Move dimension anchor/regen buttons to annotation tool; ForcePerpendicularToFace toggle updates selection

workspace.py:
- Move "Set Dimension Anchor" and "Regenerate" buttons from the properties
  panel (ui.py) into draw_edit_object_interface in the annotation tool,
  visible whenever a selected object is a dimension-type IfcAnnotation
- Change force_perpendicular_to_face from a push-button (toggle=True) to
  a standard checkbox for clearer on/off state

ui.py:
- Remove the "Parametric Dimension" section (now lives in the tool header)

prop.py:
- Add _update_force_perpendicular update callback: when the checkbox is
  toggled, iterates all selected dimension annotations, writes the new
  ForcePerpendicularToFace value to each BBIM_Dimension pset, and calls
  regenerate_dimension so the constraint is applied immediately

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/bonsai/bonsai/bim/module/drawing/prop.py

@@ -1038,6 +1038,62 @@ def update_sheet_data(self, context):
     SheetsData.is_loaded = False
 
 
+def _update_force_perpendicular(self, context):
+    """Apply ForcePerpendicularToFace to all selected dimension annotations and regenerate them."""
+    import json
+    import numpy as np
+    import ifcopenshell.util.element
+    import ifcopenshell.api.pset
+    import ifcopenshell.api.drawing as drawing_api
+    import bonsai.tool as tool
+
+    file = tool.Ifc.get()
+    if not file:
+        return
+
+    new_value = self.force_perpendicular_to_face
+    _DIM_TYPES = frozenset(("DIMENSION", "RADIUS", "DIAMETER", "ANGLE", "PLAN_LEVEL", "SECTION_LEVEL"))
+
+    targets = []
+    for obj in context.selected_objects:
+        element = tool.Ifc.get_entity(obj)
+        if not element or not element.is_a("IfcAnnotation"):
+            continue
+        if ifcopenshell.util.element.get_predefined_type(element) not in _DIM_TYPES:
+            continue
+        pset_data = ifcopenshell.util.element.get_pset(element, "BBIM_Dimension")
+        if not pset_data:
+            continue
+        targets.append((obj, element, pset_data))
+
+    if not targets:
+        return
+
+    from bonsai.bim.module.drawing.operator import _update_blender_curve
+
+    for obj, element, pset_data in targets:
+        pset_entity = file.by_id(pset_data["id"])
+        ifcopenshell.api.pset.edit_pset(file, pset=pset_entity, properties={"ForcePerpendicularToFace": new_value})
+
+        anchors = json.loads(pset_data.get("Anchors") or "[]")
+        placement_override = {}
+        for a in anchors:
+            guid = a.get("guid")
+            if not guid:
+                continue
+            try:
+                elem = file.by_guid(guid)
+                elem_obj = tool.Ifc.get_object(elem)
+                if elem_obj:
+                    placement_override[elem.id()] = np.array(elem_obj.matrix_world)
+            except Exception:
+                pass
+
+        resolved_pts = drawing_api.regenerate_dimension(file, element, placement_override=placement_override)
+        if resolved_pts:
+            _update_blender_curve(element, resolved_pts)
+
+
 class BIMAnnotationProperties(PropertyGroup):
     object_type: bpy.props.EnumProperty(
         name="Annotation Object Type", items=annotation_classes, default="TEXT", update=update_annotation_object_type
@@ -1053,8 +1109,9 @@ class BIMAnnotationProperties(PropertyGroup):
     type_name: bpy.props.StringProperty(name="Name", default="TYPEX")
     force_perpendicular_to_face: bpy.props.BoolProperty(
         name="Force ⊥ to Face",
-        description="Constrain subsequent dimension vertices to lie on the line through the first vertex along its face normal",
+        description="Constrain dimension vertices to the face normal of the first anchor. When dimensions are selected, toggling this updates them all.",
         default=False,
+        update=_update_force_perpendicular,
     )
     tag_rotation_mode: bpy.props.EnumProperty(
         name="Tag Rotation Mode",

src/bonsai/bonsai/bim/module/drawing/ui.py

@@ -571,18 +571,6 @@ class BIM_PT_product_assignments(Panel):
             col.operator("bim.select_assigned_product", icon="RESTRICT_SELECT_OFF", text="")
             col.enabled = bool(ProductAssignmentsData.data["relating_product"])
 
-        # Parametric dimension controls
-        element = tool.Ifc.get_entity(obj)
-        if element:
-            import ifcopenshell.util.element
-            ptype = ifcopenshell.util.element.get_predefined_type(element)
-            if ptype in ("DIMENSION", "RADIUS", "DIAMETER", "ANGLE", "PLAN_LEVEL", "SECTION_LEVEL"):
-                self.layout.separator()
-                self.layout.label(text="Parametric Dimension", icon="CONSTRAINT")
-                row = self.layout.row(align=True)
-                row.operator("bim.set_dimension_anchor", icon="PIVOT_CURSOR")
-                op = row.operator("bim.regenerate_dimensions", icon="FILE_REFRESH", text="Regenerate")
-                op.active_only = True
 
 
 def get_category_icon(category_name):

src/bonsai/bonsai/bim/module/drawing/workspace.py

@@ -221,6 +221,8 @@ class AnnotationToolUI:
         props = tool.Drawing.get_document_props()
         row.prop(props, "should_draw_decorations", text="Viewport Annotations")
 
+    _DIMENSION_TYPES = frozenset(("DIMENSION", "RADIUS", "DIAMETER", "ANGLE", "PLAN_LEVEL", "SECTION_LEVEL"))
+
     @classmethod
     def draw_edit_object_interface(cls, context):
         if DecoratorData.get_text_data(bpy.context.active_object):
@@ -229,6 +231,17 @@ class AnnotationToolUI:
             row = cls.layout.row(align=True)
             row.operator("bim.copy_annotation_to_drawing", icon="PASTEDOWN", text="Copy To Drawing")
 
+        obj = context.active_object
+        element = tool.Ifc.get_entity(obj) if obj else None
+        if element and element.is_a("IfcAnnotation"):
+            ptype = ifcopenshell.util.element.get_predefined_type(element)
+            if ptype in cls._DIMENSION_TYPES:
+                cls.layout.separator()
+                row = cls.layout.row(align=True)
+                row.operator("bim.set_dimension_anchor", icon="PIVOT_CURSOR")
+                op = row.operator("bim.regenerate_dimensions", icon="FILE_REFRESH", text="Regenerate")
+                op.active_only = True
+
     @classmethod
     def draw_type_selection_interface(cls):
         # shared by both sidebar and header
@@ -254,7 +267,7 @@ class AnnotationToolUI:
         _DIMENSION_TYPES = {"DIMENSION", "RADIUS", "DIAMETER", "ANGLE", "PLAN_LEVEL", "SECTION_LEVEL"}
         if object_type in _DIMENSION_TYPES:
             row = cls.layout.row(align=True)
-            row.prop(cls.props, "force_perpendicular_to_face", toggle=True)
+            row.prop(cls.props, "force_perpendicular_to_face")
 
         if object_type in tool.Drawing.ANNOTATION_TYPES_SUPPORT_SETUP:
             row = cls.layout.row(align=True)