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BimIfcExplorer.py
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#***************************************************************************
#* *
#* Copyright (c) 2019 Yorik van Havre <[email protected]> *
#* *
#* 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 *
#* *
#***************************************************************************
from __future__ import print_function
import os
import FreeCAD
from BimTranslateUtils import *
class BIM_IfcExplorer:
def __init__(self):
self.tree = None
def GetResources(self):
import Arch_rc
return {'Pixmap' : os.path.join(os.path.dirname(__file__),"icons","IFC.svg"),
'MenuText': QT_TRANSLATE_NOOP("BIM_IfcExplorer", "IFC explorer"),
'ToolTip' : QT_TRANSLATE_NOOP("BIM_IfcExplorer", "IFC explorer utility"),
}
def Activated(self):
import FreeCADGui
from PySide import QtCore,QtGui
try:
import ifcopenshell
except ImportError:
FreeCAD.Console.PrintError(translate("BIM","IfcOpenShell was not found on this system. IFC support is disabled")+"\n")
return
# setting up a font
self.bold = QtGui.QFont()
self.bold.setWeight(75)
self.bold.setBold(True)
# setting up a link fint
self.linkfont = QtGui.QFont()
self.linkfont.setUnderline(True)
# setup a brush to paint text in system link color
self.linkbrush = QtGui.QApplication.palette().link()
# draw the main tree widget
self.tree = QtGui.QTreeWidget()
self.tree.setColumnCount(1)
self.tree.setWordWrap(True)
self.tree.header().setDefaultSectionSize(60)
self.tree.header().resizeSection(0,180)
self.tree.header().setStretchLastSection(True)
self.tree.headerItem().setText(0, translate("BIM","Objects structure"))
# draw the attributes widget
self.attributes = QtGui.QTreeWidget()
self.attributes.setColumnCount(2)
self.attributes.setWordWrap(True)
self.attributes.header().setDefaultSectionSize(60)
self.attributes.header().resizeSection(0,120)
self.attributes.header().resizeSection(1,200)
self.attributes.header().setStretchLastSection(True)
self.attributes.headerItem().setText(0, translate("BIM","Attribute"))
self.attributes.headerItem().setText(1, translate("BIM","Value"))
# draw the properties widget
self.properties = QtGui.QTreeWidget()
self.properties.setColumnCount(2)
self.properties.setWordWrap(True)
self.properties.header().setDefaultSectionSize(60)
self.properties.header().resizeSection(0,120)
self.properties.header().resizeSection(1,200)
self.properties.header().setStretchLastSection(True)
self.properties.headerItem().setText(0, translate("BIM","Property"))
self.properties.headerItem().setText(1, translate("BIM","Value"))
# create the dialog
self.dialog = QtGui.QDialog()
self.dialog.setObjectName("IfcExplorer")
self.dialog.setWindowTitle(translate("BIM","Ifc Explorer"))
self.dialog.resize(720, 540)
toolbar = QtGui.QToolBar()
layout = QtGui.QVBoxLayout(self.dialog)
layout.addWidget(toolbar)
hlayout = QtGui.QHBoxLayout(self.dialog)
hlayout.addWidget(self.tree)
layout.addLayout(hlayout)
vlayout = QtGui.QVBoxLayout(self.dialog)
hlayout.addLayout(vlayout)
vlayout.addWidget(self.attributes)
vlayout.addWidget(self.properties)
# draw the toolbar buttons
self.openAction = QtGui.QAction(translate("BIM","Open"), None)
self.openAction.setToolTip(translate("BIM","Open another IFC file..."))
