def addProduct(self,elttype,shapes,storey=None,placement=None,name="Unnamed element",description=None,extra=None):
"""addProduct(elttype,representations,[storey,placement,name,description,extra]): creates an element of the given type
(IfcWall, IfcBeam, etc...) with the given attributes, plus the given extra attributes."""
elttype = str(elttype)
if not extra:
extra = []
if not description:
description = None
if not placement:
placement = self.addPlacement()
representations = self.addRepresentations(shapes)
prd = create(self._fileobject,"IfcProductDefinitionShape",[None,None,representations])
try:
elt = create(self._fileobject,elttype,[uid(),self._owner,name,description,None,placement,prd,None]+extra)
except:
print "unable to create an ",elttype, " with attributes: ",[uid(),self._owner,str(name),description,None,placement,prd,None]+extra
try:
if hasattr(ifcw,"Entity"):
o = ifcw.Entity(elttype)
else:
o = ifcw.entity_instance(elttype)
print "supported attributes are: "
print getPropertyNames(o)
except:
print "unable to create an element of type '"+elttype+"'"
print "WARNING: skipping object '"+name+"' of type "+elttype
return None
self.BuildingProducts.append(elt)
if not storey:
if self.Storeys:
storey = self.Storeys[0]
else:
storey = self.addStorey()
self._relate(storey,elt)
return elt
def __init__(self,filepath="",name="",owner="",organization="",application="Python IFC exporter",version="0.0"):
if hasattr(ifcw,"IfcFile"):
self._fileobject = ifcw.IfcFile()
else:
self._fileobject = ifcw.file()
self._person = create(self._fileobject,"IfcPerson",[None,None,"",None,None,None,None,None])
self._org = create(self._fileobject,"IfcOrganization",[None,"",None,None,None])
pno = create(self._fileobject,"IfcPersonAndOrganization",[self._person,self._org,None])
app = create(self._fileobject,"IfcApplication",[self._org,version,application,uid()])
self._owner = create(self._fileobject,"IfcOwnerHistory",[pno,app,None,"ADDED",None,pno,app,now()])
axp = self.addPlacement(local=False)
dim0 = create(self._fileobject,"IfcDirection",getTuple((0,1,0)))
self._repcontext = create(self._fileobject,"IfcGeometricRepresentationContext",['Plan','Model',3,1.E-05,axp,dim0])
dim1 = create(self._fileobject,"IfcDimensionalExponents",[0,0,0,0,0,0,0])
dim2 = create(self._fileobject,"IfcSIUnit",[dim1,"LENGTHUNIT","MILLI","METRE"])
dim3 = create(self._fileobject,"IfcSIUnit",[dim1,"AREAUNIT",None,"SQUARE_METRE"])
dim4 = create(self._fileobject,"IfcSIUnit",[dim1,"VOLUMEUNIT",None,"CUBIC_METRE"])
dim6 = create(self._fileobject,"IfcSIUnit",[dim1,"PLANEANGLEUNIT",None,"RADIAN"])
dim7 = create(None,"IfcPlaneAngleMeasure",[1.745E-2])
dim8 = create(self._fileobject,"IfcMeasureWithUnit",[dim7,dim6])
dim9 = create(self._fileobject,"IfcConversionBasedUnit",[dim1,"PLANEANGLEUNIT","DEGREE",dim8])
units = create(self._fileobject,"IfcUnitAssignment",[[dim2,dim3,dim4,dim9]])
self.Project = create(self._fileobject,"IfcProject",[uid(),self._owner,None,None,None,None,None,[self._repcontext],units])
self.Site = None
self._storeyRelations = {}
self.BuildingProducts = []
self.Storeys = []
self.Buildings = []
self.FilePath = filepath
self.Owner = owner
self.Organization = organization
self.Name = name
def readOpenShell(filename, useParser=False):
"Parses an IFC file with IfcOpenShell"
altifc = None
if useParser:
altifc = parseFile(filename)
if getIfcOpenShell():
USESHAPES = False
if hasattr(IfcImport, "USE_BREP_DATA"):
IfcImport.Settings(IfcImport.USE_BREP_DATA, True)
USESHAPES = True
if IfcImport.Init(filename):
while True:
obj = IfcImport.Get()
if DEBUG:
print "parsing ", obj.id, ": ", obj.name, " of type ", obj.type
meshdata = []
n = obj.name
if not n: n = "Unnamed"
if obj.type in SKIP:
pass
elif altifc and (obj.type == "IfcWallStandardCase"):
if USESHAPES:
makeWall(altifc.Entities[obj.id], shape=getShape(obj))
else:
makeWall(altifc.Entities[obj.id])
elif USESHAPES:
# treat as Parts
sh = getShape(obj)
nobj = FreeCAD.ActiveDocument.addObject("Part::Feature", n)
nobj.Shape = sh
else:
# treat as meshes
me, pl = getMesh(obj)
nobj = FreeCAD.ActiveDocument.addObject("Mesh::Feature", n)
nobj.Mesh = me
nobj.Placement = pl
if not IfcImport.Next():
break
IfcImport.CleanUp()
return None
def create(ifcdoc=None,ifcname=None,arguments=[]):
"""create(ifcdoc,ifcname,[arguments]):creates an entity
of the given name in the given document and optionally
gives it an ordered list of arguments"""
entity = IfcImport.Entity(ifcname)
if ifcdoc:
ifcdoc.add(entity)
# this is a temporary hack while ifcopenshell has no ref counting
holder.refs.append(entity)
if not isinstance(arguments,list):
arguments = [arguments]
for i in range(len(arguments)):
arg = arguments[i]
if isinstance(arg,tuple):
if len(arg) in [2,3]:
arg = IfcImport.Doubles(arg)
entity.set_argument(i,arg)
return entity
def getShape(obj,objid):
"gets a shape from an IfcOpenShell object"
#print "retrieving shape from obj ",objid
import Part
sh=Part.Shape()
brep_data = None
if IFCOPENSHELL5:
try:
brep_data = IfcImport.create_shape(obj)
except:
print "Unable to retrieve shape data"
else:
brep_data = obj.mesh.brep_data
if brep_data:
try:
if MAKETEMPFILES:
import tempfile
tf = tempfile.mkstemp(suffix=".brp")[1]
of = pyopen(tf,"wb")
of.write(brep_data)
of.close()
sh = Part.read(tf)
os.remove(tf)
else:
sh.importBrepFromString(brep_data)
except:
print "Error: malformed shape"
return None
else:
if IFCOPENSHELL5 and ADDPLACEMENT:
sh.Placement = getPlacement(getAttr(obj,"ObjectPlacement"))
if not sh.Solids:
# try to extract a solid shape
if sh.Faces:
try:
if DEBUG: print "Malformed solid. Attempting to fix..."
