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4901553a2d
FreeCAD/src/Mod/OpenSCAD/OpenSCADUtils.py
l3iggs 4901553a2d fix for 0002358 
This strips off any trailing '-' text reported by openscad when asking it for its version.
2015-12-10 14:50:01 +00:00

601 lines
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#***************************************************************************
#* *
#* Copyright (c) 2012 Sebastian Hoogen <github@sebastianhoogen.de> *
#* *
#* 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 OpenSCAD Workbench - Utility Fuctions"
__author__ = "Sebastian Hoogen"
__url__ = ["http://www.freecadweb.org"]
'''
This Script includes various pyhton helper functions that are shared across
the module
'''
def translate(context,text):
"convenience function for Qt translator"
from PySide import QtGui
return QtGui.QApplication.translate(context, text, None, \
QtGui.QApplication.UnicodeUTF8)
try:
import FreeCAD
BaseError = FreeCAD.Base.FreeCADError
except ImportError,AttributeError:
BaseError = RuntimeError
class OpenSCADError(BaseError):
def __init__(self,value):
self.value= value
#def __repr__(self):
# return self.msg
def __str__(self):
return repr(self.value)
def searchforopenscadexe():
import os,sys,subprocess
if sys.platform == 'win32':
testpaths = [os.path.join(os.environ.get('Programfiles(x86)','C:'),\
'OpenSCAD\\openscad.exe')]
if 'ProgramW6432' in os.environ:
testpaths.append(os.path.join(os.environ.get('ProgramW6432','C:')\
,'OpenSCAD\\openscad.exe'))
for testpath in testpaths:
if os.path.isfile(testpath):
return testpath
elif sys.platform == 'darwin':
ascript = ('tell application "Finder"\n'
'POSIX path of (application file id "org.openscad.OpenSCAD"'
'as alias)\n'
'end tell')
p1=subprocess.Popen(['osascript','-'],stdin=subprocess.PIPE,\
stdout=subprocess.PIPE,stderr=subprocess.PIPE)
stdout,stderr = p1.communicate(ascript)
if p1.returncode == 0:
opathl=stdout.split('\n')
if len(opathl) >=1:
return opathl[0]+'Contents/MacOS/OpenSCAD'
#test the default path
testpath="/Applications/OpenSCAD.app/Contents/MacOS/OpenSCAD"
if os.path.isfile(testpath):
return testpath
else: #unix
p1=subprocess.Popen(['which','openscad'],stdout=subprocess.PIPE)
if p1.wait() == 0:
opath=p1.stdout.read().split('\n')[0]
return opath
def workaroundforissue128needed():
'''sets the import path depending on the OpenSCAD Verion
for versions <= 2012.06.23 to the current working dir
for versions above to the inputfile dir
see https://github.com/openscad/openscad/issues/128'''
vdate=getopenscadversion().split('-')[0]
vdate=vdate.split(' ')[2].split('.')
year,mon=int(vdate[0]),int(vdate[1])
return (year<2012 or (year==2012 and (mon <6 or (mon == 6 and \
(len(vdate)<3 or int(vdate[2]) <=23)))))
#ifdate=int(vdate[0])+(int(vdate[1])-1)/12.0
#if len(vdate)>2:
# fdate+=int((vdate[2])-1)/12.0/31.0
#return fdate < 2012.4759
def getopenscadversion(osfilename=None):
import os,subprocess,time
if not osfilename:
import FreeCAD
osfilename = FreeCAD.ParamGet(\
"User parameter:BaseApp/Preferences/Mod/OpenSCAD").\
GetString('openscadexecutable')
if osfilename and os.path.isfile(osfilename):
p=subprocess.Popen([osfilename,'-v'],\
stdout=subprocess.PIPE,stderr=subprocess.PIPE,universal_newlines=True)
p.wait()
stdout=p.stdout.read().strip()
stderr=p.stderr.read().strip()
