suppress coloring of faces in headless mode

to prevent problems with the IGES export

Author: jreinhardt

freecad/hex/hex.py

@@ -19,10 +19,16 @@
 from Part import makeBox
 import Part
 import math
+import FreeCADGui
 
 thread_color = (0.5,1.,5.,0.)
 
+def runs_headless():
+	return 'setupWithoutGUI' in FreeCADGui.__dict__
+
 def color_face(part,n):
+	if runs_headless():
+		return
 	color = part.ViewObject.DiffuseColor[0]
 	n_faces = len(part.Shape.Faces)
 	part.ViewObject.DiffuseColor = [color if i != n else thread_color for i in range(n_faces)]

freecad/nut/nut.py

@@ -19,10 +19,16 @@
 from Part import makeBox
 import Part
 import math
+import FreeCADGui
 
 thread_color = (0.5,1.,5.,0.)
 
+def runs_headless():
+	return 'setupWithoutGUI' in FreeCADGui.__dict__
+
 def color_face(part,n):
+	if runs_headless():
+		return
 	color = part.ViewObject.DiffuseColor[0]
 	n_faces = len(part.Shape.Faces)
 	part.ViewObject.DiffuseColor = [color if i != n else thread_color for i in range(n_faces)]