shell = Part.makeShell(sh.Faces)
if shell:
solid = Part.makeSolid(shell)
if solid:
sh = solid
except:
if DEBUG: print "failed to retrieve solid from object ",objid
else:
if DEBUG: print "object ", objid, " doesn't contain any geometry"
if not IFCOPENSHELL5:
m = obj.matrix
mat = FreeCAD.Matrix(m[0], m[3], m[6], m[9],
m[1], m[4], m[7], m[10],
m[2], m[5], m[8], m[11],
0, 0, 0, 1)
sh.Placement = FreeCAD.Placement(mat)
# if DEBUG: print "getting Shape from ",obj
#print "getting shape: ",sh,sh.Solids,sh.Volume,sh.isValid(),sh.isNull()
#for v in sh.Vertexes: print v.Point
return sh
def getShape(obj,objid):
"gets a shape from an IfcOpenShell object"
#print "retrieving shape from obj ",objid
import Part
sh=Part.Shape()
brep_data = None
if IOC_ADVANCED:
try:
brep_data = IfcImport.create_shape(obj)
except:
print "Unable to retrieve shape data"
else:
brep_data = obj.mesh.brep_data
if brep_data:
try:
if MAKETEMPFILES:
import tempfile
tf = tempfile.mkstemp(suffix=".brp")[1]
of = pyopen(tf,"wb")
of.write(brep_data)
of.close()
sh = Part.read(tf)
os.remove(tf)
else:
sh.importBrepFromString(brep_data)
except:
print "Error: malformed shape"
return None
if not sh.Solids:
# try to extract a solid shape
if sh.Faces:
try:
if DEBUG: print "Malformed solid. Attempting to fix..."
shell = Part.makeShell(sh.Faces)
if shell:
solid = Part.makeSolid(shell)
if solid:
sh = solid
except:
if DEBUG: print "failed to retrieve solid from object ",objid
else:
if DEBUG: print "object ", objid, " doesn't contain any geometry"
if not IOC_ADVANCED:
m = obj.matrix
mat = FreeCAD.Matrix(m[0], m[3], m[6], m[9],
m[1], m[4], m[7], m[10],
m[2], m[5], m[8], m[11],
0, 0, 0, 1)
sh.Placement = FreeCAD.Placement(mat)
# if DEBUG: print "getting Shape from ",obj
#print "getting shape: ",sh,sh.Solids,sh.Volume,sh.isValid(),sh.isNull()
#for v in sh.Vertexes: print v.Point
return sh
def create(ifcdoc=None,ifcname=None,arguments=[]):
"""create(ifcdoc,ifcname,[arguments]):creates an entity
of the given name in the given document and optionally
gives it an ordered list of arguments"""
if hasattr(ifcw,"Entity"):
entity = ifcw.Entity(ifcname)
else:
entity = ifcw.entity_instance(ifcname)
if ifcdoc:
ifcdoc.add(entity)
# this is a temporary hack while ifcopenshell has no ref counting
holder.refs.append(entity)
if not isinstance(arguments,list):
arguments = [arguments]
for i in range(len(arguments)):
arg = arguments[i]
if isinstance(arg,tuple):
if len(arg) in [2,3]:
if hasattr(ifcw,"Doubles"):
arg = ifcw.Doubles(arg)
else:
arg = ifcw.doubles(arg)
entity.set_argument(i,arg)
return entity
def new():
"""new(): returns a new empty ifc file holder"""
fil = IfcImport.IfcFile()
return fil
def read(filename):
"Parses an IFC file"
# parsing the IFC file
t1 = time.time()
num_lines = sum(1 for line in pyopen(filename))
if getIfcOpenShell() and not FORCE_PYTHON_PARSER:
# use the IfcOpenShell parser
# preparing IfcOpenShell
if DEBUG: global ifcObjects, ifcParents
ifcObjects = {} # a table to relate ifc id with freecad object
ifcParents = {} # a table to relate ifc id with parent id
if hasattr(IfcImport,
"DISABLE_OPENING_SUBTRACTIONS") and SEPARATE_OPENINGS:
IfcImport.Settings(IfcImport.DISABLE_OPENING_SUBTRACTIONS, True)
else:
SKIP.append("IfcOpeningElement")
useShapes = False
if hasattr(IfcImport, "USE_BREP_DATA"):
IfcImport.Settings(IfcImport.USE_BREP_DATA, True)
useShapes = True
else:
if DEBUG:
print "Warning: IfcOpenShell version very old, unable to handle Brep data"
# processing geometry
if IfcImport.Init(filename):
while True:
obj = IfcImport.Get()
if DEBUG:
print "[" + str(
int((float(obj.id) / num_lines) * 100)
) + "%] parsing ", obj.id, ": ", obj.name, " of type ", obj.type
# retrieving name
n = getName(obj)
# skip types
if obj.type in SKIP:
if DEBUG: print "skipping because type is in skip list"
nobj = None
else:
# build shape
shape = None
if useShapes:
shape = getShape(obj)
# walls
if obj.type in ["IfcWallStandardCase", "IfcWall"]:
nobj = makeWall(obj.id, shape, n)
# windows
elif obj.type in ["IfcWindow", "IfcDoor"]:
nobj = makeWindow(obj.id, shape, n)
