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importIFC.py
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importIFC.py
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#***************************************************************************
#* *
#* Copyright (c) 2014 *
#* Yorik van Havre <yorik@uncreated.net> *
#* *
#* 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 IFC importer - Enhanced ifcopenshell-only version"
__author__ = "Yorik van Havre"
__url__ = "http://www.freecadweb.org"
import os,time,tempfile,uuid,FreeCAD,Part,Draft,Arch,math,DraftVecUtils
if open.__module__ == '__builtin__':
pyopen = open # because we'll redefine open below
# which IFC type must create which FreeCAD type
typesmap = { "Site": ["IfcSite"],
"Building": ["IfcBuilding"],
"Floor": ["IfcBuildingStorey"],
"Structure": ["IfcBeam", "IfcBeamStandardCase", "IfcColumn", "IfcColumnStandardCase", "IfcSlab", "IfcFooting", "IfcPile", "IfcTendon"],
"Wall": ["IfcWall", "IfcWallStandardCase", "IfcCurtainWall"],
"Window": ["IfcWindow", "IfcWindowStandardCase", "IfcDoor", "IfcDoorStandardCase"],
"Roof": ["IfcRoof"],
"Stairs": ["IfcStair", "IfcStairFlight", "IfcRamp", "IfcRampFlight"],
"Space": ["IfcSpace"],
"Rebar": ["IfcReinforcingBar"],
"Equipment": ["IfcFurnishingElement","IfcSanitaryTerminal","IfcFlowTerminal","IfcElectricAppliance"]
}
# specific name translations
translationtable = { "Foundation":"Footing",
"Floor":"BuildingStorey",
"Rebar":"ReinforcingBar",
"HydroEquipment":"SanitaryTerminal",
"ElectricEquipment":"ElectricAppliance",
"Furniture":"FurnishingElement",
"Stair Flight":"StairFlight",
"Curtain Wall":"CurtainWall"
}
ifctemplate = """ISO-10303-21;
HEADER;
FILE_DESCRIPTION(('ViewDefinition [CoordinationView]'),'2;1');
FILE_NAME('$filename','$timestamp',('$owner','$email'),('$company'),'IfcOpenShell','IfcOpenShell','');
FILE_SCHEMA(('IFC2X3'));
ENDSEC;
DATA;
#1=IFCPERSON($,$,'$owner',$,$,$,$,$);
#2=IFCORGANIZATION($,'$company',$,$,$);
#3=IFCPERSONANDORGANIZATION(#1,#2,$);
#4=IFCAPPLICATION(#2,'$version','FreeCAD','118df2cf_ed21_438e_a41');
#5=IFCOWNERHISTORY(#3,#4,$,.ADDED.,$,#3,#4,$now);
#6=IFCDIRECTION((1.,0.,0.));
#7=IFCDIRECTION((0.,0.,1.));
#8=IFCCARTESIANPOINT((0.,0.,0.));
#9=IFCAXIS2PLACEMENT3D(#8,#7,#6);
#10=IFCDIRECTION((0.,1.,0.));
#11=IFCGEOMETRICREPRESENTATIONCONTEXT('Plan','Model',3,1.E-05,#9,#10);
#12=IFCDIMENSIONALEXPONENTS(0,0,0,0,0,0,0);
#13=IFCSIUNIT(*,.LENGTHUNIT.,$,.METRE.);
#14=IFCSIUNIT(*,.AREAUNIT.,$,.SQUARE_METRE.);
#15=IFCSIUNIT(*,.VOLUMEUNIT.,$,.CUBIC_METRE.);
#16=IFCSIUNIT(*,.PLANEANGLEUNIT.,$,.RADIAN.);
#17=IFCMEASUREWITHUNIT(IFCPLANEANGLEMEASURE(0.017453292519943295),#16);
#18=IFCCONVERSIONBASEDUNIT(#12,.PLANEANGLEUNIT.,'DEGREE',#17);
#19=IFCUNITASSIGNMENT((#13,#14,#15,#18));
#20=IFCPROJECT('$projectid',#5,'$project',$,$,$,$,(#11),#19);
ENDSEC;
END-ISO-10303-21;
"""
def doubleClickTree(item,column):
txt = item.text(column)
if "Entity #" in txt:
eid = txt.split("#")[1].split(":")[0]
addr = tree.findItems(eid,0,0)
if addr:
tree.scrollToItem(addr[0])
addr[0].setSelected(True)
def explore(filename=None):
"""explore([filename]): opens a dialog showing
the contents of an IFC file. If no filename is given, a dialog will
pop up to choose a file."""