return (stdout or stderr)
def newtempfilename():
import os,time
formatstr='fc-%05d-%06d-%06d'
count = 0
while True:
count+=1
yield formatstr % (os.getpid(),int(time.time()*100) % 1000000,count)
tempfilenamegen=newtempfilename()
def callopenscad(inputfilename,outputfilename=None,outputext='csg',keepname=False):
'''call the open scad binary
returns the filename of the result (or None),
please delete the file afterwards'''
import FreeCAD,os,subprocess,tempfile,time
def check_output2(*args,**kwargs):
kwargs.update({'stdout':subprocess.PIPE,'stderr':subprocess.PIPE})
p=subprocess.Popen(*args,**kwargs)
stdoutd,stderrd = p.communicate()
if p.returncode != 0:
raise OpenSCADError('%s %s\n' % (stdoutd.strip(),stderrd.strip()))
#raise Exception,'stdout %s\n stderr%s' %(stdoutd,stderrd)
if stderrd.strip():
FreeCAD.Console.PrintWarning(stderrd+u'\n')
if stdoutd.strip():
FreeCAD.Console.PrintMessage(stdoutd+u'\n')
return stdoutd
osfilename = FreeCAD.ParamGet(\
"User parameter:BaseApp/Preferences/Mod/OpenSCAD").\
GetString('openscadexecutable')
if osfilename and os.path.isfile(osfilename):
if not outputfilename:
dir1=tempfile.gettempdir()
if keepname:
outputfilename=os.path.join(dir1,'%s.%s' % (os.path.split(\
inputfilename)[1].rsplit('.',1)[0],outputext))
else:
outputfilename=os.path.join(dir1,'%s.%s' % \
(tempfilenamegen.next(),outputext))
check_output2([osfilename,'-o',outputfilename, inputfilename])
return outputfilename
else:
raise OpenSCADError('OpenSCAD executeable unavailable')
def callopenscadstring(scadstr,outputext='csg'):
'''create a tempfile and call the open scad binary
returns the filename of the result (or None),
please delete the file afterwards'''
import os,tempfile,time
dir1=tempfile.gettempdir()
inputfilename=os.path.join(dir1,'%s.scad' % tempfilenamegen.next())
inputfile = open(inputfilename,'w')
inputfile.write(scadstr)
inputfile.close()
outputfilename = callopenscad(inputfilename,outputext=outputext,\
keepname=True)
os.unlink(inputfilename)
return outputfilename
def reverseimporttypes():
'''allows to search for supported filetypes by module'''
def getsetfromdict(dict1,index):
if index in dict1:
return dict1[index]
else:
set1=set()
dict1[index]=set1
return set1
importtypes={}
import FreeCAD
for key,value in FreeCAD.getImportType().iteritems():
if type(value) is str:
getsetfromdict(importtypes,value).add(key)
else:
for vitem in value:
getsetfromdict(importtypes,vitem).add(key)
return importtypes
def fcsubmatrix(m):
"""Extracts the 3x3 Submatrix from a freecad Matrix Object
as a list of row vectors"""
return [[m.A11,m.A12,m.A13],[m.A21,m.A22,m.A23],[m.A31,m.A32,m.A33]]
def multiplymat(l,r):
"""multiply matrices given as lists of row vectors"""
rt=zip(*r) #transpose r
mat=[]
for y in range(len(rt)):
mline=[]
for x in range(len(l)):
mline.append(sum([le*re for le,re in zip(l[y],rt[x])]))
mat.append(mline)
return mat
def isorthogonal(submatrix,precision=4):
"""checking if 3x3 Matrix is ortogonal (M*Transp(M)==I)"""
prod=multiplymat(submatrix,zip(*submatrix))
return [[round(f,precision) for f in line] \
for line in prod]==[[1,0,0],[0,1,0],[0,0,1]]
def detsubmatrix(s):
"""get the determinant of a 3x3 Matrix given as list of row vectors"""
return s[0][0]*s[1][1]*s[2][2]+s[0][1]*s[1][2]*s[2][0]+\
s[0][2]*s[1][0]*s[2][1]-s[2][0]*s[1][1]*s[0][2]-\