# structs
elif obj.type in [
"IfcBeam", "IfcColumn", "IfcSlab", "IfcFooting"
]:
nobj = makeStructure(obj.id, shape, n)
# roofs
elif obj.type in ["IfcRoof"]:
nobj = makeRoof(obj.id, shape, n)
# furniture
elif obj.type in ["IfcFurnishingElement"]:
nobj = FreeCAD.ActiveDocument.addObject(
"Part::Feature", n)
nobj.Shape = shape
# sites
elif obj.type in ["IfcSite"]:
nobj = makeSite(obj.id, shape, n)
# spaces
elif obj.type in ["IfcSpace"]:
nobj = makeSpace(obj.id, shape, n)
elif shape:
# treat as dumb parts
#if DEBUG: print "Fixme: Shape-containing object not handled: ",obj.id, " ", obj.type
nobj = FreeCAD.ActiveDocument.addObject(
"Part::Feature", n)
nobj.Shape = shape
else:
# treat as meshes
if DEBUG:
print "Warning: Object without shape: ", obj.id, " ", obj.type
me, pl = getMesh(obj)
nobj = FreeCAD.ActiveDocument.addObject(
"Mesh::Feature", n)
nobj.Mesh = me
nobj.Placement = pl
# registering object number and parent
if obj.parent_id > 0:
ifcParents[obj.id] = [
obj.parent_id, not (obj.type in subtractiveTypes)
]
ifcObjects[obj.id] = nobj
if not IfcImport.Next():
break
# processing non-geometry and relationships
parents_temp = dict(ifcParents)
import ArchCommands
while parents_temp:
id, c = parents_temp.popitem()
parent_id = c[0]
additive = c[1]
if (id <= 0) or (parent_id <= 0):
# root dummy object
parent = None
elif parent_id in ifcObjects:
parent = ifcObjects[parent_id]
# check if parent is a subtraction, if yes parent to grandparent
if parent_id in ifcParents:
if ifcParents[parent_id][1] == False:
grandparent_id = ifcParents[parent_id][0]
if grandparent_id in ifcObjects:
parent = ifcObjects[grandparent_id]
else:
# creating parent if needed
parent_ifcobj = IfcImport.GetObject(parent_id)
if DEBUG:
print "[" + str(
int((float(parent_ifcobj.id) / num_lines) * 100)
) + "%] parsing ", parent_ifcobj.id, ": ", parent_ifcobj.name, " of type ", parent_ifcobj.type
n = getName(parent_ifcobj)
if parent_ifcobj.id <= 0:
parent = None
elif parent_ifcobj.type == "IfcBuildingStorey":
parent = Arch.makeFloor(name=n)
elif parent_ifcobj.type == "IfcBuilding":
parent = Arch.makeBuilding(name=n)
elif parent_ifcobj.type == "IfcSite":
parent = Arch.makeSite(name=n)
elif parent_ifcobj.type == "IfcWindow":
parent = Arch.makeWindow(name=n)
else:
if DEBUG:
print "Fixme: skipping unhandled parent: ", parent_ifcobj.id, " ", parent_ifcobj.type
parent = None
# registering object number and parent
if parent_ifcobj.parent_id > 0:
ifcParents[parent_ifcobj.id] = [
parent_ifcobj.parent_id, True
]
parents_temp[parent_ifcobj.id] = [
parent_ifcobj.parent_id, True
]
if parent and (not parent_ifcobj.id in ifcObjects):
ifcObjects[parent_ifcobj.id] = parent
# attributing parent
if parent and (id in ifcObjects):
if ifcObjects[id]:
if additive:
ArchCommands.addComponents(ifcObjects[id], parent)
else:
ArchCommands.removeComponents(ifcObjects[id], parent)
IfcImport.CleanUp()
else:
# use only the internal python parser
FreeCAD.Console.PrintWarning(
str(
translate(
"Arch",
"IfcOpenShell not found, falling back on internal parser.\n"
)))
schema = getSchema()
if schema:
if DEBUG: global ifc
if DEBUG: print "opening", filename, "..."
ifc = ifcReader.IfcDocument(filename, schema=schema, debug=DEBUG)
else:
FreeCAD.Console.PrintWarning(
str(
translate("Arch",
"IFC Schema not found, IFC import disabled.\n")))
return None
t2 = time.time()
if DEBUG: print "Successfully loaded", ifc, "in %s s" % ((t2 - t1))
# getting walls
for w in ifc.getEnt("IfcWallStandardCase"):
nobj = makeWall(w)
# getting windows and doors
for w in (ifc.getEnt("IfcWindow") + ifc.getEnt("IfcDoor")):
nobj = makeWindow(w)
# getting structs
for w in (ifc.getEnt("IfcSlab") + ifc.getEnt("IfcBeam") + ifc.getEnt("IfcColumn") \
+ ifc.getEnt("IfcFooting")):
nobj = makeStructure(w)
# getting floors
for f in ifc.getEnt("IfcBuildingStorey"):
group(f, ifc, "Floor")
# getting buildings
for b in ifc.getEnt("IfcBuilding"):
group(b, ifc, "Building")
# getting sites
for s in ifc.getEnt("IfcSite"):
group(s, ifc, "Site")
if DEBUG: print "done parsing. Recomputing..."