p = FreeCAD.ParamGet("User parameter:BaseApp/Preferences/Mod/Arch")
DEBUG = p.GetBool("ifcDebug",False)
try:
import ifcopenshell
except:
FreeCAD.Console.PrintError("IfcOpenShell was not found on this system. IFC support is disabled\n")
return
if not filename:
from PySide import QtGui
filename = QtGui.QFileDialog.getOpenFileName(QtGui.qApp.activeWindow(),'IFC files','*.ifc')
if filename:
filename = filename[0]
from PySide import QtCore,QtGui
if isinstance(filename,unicode):
import sys #workaround since ifcopenshell currently can't handle unicode filenames
filename = filename.encode(sys.getfilesystemencoding())
if not os.path.exists(filename):
print "File not found"
return
ifc = ifcopenshell.open(filename)
global tree
tree = QtGui.QTreeWidget()
tree.setColumnCount(3)
tree.setWordWrap(True)
tree.header().setDefaultSectionSize(60)
tree.header().resizeSection(0,60)
tree.header().resizeSection(1,30)
tree.header().setStretchLastSection(True)
tree.headerItem().setText(0, "ID")
tree.headerItem().setText(1, "")
tree.headerItem().setText(2, "Item and Properties")
bold = QtGui.QFont()
bold.setWeight(75)
bold.setBold(True)
entities = ifc.by_type("IfcRoot")
entities += ifc.by_type("IfcRepresentation")
entities += ifc.by_type("IfcRepresentationItem")
entities += ifc.by_type("IfcPlacement")
entities += ifc.by_type("IfcProperty")
entities += ifc.by_type("IfcPhysicalSimpleQuantity")
entities += ifc.by_type("IfcMaterial")
entities = sorted(entities, key=lambda eid: eid.id())
done = []
for entity in entities:
if hasattr(entity,"id"):
if entity.id() in done:
continue
done.append(entity.id())
item = QtGui.QTreeWidgetItem(tree)
item.setText(0,str(entity.id()))
if entity.is_a() in ["IfcWall","IfcWallStandardCase"]:
item.setIcon(1,QtGui.QIcon(":icons/Arch_Wall_Tree.svg"))
elif entity.is_a() in ["IfcBuildingElementProxy"]:
item.setIcon(1,QtGui.QIcon(":icons/Arch_Component.svg"))
elif entity.is_a() in ["IfcColumn","IfcColumnStandardCase","IfcBeam","IfcBeamStandardCase","IfcSlab","IfcFooting","IfcPile","IfcTendon"]:
item.setIcon(1,QtGui.QIcon(":icons/Arch_Structure_Tree.svg"))
elif entity.is_a() in ["IfcSite"]:
item.setIcon(1,QtGui.QIcon(":icons/Arch_Site_Tree.svg"))
elif entity.is_a() in ["IfcBuilding"]:
item.setIcon(1,QtGui.QIcon(":icons/Arch_Building_Tree.svg"))
elif entity.is_a() in ["IfcBuildingStorey"]:
item.setIcon(1,QtGui.QIcon(":icons/Arch_Floor_Tree.svg"))
elif entity.is_a() in ["IfcWindow","IfcWindowStandardCase","IfcDoor","IfcDoorStandardCase"]:
item.setIcon(1,QtGui.QIcon(":icons/Arch_Window_Tree.svg"))
elif entity.is_a() in ["IfcRoof"]:
item.setIcon(1,QtGui.QIcon(":icons/Arch_Roof_Tree.svg"))
elif entity.is_a() in ["IfcExtrudedAreaSolid","IfcClosedShell"]:
item.setIcon(1,QtGui.QIcon(":icons/Tree_Part.svg"))
elif entity.is_a() in ["IfcFace"]:
item.setIcon(1,QtGui.QIcon(":icons/Draft_SwitchMode.svg"))
elif entity.is_a() in ["IfcArbitraryClosedProfileDef","IfcPolyloop"]:
item.setIcon(1,QtGui.QIcon(":icons/Draft_Draft.svg"))
elif entity.is_a() in ["IfcPropertySingleValue","IfcQuantityArea","IfcQuantityVolume"]:
item.setIcon(1,QtGui.QIcon(":icons/Tree_Annotation.svg"))
elif entity.is_a() in ["IfcMaterial"]:
item.setIcon(1,QtGui.QIcon(":icons/Arch_Material.svg"))
item.setText(2,str(entity.is_a()))
item.setFont(2,bold);
i = 0
while True:
try:
argname = entity.attribute_name(i)
except:
break
else:
try:
argvalue = getattr(entity,argname)
except:
print "Error in entity ",entity
break
else:
if not argname in ["Id", "GlobalId"]:
colored = False
if isinstance(argvalue,ifcopenshell.entity_instance):
if argvalue.id() == 0:
t = str(argvalue)
else:
colored = True
t = "Entity #" + str(argvalue.id()) + ": " + str(argvalue.is_a())
elif isinstance(argvalue,list):
t = ""
else:
t = str(argvalue)
t = " " + str(argname) + " : " + str(t)
item = QtGui.QTreeWidgetItem(tree)
item.setText(2,str(t))
if colored:
item.setForeground(2,QtGui.QBrush(QtGui.QColor("#005AFF")))
if isinstance(argvalue,list):
for argitem in argvalue:
colored = False
if isinstance(argitem,ifcopenshell.entity_instance):
if argitem.id() == 0:
t = str(argitem)
else:
colored = True
t = "Entity #" + str(argitem.id()) + ": " + str(argitem.is_a())
else:
t = argitem
t = " " + str(t)
item = QtGui.QTreeWidgetItem(tree)
item.setText(2,str(t))
if colored:
item.setForeground(2,QtGui.QBrush(QtGui.QColor("#005AFF")))
i += 1
d = QtGui.QDialog()
d.setObjectName("IfcExplorer")
d.setWindowTitle("Ifc Explorer")
d.resize(640, 480)
layout = QtGui.QVBoxLayout(d)
layout.addWidget(tree)
tree.itemDoubleClicked.connect(doubleClickTree)
d.exec_()
del tree
return
def open(filename,skip=[],only=[],root=None):
"opens an IFC file in a new document"
docname = os.path.splitext(os.path.basename(filename))[0]
doc = FreeCAD.newDocument(docname)
doc.Label = docname
doc = insert(filename,doc.Name,skip,only,root)
return doc
def insert(filename,docname,skip=[],only=[],root=None):
"""insert(filename,docname,skip=[],only=[],root=None): imports the contents of an IFC file.