s[2][1]*s[1][2]*s[0][0]-s[2][2]*s[1][0]*s[0][1]
def isspecialorthogonalpython(submat,precision=4):
return isorthogonal(submat,precision) and round(detsubmatrix(submat),precision)==1
def isrotoinversionpython(submat,precision=4):
return isorthogonal(submat,precision) and round(detsubmatrix(submat),precision)==-1
def isspecialorthogonal(mat,precision=4):
return abs(mat.submatrix(3).isOrthogonal(10**(-precision))-1.0) < \
10**(-precision) and \
abs(mat.submatrix(3).determinant()-1.0) < 10**(-precision)
def decomposerotoinversion(m,precision=4):
import FreeCAD
rmat = [[round(f,precision) for f in line] for line in fcsubmatrix(m)]
cmat = FreeCAD.Matrix()
if rmat ==[[-1,0,0],[0,1,0],[0,0,1]]:
cmat.scale(-1,1,1)
return m*cmat,FreeCAD.Vector(1)
elif rmat ==[[1,0,0],[0,-1,0],[0,0,1]]:
cmat.scale(1,-1,1)
return m*cmat, FreeCAD.Vector(0,1)
elif rmat ==[[1,0,0],[0,1,0],[0,0,-1]]:
cmat.scale(1,1,-1)
return m*cmat, FreeCAD.Vector(0,0,1)
else:
cmat.scale(1,1,-1)
return m*cmat, FreeCAD.Vector(0,0,1)
def mirror2mat(nv,bv):
import FreeCAD
"""calculate the transformation matrix of a mirror feature"""
mbef=FreeCAD.Matrix()
mbef.move(bv * -1)
maft=FreeCAD.Matrix()
maft.move(bv)
return maft*vec2householder(nv)*mbef
def vec2householder(nv):
"""calculated the householder matrix for a given normal vector"""
import FreeCAD
lnv=nv.dot(nv)
l=2/lnv if lnv > 0 else 0
hh=FreeCAD.Matrix(nv.x*nv.x*l,nv.x*nv.y*l,nv.x*nv.z*l,0,\
nv.y*nv.x*l,nv.y*nv.y*l,nv.y*nv.z*l,0,\
nv.z*nv.x*l,nv.z*nv.y*l,nv.z*nv.z*l,0,0,0,0,0)
return FreeCAD.Matrix()-hh
def angneg(d):
return d if (d <= 180.0) else (d-360)
def shorthexfloat(f):
s=f.hex()
mantisse, exponent = f.hex().split('p',1)
return '%sp%s' % (mantisse.rstrip('0'),exponent)
def comparerotations(r1,r2):
import FreeCAD
'''compares two rotations
a value of zero means that they are identical'''
r2c=FreeCAD.Rotation(r2)
r2c.invert()
return r1.multiply(r2c).Angle
def findbestmatchingrotation(r1):
import FreeCAD
vangl = \
(1.0, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0, 8.0, 9.0, 10.0, 11.0, 11.25, 12.0, 13.0,
14.0, 15.0, 16.0, (180.0/11.0), 17.0, 18.0, 19.0, 20.0, 21.0, 22.0, 22.5,
23.0, 24.0, 25.0, 26.0, 27.0, 28.0, 29.0, 30.0, 31.0, 32.0, (360.0/11.0),
33.0, 33.75, 34.0, 35.0, 36.0, 37.0, 38.0, 39.0, 40.0, 41.0, 42.0, 43.0,
44.0, 45.0, 46.0, 47.0, 48.0, 49.0,(540.0/11.0), 50.0, 51.0, (360.0/7.0),
52.0, 53.0, 54.0, 55.0, 56.0, 56.25, 57.0, 58.0, 59.0, 60.0, 61.0, 62.0,
63.0, 64.0, 65.0,(720.0/11.0), 66.0, 67.0, 67.5, 68.0, 69.0, 70.0, 71.0,
72.0, 73.0, 74.0, 75.0, 76.0, 77.0, 78.0, 78.75, 79.0, 80.0, 81.0,(900.0/11.0),
82.0, 83.0, 84.0, 85.0, 86.0, 87.0, 88.0, 89.0, 90.0, 91.0, 92.0, 93.0, 94.0,
95.0, 96.0, 97.0, 98.0,(1080.0/11.0), 99.0, 100.0, 101.0, 101.25, 102.0,
(720.0/7.0), 103.0, 104.0, 105.0, 106.0, 107.0, 108.0, 109.0, 110.0, 111.0,
112.0, 112.5, 113.0, 114.0, (1260.0/11), 115.0, 116.0, 117.0, 118.0, 119.0,
120.0, 121.0, 122.0, 123.0, 123.75, 124.0, 125.0, 126.0, 127.0, 128.0,
129.0, 130.0,(1440.0/11.0), 131.0, 132.0, 133.0, 134.0, 135.0, 136.0,
137.0, 138.0, 139.0, 140.0, 141.0, 142.0, 143.0, 144.0, 145.0, 146.0, 146.25,
147.0, (1620.0/11.0), 148.0, 149.0, 150.0, 151.0, 152.0, 153.0, 154.0,
(1080.0/7.0), 155.0, 156.0, 157.0, 157.5, 158.0, 159.0, 160.0, 161.0, 162.0,
163.0, (1800.0/11.0), 164.0, 165.0, 166.0, 167.0, 168.0, 168.75, 169.0, 170.0,