FreeCAD.ActiveDocument.recompute()
t3 = time.time()
if DEBUG: print "done processing IFC file in %s s" % ((t3 - t1))
return None
def read(filename):
"Parses an IFC file"
# parsing the IFC file
t1 = time.time()
schema = getSchema()
if schema:
if DEBUG: global ifc
if DEBUG: print "opening", filename, "..."
ifc = ifcReader.IfcDocument(filename, schema=schema, debug=DEBUG)
else:
FreeCAD.Console.PrintWarning(
str(
translate("Arch",
"IFC Schema not found, IFC import disabled.\n")))
return None
t2 = time.time()
if DEBUG: print "Successfully loaded", ifc, "in %s s" % ((t2 - t1))
if useIfcOpenShell and getIfcOpenShell():
# use the IfcOpenShell parser
useShapes = False
if hasattr(IfcImport, "USE_BREP_DATA"):
IfcImport.Settings(IfcImport.USE_BREP_DATA, True)
useShapes = True
if IfcImport.Init(filename):
while True:
obj = IfcImport.Get()
if DEBUG:
print "parsing ", obj.id, ": ", obj.name, " of type ", obj.type
meshdata = []
# retrieving name
n = obj.name
if not n:
n = "Unnamed"
# build shape
shape = None
if useShapes:
shape = getShape(obj)
# skip types
if obj.type in SKIP:
pass
# walls
elif obj.type == "IfcWallStandardCase":
makeWall(ifc.Entities[obj.id], shape)
# windows
elif obj.type in ["IfcWindow", "IfcDoor"]:
makeWindow(ifc.Entities[obj.id], shape)
# structs
elif obj.type in ["IfcBeam", "IfcColumn", "IfcSlab"]:
makeStructure(ifc.Entities[obj.id], shape)
# furniture
elif obj.type == "IfcFurnishingElement":
nobj = FreeCAD.ActiveDocument.addObject(
"Part::Feature", "Furniture")
nobj.Shape = shape
elif shape:
# treat as dumb parts
nobj = FreeCAD.ActiveDocument.addObject("Part::Feature", n)
nobj.Shape = shape
else:
# treat as meshes
me, pl = getMesh(obj)
nobj = FreeCAD.ActiveDocument.addObject("Mesh::Feature", n)
nobj.Mesh = me
nobj.Placement = pl
if not IfcImport.Next():
break
IfcImport.CleanUp()
else:
# use only the internal python parser
# getting walls
for w in ifc.getEnt("IfcWallStandardCase"):
makeWall(w)
# getting windows and doors
for w in (ifc.getEnt("IfcWindow") + ifc.getEnt("IfcDoor")):
makeWindow(w)
# getting structs
for w in (ifc.getEnt("IfcSlab") + ifc.getEnt("IfcBeam") +
ifc.getEnt("IfcColumn")):
makeStructure(w)
order(ifc)
FreeCAD.ActiveDocument.recompute()
t3 = time.time()
if DEBUG: print "done processing", ifc, "in %s s" % ((t3 - t1))
return None
def read(filename):
"Parses an IFC file"
# parsing the IFC file
t1 = time.time()
processedIds = []
if getIfcOpenShell() and not FORCE_PYTHON_PARSER:
# use the IfcOpenShell parser
# check for IFcOpenShellVersion
global IOC_ADVANCED
if hasattr(IfcImport,"IfcFile"):
IOC_ADVANCED = True
else:
IOC_ADVANCED = False
# preparing IfcOpenShell
if DEBUG: global ifcObjects,ifcParents
ifcObjects = {} # a table to relate ifc id with freecad object
ifcParents = {} # a table to relate ifc id with parent id
if SEPARATE_OPENINGS:
if hasattr(IfcImport,"DISABLE_OPENING_SUBTRACTIONS"):
IfcImport.Settings(IfcImport.DISABLE_OPENING_SUBTRACTIONS,True)
else:
SKIP.append("IfcOpeningElement")
useShapes = False
if IOC_ADVANCED:
useShapes = True
elif hasattr(IfcImport,"USE_BREP_DATA"):
IfcImport.Settings(IfcImport.USE_BREP_DATA,True)
useShapes = True
else:
if DEBUG: print "Warning: IfcOpenShell version very old, unable to handle Brep data"
# opening file
if IOC_ADVANCED:
global ifc
ifc = IfcImport.open(filename)
objects = ifc.by_type("IfcProduct")
num_lines = len(objects)
relations = ifc.by_type("IfcRelAggregates") + ifc.by_type("IfcRelContainedInSpatialStructure") + ifc.by_type("IfcRelVoidsElement")
if not objects:
print "Error opening IFC file"
return
else:
num_lines = sum(1 for line in pyopen(filename))
if not IfcImport.Init(filename):
print "Error opening IFC file"
return
# processing geometry
idx = 0
while True:
if IOC_ADVANCED:
obj = objects[idx]
idx += 1
objid = int(str(obj).split("=")[0].strip("#"))
objname = obj.get_argument(obj.get_argument_index("Name"))
objtype = str(obj).split("=")[1].split("(")[0]
