[FEM] use magnetization constraint for 2D

- uses the constraint for 2D magnetodynamics to perform e.g. Elmer's tutorial non. 15

- modify the Material manager to get rid of magnetization but keep the vectorial functionality because in future there will be support for e.g. birefringence materials etc.

src/Mod/Material/MaterialEditor.py

@@ -682,15 +682,12 @@ def matProperWidget(parent=None, matproperty=None, Type="String", Value=None,
         # for properties with an underscored number (vectorial values),
         # we must strip the part after the first underscore to obtain the bound unit
         # since in cardutils.py in def get_material_template
-        # the underscores were removed, we must first check for numbers
-        # and then for "Im" (denotes an imaginery value)
+        # the underscores were removed, we must check for numbers
         import re
         if re.search(r'\d', matproperty):
             matpropertyNum = matproperty.rstrip('0123456789')
             matproperty = matpropertyNum
-        if matproperty.find("Im") != -1:
-            matproperty = matproperty.split("Im")[0]
-            
+
         if hasattr(FreeCAD.Units, matproperty):
             unit = getattr(FreeCAD.Units, matproperty)
             quantity = FreeCAD.Units.Quantity(1, unit)

src/Mod/Material/StandardMaterial/TEMPLATE.FCMat

@@ -123,15 +123,6 @@ ElectricalConductivity =
 ; https://en.wikipedia.org/wiki/Permeability_(electromagnetism)
 RelativePermeability =
 
-; The magnetization in [FreeCAD Magnetization unit]"
-; https://en.wikipedia.org/wiki/Magnetization
-Magnetization_1 =
-Magnetization_2 =
-Magnetization_3 =
-Magnetization_Im_1 =
-Magnetization_Im_2 =
-Magnetization_Im_3 =
-
 [Architectural]
 ; Description to be updated
 Color =

src/Mod/Material/Templatematerial.yml

@@ -168,30 +168,6 @@
       Type: 'Float'
       URL: 'https://en.wikipedia.org/wiki/Permeability_(electromagnetism)'
       Description: "The ratio to the permeability of the vacuum"
-    Magnetization_1:
-      Type: 'Quantity'
-      URL: 'https://en.wikipedia.org/wiki/Magnetization'
-      Description: "Magnetization in x-direction in [FreeCAD Magnetization unit]"
-    Magnetization_2:
-      Type: 'Quantity'
-      URL: 'https://en.wikipedia.org/wiki/Magnetization'
-      Description: "Magnetization in y-direction in [FreeCAD Magnetization unit]"
-    Magnetization_3:
-      Type: 'Quantity'
-      URL: 'https://en.wikipedia.org/wiki/Magnetization'
-      Description: "Magnetization in z-direction in [FreeCAD Magnetization unit]"
-    Magnetization_Im_1:
-      Type: 'Quantity'
-      URL: 'https://en.wikipedia.org/wiki/Magnetization'
-      Description: "Magnetization, imagaginary part, in x-direction in [FreeCAD Magnetization unit]"
-    Magnetization_Im_2:
-      Type: 'Quantity'
-      URL: 'https://en.wikipedia.org/wiki/Magnetization'
-      Description: "Magnetization, imagaginary part, in y-direction in [FreeCAD Magnetization unit]"
-    Magnetization_Im_3:
-      Type: 'Quantity'
-      URL: 'https://en.wikipedia.org/wiki/Magnetization'
-      Description: "Magnetization, imagaginary part, in z-direction in [FreeCAD Magnetization unit]"
 - Architectural:
     Color:
       Type:  'String'

src/Mod/Material/materialtools/cardutils.py

@@ -239,9 +239,6 @@ def get_material_template(withSpaces=False):
                 new_proper = re.sub(r"(\w)([A-Z]+)", r"\1 \2", proper)
                 # strip underscores of vectorial properties
                 new_proper = new_proper.replace("_", " ")
-                # this can lead to double spaces for imaginary properties
-                # e.g. "_Im_1", therefore remove one
-                new_proper = new_proper.replace("  ", " ")
                 new_group[gg][new_proper] = group[gg][proper]
             new_template.append(new_group)
         template_data = new_template