171.0, 172.0, 173.0, 174.0, 175.0, 176.0, 177.0,178.0, 179.0,180.0,
-179.0, -178.0, -177.0, -176.0, -175.0, -174.0, -173.0, -172.0, -171.0, -170.0,
-169.0, -168.75, -168.0, -167.0, -166.0, -165.0, -164.0, (-1800.0/11.0),
-163.0, -162.0, -161.0, -160.0, -159.0, -158.0, -157.5, -157.0, -156.0,
-155.0, (-1080.0/7.0), -154.0, -153.0, -152.0, -151.0, -150.0, -149.0, -148.0,
(-1620.0/11.0), -147.0, -146.25, -146.0, -145.0, -144.0, -143.0, -142.0,
-141.0, -140.0, -139.0,-138.0, -137.0, -136.0, -135.0, -134.0, -133.0, -132.0,
-131.0, (-1440/11.0), -130.0, -129.0, -128.0,-127.0, -126.0, -125.0, -124.0,
-123.75, -123.0, -122.0, -121.0, -120.0, -119.0, -118.0, -117.0, -116.0,
-115.0,(-1260.0/11.0), -114.0, -113.0, -112.5, -112.0, -111.0, -110.0, -109.0,
-108.0, -107.0, -106.0, -105.0,-104.0, -103.0,(-720.0/7.0), -102.0, -101.25,
-101.0, -100.0, -99.0, (-1080.0/11.0), -98.0, -97.0, -96.0, -95.0, -94.0,
-93.0, -92.0, -91.0, -90.0, -89.0, -88.0, -87.0, -86.0, -85.0, -84.0, -83.0,
-82.0,(-900.0/11.0), -81.0, -80.0, -79.0, -78.75, -78.0, -77.0, -76.0, -75.0,
-74.0, -73.0, -72.0, -71.0, -70.0, -69.0, -68.0, -67.5, -67.0, -66.0,
(-720.0/11.0), -65.0, -64.0, -63.0, -62.0, -61.0, -60.0, -59.0, -58.0, -57.0,
-56.25, -56.0, -55.0, -54.0, -53.0, -52.0,(-360.0/7.0), -51.0, -50.0,
(-540.0/11.0), -49.0, -48.0, -47.0, -46.0, -45.0, -44.0, -43.0, -42.0, -41.0,
-40.0, -39.0, -38.0, -37.0, -36.0, -35.0, -34.0, -33.75, -33.0,(-360.0/11.0),
-32.0, -31.0, -30.0, -29.0, -28.0, -27.0, -26.0, -25.0, -24.0, -23.0, -22.5,
-22.0, -21.0, -20.0, -19.0, -18.0, -17.0,(-180.0/11.0), -16.0, -15.0, -14.0,
-13.0, -12.0, -11.25, -11.0, -10.0, -9.0, -8.0, -7.0, -6.0, -5.0, -4.0, -3.0,
-2.0, -1.0)
def tup2nvect(tup):
"""convert a tuple to a normalized vector"""
v=FreeCAD.Vector(*tup)
v.normalize()
return v
def wkaxes():
"""well known axes for rotations"""
vtupl=((1,0,0),(0,1,0),(0,0,1),
(1,1,0),(1,0,1),(0,1,1),(-1,1,0),(-1,0,1),(0,1,-1),
(1,1,1),(1,1,-1),(1,-1,1),(-1,1,1))
return tuple(tup2nvect(tup) for tup in vtupl)
bestrot=FreeCAD.Rotation()
dangle = comparerotations(r1,bestrot)
for axis in wkaxes():
for angle in vangl:
for axissign in (1.0,-1.0):
r2=FreeCAD.Rotation(axis*axissign,angle)
dangletest = comparerotations(r1,r2)
if dangletest < dangle:
bestrot = r2
dangle = dangletest
return (bestrot,dangle)
def roundrotation(rot,maxangulardistance=1e-5):
'''guess the rotation axis and angle for a rotation
recreated from rounded floating point values
(from a quaterion or transformation matrix)'''
def teststandardrot(r1,maxangulardistance=1e-5):
'''test a few common rotations beforehand'''
import FreeCAD,itertools
eulers = []
for angle in (90,-90,180,45,-45,135,-135):
for euler in itertools.permutations((0,0,angle)):
eulers.append(euler)
for euler in itertools.product((0,45,90,135,180,-45,-90,-135),repeat=3):
eulers.append(euler)
for euler in eulers:
r2 = FreeCAD.Rotation(*euler)
if comparerotations(r1,r2) < maxangulardistance:
return r2
if rot.isNull():
return rot
firstguess = teststandardrot(rot,maxangulardistance)
if firstguess is not None:
return firstguess
#brute force
bestguess,angulardistance = findbestmatchingrotation(rot)
if angulardistance < maxangulardistance: #use guess
return bestguess
else: #use original
return rot
def callopenscadmeshstring(scadstr):