objparentid = -1
for r in relations:
if r.is_a("IfcRelAggregates"):
for c in getAttr(r,"RelatedObjects"):
if str(obj) == str(c):
objparentid = int(str(getAttr(r,"RelatingObject")).split("=")[0].strip("#"))
elif r.is_a("IfcRelContainedInSpatialStructure"):
for c in getAttr(r,"RelatedElements"):
if str(obj) == str(c):
objparentid = int(str(getAttr(r,"RelatingStructure")).split("=")[0].strip("#"))
elif r.is_a("IfcRelVoidsElement"):
if str(obj) == str(getAttr(r,"RelatedOpeningElement")):
objparentid = int(str(getAttr(r,"RelatingBuildingElement")).split("=")[0].strip("#"))
else:
if hasattr(IfcImport, 'GetBrepData'):
obj = IfcImport.GetBrepData()
else:
obj = IfcImport.Get()
objid = obj.id
idx = objid
objname = obj.name
objtype = obj.type
objparentid = obj.parent_id
if DEBUG: print "["+str(int((float(idx)/num_lines)*100))+"%] parsing ",objid,": ",objname," of type ",objtype
# retrieving name
n = getCleanName(objname,objid,objtype)
# skip types
if objtype in SKIP:
if DEBUG: print "skipping because type is in skip list"
nobj = None
# check if object was already processed, to workaround an ifcopenshell bug
elif objid in processedIds:
if DEBUG: print "skipping because this object was already processed"
else:
# build shape
shape = None
if useShapes:
shape = getShape(obj,objid)
# walls
if objtype in ["IfcWallStandardCase","IfcWall"]:
nobj = makeWall(objid,shape,n)
# windows
elif objtype in ["IfcWindow","IfcDoor"]:
nobj = makeWindow(objid,shape,n)
# structs
elif objtype in ["IfcBeam","IfcColumn","IfcSlab","IfcFooting"]:
nobj = makeStructure(objid,shape,objtype,n)
# roofs
elif objtype in ["IfcRoof"]:
nobj = makeRoof(objid,shape,n)
# furniture
elif objtype in ["IfcFurnishingElement"]:
nobj = FreeCAD.ActiveDocument.addObject("Part::Feature",n)
nobj.Shape = shape
# sites
elif objtype in ["IfcSite"]:
nobj = makeSite(objid,shape,n)
# floors
elif objtype in ["IfcBuildingStorey"]:
nobj = Arch.makeFloor(name=n)
nobj.Label = n
# floors
elif objtype in ["IfcBuilding"]:
nobj = Arch.makeBuilding(name=n)
nobj.Label = n
# spaces
elif objtype in ["IfcSpace"]:
nobj = makeSpace(objid,shape,n)
elif shape:
# treat as dumb parts
#if DEBUG: print "Fixme: Shape-containing object not handled: ",obj.id, " ", obj.type
nobj = FreeCAD.ActiveDocument.addObject("Part::Feature",n)
nobj.Label = n
nobj.Shape = shape
else:
# treat as meshes
if DEBUG: print "Warning: Object without shape: ",objid, " ", objtype
if hasattr(obj,"mesh"):
if not hasattr(obj.mesh, 'verts'):
obj = IfcImport.Get() # Get triangulated rep of same product
me,pl = getMesh(obj)
nobj = FreeCAD.ActiveDocument.addObject("Mesh::Feature",n)
nobj.Label = n
nobj.Mesh = me
nobj.Placement = pl
else:
if DEBUG: print "Error: Skipping object without mesh: ",objid, " ", objtype
# registering object number and parent
if objparentid > 0:
ifcParents[objid] = [objparentid,not (objtype in subtractiveTypes)]
ifcObjects[objid] = nobj
processedIds.append(objid)
if IOC_ADVANCED:
if idx >= len(objects):
break
else:
if not IfcImport.Next():
break
# processing non-geometry and relationships
parents_temp = dict(ifcParents)
import ArchCommands
#print parents_temp
while parents_temp:
id, c = parents_temp.popitem()
parent_id = c[0]
additive = c[1]
if (id <= 0) or (parent_id <= 0):
# root dummy object
parent = None
elif parent_id in ifcObjects:
parent = ifcObjects[parent_id]
# check if parent is a subtraction, if yes parent to grandparent
if parent_id in ifcParents:
if ifcParents[parent_id][1] == False:
grandparent_id = ifcParents[parent_id][0]
if grandparent_id in ifcObjects:
parent = ifcObjects[grandparent_id]
else:
# creating parent if needed
if IOC_ADVANCED:
parent_ifcobj = ifc.by_id(parent_id)
parentid = int(str(obj).split("=")[0].strip("#"))
parentname = obj.get_argument(obj.get_argument_index("Name"))
parenttype = str(obj).split("=")[1].split("(")[0]
else:
parent_ifcobj = IfcImport.GetObject(parent_id)
parentid = obj.id
parentname = obj.name