self.openAction.triggered.connect(self.open)
self.openAction.setIcon(QtGui.QIcon(":/icons/document-open.svg"))
toolbar.addAction(self.openAction)
self.backAction = QtGui.QAction(translate("BIM","Back"), None)
self.backAction.setToolTip(translate("BIM","Go back to last item selected"))
self.backAction.triggered.connect(self.back)
self.backAction.setIcon(QtGui.QIcon(":/icons/edit-undo.svg"))
toolbar.addAction(self.backAction)
self.shapeAction = QtGui.QAction(translate("BIM","Insert"), None)
self.shapeAction.setToolTip(translate("BIM","Inserts the selected object and its children in the active document"))
self.shapeAction.triggered.connect(self.insert)
self.shapeAction.setIcon(QtGui.QIcon(":icons/Tree_Part.svg"))
self.shapeAction.setEnabled(False)
toolbar.addAction(self.shapeAction)
self.meshAction = QtGui.QAction(translate("BIM","Mesh"), None)
self.meshAction.setToolTip(translate("BIM","Turn mesh display on/off"))
self.meshAction.triggered.connect(self.toggleMesh)
self.meshAction.setCheckable(True)
self.meshAction.setChecked(False)
self.meshAction.setIcon(QtGui.QIcon(":/icons/DrawStyleShaded.svg"))
toolbar.addAction(self.meshAction)
# connect signals/slots
self.tree.currentItemChanged.connect(self.onSelectTree)
self.attributes.itemDoubleClicked.connect(self.onDoubleClickTree)
self.properties.itemDoubleClicked.connect(self.onDoubleClickTree)
self.dialog.rejected.connect(self.close)
# center the dialog over FreeCAD window
mw = FreeCADGui.getMainWindow()
self.dialog.move(mw.frameGeometry().topLeft() + mw.rect().center() - self.dialog.rect().center())
# open a file and show the dialog
self.open()
self.dialog.show()
def open(self):
"opens a file"
import ifcopenshell
from PySide import QtCore,QtGui
self.filename = None
lastfolder = FreeCAD.ParamGet("User parameter:BaseApp/Preferences/Mod/BIM").GetString("lastIfcExplorerFolder","")
filename = QtGui.QFileDialog.getOpenFileName(None,translate("BIM","Select an IFC file"),lastfolder,translate("BIM","IFC files (*.ifc)"))
if filename:
self.filename = filename[0]
FreeCAD.ParamGet("User parameter:BaseApp/Preferences/Mod/BIM").SetString("lastIfcExplorerFolder",os.path.dirname(self.filename))
if not os.path.exists(self.filename):
FreeCAD.Console.PrintError(translate("BIM","File not found")+"\n")
return
# set window title
self.dialog.setWindowTitle(translate("BIM","IFC Explorer")+" - "+os.path.basename(self.filename))
# clear everything
self.tree.clear()
self.attributes.clear()
self.properties.clear()
self.done = []
self.backnav = []
self.mesh = None
self.products = []
self.omeshes = {}
self.currentmesh = None
# read file and order contents
self.ifc = ifcopenshell.open(self.filename)
root = self.getEntitiesTree()
# populate tree contents
for eid,children in root.items():
self.addEntity(eid,children,self.tree)
#self.tree.expandAll()
def close(self):
"close the dialog"
if FreeCAD.ActiveDocument:
if self.mesh:
FreeCAD.ActiveDocument.removeObject(self.mesh.Name)
if self.currentmesh:
FreeCAD.ActiveDocument.removeObject(self.currentmesh.Name)
def back(self):
"selects the previously selected item in the tree"
if self.backnav:
item = self.backnav.pop()
self.tree.setCurrentItem(item)
def insert(self):
"inserts selected objects in the active document"
import importIFC
from PySide import QtCore,QtGui
doc = FreeCAD.ActiveDocument
