Arch: Using 2D coordinates for polylines in IFC export

src/Mod/Arch/ArchCommands.py

@@ -631,8 +631,8 @@ def getTuples(data,scale=1,placement=None,normal=None,close=True):
             print "Arch.getTuples(): Wrong profile data"
         return t
 
-def getExtrusionData(obj,scale=1):
-    """getExtrusionData(obj,[scale]): returns a closed path (a list of tuples), a tuple expressing an extrusion
+def getIfcExtrusionData(obj,scale=1):
+    """getIfcExtrusionData(obj,[scale]): returns a closed path (a list of tuples), a tuple expressing an extrusion
     vector, and a list of 3 tuples for base position, x axis and z axis. Or returns None, if a base loop and 
     an extrusion direction cannot be extracted. Scale can indicate a scale factor."""
     if hasattr(obj,"Additions"):
@@ -664,8 +664,8 @@ def getExtrusionData(obj,scale=1):
                 return "polyline", getTuples(p,scale), getTuples(v,scale), d
     return None   
 
-def getBrepFacesData(obj,scale=1):
-    """getBrepFacesData(obj,[scale]): returns a list(0) of lists(1) of lists(2) of lists(3), 
+def getIfcBrepFacesData(obj,scale=1):
+    """getIfcBrepFacesData(obj,[scale]): returns a list(0) of lists(1) of lists(2) of lists(3), 
     list(3) being a list of vertices defining a loop, list(2) describing a face from one or 
     more loops, list(1) being the whole solid made of several faces, list(0) being the list
     of solids inside the object. Scale can indicate a scaling factor"""

src/Mod/Arch/ifcWriter.py

@@ -508,7 +508,7 @@ def addColor(self,rgb,rep):
 
     def addPolyline(self,points):
         """addPolyline(points): creates a polyline from the given points"""
-        pts = [create(self._fileobject,"IfcCartesianPoint",getTuple(p)) for p in points]
+        pts = [create(self._fileobject,"IfcCartesianPoint",getTuple(p)[:2]) for p in points]
         pol = create(self._fileobject,"IfcPolyline",[pts])
         area = create(self._fileobject,"IfcArbitraryClosedProfileDef",["AREA",None,pol])
         return area

src/Mod/Arch/importIFC.py

@@ -1025,10 +1025,10 @@ def export(exportList,filename):
 
             # get representation
             if not forcebrep:
-                gdata = Arch.getExtrusionData(obj,scaling)
+                gdata = Arch.getIfcExtrusionData(obj,scaling)
                 #if DEBUG: print "   extrusion data for ",obj.Label," : ",gdata
             if not gdata:
-                fdata = Arch.getBrepFacesData(obj,scaling)
+                fdata = Arch.getIfcBrepFacesData(obj,scaling)
                 #if DEBUG: print "   brep data for ",obj.Label," : ",fdata
                 if not fdata:
                     if obj.isDerivedFrom("Part::Feature"):