further work on ifcopenshell integration

src/Mod/Arch/importIFC.py

@@ -36,7 +36,12 @@ def open(filename):
     doc = FreeCAD.newDocument(docname)
     doc.Label = decode(docname)
     FreeCAD.ActiveDocument = doc
-    read(filename)
+    p = FreeCAD.ParamGet("User parameter:BaseApp/Preferences/Mod/Arch")
+    p = p.GetBool("useIfcOpenShell")
+    if p:
+        readOpenShell(filename)
+    else:
+        read(filename)
     return doc
 
 def decode(name):
@@ -78,10 +83,39 @@ def getIfcOpenShell():
             print "Couldn't import IfcOpenShell"
 
 def readOpenShell(filename):
+    import Mesh
     getIfcOpenShell()
     if IfcOpenShell:
         IfcOpenShell.Init(filename)
-        return IfcOpenShell.Get()
+        while True:
+            obj = IfcOpenShell.Get()
+            print "parsing ",obj.guid,": ",obj.name," of type ",obj.type
+            meshdata = []
+            n = obj.name
+            if not n: n = "Unnamed"
+            f = obj.mesh.faces
+            v = obj.mesh.verts
+            m = obj.matrix
+            print "verts: ",len(v)," faces: ",len(f)
+            mat = FreeCAD.Matrix(m[0], m[1], m[2], 0,
+                                 m[3], m[4], m[5], 0,
+                                 m[6], m[7], m[8], 0,
+                                 m[9], m[10], m[11], 1)
+            for i in range(0, len(f), 3):
+                print "face ",f[i],f[i+1],f[i+2]
+                face = []
+                print "i:",i
+                for j in range(3):
+                    vi = f[i+j]*3
+                    print "vi:",vi
+                    face.append([v[vi],v[vi+1],v[vi+2]])
+                meshdata.append(face)
+            newmesh = Mesh.Mesh(meshdata)
+            mobj = FreeCAD.ActiveDocument.addObject("Mesh::Feature",n)
+            mobj.Mesh = newmesh
+            mobj.Placement = FreeCAD.Placement(mat)
+            if not IfcOpenShell.Next():
+                break
     return None
     
 def read(filename):