Fixed bug dissolve limit in generate hipped roof (e69452883)

Now it will work fine in both edit and object mode

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

@@ -53,8 +53,13 @@ class GenerateHippedRoof(bpy.types.Operator, tool.Ifc.Operator):
             self.report({"ERROR"}, "Need to select some object first.")
             return {"CANCELLED"}
 
-        # TODO: include this operator in bim.generate_hipped_roof
-        # bpy.ops.mesh.dissolve_limited()
+        bm = tool.Blender.get_bmesh_for_mesh(obj.data)
+        # argument values are the defaults for `bpy.ops.mesh.dissolve_limited`
+        bmesh.ops.dissolve_limit(
+            bm, angle_limit=0.0872665, use_dissolve_boundaries=False, delimit={"NORMAL"}, edges=bm.edges[:]
+        )
+        tool.Blender.apply_bmesh(obj.data, bm)
+
         generate_hipped_roof(obj, self.mode, self.height, self.angle)
         return {"FINISHED"}
 
@@ -179,7 +184,7 @@ def update_roof_modifier_bmesh(context):
     # apply dissolve limit seems to get more correct results with `generate_hipped_roof`
     # argument values are the defaults for `bpy.ops.mesh.dissolve_limited`
     bmesh.ops.dissolve_limit(
-        bm, angle_limit=0.0872665, use_dissolve_boundaries=False, delimit={"NORMAL"}, verts=bm.verts[:]
+        bm, angle_limit=0.0872665, use_dissolve_boundaries=False, delimit={"NORMAL"}, verts=bm.edges[:]
     )
     tool.Blender.apply_bmesh(obj.data, bm)
 

src/blenderbim/blenderbim/tool/blender.py

@@ -109,8 +109,13 @@ class Blender:
             bpy.context.object.update_from_editmode()
         else:
             bm.to_mesh(mesh)
-
-        bm.free()
+            # only freeing bmesh if object is in OBJECT mode
+            # because if it's in EDIT mode
+            # freeing mesh will result in dead bmeshes from `bmesh.from_edit_mesh(mesh)`
+            # until you restart EDIT mode
+            # which may result in errors when some other scripts will try to get bmesh
+            bm.free()
+        
         mesh.update()
 
     @classmethod