parenttype = obj.type
#if DEBUG: print "["+str(int((float(idx)/num_lines)*100))+"%] parsing ",parentid,": ",parentname," of type ",parenttype
n = getCleanName(parentname,parentid,parenttype)
if parentid <= 0:
parent = None
elif parenttype == "IfcBuildingStorey":
parent = Arch.makeFloor(name=n)
parent.Label = n
elif parenttype == "IfcBuilding":
parent = Arch.makeBuilding(name=n)
parent.Label = n
elif parenttype == "IfcSite":
parent = Arch.makeSite(name=n)
parent.Label = n
elif parenttype == "IfcWindow":
parent = Arch.makeWindow(name=n)
parent.Label = n
else:
if DEBUG: print "Fixme: skipping unhandled parent: ", parentid, " ", parenttype
parent = None
# registering object number and parent
if not IOC_ADVANCED:
if parent_ifcobj.parent_id > 0:
ifcParents[parentid] = [parent_ifcobj.parent_id,True]
parents_temp[parentid] = [parent_ifcobj.parent_id,True]
if parent and (not parentid in ifcObjects):
ifcObjects[parentid] = parent
# attributing parent
if parent and (id in ifcObjects):
if ifcObjects[id] and (ifcObjects[id].Name != parent.Name):
if additive:
if DEBUG: print "adding ",ifcObjects[id].Name, " to ",parent.Name
ArchCommands.addComponents(ifcObjects[id],parent)
else:
if DEBUG: print "removing ",ifcObjects[id].Name, " from ",parent.Name
ArchCommands.removeComponents(ifcObjects[id],parent)
if not IOC_ADVANCED:
IfcImport.CleanUp()
else:
# use only the internal python parser
FreeCAD.Console.PrintWarning(translate("Arch","IfcOpenShell not found or disabled, falling back on internal parser.\n"))
schema=getSchema()
if schema:
if DEBUG: print "opening",filename,"..."
ifc = ifcReader.IfcDocument(filename,schema=schema,debug=DEBUG)
else:
FreeCAD.Console.PrintWarning(translate("Arch","IFC Schema not found, IFC import disabled.\n"))
return None
t2 = time.time()
if DEBUG: print "Successfully loaded",ifc,"in %s s" % ((t2-t1))
# getting walls
for w in ifc.getEnt("IfcWallStandardCase"):
nobj = makeWall(w)
# getting windows and doors
for w in (ifc.getEnt("IfcWindow") + ifc.getEnt("IfcDoor")):
nobj = makeWindow(w)
# getting structs
for w in (ifc.getEnt("IfcSlab") + ifc.getEnt("IfcBeam") + ifc.getEnt("IfcColumn") \
+ ifc.getEnt("IfcFooting")):
nobj = makeStructure(w)
# getting floors
for f in ifc.getEnt("IfcBuildingStorey"):
group(f,ifc,"Floor")
# getting buildings
for b in ifc.getEnt("IfcBuilding"):
group(b,ifc,"Building")
# getting sites
for s in ifc.getEnt("IfcSite"):
group(s,ifc,"Site")
if DEBUG: print "done parsing. Recomputing..."
FreeCAD.ActiveDocument.recompute()
t3 = time.time()
if DEBUG: print "done processing IFC file in %s s" % ((t3-t1))
return None
def getShape(obj,objid):
"gets a shape from an IfcOpenShell object"
#print "retrieving shape from obj ",objid
import Part
sh=Part.Shape()
brep_data = None
if IFCOPENSHELL5:
try:
if SEPARATE_OPENINGS and hasattr(IfcImport,"DISABLE_OPENING_SUBTRACTIONS"):
if SEPARATE_PLACEMENTS and hasattr(IfcImport,"DISABLE_OBJECT_PLACEMENT"):
brep_data = IfcImport.create_shape(obj,IfcImport.DISABLE_OPENING_SUBTRACTIONS | IfcImport.DISABLE_OBJECT_PLACEMENT)
else:
brep_data = IfcImport.create_shape(obj,IfcImport.DISABLE_OPENING_SUBTRACTIONS)
else:
if SEPARATE_PLACEMENTS and hasattr(IfcImport,"DISABLE_OBJECT_PLACEMENT"):
brep_data = IfcImport.create_shape(obj,IfcImport.DISABLE_OBJECT_PLACEMENT)
else:
brep_data = IfcImport.create_shape(obj)
except:
print "Unable to retrieve shape data"
else:
brep_data = obj.mesh.brep_data
if brep_data:
try:
if MAKETEMPFILES:
import tempfile
tf = tempfile.mkstemp(suffix=".brp")[1]
of = pyopen(tf,"wb")
of.write(brep_data)
of.close()
sh = Part.read(tf)
os.remove(tf)
else:
sh.importBrepFromString(brep_data)
except:
print " error: malformed shape"
return None
else:
if IFCOPENSHELL5 and SEPARATE_PLACEMENTS:
p = getPlacement(getAttr(obj,"ObjectPlacement"))
if p:
sh.Placement = p
if not sh.Solids:
# try to extract a solid shape
if sh.Faces:
try:
if DEBUG: print " malformed solid. Attempting to fix..."
