Window modifier - removed hardcoded mm units

Related to #2724

src/blenderbim/blenderbim/bim/module/model/prop.py

@@ -17,6 +17,8 @@
 # along with BlenderBIM Add-on.  If not, see <http://www.gnu.org/licenses/>.
 
 import bpy
+import ifcopenshell
+import blenderbim.tool as tool
 from blenderbim.bim.prop import ObjProperty
 from blenderbim.bim.module.model.data import AuthoringData
 from blenderbim.bim.module.model.root import ConstrTypeEntityNotFound
@@ -302,10 +304,15 @@ class BIMSverchokProperties(PropertyGroup):
 
 def window_type_prop_update(self, context):
     number_of_panels, panels_data = self.window_types_panels[self.window_type]
+
+    si_coversion = 0.001 / ifcopenshell.util.unit.calculate_unit_scale(tool.Ifc.get())
+    panels_data = [[v * si_coversion for v in data] for data in panels_data]
+
     self.first_mullion_offset, self.second_mullion_offset = panels_data[0]
     self.first_transom_offset, self.second_transom_offset = panels_data[1]
 
 
+# default prop values are in mm and converted later
 class BIMWindowProperties(PropertyGroup):
     window_types = (
         ("SINGLE_PANEL", "SINGLE_PANEL", ""),

src/blenderbim/blenderbim/bim/module/model/window.py

@@ -191,9 +191,7 @@ def create_bm_window_closed_profile(bm, size: Vector, thickness: Vector, positio
 def update_window_modifier_bmesh(context):
     obj = context.object
     props = obj.BIMWindowProperties
-    # blender interprets all values as if they are in meters
-    # so no need to convert to blender scene units, just convert to meters
-    si_conversion = 0.001
+    si_conversion = ifcopenshell.util.unit.calculate_unit_scale(tool.Ifc.get())
     panel_schema = DEFAULT_PANEL_SCHEMAS[props.window_type]
     accumulated_height = [0] * len(panel_schema[0])
     built_panels = []
@@ -211,7 +209,7 @@ def update_window_modifier_bmesh(context):
     first_transom_offset = props.first_transom_offset * si_conversion
     second_transom_offset = props.second_transom_offset * si_conversion
 
-    glass_thickness = 10 * si_conversion
+    glass_thickness = 10 * 0.001 * si_conversion
 
     bm = bmesh.new()
     panel_schema = list(reversed(panel_schema))
@@ -335,6 +333,17 @@ class AddWindow(bpy.types.Operator, tool.Ifc.Operator):
         element = tool.Ifc.get_entity(obj)
         props = obj.BIMWindowProperties
 
+        si_coversion = 0.001 / ifcopenshell.util.unit.calculate_unit_scale(tool.Ifc.get())
+        for prop_name in props.bl_rna.properties.keys():
+            if prop_name in ("rna_type", "name", "is_editing", "window_type"):
+                continue
+            prop_value = getattr(props, prop_name)
+            if type(prop_value) is float:
+                prop_value = prop_value * si_coversion
+            elif type(prop_value) is bpy.types.bpy_prop_array:
+                prop_value = [el * si_coversion for el in prop_value]
+            setattr(props, prop_name, prop_value)
+
         window_data = props.get_general_kwargs()
         lining_props = props.get_lining_kwargs()
         panel_props = props.get_panel_kwargs()