Misc annotation and decoration.

close #1209

src/ifcblenderexport/blenderbim/bim/decoration.py

@@ -598,6 +598,13 @@ class HiddenDecorator(BaseDecorator):
         self.draw_lines(obj, verts, idxs)
 
 
+class MiscDecorator(HiddenDecorator):
+    basename = "IfcAnnotation/Misc"
+    installed = None
+
+    FRAG_GLSL = BaseDecorator.FRAG_GLSL
+
+
 class LevelDecorator(BaseDecorator):
 
     def get_splines(self, obj):

src/ifcblenderexport/blenderbim/bim/prop.py

@@ -368,6 +368,7 @@ def toggleDecorations(self, context):
         decoration.HiddenDecorator.install(self, context)
         decoration.PlanDecorator.install(self, context)
         decoration.SectionDecorator.install(self, context)
+        decoration.MiscDecorator.install(self, context)
     else:
         decoration.DimensionDecorator.uninstall()
         decoration.EqualityDecorator.uninstall()
@@ -376,6 +377,7 @@ def toggleDecorations(self, context):
         decoration.HiddenDecorator.uninstall()
         decoration.PlanDecorator.uninstall()
         decoration.SectionDecorator.uninstall()
+        decoration.MiscDecorator.uninstall()
 
 
 def getScenarios(self, context):

src/ifcblenderexport/blenderbim/bim/ui.py

@@ -2454,6 +2454,9 @@ class BIM_PT_annotation_utilities(Panel):
         op = row.operator("bim.add_annotation", text="Breakline", icon="FCURVE")
         op.obj_name = "Break"
         op.data_type = "mesh"
+        op = row.operator("bim.add_annotation", text="Misc", icon="MESH_MONKEY")
+        op.obj_name = "Misc"
+        op.data_type = "mesh"
 
         props = bpy.context.scene.DocProperties