shell = Part.makeShell(sh.Faces)
if shell:
solid = Part.makeSolid(shell)
if solid:
sh = solid
except:
if DEBUG: print " failed to retrieve solid from object ",objid
else:
if DEBUG: print " object ", objid, " doesn't contain any geometry"
if not IFCOPENSHELL5:
m = obj.matrix
mat = FreeCAD.Matrix(m[0], m[3], m[6], m[9],
m[1], m[4], m[7], m[10],
m[2], m[5], m[8], m[11],
0, 0, 0, 1)
sh.Placement = FreeCAD.Placement(mat)
# if DEBUG: print "getting Shape from ",obj
#print "getting shape: ",sh,sh.Solids,sh.Volume,sh.isValid(),sh.isNull()
#for v in sh.Vertexes: print v.Point
return sh
def read(filename,skip=None):
"Parses an IFC file"
# parsing the IFC file
t1 = time.time()
processedIds = []
skipIds = skip
if not skipIds:
skipIds = []
elif isinstance(skipIds,int):
skipIds = [skipIds]
if getIfcOpenShell() and not FORCE_PYTHON_PARSER:
# use the IfcOpenShell parser
# check for IFcOpenShellVersion
global IFCOPENSHELL5
if hasattr(IfcImport,"IfcFile"):
IFCOPENSHELL5 = True
else:
IFCOPENSHELL5 = False
# preparing IfcOpenShell
if DEBUG: global ifcObjects,ifcParents
ifcObjects = {} # a table to relate ifc id with freecad object
ifcParents = {} # a table to relate ifc id with parent id
if SEPARATE_OPENINGS:
if not IFCOPENSHELL5:
if hasattr(IfcImport,"DISABLE_OPENING_SUBTRACTIONS"):
IfcImport.Settings(IfcImport.DISABLE_OPENING_SUBTRACTIONS,True)
else:
SKIP.append("IfcOpeningElement")
useShapes = False
if IFCOPENSHELL5:
useShapes = True
if hasattr(IfcImport,"clean"):
IfcImport.clean()
elif hasattr(IfcImport,"USE_BREP_DATA"):
IfcImport.Settings(IfcImport.USE_BREP_DATA,True)
useShapes = True
else:
if DEBUG: print "Warning: IfcOpenShell version very old, unable to handle Brep data"
# opening file
if IFCOPENSHELL5:
global ifc
ifc = IfcImport.open(filename)
objects = ifc.by_type("IfcProduct")
num_lines = len(objects)
relations = ifc.by_type("IfcRelAggregates") + ifc.by_type("IfcRelContainedInSpatialStructure") + ifc.by_type("IfcRelVoidsElement")
if not objects:
print "Error opening IFC file"
return
else:
num_lines = sum(1 for line in pyopen(filename))
if not IfcImport.Init(filename):
print "Error opening IFC file"
return
# processing geometry
idx = 0
while True:
objparentid = []
if IFCOPENSHELL5:
obj = objects[idx]
idx += 1
objid = int(str(obj).split("=")[0].strip("#"))
objname = obj.get_argument(obj.get_argument_index("Name"))
objtype = str(obj).split("=")[1].split("(")[0]
for r in relations:
if r.is_a("IfcRelAggregates"):
for c in getAttr(r,"RelatedObjects"):
if str(obj) == str(c):
objparentid.append(int(str(getAttr(r,"RelatingObject")).split("=")[0].strip("#")))
elif r.is_a("IfcRelContainedInSpatialStructure"):
for c in getAttr(r,"RelatedElements"):
if str(obj) == str(c):
objparentid.append(int(str(getAttr(r,"RelatingStructure")).split("=")[0].strip("#")))
elif r.is_a("IfcRelVoidsElement"):
if str(obj) == str(getAttr(r,"RelatedOpeningElement")):
objparentid.append(int(str(getAttr(r,"RelatingBuildingElement")).split("=")[0].strip("#")))
else:
if hasattr(IfcImport, 'GetBrepData'):
obj = IfcImport.GetBrepData()
else:
obj = IfcImport.Get()
objid = obj.id
idx = objid
objname = obj.name
objtype = obj.type
objparentid.append(obj.parent_id)
if DEBUG: print "["+str(int((float(idx)/num_lines)*100))+"%] parsing ",objid,": ",objname," of type ",objtype
# retrieving name
n = getCleanName(objname,objid,objtype)
# skip IDs
if objid in skipIds:
if DEBUG: print " skipping because object ID is in skip list"
nobj = None
# skip types
elif objtype in SKIP:
if DEBUG: print " skipping because type is in skip list"
nobj = None
# check if object was already processed, to workaround an ifcopenshell bug
elif objid in processedIds:
if DEBUG: print " skipping because this object was already processed"
else:
# build shape
shape = None
if useShapes:
shape = getShape(obj,objid)
# walls
if objtype in ["IfcWallStandardCase","IfcWall"]:
nobj = makeWall(objid,shape,n)
# windows
elif objtype in ["IfcWindow","IfcDoor"]:
nobj = makeWindow(objid,shape,n)
# structs
elif objtype in ["IfcBeam","IfcColumn","IfcSlab","IfcFooting"]:
nobj = makeStructure(objid,shape,objtype,n)
# roofs
elif objtype in ["IfcRoof"]:
nobj = makeRoof(objid,shape,n)
# furniture
elif objtype in ["IfcFurnishingElement"]:
nobj = FreeCAD.ActiveDocument.addObject("Part::Feature",n)
nobj.Shape = shape
# sites
elif objtype in ["IfcSite"]:
nobj = makeSite(objid,shape,n)
# floors
elif objtype in ["IfcBuildingStorey"]:
nobj = Arch.makeFloor(name=n)
nobj.Label = n
# floors
elif objtype in ["IfcBuilding"]:
nobj = Arch.makeBuilding(name=n)
nobj.Label = n