skip can contain a list of ids of objects to be skipped, only can restrict the import to
certain object ids (will also get their children) and root can be used to
import only the derivates of a certain element type (default = ifcProduct)."""
p = FreeCAD.ParamGet("User parameter:BaseApp/Preferences/Mod/Arch")
DEBUG = p.GetBool("ifcDebug",False)
PREFIX_NUMBERS = p.GetBool("ifcPrefixNumbers",False)
SKIP = p.GetString("ifcSkip","").split(",")
SEPARATE_OPENINGS = p.GetBool("ifcSeparateOpenings",False)
ROOT_ELEMENT = p.GetString("ifcRootElement","IfcProduct")
GET_EXTRUSIONS = p.GetBool("ifcGetExtrusions",False)
MERGE_MATERIALS = p.GetBool("ifcMergeMaterials",False)
if root:
ROOT_ELEMENT = root
MERGE_MODE = p.GetInt("ifcImportMode",0)
if MERGE_MODE > 0:
SEPARATE_OPENINGS = False
GET_EXTRUSIONS = False
if not SEPARATE_OPENINGS:
SKIP.append("IfcOpeningElement")
try:
import ifcopenshell
except:
FreeCAD.Console.PrintError("IfcOpenShell was not found on this system. IFC support is disabled\n")
return
if DEBUG: print "Opening ",filename,"...",
try:
doc = FreeCAD.getDocument(docname)
except:
doc = FreeCAD.newDocument(docname)
FreeCAD.ActiveDocument = doc
if DEBUG: print "done."
global ifcfile # keeping global for debugging purposes
if isinstance(filename,unicode):
import sys #workaround since ifcopenshell currently can't handle unicode filenames
filename = filename.encode(sys.getfilesystemencoding())
ifcfile = ifcopenshell.open(filename)
from ifcopenshell import geom
settings = ifcopenshell.geom.settings()
settings.set(settings.USE_BREP_DATA,True)
settings.set(settings.SEW_SHELLS,True)
settings.set(settings.USE_WORLD_COORDS,True)
if SEPARATE_OPENINGS:
settings.set(settings.DISABLE_OPENING_SUBTRACTIONS,True)
sites = ifcfile.by_type("IfcSite")
buildings = ifcfile.by_type("IfcBuilding")
floors = ifcfile.by_type("IfcBuildingStorey")
products = ifcfile.by_type(ROOT_ELEMENT)
openings = ifcfile.by_type("IfcOpeningElement")
annotations = ifcfile.by_type("IfcAnnotation")
materials = ifcfile.by_type("IfcMaterial")
if DEBUG: print "Building relationships table...",
# building relations tables
objects = {} # { id:object, ... }
additions = {} # { host:[child,...], ... }
subtractions = [] # [ [opening,host], ... ]
properties = {} # { host:[property, ...], ... }
colors = {} # { id:(r,g,b) }
shapes = {} # { id:shaoe } only used for merge mode
mattable = {} # { objid:matid }
for r in ifcfile.by_type("IfcRelContainedInSpatialStructure"):
additions.setdefault(r.RelatingStructure.id(),[]).extend([e.id() for e in r.RelatedElements])
for r in ifcfile.by_type("IfcRelAggregates"):
additions.setdefault(r.RelatingObject.id(),[]).extend([e.id() for e in r.RelatedObjects])
for r in ifcfile.by_type("IfcRelVoidsElement"):
subtractions.append([r.RelatedOpeningElement.id(), r.RelatingBuildingElement.id()])
for r in ifcfile.by_type("IfcRelDefinesByProperties"):
for obj in r.RelatedObjects:
if r.RelatingPropertyDefinition.is_a("IfcPropertySet"):
properties.setdefault(obj.id(),[]).extend([e.id() for e in r.RelatingPropertyDefinition.HasProperties])
for r in ifcfile.by_type("IfcRelAssociatesMaterial"):
for o in r.RelatedObjects:
mattable[o.id()] = r.RelatingMaterial.id()
for r in ifcfile.by_type("IfcStyledItem"):
if r.Styles[0].is_a("IfcPresentationStyleAssignment"):
if r.Styles[0].Styles[0].is_a("IfcSurfaceStyle"):
if r.Styles[0].Styles[0].Styles[0].is_a("IfcSurfaceStyleRendering"):
if r.Styles[0].Styles[0].Styles[0].SurfaceColour:
c = r.Styles[0].Styles[0].Styles[0].SurfaceColour
if r.Item:
for p in ifcfile.by_type("IfcProduct"):
if p.Representation:
for it in p.Representation.Representations:
if it.Items:
if it.Items[0].id() == r.Item.id():
colors[p.id()] = (c.Red,c.Green,c.Blue)
elif it.Items[0].is_a("IfcBooleanResult"):
if (it.Items[0].FirstOperand.id() == r.Item.id()):
colors[p.id()] = (c.Red,c.Green,c.Blue)
else:
for m in ifcfile.by_type("IfcMaterialDefinitionRepresentation"):
for it in m.Representations:
if it.Items:
if it.Items[0].id() == r.id():
colors[m.RepresentedMaterial.id()] = (c.Red,c.Green,c.Blue)
if only: # only import a list of IDs and their children
ids = []
while only:
currentid = only.pop()
ids.append(currentid)
if currentid in additions.keys():
only.extend(additions[currentid])
products = [ifcfile[currentid] for currentid in ids]
if DEBUG: print "done."
