implementation of #3332

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

@@ -142,8 +142,13 @@ class RemoveArray(bpy.types.Operator, tool.Ifc.Operator):
     bl_label = "Remove Array"
     bl_options = {"REGISTER", "UNDO"}
     item: bpy.props.IntProperty()
+    total_items: bpy.props.IntProperty()
+    keep_objs: bpy.props.BoolProperty(name="Keep Objects", default=False)
 
     def _execute(self, context):
+        if (self.keep_objs) & (self.item < (self.total_items - 1)):
+            self.report({"INFO"}, "Keeping the objects is only allowed when you are removing the last Array of the object")
+            return {"FINISHED"}
         obj = context.active_object
         element = tool.Ifc.get_entity(obj)
         props = obj.BIMArrayProperties
@@ -159,7 +164,7 @@ class RemoveArray(bpy.types.Operator, tool.Ifc.Operator):
         except:
             return {"FINISHED"}
 
-        tool.Model.regenerate_array(parent, data)
+        tool.Model.regenerate_array(parent, data, self.keep_objs)
 
         pset = tool.Ifc.get().by_id(pset["id"])
         if len(data) == 1:
@@ -171,6 +176,13 @@ class RemoveArray(bpy.types.Operator, tool.Ifc.Operator):
 
         return {"FINISHED"}
 
+    def draw(self, context):
+        row = self.layout.row()
+        row.prop(self, "keep_objs")
+
+    def invoke(self, context, event):
+        return context.window_manager.invoke_props_dialog(self)
+
 
 class SelectArrayParent(bpy.types.Operator):
     bl_idname = "bim.select_array_parent"

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

@@ -219,7 +219,9 @@ class BIM_PT_array(bpy.types.Panel):
                     name = f"{array['count']} Items ({array.get('method', 'OFFSET').capitalize()})"
                     row.label(text=name, icon="MOD_ARRAY")
                     row.operator("bim.enable_editing_array", icon="GREASEPENCIL", text="").item = i
-                    row.operator("bim.remove_array", icon="X", text="").item = i
+                    op = row.operator("bim.remove_array", icon="X", text="")
+                    op.item = i
+                    op.total_items = len(ArrayData.data["parameters"]["data_dict"])
                     row = box.row(align=True)
                     icon = "EMPTY_ARROWS" if array.get("use_local_space", False) else "EMPTY_AXIS"
                     row.label(text=f"X: {array['x']}", icon=icon)

src/blenderbim/blenderbim/tool/model.py

@@ -531,7 +531,7 @@ class Model(blenderbim.core.tool.Model):
         return axes
 
     @classmethod
-    def regenerate_array(cls, parent, data):
+    def regenerate_array(cls, parent, data, keep_objs=False):
         unit_scale = ifcopenshell.util.unit.calculate_unit_scale(tool.Ifc.get())
         obj_stack = [parent]
 
@@ -601,7 +601,12 @@ class Model(blenderbim.core.tool.Model):
                 element = tool.Ifc.get().by_guid(removed_child)
                 obj = tool.Ifc.get_object(element)
                 if obj:
-                    tool.Geometry.delete_ifc_object(obj)
+                    if keep_objs:
+                        pset = ifcopenshell.util.element.get_pset(element, "BBIM_Array")
+                        pset = tool.Ifc.get().by_id(pset["id"])
+                        ifcopenshell.api.run("pset.remove_pset", tool.Ifc.get(), product=element, pset=pset)
+                    else:
+                        tool.Geometry.delete_ifc_object(obj)
 
             bpy.context.view_layer.update()