# spaces
elif objtype in ["IfcSpace"]:
nobj = makeSpace(objid,shape,n)
elif shape:
# treat as dumb parts
if DEBUG: print "Fixme: Shape-containing object not handled: ",objid, " ", objtype
nobj = FreeCAD.ActiveDocument.addObject("Part::Feature",n)
nobj.Label = n
nobj.Shape = shape
else:
# treat as meshes
if DEBUG: print "Warning: Object without shape: ",objid, " ", objtype
if hasattr(obj,"mesh"):
if not hasattr(obj.mesh, 'verts'):
obj = IfcImport.Get() # Get triangulated rep of same product
me,pl = getMesh(obj)
nobj = FreeCAD.ActiveDocument.addObject("Mesh::Feature",n)
nobj.Label = n
nobj.Mesh = me
nobj.Placement = pl
else:
if DEBUG: print "Error: Skipping object without mesh: ",objid, " ", objtype
# registering object number and parent
if objparentid:
ifcParents[objid] = []
for p in objparentid:
ifcParents[objid].append([p,not (objtype in subtractiveTypes)])
ifcObjects[objid] = nobj
processedIds.append(objid)
if IFCOPENSHELL5:
if idx >= len(objects):
break
else:
if not IfcImport.Next():
break
# processing non-geometry and relationships
parents_temp = dict(ifcParents)
import ArchCommands
#print parents_temp
while parents_temp:
id, comps = parents_temp.popitem()
for c in comps:
parent_id = c[0]
additive = c[1]
if (id <= 0) or (parent_id <= 0):
# root dummy object
parent = None
elif parent_id in ifcObjects:
parent = ifcObjects[parent_id]
# check if parent is a subtraction, if yes parent to grandparent
if parent_id in ifcParents:
for p in ifcParents[parent_id]:
if p[1] == False:
grandparent_id = p[0]
if grandparent_id in ifcObjects:
parent = ifcObjects[grandparent_id]
else:
# creating parent if needed
if IFCOPENSHELL5:
obj = ifc.by_id(parent_id)
parentid = int(str(obj).split("=")[0].strip("#"))
parentname = obj.get_argument(obj.get_argument_index("Name"))
parenttype = str(obj).split("=")[1].split("(")[0]
else:
obj = IfcImport.GetObject(parent_id)
parentid = obj.id
parentname = obj.name
parenttype = obj.type
#if DEBUG: print "["+str(int((float(idx)/num_lines)*100))+"%] parsing ",parentid,": ",parentname," of type ",parenttype
n = getCleanName(parentname,parentid,parenttype)
if parentid <= 0:
parent = None
elif parenttype == "IfcBuildingStorey":
parent = Arch.makeFloor(name=n)
parent.Label = n
elif parenttype == "IfcBuilding":
parent = Arch.makeBuilding(name=n)
parent.Label = n
elif parenttype == "IfcSite":
parent = Arch.makeSite(name=n)
parent.Label = n
elif parenttype == "IfcWindow":
parent = Arch.makeWindow(name=n)
parent.Label = n
elif parenttype == "IfcProject":
parent = None
else:
if DEBUG: print "Fixme: skipping unhandled parent: ", parentid, " ", parenttype
parent = None
# registering object number and parent
if not IFCOPENSHELL5:
if parent_ifcobj.parent_id > 0:
ifcParents[parentid] = [parent_ifcobj.parent_id,True]
parents_temp[parentid] = [parent_ifcobj.parent_id,True]
if parent and (not parentid in ifcObjects):
ifcObjects[parentid] = parent
# attributing parent
if parent and (id in ifcObjects):
if ifcObjects[id] and (ifcObjects[id].Name != parent.Name):
if additive:
if DEBUG: print "adding ",ifcObjects[id].Name, " to ",parent.Name
ArchCommands.addComponents(ifcObjects[id],parent)
else:
if DEBUG: print "removing ",ifcObjects[id].Name, " from ",parent.Name
ArchCommands.removeComponents(ifcObjects[id],parent)
if not IFCOPENSHELL5:
IfcImport.CleanUp()
else:
# use only the internal python parser
FreeCAD.Console.PrintWarning(translate("Arch","IfcOpenShell not found or disabled, falling back on internal parser.\n"))
schema=getSchema()
if schema:
if DEBUG: print "opening",filename,"..."
ifcReader.DEBUG = DEBUG
ifc = ifcReader.IfcDocument(filename,schema=schema)
else:
FreeCAD.Console.PrintWarning(translate("Arch","IFC Schema not found, IFC import disabled.\n"))
return None
t2 = time.time()
if DEBUG: print "Successfully loaded",ifc,"in %s s" % ((t2-t1))
# getting walls
for w in ifc.getEnt("IfcWallStandardCase"):
nobj = makeWall(w)
# getting windows and doors
for w in (ifc.getEnt("IfcWindow") + ifc.getEnt("IfcDoor")):
nobj = makeWindow(w)
# getting structs
for w in (ifc.getEnt("IfcSlab") + ifc.getEnt("IfcBeam") + ifc.getEnt("IfcColumn") \
+ ifc.getEnt("IfcFooting")):
nobj = makeStructure(w)
# getting floors
for f in ifc.getEnt("IfcBuildingStorey"):
group(f,ifc,"Floor")
# getting buildings
for b in ifc.getEnt("IfcBuilding"):
group(b,ifc,"Building")
# getting sites
for s in ifc.getEnt("IfcSite"):
group(s,ifc,"Site")
if DEBUG: print "done parsing. Recomputing..."
FreeCAD.ActiveDocument.recompute()
t3 = time.time()
if DEBUG: print "done processing IFC file in %s s" % ((t3-t1))
return None