count = 0
from FreeCAD import Base
progressbar = Base.ProgressIndicator()
progressbar.start("Importing IFC objects...",len(products))
# products
for product in products:
pid = product.id()
guid = product.GlobalId
ptype = product.is_a()
if DEBUG: print count,"/",len(products)," creating object ",pid," : ",ptype,
name = str(ptype[3:])
if product.Name:
name = product.Name.decode("unicode_escape").encode("utf8")
if PREFIX_NUMBERS: name = "ID" + str(pid) + " " + name
obj = None
baseobj = None
brep = None
if pid in skip: # user given id skip list
if DEBUG: print " skipped."
continue
if ptype in SKIP: # preferences-set type skip list
if DEBUG: print " skipped."
continue
try:
cr = ifcopenshell.geom.create_shape(settings,product)
brep = cr.geometry.brep_data
except:
pass # IfcOpenShell will yield an error if a given product has no shape, but we don't care
if brep:
if DEBUG: print " ",str(len(brep)/1000),"k ",
shape = Part.Shape()
shape.importBrepFromString(brep)
shape.scale(1000.0) # IfcOpenShell always outputs in meters
if not shape.isNull():
if MERGE_MODE > 0:
if ptype == "IfcSpace": # do not add spaces to compounds
if DEBUG: print "skipping space ",pid
else:
shapes[pid] = shape
if DEBUG: print shape.Solids
baseobj = shape
else:
if GET_EXTRUSIONS:
ex = Arch.getExtrusionData(shape)
if ex:
print "extrusion ",
baseface = FreeCAD.ActiveDocument.addObject("Part::Feature",name+"_footprint")
baseface.Shape = ex[0]
baseobj = FreeCAD.ActiveDocument.addObject("Part::Extrusion",name+"_body")
baseobj.Base = baseface
baseobj.Dir = ex[1]
if FreeCAD.GuiUp:
baseface.ViewObject.hide()
if not baseobj:
baseobj = FreeCAD.ActiveDocument.addObject("Part::Feature",name+"_body")
baseobj.Shape = shape
else:
if DEBUG: print "null shape ",
if not shape.isValid():
if DEBUG: print "invalid shape ",
#continue
else:
if DEBUG: print " no brep ",
if MERGE_MODE == 0:
# full Arch objects
for freecadtype,ifctypes in typesmap.items():
if ptype in ifctypes:
obj = getattr(Arch,"make"+freecadtype)(baseobj=baseobj,name=name)
obj.Label = name
if FreeCAD.GuiUp and baseobj:
baseobj.ViewObject.hide()
# setting role
try:
r = ptype[3:]
tr = dict((v,k) for k, v in translationtable.iteritems())
if r in tr.keys():
r = tr[r]
# remove the "StandardCase"
if "StandardCase" in r:
r = r[:-12]
obj.Role = r
except:
pass
# setting uid
if hasattr(obj,"IfcAttributes"):
a = obj.IfcAttributes
a["IfcUID"] = str(guid)
obj.IfcAttributes = a
break
if not obj:
obj = Arch.makeComponent(baseobj,name=name)
if obj:
sols = str(obj.Shape.Solids) if hasattr(obj,"Shape") else "[]"
if DEBUG: print sols
objects[pid] = obj
elif MERGE_MODE == 1:
# non-parametric Arch objects
if ptype in ["IfcSite","IfcBuilding","IfcBuildingStorey"]:
for freecadtype,ifctypes in typesmap.items():
if ptype in ifctypes:
obj = getattr(Arch,"make"+freecadtype)(baseobj=None,name=name)
elif baseobj:
obj = Arch.makeComponent(baseobj,name=name,delete=True)
elif MERGE_MODE == 2:
# Part shapes
if ptype in ["IfcSite","IfcBuilding","IfcBuildingStorey"]:
for freecadtype,ifctypes in typesmap.items():
if ptype in ifctypes:
obj = getattr(Arch,"make"+freecadtype)(baseobj=None,name=name)
elif baseobj:
obj = FreeCAD.ActiveDocument.addObject("Part::Feature",name)
obj.Shape = shape
if obj:
obj.Label = name
objects[pid] = obj
# properties
if pid in properties:
if hasattr(obj,"IfcAttributes"):
a = obj.IfcAttributes
for p in properties[pid]:
o = ifcfile[p]
if o.is_a("IfcPropertySingleValue"):
a[o.Name.decode("unicode_escape").encode("utf8")] = str(o.NominalValue)
obj.IfcAttributes = a
# color
if FreeCAD.GuiUp and (pid in colors) and hasattr(obj.ViewObject,"ShapeColor"):
if DEBUG: print " setting color: ",colors[pid]
obj.ViewObject.ShapeColor = colors[pid]
# if DEBUG is on, recompute after each shape
if DEBUG: FreeCAD.ActiveDocument.recompute()
count += 1
progressbar.next()
progressbar.stop()
FreeCAD.ActiveDocument.recompute()
if MERGE_MODE == 3:
if DEBUG: print "Joining shapes..."