"""Call OpenSCAD and return the result as a Mesh"""
import Mesh,os
tmpfilename=callopenscadstring(scadstr,'stl')
newmesh=Mesh.Mesh()
newmesh.read(tmpfilename)
try:
os.unlink(tmpfilename)
except OSError:
pass
return newmesh
def meshopinline(opname,iterable1):
"""uses OpenSCAD to combine meshes
takes the name of the CGAL operation and an iterable (tuple,list) of
FreeCAD Mesh objects
includes all the mesh data in the SCAD file
"""
from exportCSG import mesh2polyhedron
return callopenscadmeshstring('%s(){%s}' % (opname,' '.join(\
(mesh2polyhedron(meshobj) for meshobj in iterable1))))
def meshoptempfile(opname,iterable1):
"""uses OpenSCAD to combine meshes
takes the name of the CGAL operation and an iterable (tuple,list) of
FreeCAD Mesh objects
uses stl files to supply the mesh data
"""
import os,tempfile
dir1=tempfile.gettempdir()
filenames = []
for mesh in iterable1:
outputfilename=os.path.join(dir1,'%s.stl' % tempfilenamegen.next())
mesh.write(outputfilename)
filenames.append(outputfilename)
#absolute path causes error. We rely that the scad file will be in the dame tmpdir
meshimports = ' '.join("import(file = \"%s\");" % \
#filename \
os.path.split(filename)[1] for filename in filenames)
result = callopenscadmeshstring('%s(){%s}' % (opname,meshimports))
for filename in filenames:
try:
os.unlink(filename)
except OSError:
pass
return result
def meshoponobjs(opname,inobjs):
"""
takes a string (operation name) and a list of Feature Objects
returns a mesh and a list of objects that were used
Part Objects will be meshed
"""
objs=[]
meshes=[]
for obj in inobjs:
if obj.isDerivedFrom('Mesh::Feature'):
objs.append(obj)
meshes.append(obj.Mesh)
elif obj.isDerivedFrom('Part::Feature'):
#mesh the shape
import FreeCAD
params = FreeCAD.ParamGet("User parameter:BaseApp/Preferences/Mod/OpenSCAD")
objs.append(obj)
if False: # disabled due to issue 1292
import MeshPart
meshes.append(MeshPart.meshFromShape(obj.Shape,params.GetFloat(\
'meshmaxlength',1.0), params.GetFloat('meshmaxarea',0.0),\
params.GetFloat('meshlocallen',0.0),\
params.GetFloat('meshdeflection',0.0)))
else:
import Mesh
meshes.append(Mesh.Mesh(obj.Shape.tessellate(params.GetFloat(\
'meshmaxlength',1.0))))
else:
pass #neither a mesh nor a part
if len(objs) > 0:
return (meshoptempfile(opname,meshes),objs)
else:
return (None,[])
def process2D_ObjectsViaOpenSCADShape(ObjList,Operation,doc):
import FreeCAD,importDXF
import os,tempfile
dir1=tempfile.gettempdir()
filenames = []
for item in ObjList :
outputfilename=os.path.join(dir1,'%s.dxf' % tempfilenamegen.next())
importDXF.export([item],outputfilename,True,True)
filenames.append(outputfilename)
dxfimports = ' '.join("import(file = \"%s\");" % \
#filename \
os.path.split(filename)[1] for filename in filenames)
tmpfilename = callopenscadstring('%s(){%s}' % (Operation,dxfimports),'dxf')
from OpenSCAD2Dgeom import importDXFface
# TBD: assure the given doc is active
face = importDXFface(tmpfilename,None,None)
#clean up
filenames.append(tmpfilename) #delete the ouptut file as well
try:
os.unlink(tmpfilename)
except OSError:
pass
return face
def process2D_ObjectsViaOpenSCAD(ObjList,Operation,doc=None):
import FreeCAD
doc = doc or FreeCAD.activeDocument()
face=process2D_ObjectsViaOpenSCADShape(ObjList,Operation,doc)
obj=doc.addObject('Part::Feature',Operation)
