draft_Snap_Center',
'Draft_Snap_Extension','Draft_Snap_Near','Draft_Snap_Ortho','Draft_Snap_Special',
'Draft_Snap_Dimensions','Draft_Snap_WorkingPlane']
def QT_TRANSLATE_NOOP(scope, text): return text
self.appendToolbar(QT_TRANSLATE_NOOP("Workbench","E.M. tools"),self.emtools)
self.appendToolbar(QT_TRANSLATE_NOOP("Workbench","Draft mod tools"),self.draftmodtools)
self.appendMenu(QT_TRANSLATE_NOOP("EM","&EM"),self.emtools)
self.appendMenu(QT_TRANSLATE_NOOP("EM","&Draft"),self.draftmodtools+self.treecmdList)
self.appendMenu([QT_TRANSLATE_NOOP("EM","&Draft"),QT_TRANSLATE_NOOP("arch","Snapping")],self.snapList)
#FreeCADGui.addIconPath(":/icons")
#FreeCADGui.addLanguagePath(":/translations")
#FreeCADGui.addPreferencePage(":/ui/preferences-EM.ui","EM")
#FreeCADGui.addPreferencePage(":/ui/preferences-aEMdefaults.ui","EM")
Log ('Loading EM module... done\n')
def Activated(self):

15
README.md
View File

@ -1,11 +1,24 @@
# ElectroMagnetic workbench for FreeCAD
## Copyright
### FastHenry support
Copyright (c) 2018
Efficient Power Conversion Corporation, Inc. http://epc-co.com
Developed by FastFieldSolvers S.R.L. http://www.fastfieldsolvers.com under contract by EPC
### FasterCap and FastCap support
Copyright (c) 2018
FastFieldSolvers S.R.L. http://www.fastfieldsolvers.com
## Description
This project is dedicated to building an ElectroMagnetic workbench for [FreeCAD](https://www.freecadweb.org). FreeCAD is a free 3D parametric CAD.
FreeCAD is used as pre-processor interfacing to the electromagnetic field solvers.
FreeCAD is used as pre-processor interfacing to the open source electromagnetic field solvers [FastHenry](https://www.fastfieldsolvers.com/fasthenry2.htm) and [FasterCap](https://www.fastfieldsolvers.com/fastercap.htm).
At present, the workbench supports:

248
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#***************************************************************************
#* *
#* Copyright (c) 2018 *
#* FastFieldSolvers S.R.L. http://www.fastfieldsolvers.com *
#* Efficient Power Conversion Corporation, Inc. http://epc-co.com *
#* *
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#***************************************************************************
import FreeCAD, Mesh, Part, MeshPart, DraftGeomUtils, os
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#* *
#***************************************************************************
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#***************************************************************************
#* *
#* Copyright (c) 2018 *
#* FastFieldSolvers S.R.L. http://www.fastfieldsolvers.com *
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