for host,children in additions.items():
if ifcfile[host].is_a("IfcBuildingStorey"):
compound = []
for c in children:
if c in shapes.keys():
compound.append(shapes[c])
del shapes[c]
if c in additions.keys():
for c2 in additions[c]:
if c2 in shapes.keys():
compound.append(shapes[c2])
del shapes[c2]
if compound:
name = ifcfile[host].Name or "Floor"
if PREFIX_NUMBERS: name = "ID" + str(host) + " " + name
obj = FreeCAD.ActiveDocument.addObject("Part::Feature",name)
obj.Label = name
obj.Shape = Part.makeCompound(compound)
if shapes: # remaining shapes
obj = FreeCAD.ActiveDocument.addObject("Part::Feature","Unclaimed")
obj.Shape = Part.makeCompound(shapes.values())
else:
if DEBUG: print "Processing relationships..."
# subtractions
if SEPARATE_OPENINGS:
for subtraction in subtractions:
if (subtraction[0] in objects.keys()) and (subtraction[1] in objects.keys()):
if DEBUG: print "subtracting ",objects[subtraction[0]].Label, " from ", objects[subtraction[1]].Label
Arch.removeComponents(objects[subtraction[0]],objects[subtraction[1]])
if DEBUG: FreeCAD.ActiveDocument.recompute()
# additions
for host,children in additions.items():
if host in objects.keys():
cobs = [objects[child] for child in children if child in objects.keys()]
if cobs:
if DEBUG and (len(cobs) > 10) and ( not(Draft.getType(objects[host]) in ["Site","Building","Floor"])):
# avoid huge fusions
print "more than 10 shapes to add: skipping."
else:
if DEBUG: print "adding ",len(cobs), " object(s) to ", objects[host].Label
Arch.addComponents(cobs,objects[host])
if DEBUG: FreeCAD.ActiveDocument.recompute()
FreeCAD.ActiveDocument.recompute()
# cleaning bad shapes
for obj in objects.values():
if obj.isDerivedFrom("Part::Feature"):
if obj.Shape.isNull():
Arch.rebuildArchShape(obj)
FreeCAD.ActiveDocument.recompute()
# 2D elements
if DEBUG and annotations: print "Creating 2D geometry..."
for annotation in annotations:
aid = annotation.id()
if aid in skip: continue # user given id skip list
if "IfcAnnotation" in SKIP: continue # preferences-set type skip list
name = "Annotation"
if annotation.Name:
name = annotation.Name.decode("unicode_escape").encode("utf8")
if PREFIX_NUMBERS: name = "ID" + str(aid) + " " + name
shapes2d = []
for repres in annotation.Representation.Representations:
shapes2d.extend(setRepresentation(repres))
if shapes2d:
sh = Part.makeCompound(shapes2d)
pc = str(int((float(count)/(len(products)+len(annotations))*100)))+"% "
if DEBUG: print pc,"creating object ",aid," : Annotation with shape: ",sh
o = FreeCAD.ActiveDocument.addObject("Part::Feature",name)
o.Shape = sh
count += 1
FreeCAD.ActiveDocument.recompute()
# Materials
if DEBUG and materials: print "Creating materials..."
fcmats = {}
for material in materials:
name = "Material"
if material.Name:
name = material.Name.decode("unicode_escape").encode("utf8")
if MERGE_MATERIALS and (name in fcmats.keys()):
mat = fcmats[name]
else:
mat = Arch.makeMaterial(name=name)
mdict = {}
if material.id() in colors:
mdict["Color"] = str(colors[material.id()])
if mdict:
mat.Material = mdict
fcmats[name] = mat
for o,m in mattable.items():
if m == material.id():
if o in objects:
if hasattr(objects[o],"BaseMaterial"):
objects[o].BaseMaterial = mat
FreeCAD.ActiveDocument.recompute()
if FreeCAD.GuiUp:
import FreeCADGui
FreeCADGui.SendMsgToActiveView("ViewFit")
print "Finished importing."
