Add AdheresToElement for IfcSurfaceFeature

src/bt_ifcmanager/lib/lib_ifc/IfcProduct_su.rb

@@ -26,13 +26,15 @@
 require_relative 'PropertyReader'
 require_relative 'material_and_styling'
 require_relative 'base_quantity_builder'
+require_relative 'ifc_rel_adheres_to_element_builder'
 
 module BimTools
   module IfcProduct_su
     attr_accessor :su_object, :parent, :total_transformation, :type_product
 
     @su_object = nil
     @parent = nil
+    @has_surface_features = nil
 
     # @param [BimTools::IfcManager::IfcModel] ifc_model
     # @param [nil, #definition] sketchup an empty object (default object), Sketchup::ComponentInstance or Sketchup::Group
@@ -90,19 +92,15 @@ def initialize(ifc_model, sketchup, total_transformation)
         @predefinedtype = nil
       end
 
-      # set material if sketchup @su_object has a material
-      # Material added to Product and not to TypeProduct because a Sketchup ComponentDefinition can have a different material for every Instance
-      if ifc_model.options[:materials] && (is_a? @ifc_module::IfcElement) && !(is_a? @ifc_module::IfcFeatureElementSubtraction) && !(is_a? @ifc_module::IfcVirtualElement)
-
-        # create materialassociation
-        su_material = @su_object.material
-        unless ifc_model.materials.include?(su_material)
-          ifc_model.materials[su_material] = BimTools::IfcManager::MaterialAndStyling.new(ifc_model, su_material)
-        end
-
-        # add product to materialassociation
-        ifc_model.materials[su_material].add_to_material(self)
-      end
+      # TODO: dont exclude on class but on relaggregates
+      add_material_association if ifc_model.options[:materials] &&
+                                  (is_a? @ifc_module::IfcElement) &&
+                                  !(is_a? @ifc_module::IfcFeatureElementSubtraction) &&
+                                  !(is_a? @ifc_module::IfcVirtualElement) &&
+                                  !(is_a? @ifc_module::IfcSpatialElement) &&
+                                  !(is_a? @ifc_module::IfcRoof) &&
+                                  !(is_a? @ifc_module::IfcElementAssembly) &&
+                                  !(is_a? @ifc_module::IfcCurtainWall)
 
       # collect dynamic component attributes if export option is set
       BimTools::DynamicAttributes.get_dynamic_attributes(ifc_model, self) if ifc_model.options[:dynamic_attributes]
@@ -112,6 +110,43 @@ def initialize(ifc_model, sketchup, total_transformation)
       add_base_quantities
     end
 
+    # Adds a surface feature to the IFC element.
+    #
+    # @param surface_feature [Object] The surface feature to be added.
+    # @return [void]
+    def add_surface_feature(surface_feature)
+      create_ifc_rel_adheres_to_element unless @has_surface_features
+      @has_surface_features.add_related_surface_feature(surface_feature)
+    end
+
+    # add export summary for IfcProducts
+    def step
+      @ifc_model.summary_add(self.class.name.split('::').last)
+      super
+    end
+
+    private
+
+    # Creates an IfcRelAdheresToElement relationship for the IFC element.
+    #
+    # @return [void]
+    def create_ifc_rel_adheres_to_element
+      @has_surface_features = BimTools::IfcManager::IfcRelAdheresToElementBuilder.build(@ifc_model) do |builder|
+        builder.set_relating_element(self)
+      end
+    end
+
+    # set material if sketchup @su_object has a material
+    # Material added to Product and not to TypeProduct because a Sketchup ComponentDefinition can have a different material for every Instance
+    def add_material_association
+      su_material = @su_object.material
+      unless @ifc_model.materials.include?(su_material)
+        @ifc_model.materials[su_material] = BimTools::IfcManager::MaterialAndStyling.new(@ifc_model, su_material)
+      end
+
+      @ifc_model.materials[su_material].add_to_material(self)
+    end
+
     def add_base_quantities
       unless is_a?(@ifc_module::IfcColumn) || is_a?(@ifc_module::IfcBeam) || is_a?(@ifc_module::IfcSlab) || is_a?(@ifc_module::IfcWall)
         return
@@ -121,11 +156,5 @@ def add_base_quantities
         builder.add_base_quantities(self, @su_object)
       end
     end
-
-    # add export summary for IfcProducts
-    def step
-      @ifc_model.summary_add(self.class.name.split('::').last)
-      super
-    end
   end
 end

src/bt_ifcmanager/lib/lib_ifc/entity_builder.rb

@@ -111,6 +111,8 @@ def create_ifc_entity(entity_type_name, su_instance, placement_parent = nil, su_
 
         create_geometry(su_definition, ifc_entity, placement_parent, su_material, su_layer)
 
