Application interpreted construct: Associative draughting elements ISO 10303-520:2018-11(E)
© ISO

Cover page
Table of contents
Copyright
Foreword
Introduction
1 Scope
2 Normative references
3 Terms, definitions and abbreviated terms
    3.1 Terms and definitions
    3.2 Abbreviated terms

4 EXPRESS short listing
   4.1 General
   4.2 Fundamental concepts and assumptions
   4.3 Associative draughting elements type definition
   4.4 Associative draughting elements entity definitions
   4.5 Associative draughting elements function definitions

A Short names of entities
B Information object registration
C Computer interpretable listings
D EXPRESS-G diagrams
E Change history
Bibliography
Index

(*
ISO/TC 184/SC 4/WG 12 N9671 - ISO 10303-520 Associative draughting elements - EXPRESS
Supersedes ISO/TC 184/SC 4/WG 12 N8489
*)



SCHEMA aic_associative_draughting_elements;

USE FROM measure_schema   -- ISO 10303-41
  (derived_unit,
   named_unit);

USE FROM product_property_definition_schema   -- ISO 10303-41
  (property_definition,
   shape_aspect,
   shape_aspect_relationship);

USE FROM product_property_representation_schema   -- ISO 10303-41
  (shape_definition_representation);

USE FROM geometry_schema   -- ISO 10303-42
  (axis2_placement);

USE FROM representation_schema   -- ISO 10303-43
  (mapped_item,
   representation,
   representation_item,
   representation_map);

USE FROM qualified_measure_schema   -- ISO 10303-45
  (measure_representation_item);

USE FROM presentation_appearance_schema   -- ISO 10303-46
  (curve_style,
   styled_item,
   invisibility_context);

USE FROM presentation_definition_schema   -- ISO 10303-46
  (annotation_curve_occurrence,
   annotation_fill_area_occurrence,
   annotation_occurrence,
   annotation_occurrence_relationship,
   annotation_symbol_occurrence,
   annotation_text_occurrence,
   text_literal);

USE FROM presentation_organization_schema   -- ISO 10303-46
  (camera_model,
   presentation_view,
   annotation_representation_select);

USE FROM shape_dimension_schema   -- ISO 10303-47
  (dimensional_characteristic_representation,
   shape_dimension_representation);

USE FROM draughting_element_schema   -- ISO 10303-101
  (annotation_plane,
   draughting_callout,
   draughting_model,
   draughting_model_item_select,
   leader_curve,
   projection_curve);

REFERENCE FROM support_resource_schema   -- ISO 10303-41
  (bag_to_set);

REFERENCE FROM representation_schema   -- ISO 10303-43
  (using_representations);


TYPE aade_invisibility_context = EXTENSIBLE GENERIC_ENTITY SELECT BASED_ON invisibility_context WITH
   (draughting_model);
END_TYPE;

ENTITY annotation_occurrence_associativity
  SUBTYPE OF (annotation_occurrence_relationship);
WHERE
  WR1: SIZEOF (TYPEOF (SELF.related_annotation_occurrence) * ['PRESENTATION_DEFINITION_SCHEMA.ANNOTATION_FILL_AREA_OCCURRENCE', 'DRAUGHTING_ELEMENT_SCHEMA.PROJECTION_CURVE', 'DRAUGHTING_ELEMENT_SCHEMA.LEADER_CURVE']) = 1;
END_ENTITY;

ENTITY dimension_text_associativity
  SUBTYPE OF (text_literal, mapped_item);
WHERE
  WR1: ('SHAPE_DIMENSION_SCHEMA.SHAPE_DIMENSION_REPRESENTATION' IN TYPEOF (SELF\mapped_item. mapping_source.mapped_representation));
  WR2: ('DRAUGHTING_ELEMENT_SCHEMA.DRAUGHTING_CALLOUT' IN TYPEOF (SELF\mapped_item.mapping_target));
  WR3: SIZEOF (QUERY (ato <* QUERY (si <* USEDIN (SELF, 'PRESENTATION_APPEARANCE_SCHEMA.STYLED_ITEM.ITEM') | ('PRESENTATION_DEFINITION_SCHEMA.ANNOTATION_TEXT_OCCURRENCE' IN TYPEOF(si))) | NOT (SIZEOF( QUERY (dc <* USEDIN (ato, 'DRAUGHTING_ELEMENT_SCHEMA.' + 'DRAUGHTING_CALLOUT.CONTENTS') | ('DRAUGHTING_ELEMENT_SCHEMA.DRAUGHTING_CALLOUT' IN TYPEOF (dc))) * [SELF\mapped_item.mapping_target]) = 1) )) = 0;
END_ENTITY;