return doc
def export(exportList,filename):
"exports FreeCAD contents to an IFC file"
p = FreeCAD.ParamGet("User parameter:BaseApp/Preferences/Mod/Arch")
FORCEBREP = p.GetBool("ifcExportAsBrep",False)
DEBUG = p.GetBool("ifcDebug",False)
try:
global ifcopenshell
import ifcopenshell
except:
FreeCAD.Console.PrintError("IfcOpenShell was not found on this system. IFC support is disabled\n")
return
if isinstance(filename,unicode):
import sys #workaround since ifcopenshell currently can't handle unicode filenames
filename = filename.encode(sys.getfilesystemencoding())
version = FreeCAD.Version()
owner = FreeCAD.ActiveDocument.CreatedBy
email = ''
if ("@" in owner) and ("<" in owner):
s = owner.split("<")
owner = s[0]
email = s[1].strip(">")
global ifctemplate
ifctemplate = ifctemplate.replace("$version",version[0]+"."+version[1]+" build "+version[2])
ifctemplate = ifctemplate.replace("$owner",owner)
ifctemplate = ifctemplate.replace("$company",FreeCAD.ActiveDocument.Company)
ifctemplate = ifctemplate.replace("$email",email)
ifctemplate = ifctemplate.replace("$now",str(int(time.time())))
ifctemplate = ifctemplate.replace("$projectid",FreeCAD.ActiveDocument.Uid[:22].replace("-","_"))
ifctemplate = ifctemplate.replace("$project",FreeCAD.ActiveDocument.Name)
ifctemplate = ifctemplate.replace("$filename",filename)
ifctemplate = ifctemplate.replace("$timestamp",str(time.strftime("%Y-%m-%dT%H:%M:%S", time.gmtime())))
template = tempfile.mkstemp(suffix=".ifc")[1]
of = pyopen(template,"wb")
of.write(ifctemplate)
of.close()
global ifcfile, surfstyles
ifcfile = ifcopenshell.open(template)
history = ifcfile.by_type("IfcOwnerHistory")[0]
context = ifcfile.by_type("IfcGeometricRepresentationContext")[0]
project = ifcfile.by_type("IfcProject")[0]
objectslist = Draft.getGroupContents(exportList,walls=True,addgroups=True)
objectslist = Arch.pruneIncluded(objectslist)
products = {} # { Name: IfcEntity, ... }
surfstyles = {} # { (r,g,b): IfcEntity, ... }
count = 1
# products
for obj in objectslist:
# getting generic data
name = str(obj.Label.encode("utf8"))
description = str(obj.Description) if hasattr(obj,"Description") else ""
# getting uid
uid = None
if hasattr(obj,"IfcAttributes"):
if "IfcUID" in obj.IfcAttributes.keys():
uid = str(obj.IfcAttributes["IfcUID"])
if not uid:
uid = ifcopenshell.guid.compress(uuid.uuid1().hex)
# setting the IFC type + name conversions
if hasattr(obj,"Role"):
ifctype = obj.Role.replace(" ","")
else:
ifctype = Draft.getType(obj)
if ifctype in translationtable.keys():
ifctype = translationtable[ifctype]
ifctype = "Ifc" + ifctype
if ifctype == "IfcGroup":
continue
ifctypes = []
for v in typesmap.values():
ifctypes.extend(v)
if not ifctype in ifctypes:
ifctype = "IfcBuildingElementProxy"
# getting the "Force BREP" flag
brepflag = False
if hasattr(obj,"IfcAttributes"):
if "FlagForceBrep" in obj.IfcAttributes.keys():
if obj.IfcAttributes["FlagForceBrep"] == "True":
brepflag = True
# getting the representation
representation,placement,shapetype = getRepresentation(ifcfile,context,obj,forcebrep=(brepflag or FORCEBREP))
if DEBUG: print str(count).ljust(3)," : ", ifctype, " (",shapetype,") : ",name
# setting the arguments
args = [uid,history,name,description,None,placement,representation,None]
if ifctype in ["IfcSlab","IfcFooting","IfcRoof"]:
args = args + ["NOTDEFINED"]
elif ifctype in ["IfcWindow","IfcDoor"]:
args = args + [obj.Width.Value/1000.0, obj.Height.Value/1000.0]
elif ifctype == "IfcSpace":
args = args + ["ELEMENT","INTERNAL",obj.Shape.BoundBox.ZMin/1000.0]
elif ifctype == "IfcBuildingElementProxy":
args = args + ["ELEMENT"]
elif ifctype == "IfcSite":
latitude = None
longitude = None
elevation = None
landtitlenumber = None
address = None
args = args + ["ELEMENT",latitude,longitude,elevation,landtitlenumber,address]
elif ifctype == "IfcBuilding":
args = args + ["ELEMENT",None,None,None]
elif ifctype == "IfcBuildingStorey":
args = args + ["ELEMENT",obj.Placement.Base.z]
# creating the product
product = getattr(ifcfile,"create"+ifctype)(*args)
products[obj.Name] = product
# additions
if hasattr(obj,"Additions") and (shapetype == "extrusion"):
for o in obj.Additions:
r2,p2,c2 = getRepresentation(ifcfile,context,o,forcebrep=True)
if DEBUG: print " adding ",c2," : ",str(o.Label)
prod2 = ifcfile.createIfcBuildingElementProxy(ifcopenshell.guid.compress(uuid.uuid1().hex),history,str(o.Label),None,None,p2,r2,None,"ELEMENT")