+        add_placement_parent_relationships(ifc_entity, placement_parent)
+
         # We always need a placement parent, so when the current entity is nil, we use the parent
         placement_parent = ifc_entity if ifc_entity
         create_nested_objects(placement_parent, su_instance, su_material, su_layer)
@@ -516,6 +518,23 @@ def add_representation_to_parent(placement_parent, definition_manager, su_materi
           )
         end
       end
+
+      # Adds additional relationships between the given IFC entity and its placement parent.
+      #
+      # @param ifc_entity [Object] The IFC entity to which relationships will be added.
+      # @param placement_parent [Object] The parent entity to which the IFC entity is related.
+      # @return [void]
+      def add_placement_parent_relationships(ifc_entity, placement_parent)
+        return unless placement_parent
+
+        return if ifc_entity == placement_parent
+
+        unless ifc_entity.is_a?(@ifc_module::IfcSurfaceFeature) && placement_parent.is_a?(@ifc_module::IfcProduct)
+          return
+        end # TODO: should be IfcElement
+
+        placement_parent.add_surface_feature(ifc_entity)
+      end
     end
   end
 end

src/bt_ifcmanager/lib/lib_ifc/ifc_rel_adheres_to_element_builder.rb

@@ -0,0 +1,67 @@
+# frozen_string_literal: true
+
+#  ifc_rel_adheres_to_element_builder.rb
+#
+#  Copyright 2024 Jan Brouwer <[email protected]>
+#
+#  This program is free software; you can redistribute it and/or modify
+#  it under the terms of the GNU General Public License as published by
+#  the Free Software Foundation; either version 2 of the License, or
+#  (at your option) any later version.
+#
+#  This program is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#  GNU General Public License for more details.
+#
+#  You should have received a copy of the GNU General Public License
+#  along with this program; if not, write to the Free Software
+#  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+#  MA 02110-1301, USA.
+#
+#
+
+require_relative 'ifc_types'
+
+module BimTools
+  module IfcManager
+    class IfcRelAdheresToElementBuilder
+      UNSUPPORTED_VERSIONS = ['IFC 2x3', 'IFC 4'].freeze
+
+      attr_reader :ifc_rel_adheres_to_element
+
+      def self.build(ifc_model)
+        builder = new(ifc_model)
+        return nil unless builder.supported_version?
+
+        yield(builder) if block_given?
+        builder
+      end
+
+      def initialize(ifc_model)
+        @ifc_module = ifc_model.ifc_module
+        @ifc_model = ifc_model
+        @ifc_rel_adheres_to_element = @ifc_module::IfcRelAdheresToElement.new(ifc_model)
+        @ifc_rel_adheres_to_element.relatedsurfacefeatures = IfcManager::Types::Set.new
+      end
+
+      def set_relating_element(element)
+        raise TypeError, 'Expected IfcElement' unless element.is_a?(@ifc_module::IfcElement)
+
+        @ifc_rel_adheres_to_element.relatingelement = element
+        self
+      end
+
+      def add_related_surface_feature(surface_feature)
+        raise TypeError, 'Expected IfcSurfaceFeature' unless surface_feature.is_a?(@ifc_module::IfcSurfaceFeature)
+
+        @ifc_rel_adheres_to_element.relatedsurfacefeatures.add(surface_feature)
+        self
+      end
+
+      def supported_version?
+        !UNSUPPORTED_VERSIONS.include?(@ifc_model.ifc_version)
+      end
+    end
+  end
+end

src/bt_ifcmanager/lib/lib_ifc/spatial_structure.rb

@@ -221,6 +221,8 @@ def set_parent(ifc_entity)
                  end
         ifc_entity.parent = parent
         case ifc_entity
+        when @ifc_module::IfcSurfaceFeature
+          # skip
         when @ifc_module::IfcSpatialStructureElement
           ifc_entity.parent.add_related_object(ifc_entity)
         else