obj.Shape=face
# Hide Children
if FreeCAD.GuiUp:
for index in ObjList :
index.ViewObject.hide()
return(obj)
def process3D_ObjectsViaOpenSCADShape(ObjList,Operation,maxmeshpoints=None):
import FreeCAD,Mesh,Part
params = FreeCAD.ParamGet("User parameter:BaseApp/Preferences/Mod/OpenSCAD")
if False: # disabled due to issue 1292
import MeshPart
meshes = [MeshPart.meshFromShape(obj.Shape,params.GetFloat(\
'meshmaxlength',1.0), params.GetFloat('meshmaxarea',0.0),\
params.GetFloat('meshlocallen',0.0),\
params.GetFloat('meshdeflection',0.0)) for obj in ObjList]
else:
meshes = [Mesh.Mesh(obj.Shape.tessellate(params.GetFloat(\
'meshmaxlength',1.0))) for obj in ObjList]
if max(mesh.CountPoints for mesh in meshes) < \
(maxmeshpoints or params.GetInt('tempmeshmaxpoints',5000)):
stlmesh = meshoptempfile(Operation,meshes)
sh=Part.Shape()
sh.makeShapeFromMesh(stlmesh.Topology,0.1)
solid = Part.Solid(sh)
solid=solid.removeSplitter()
if solid.Volume < 0:
solid.complement()
return solid
def process3D_ObjectsViaOpenSCAD(doc,ObjList,Operation):
solid = process3D_ObjectsViaOpenSCADShape(ObjList,Operation)
if solid is not None:
obj=doc.addObject('Part::Feature',Operation) #non parametric objec
obj.Shape=solid#.removeSplitter()
if FreeCAD.GuiUp:
for index in ObjList :
index.ViewObject.hide()
return(obj)
def process_ObjectsViaOpenSCADShape(doc,children,name,maxmeshpoints=None):
if all((not obj.Shape.isNull() and obj.Shape.Volume == 0) \
for obj in children):
return process2D_ObjectsViaOpenSCADShape(children,name,doc)
elif all((not obj.Shape.isNull() and obj.Shape.Volume > 0) \
for obj in children):
return process3D_ObjectsViaOpenSCADShape(children,name,maxmeshpoints)
else:
import FreeCAD
FreeCAD.Console.PrintError( unicode(translate('OpenSCAD',\
"Error all shapes must be either 2D or both must be 3D"))+u'\n')
def process_ObjectsViaOpenSCAD(doc,children,name):
if all((not obj.Shape.isNull() and obj.Shape.Volume == 0) \
for obj in children):
return process2D_ObjectsViaOpenSCAD(children,name,doc)
elif all((not obj.Shape.isNull() and obj.Shape.Volume > 0) \
for obj in children):
return process3D_ObjectsViaOpenSCAD(doc,children,name)
else:
import FreeCAD
FreeCAD.Console.PrintError( unicode(translate('OpenSCAD',\
"Error all shapes must be either 2D or both must be 3D"))+u'\n')
def removesubtree(objs):
def addsubobjs(obj,toremoveset):
toremove.add(obj)
for subobj in obj.OutList:
addsubobjs(subobj,toremoveset)
import FreeCAD
toremove=set()
for obj in objs:
addsubobjs(obj,toremove)
checkinlistcomplete =False
while not checkinlistcomplete:
for obj in toremove:
if (obj not in objs) and (frozenset(obj.InList) - toremove):
toremove.remove(obj)
break
else:
checkinlistcomplete = True
for obj in toremove:
obj.Document.removeObject(obj.Name)
def applyPlacement(shape):
if shape.Placement.isNull():
return shape
else:
import Part
if shape.ShapeType == 'Solid':
return Part.Solid(shape.childShapes()[0])
elif shape.ShapeType == 'Face':
return Part.Face(shape.childShapes())
elif shape.ShapeType == 'Compound':
return Part.Compound(shape.childShapes())
elif shape.ShapeType == 'Wire':
return Part.Wire(shape.childShapes())
elif shape.ShapeType == 'Shell':
return Part.Shell(shape.childShapes())
else:
return Part.Compound([shape])
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