ifcfile.createIfcRelAggregates(ifcopenshell.guid.compress(uuid.uuid1().hex),history,'Addition','',product,[prod2])
# subtractions
if hasattr(obj,"Subtractions") and (shapetype == "extrusion"):
for o in obj.Subtractions:
r2,p2,c2 = getRepresentation(ifcfile,context,o,forcebrep=True,subtraction=True)
if DEBUG: print " subtracting ",c2," : ",str(o.Label)
prod2 = ifcfile.createIfcOpeningElement(ifcopenshell.guid.compress(uuid.uuid1().hex),history,str(o.Label),None,None,p2,r2,None)
ifcfile.createIfcRelVoidsElement(ifcopenshell.guid.compress(uuid.uuid1().hex),history,'Subtraction','',product,prod2)
# properties
if hasattr(obj,"IfcAttributes"):
props = []
for key in obj.IfcAttributes:
if not (key in ["IfcUID","FlagForceBrep"]):
r = obj.IfcAttributes[key].strip(")").split("(")
if len(r) == 1:
tp = "IfcText"
val = r[0]
else:
tp = r[0]
val = "(".join(r[1:])
val = val.strip("'")
val = val.strip('"')
if DEBUG: print " property ",key," : ",str(val), " (", str(tp), ")"
if tp in ["IfcLabel","IfcText","IfcIdentifier"]:
val = str(val)
elif tp == "IfcBoolean":
if val == ".T.":
val = True
else:
val = False
elif tp == "IfcInteger":
val = int(val)
else:
val = float(val)
props.append(ifcfile.createIfcPropertySingleValue(str(key),None,ifcfile.create_entity(str(tp),val),None))
if props:
pset = ifcfile.createIfcPropertySet(ifcopenshell.guid.compress(uuid.uuid1().hex),history,'PropertySet',None,props)
ifcfile.createIfcRelDefinesByProperties(ifcopenshell.guid.compress(uuid.uuid1().hex),history,None,None,[product],pset)
count += 1
# relationships
sites = []
buildings = []
floors = []
for site in Draft.getObjectsOfType(objectslist,"Site"):
for building in Draft.getObjectsOfType(site.Group,"Building"):
for floor in Draft.getObjectsOfType(building.Group,"Floor"):
children = Draft.getGroupContents(floor,walls=True)
children = Arch.pruneIncluded(children)
children = [products[c.Name] for c in children if c.Name in products.keys()]
floor = products[floor.Name]
ifcfile.createIfcRelContainedInSpatialStructure(ifcopenshell.guid.compress(uuid.uuid1().hex),history,'StoreyLink','',children,floor)
floors.append(floor)
building = products[building.Name]
if floors:
ifcfile.createIfcRelAggregates(ifcopenshell.guid.compress(uuid.uuid1().hex),history,'BuildingLink','',building,floors)
buildings.append(building)
site = products[site.Name]
if buildings:
ifcfile.createIfcRelAggregates(ifcopenshell.guid.compress(uuid.uuid1().hex),history,'SiteLink','',site,buildings)
sites.append(site)
if not sites:
if DEBUG: print "adding default site"
sites = [ifcfile.createIfcSite(ifcopenshell.guid.compress(uuid.uuid1().hex),history,"Default Site",'',None,None,None,None,"ELEMENT",None,None,None,None,None)]
ifcfile.createIfcRelAggregates(ifcopenshell.guid.compress(uuid.uuid1().hex),history,'ProjectLink','',project,sites)
if not buildings:
if DEBUG: print "adding default building"
buildings = [ifcfile.createIfcBuilding(ifcopenshell.guid.compress(uuid.uuid1().hex),history,"Default Building",'',None,None,None,None,"ELEMENT",None,None,None)]
ifcfile.createIfcRelAggregates(ifcopenshell.guid.compress(uuid.uuid1().hex),history,'SiteLink','',sites[0],buildings)
ifcfile.createIfcRelContainedInSpatialStructure(ifcopenshell.guid.compress(uuid.uuid1().hex),history,'BuildingLink','',products.values(),buildings[0])
# materials
materials = {}
for m in Arch.getDocumentMaterials():
mat = ifcfile.createIfcMaterial(str(m.Label))
materials[m.Label] = mat
if "Color" in m.Material:
rgb = tuple([float(f) for f in m.Material['Color'].strip("()").split(",")])
col = ifcfile.createIfcColourRgb(None,rgb[0],rgb[1],rgb[2])
ssr = ifcfile.createIfcSurfaceStyleRendering(col,None,None,None,None,None,None,None,"FLAT")
iss = ifcfile.createIfcSurfaceStyle(None,"BOTH",[ssr])
psa = ifcfile.createIfcPresentationStyleAssignment([iss])
isi = ifcfile.createIfcStyledItem(None,[psa],None)
isr = ifcfile.createIfcStyledRepresentation(context,"Style","Material",[isi])
imd = ifcfile.createIfcMaterialDefinitionRepresentation(None,None,[isr],mat)
relobjs = []
for o in m.InList:
if hasattr(o,"BaseMaterial"):
if o.BaseMaterial:
if o.BaseMaterial.Name == m.Name:
if o.Name in products:
relobjs.append(products[o.Name])
if relobjs:
ifcfile.createIfcRelAssociatesMaterial(ifcopenshell.guid.compress(uuid.uuid1().hex),history,'MaterialLink','',relobjs,mat)
if DEBUG: print "writing ",filename,"..."