ENTITY shape_aspect_associativity
  SUBTYPE OF (shape_aspect_relationship);
WHERE
  WR1: SELF.relating_shape_aspect.product_definitional;
  WR2: NOT (SELF.related_shape_aspect.product_definitional);
END_ENTITY;

FUNCTION check_associative_shape_aspects
 (sdr : shape_definition_representation) : BOOLEAN;
LOCAL
      sr1, sr2 : SET OF representation;
      dm, pv   : SET OF representation;
    END_LOCAL;
    -- Check if the representation contains only two items
    IF (SIZEOF (sdr.used_representation.items) <> 2) THEN
      RETURN (FALSE);
    END_IF;
    -- Find the representations that use each item
    sr1 := using_representations(sdr.used_representation.items[1]);
    sr2 := using_representations(sdr.used_representation.items[2]);
    -- Find the representations in which item 1 representations are mapped
    REPEAT i := 1 TO HIINDEX(sr1);
      dm := representations_mapped_into(sr1[i]);
      REPEAT j := 1 TO HIINDEX(dm);
        IF ('DRAUGHTING_ELEMENT_SCHEMA.DRAUGHTING_MODEL' IN TYPEOF(dm[j]))
        THEN
          IF (dm[j] IN sr2) THEN RETURN (TRUE);
          END_IF;
          -- Find the views that the draughting model is mapped into
          pv := representations_mapped_into(dm[j]);
          REPEAT k := 1 TO HIINDEX(pv);
            IF ('PRESENTATION_ORGANIZATION_SCHEMA.PRESENTATION_VIEW' IN TYPEOF(pv[k]))
            THEN
              IF (pv[k] IN sr2) THEN RETURN (TRUE);
              END_IF;
            END_IF;
          END_REPEAT;
        END_IF;
      END_REPEAT;
    END_REPEAT;
    -- Find the representations in which item 2 representations are mapped
    REPEAT i := 1 TO HIINDEX(sr2);
      dm := representations_mapped_into(sr2[i]);
      REPEAT j := 1 TO HIINDEX(dm);
        IF ('DRAUGHTING_ELEMENT_SCHEMA.DRAUGHTING_MODEL' IN TYPEOF(dm[j]))
        THEN
          IF (dm[j] IN sr1) THEN RETURN (TRUE);
          END_IF;
          -- Find the views that the draughting model is mapped into
          pv := representations_mapped_into(dm[j]);
          REPEAT k := 1 TO HIINDEX(pv);
            IF ('PRESENTATION_ORGANIZATION_SCHEMA.PRESENTATION_VIEW' IN TYPEOF(pv[k]))
            THEN
              IF (pv[k] IN sr1) THEN RETURN (TRUE);
              END_IF;
            END_IF;
          END_REPEAT;
        END_IF;
      END_REPEAT;
    END_REPEAT;
    RETURN(FALSE);
END_FUNCTION;

FUNCTION representations_mapped_into
 (rep : representation) : SET[0:?] OF representation;
LOCAL
      results : SET OF representation := [];
      rm      : SET OF representation_map;
      mi      : SET OF mapped_item := [];
    END_LOCAL;
    -- Find set of representation_maps which specify the representation
    rm := bag_to_set(USEDIN(rep, 'REPRESENTATION_SCHEMA.' +
                      'REPRESENTATION_MAP.MAPPED_REPRESENTATION'));
    -- Find the set of mapped_items that use each representation_map
    REPEAT i := 1 TO HIINDEX(rm);
      mi := mi + rm[i].map_usage;
    END_REPEAT;
    -- Find the set of representations that use each mapped_item
    REPEAT j := 1 TO HIINDEX(mi);
      results := results + USEDIN(mi[j],'REPRESENTATION_SCHEMA.' +
                                        'REPRESENTATION.ITEMS');
    END_REPEAT;
    RETURN(results);
END_FUNCTION;

END_SCHEMA;  -- aic_associative_draughting_elements


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