if doc and self.filename:
item = self.tree.currentItem()
if item:
eid = item.data(0,QtCore.Qt.UserRole)
if eid:
importIFC.ZOOMOUT = False
try:
importIFC.insert(self.ifc,doc.Name,only=[eid])
except TypeError:
importIFC.insert(self.filename,doc.Name,only=[eid])
if self.currentmesh:
self.currentmesh.ViewObject.hide()
def toggleMesh(self,checked=False):
"turns mesh display on/off"
import FreeCADGui
import Mesh
import ifcopenshell
from ifcopenshell import geom
if not FreeCAD.ActiveDocument:
doc = FreeCAD.newDocument()
FreeCAD.setActiveDocument(doc.Name)
if FreeCAD.ActiveDocument:
if checked:
if self.mesh:
self.mesh.ViewObject.show()
else:
try:
import importIFCHelper
s = importIFCHelper.getScaling(self.ifc)
except:
import importIFC
s = importIFC.getScaling(self.ifc)
s *= 1000 # ifcopenshell outputs its meshes in metres
trf = None
if s != 1:
trf = FreeCAD.Matrix()
trf.scale(s,s,s)
basemesh = Mesh.Mesh()
s = geom.settings()
s.set(s.USE_WORLD_COORDS,True)
for product in self.products:
try:
m = geom.create_shape(s,product)
g = m.geometry
v = g.verts
f = g.faces
verts = [FreeCAD.Vector(v[i:i+3]) for i in range(0,len(v),3)]
faces = [tuple(f[i:i+3]) for i in range(0,len(f),3)]
omesh = Mesh.Mesh((verts,faces))
if trf:
omesh.transform(trf)
self.omeshes[product.id()] = omesh
basemesh.addMesh(omesh)
except:
pass
self.mesh = FreeCAD.ActiveDocument.addObject("Mesh::Feature","IFCMesh")
self.mesh.Mesh = basemesh
self.mesh.ViewObject.Transparency = 85
FreeCAD.ActiveDocument.recompute()
FreeCADGui.Selection.clearSelection()
FreeCADGui.Selection.addSelection(self.mesh)
FreeCADGui.SendMsgToActiveView("ViewSelection")
else:
if self.mesh:
self.mesh.ViewObject.hide()
if self.currentmesh:
self.currentmesh.ViewObject.hide()
def getEntitiesTree(self):
"stacks the entities inside containers"
root = {}
for site in self.ifc.by_type("IfcSite"):
root[site.id()] = self.getChildren(site)
return root
#entities = ifc.by_type("IfcRoot")
#entities += ifc.by_type("IfcRepresentation")
#entities += ifc.by_type("IfcRepresentationItem")
#entities += ifc.by_type("IfcRepresentationMap")
#entities += ifc.by_type("IfcPlacement")
#entities += ifc.by_type("IfcProperty")
#entities += ifc.by_type("IfcPhysicalSimpleQuantity")
#entities += ifc.by_type("IfcMaterial")
#entities += ifc.by_type("IfcProductRepresentation")
#entities = sorted(entities, key=lambda eid: eid.id())
def getChildren(self,obj,keys=False):
"returns a recursive dict of the children of this obj"
children = {}
if obj.is_a("IfcProduct"):
self.products.append(obj)
if hasattr(obj,"IsDecomposedBy"): # building structure
for rel in obj.IsDecomposedBy:
if hasattr(rel,"RelatedObjects"):
for child in rel.RelatedObjects:
children[child.id()] = self.getChildren(child)
if hasattr(obj,"ContainsElements"): # objects inside building structure
for rel in obj.ContainsElements:
if hasattr(rel,"RelatedElements"):
for child in rel.RelatedElements:
children[child.id()] = self.getChildren(child)
if hasattr(obj,"Representation"): # Shape representation
if obj.Representation:
children[obj.Representation.id()] = self.getChildren(obj.Representation)
if hasattr(obj,"Representations"):
for rep in obj.Representations:
children[rep.id()] = self.getChildren(rep)
if obj.is_a("IfcShapeRepresentation"):
for it in obj.Items:
children[it.id()] = self.getChildren(it)
if keys:
def getkeys(d):
ck = list(d.keys())
for v in d.values():
ck.extend(getkeys(v))
return ck
return getkeys(children)
return children
def addEntity(self,eid,children,parent):
"adds a given entity and its children to the given tree item"
from PySide import QtCore,QtGui
def get_name(e):
try:
return " : " + e.get_info()['Name']
except:
return ""
if not eid in self.done:
entity = self.ifc[eid]
item = QtGui.QTreeWidgetItem(parent)
#item.setText(0,self.tostr(eid))
name = ""
if entity.is_a("IfcProduct"):
name = get_name(entity)
item.setFont(0,self.bold)
if isinstance(parent,QtGui.QTreeWidgetItem):
parent.setExpanded(True)
item.setText(0,"#"+self.tostr(eid)+" : "+self.tostr(entity.is_a())+name)
if entity.is_a() in ["IfcWall","IfcWallStandardCase"]:
item.setIcon(0,QtGui.QIcon(":icons/Arch_Wall_Tree.svg"))
elif entity.is_a() in ["IfcBuildingElementProxy"]:
item.setIcon(0,QtGui.QIcon(":icons/Arch_Component.svg"))
elif entity.is_a() in ["IfcColumn","IfcColumnStandardCase","IfcBeam","IfcBeamStandardCase","IfcSlab","IfcFooting","IfcPile","IfcTendon"]:
item.setIcon(0,QtGui.QIcon(":icons/Arch_Structure_Tree.svg"))
elif entity.is_a() in ["IfcSite"]:
item.setIcon(0,QtGui.QIcon(":icons/Arch_Site_Tree.svg"))
elif entity.is_a() in ["IfcBuilding"]:
item.setIcon(0,QtGui.QIcon(":icons/Arch_Building_Tree.svg"))
elif entity.is_a() in ["IfcBuildingStorey"]:
item.setIcon(0,QtGui.QIcon(":icons/Arch_Floor_Tree.svg"))
elif entity.is_a() in ["IfcWindow","IfcWindowStandardCase","IfcDoor","IfcDoorStandardCase"]:
item.setIcon(0,QtGui.QIcon(":icons/Arch_Window_Tree.svg"))
elif entity.is_a() in ["IfcRoof"]:
item.setIcon(0,QtGui.QIcon(":icons/Arch_Roof_Tree.svg"))
elif entity.is_a() in ["IfcExtrudedAreaSolid","IfcClosedShell"]:
item.setIcon(0,QtGui.QIcon(":icons/Tree_Part.svg"))
elif entity.is_a() in ["IfcFace"]:
item.setIcon(0,QtGui.QIcon(":icons/Draft_SwitchMode.svg"))
elif entity.is_a() in ["IfcArbitraryClosedProfileDef","IfcPolyloop"]:
item.setIcon(0,QtGui.QIcon(":icons/Draft_Draft.svg"))
elif entity.is_a() in ["IfcPropertySingleValue","IfcQuantityArea","IfcQuantityVolume"]:
item.setIcon(0,QtGui.QIcon(":icons/Tree_Annotation.svg"))
elif entity.is_a() in ["IfcMaterial"]:
item.setIcon(0,QtGui.QIcon(":icons/Arch_Material.svg"))
elif entity.is_a() in ["IfcReinforcingBar"]:
item.setIcon(0,QtGui.QIcon(":icons/Arch_Rebar.svg"))
elif entity.is_a("IfcProduct"):
item.setIcon(0,QtGui.QIcon(":icons/Arch_Component.svg"))
self.tree.setFirstItemColumnSpanned(item,True)
item.setData(0,QtCore.Qt.UserRole,eid)
for childid,grandchildren in children.items():
self.addEntity(childid,grandchildren,item)
self.done.append(eid)
def addAttributes(self,eid,parent):
"adds the attributes of the given IFC entity under the given QTreeWidgetITem"
import ifcopenshell
from PySide import QtCore,QtGui
entity = self.ifc[eid]
i = 0
while True:
try:
argname = entity.attribute_name(i)
except RuntimeError:
break
else:
try:
argvalue = getattr(entity,argname)
except AttributeError:
FreeCAD.Console.PrintError(translate("BIM","Error in entity")+" "+self.tostr(entity)+"\n")
break
else:
if argname not in ["Id", "GlobalId"]:
colored = False
if isinstance(argvalue,ifcopenshell.entity_instance):
if argvalue.id() == 0:
t = self.tostr(argvalue)
else:
colored = True
t = "#" + self.tostr(argvalue.id()) + ": " + self.tostr(argvalue.is_a())
elif isinstance(argvalue,(list,tuple)):
t = ""
else:
t = self.tostr(argvalue)
item = QtGui.QTreeWidgetItem(parent)
item.setText(0,self.tostr(argname))
if t and (t != "None"):
item.setText(1,t)
if colored:
item.setForeground(1,self.linkbrush)
item.setFont(1,self.linkfont)
if argname == "Name":
item.setFont(1,self.bold)
if isinstance(argvalue,(list,tuple)):
j = 0
for argitem in argvalue:
colored = False
if isinstance(argitem,ifcopenshell.entity_instance):
if argitem.id() == 0:
t = self.tostr(argitem)
else:
colored = True
t = "#" + self.tostr(argitem.id()) + ": " + self.tostr(argitem.is_a())
else:
t = argitem
t = self.tostr(t)
if j == 0:
item.setText(1,t)
if colored:
item.setForeground(1,self.linkbrush)
item.setFont(1,self.linkfont)
else:
subitem = QtGui.QTreeWidgetItem(item)
subitem.setText(1,t)
if colored:
subitem.setForeground(1,self.linkbrush)
subitem.setFont(1,self.linkfont)
j += 1
i += 1
def addProperties(self,eid,parent):
"adds properties of a given entity to the given QTReeWidgetItem"
from PySide import QtCore,QtGui
entity = self.ifc[eid]
if hasattr(entity,"IsDefinedBy"):
for rel in entity.IsDefinedBy:
if hasattr(rel,"RelatingPropertyDefinition"):
if rel.RelatingPropertyDefinition:
item = QtGui.QTreeWidgetItem(parent)
item.setText(0,"PropertySet: "+self.tostr(rel.RelatingPropertyDefinition.Name))
item.setFont(0,self.bold)
self.properties.setFirstItemColumnSpanned(item,True)
if hasattr(rel.RelatingPropertyDefinition,"HasProperties"):
for prop in rel.RelatingPropertyDefinition.HasProperties:
subitem = QtGui.QTreeWidgetItem(item)
subitem.setText(0,"Property")
self.addAttributes(prop.id(),subitem)
def tostr(self,text):
"resolves py2/py3 string representation hassles"
import six
if six.PY2:
if isinstance(text,unicode):
return text.encode("utf8")
else:
return str(text)
else:
if isinstance(text,str):
return text
else:
return str(text)
def onSelectTree(self,item,previous):
"displays attributes and properties of a tree item"
from PySide import QtCore,QtGui
self.backnav.append(previous)
eid = item.data(0,QtCore.Qt.UserRole)
self.attributes.clear()
self.addAttributes(eid,self.attributes)
self.attributes.expandAll()
self.properties.clear()
self.addProperties(eid,self.properties)
self.properties.expandAll()
entity = self.ifc[eid]
if entity.is_a("IfcProduct") and FreeCAD.ActiveDocument:
self.shapeAction.setEnabled(True)
else:
self.shapeAction.setEnabled(False)
if eid in self.omeshes:
omesh = self.omeshes[eid]
else:
omesh = None
children = self.getChildren(entity,keys=True)
for k in children:
if k in self.omeshes:
kmesh = self.omeshes[k]
if omesh:
omesh.addMesh(kmesh)
else:
omesh = kmesh
if omesh:
if not self.currentmesh:
self.currentmesh = FreeCAD.ActiveDocument.addObject("Mesh::Feature","IFCObjectMesh")
self.currentmesh.ViewObject.ShapeColor = (0.4,0.4,1.0)
self.currentmesh.Mesh = omesh
self.currentmesh.ViewObject.show()
FreeCAD.ActiveDocument.recompute()
else:
if self.currentmesh:
self.currentmesh.ViewObject.hide()
def onDoubleClickTree(self,item,column):
"when a property or attribute is double-clicked"
from PySide import QtCore,QtGui
if self.tree:
txt = item.text(column)
if txt.startswith("#"):
eid = txt[1:].split(":")[0]
target = self.tree.findItems("#"+eid+" :",QtCore.Qt.MatchStartsWith|QtCore.Qt.MatchRecursive,0)
if target:
self.tree.scrollToItem(target[0])
self.tree.setCurrentItem(target[0])