ifcfile.write(filename)
def getRepresentation(ifcfile,context,obj,forcebrep=False,subtraction=False,tessellation=1):
"""returns an IfcShapeRepresentation object or None"""
import Part,math,DraftGeomUtils,DraftVecUtils
shapes = []
placement = None
productdef = None
shapetype = "no shape"
if not forcebrep:
profile = None
if hasattr(obj,"Proxy"):
if hasattr(obj.Proxy,"getProfiles"):
p = obj.Proxy.getProfiles(obj,noplacement=True)
extrusionv = obj.Proxy.getExtrusionVector(obj,noplacement=True)
extrusionv.multiply(0.001) # to meters
if (len(p) == 1) and extrusionv:
p = p[0]
p.scale(0.001) # to meters
r = obj.Proxy.getPlacement(obj)
r.Base = r.Base.multiply(0.001) # to meters
if len(p.Edges) == 1:
pxvc = ifcfile.createIfcDirection((1.0,0.0))
povc = ifcfile.createIfcCartesianPoint((0.0,0.0))
pt = ifcfile.createIfcAxis2Placement2D(povc,pxvc)
# extruded circle
if isinstance(p.Edges[0].Curve,Part.Circle):
profile = ifcfile.createIfcCircleProfileDef("AREA",None,pt, p.Edges[0].Curve.Radius)
# extruded ellipse
elif isinstance(p.Edges[0].Curve,Part.Ellipse):
profile = ifcfile.createIfcEllipseProfileDef("AREA",None,pt, p.Edges[0].Curve.MajorRadius, p.Edges[0].Curve.MinorRadius)
else:
curves = False
for e in p.Edges:
if isinstance(e.Curve,Part.Circle):
curves = True
# extruded polyline
if not curves:
w = Part.Wire(DraftGeomUtils.sortEdges(p.Edges))
pts = [ifcfile.createIfcCartesianPoint(tuple(v.Point)[:2]) for v in w.Vertexes+[w.Vertexes[0]]]
pol = ifcfile.createIfcPolyline(pts)
# extruded composite curve
else:
segments = []
last = None
edges = DraftGeomUtils.sortEdges(p.Edges)
for e in edges:
if isinstance(e.Curve,Part.Circle):
follow = True
if last:
if not DraftVecUtils.equals(last,e.Vertexes[0].Point):
follow = False
last = e.Vertexes[0].Point
else:
last = e.Vertexes[-1].Point
else:
last = e.Vertexes[-1].Point
p1 = math.degrees(-DraftVecUtils.angle(e.Vertexes[0].Point.sub(e.Curve.Center)))
p2 = math.degrees(-DraftVecUtils.angle(e.Vertexes[-1].Point.sub(e.Curve.Center)))
da = DraftVecUtils.angle(e.valueAt(e.FirstParameter+0.1).sub(e.Curve.Center),e.Vertexes[0].Point.sub(e.Curve.Center))
if p1 < 0:
p1 = 360 + p1
if p2 < 0:
p2 = 360 + p2
if da > 0:
follow = not(follow)
xvc = ifcfile.createIfcDirection((1.0,0.0))
ovc = ifcfile.createIfcCartesianPoint(tuple(e.Curve.Center)[:2])
plc = ifcfile.createIfcAxis2Placement2D(ovc,xvc)
cir = ifcfile.createIfcCircle(plc,e.Curve.Radius)
curve = ifcfile.createIfcTrimmedCurve(cir,[ifcfile.createIfcParameterValue(p1)],[ifcfile.createIfcParameterValue(p2)],follow,"PARAMETER")
else:
verts = [vertex.Point for vertex in e.Vertexes]
if last:
if not DraftVecUtils.equals(last,verts[0]):
verts.reverse()
last = e.Vertexes[0].Point
else:
last = e.Vertexes[-1].Point
else:
last = e.Vertexes[-1].Point
pts = [ifcfile.createIfcCartesianPoint(tuple(v)[:2]) for v in verts]
curve = ifcfile.createIfcPolyline(pts)
segment = ifcfile.createIfcCompositeCurveSegment("CONTINUOUS",True,curve)
segments.append(segment)
pol = ifcfile.createIfcCompositeCurve(segments,False)
profile = ifcfile.createIfcArbitraryClosedProfileDef("AREA",None,pol)
if profile:
xvc = ifcfile.createIfcDirection(tuple(r.Rotation.multVec(FreeCAD.Vector(1,0,0))))
zvc = ifcfile.createIfcDirection(tuple(r.Rotation.multVec(FreeCAD.Vector(0,0,1))))
ovc = ifcfile.createIfcCartesianPoint(tuple(r.Base))
lpl = ifcfile.createIfcAxis2Placement3D(ovc,zvc,xvc)
edir = ifcfile.createIfcDirection(tuple(FreeCAD.Vector(extrusionv).normalize()))
shape = ifcfile.createIfcExtrudedAreaSolid(profile,lpl,edir,extrusionv.Length)
shapes.append(shape)
solidType = "SweptSolid"
shapetype = "extrusion"
if not shapes:
# brep representation
fcshape = None
solidType = "Brep"
if subtraction:
if hasattr(obj,"Proxy"):
if hasattr(obj.Proxy,"getSubVolume"):
fcshape = obj.Proxy.getSubVolume(obj)
if not fcshape: