Integrated generic resource: Shape variation tolerances ISO 10303-47:2021(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 Shape aspect definition
   4.1 General
   4.2 Fundamental concepts and assumptions
   4.3 Shape aspect definition type definitions
   4.4 Shape aspect definition entity definitions
   4.5 Shape aspect definition subtype constraint definition
   4.6 Shape aspect definition rule definitions
5 Shape dimension
   5.1 General
   5.2 Fundamental concepts and assumptions
   5.3 Shape dimension type definitions
   5.4 Shape dimension entity definitions
6 Shape tolerance
   6.1 General
   6.2 Fundamental concepts and assumptions
   6.3 Shape tolerance type definitions
   6.4 Shape tolerance entity definitions
   6.5 Shape tolerance function definitions
   6.6 Shape tolerance rule 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 N10695 - ISO 10303-47 Shape variation tolerances - EXPRESS
Supersedes ISO/TC 184/SC 4/WG 12 N10088
*)


SCHEMA shape_aspect_definition_schema;

 REFERENCE FROM geometry_schema   -- ISO 10303-42
  (axis2_placement,
   cartesian_point,
   direction,
   geometric_representation_context,
   line,
   placement,
   plane);

REFERENCE FROM measure_schema   -- ISO 10303-41
  (length_measure_with_unit,
   measure_with_unit);

REFERENCE FROM product_property_definition_schema   -- ISO 10303-41
  (characterized_object,
   product_definition_shape,
   shape_aspect,
   shape_aspect_occurrence,
   shape_aspect_relationship);

REFERENCE FROM product_property_representation_schema   -- ISO 10303-41
  (shape_representation);

REFERENCE FROM qualified_measure_schema   -- ISO 10303-45
  (descriptive_representation_item,
   measure_representation_item);

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

REFERENCE FROM shape_dimension_schema   -- ISO 10303-47
  (dimensional_location,
   dimensional_size);

REFERENCE FROM support_resource_schema   -- ISO 10303-41
  (bag_to_set,
   label,
   identifier);


TYPE common_datum_list = LIST[2:?] OF datum_reference_element;
WHERE
  WR1: SIZEOF( QUERY(dre <* SELF | dre\shape_aspect.of_shape <> SELF[1]\shape_aspect.of_shape)) = 0;
END_TYPE;

TYPE datum_or_common_datum = SELECT
   (common_datum_list,
    datum);
END_TYPE;

TYPE datum_reference_modifier = EXTENSIBLE SELECT
   (datum_reference_modifier_with_value,
    simple_datum_reference_modifier);
END_TYPE;

TYPE datum_reference_modifier_type = EXTENSIBLE ENUMERATION OF
   (circular_or_cylindrical,
    spherical,
    distance,
    projected);
END_TYPE;

TYPE limit_condition = ENUMERATION OF
   (maximum_material_condition,
    least_material_condition,
    regardless_of_feature_size);
END_TYPE;

TYPE shape_aspect_or_feature_definition = SELECT
   (feature_definition,
    shape_aspect);
END_TYPE;

TYPE shape_representation_with_parameters_items = EXTENSIBLE GENERIC_ENTITY SELECT
   (descriptive_representation_item,
    direction,
    measure_representation_item,
    placement);
END_TYPE;

TYPE simple_datum_reference_modifier = EXTENSIBLE ENUMERATION OF
   (free_state,
    basic,
    translation,
    least_material_requirement,
    maximum_material_requirement,
    point,
    line,
    plane,
    orientation,
    any_cross_section,
    any_longitudinal_section,
    contacting_feature,
    distance_variable,
    degree_of_freedom_constraint_x,
    degree_of_freedom_constraint_y,
    degree_of_freedom_constraint_z,
    degree_of_freedom_constraint_u,
    degree_of_freedom_constraint_v,
    degree_of_freedom_constraint_w,
    minor_diameter,
    major_diameter,
    pitch_diameter);
END_TYPE;

ENTITY all_around_shape_aspect
  SUBTYPE OF (continuous_shape_aspect);
END_ENTITY;

ENTITY apex
  SUBTYPE OF (derived_shape_aspect);
END_ENTITY;

ENTITY between_shape_aspect
  SUBTYPE OF (continuous_shape_aspect);
WHERE
  WR1: SIZEOF(query(sar <* SELF\composite_shape_aspect.component_relationships | sar\shape_aspect_relationship.name = 'start feature')) = 1;
  WR2: SIZEOF(query(sar <* SELF\composite_shape_aspect.component_relationships | sar\shape_aspect_relationship.name = 'end feature')) = 1;
END_ENTITY;

ENTITY centre_of_symmetry
  SUBTYPE OF (derived_shape_aspect);
END_ENTITY;

ENTITY common_datum
  SUBTYPE OF (composite_shape_aspect, datum);
WHERE
  WR1: SIZEOF (SELF\composite_shape_aspect.component_relationships) = 2;
  WR2: SIZEOF (QUERY ( sar <* SELF\composite_shape_aspect.component_relationships| NOT (('SHAPE_ASPECT_DEFINITION_SCHEMA.DATUM' IN TYPEOF (sar.related_shape_aspect)) AND NOT ('SHAPE_ASPECT_DEFINITION_SCHEMA.COMMON_DATUM' IN TYPEOF (sar.related_shape_aspect))) )) = 0;
END_ENTITY;

ENTITY composite_group_shape_aspect
  SUBTYPE OF (composite_shape_aspect);
END_ENTITY;

ENTITY composite_shape_aspect
  SUPERTYPE OF (ONEOF (continuous_shape_aspect,
                       common_datum,
                       composite_group_shape_aspect))
  SUBTYPE OF (shape_aspect);
INVERSE
  component_relationships : SET[2:?] OF shape_aspect_relationship FOR relating_shape_aspect;
END_ENTITY;

ENTITY contacting_feature
  SUBTYPE OF (shape_aspect);
WHERE
  WR1: SELF\shape_aspect.product_definitional = FALSE;
END_ENTITY;

ENTITY continuous_shape_aspect
  SUPERTYPE OF (ONEOF (between_shape_aspect,
                       all_around_shape_aspect))
  SUBTYPE OF (composite_shape_aspect);
END_ENTITY;

ENTITY datum
  SUBTYPE OF (shape_aspect);
  identification : identifier;
INVERSE
  established_by_relationships : SET[1:?] OF shape_aspect_relationship FOR related_shape_aspect;
UNIQUE
  UR1: identification, SELF\shape_aspect.of_shape;
WHERE
  WR1: ('SHAPE_ASPECT_DEFINITION_SCHEMA.COMMON_DATUM' IN TYPEOF(SELF)) XOR ((SIZEOF(QUERY(x <* SELF\datum.established_by_relationships | SIZEOF(['SHAPE_ASPECT_DEFINITION_SCHEMA.DATUM_FEATURE', 'SHAPE_ASPECT_DEFINITION_SCHEMA.DATUM_TARGET'] * TYPEOF(x\shape_aspect_relationship.relating_shape_aspect)) = 1)) >= 1));
  WR2: SIZEOF(QUERY(x <* SELF\datum.established_by_relationships | ('SHAPE_ASPECT_DEFINITION_SCHEMA.DATUM_FEATURE' IN TYPEOF(x\shape_aspect_relationship.relating_shape_aspect)))) <= 1;
  WR3: SELF\shape_aspect.product_definitional = FALSE;
  WR4: SELF\shape_aspect.name = '';
END_ENTITY;

ENTITY datum_feature
  SUPERTYPE OF (ONEOF (dimensional_location_with_datum_feature,
                       dimensional_size_with_datum_feature))
  SUBTYPE OF (shape_aspect);
INVERSE
  feature_basis_relationship : SET[1:?] OF shape_aspect_relationship FOR relating_shape_aspect;
WHERE
  WR1: SIZEOF(QUERY(sar <* SELF\datum_feature.feature_basis_relationship | ('SHAPE_ASPECT_DEFINITION_SCHEMA.DATUM' IN TYPEOF (sar\shape_aspect_relationship.related_shape_aspect)))) = 1;
  WR2: SELF\shape_aspect.product_definitional = TRUE;
END_ENTITY;

ENTITY datum_reference;
  precedence : INTEGER;
  referenced_datum : datum;
WHERE
  WR1: precedence > 0;
END_ENTITY;

ENTITY datum_reference_compartment
  SUBTYPE OF (general_datum_reference);
INVERSE
  owner : datum_system FOR constituents;
END_ENTITY;

ENTITY datum_reference_element
  SUBTYPE OF (general_datum_reference);
INVERSE
  owner : general_datum_reference FOR base;
WHERE
  WR1: SELF <> owner;
  WR2: SELF\shape_aspect.of_shape = owner\shape_aspect.of_shape;
END_ENTITY;

ENTITY datum_reference_modifier_with_value;
  modifier_type : datum_reference_modifier_type;
  modifier_value : length_measure_with_unit;
WHERE
  WR1: modifier_value\measure_with_unit.value_component > 0.0;
END_ENTITY;

ENTITY datum_system
  SUBTYPE OF (shape_aspect);
  constituents : LIST[1:3] OF UNIQUE datum_reference_compartment;
UNIQUE
  UR1: SELF\shape_aspect.of_shape, SELF\shape_aspect.name;
WHERE
  WR1: SELF\shape_aspect.product_definitional = FALSE;
END_ENTITY;

ENTITY datum_target
  SUBTYPE OF (shape_aspect);
  target_id : identifier;
INVERSE
  target_basis_relationship : SET[1:?] OF shape_aspect_relationship FOR relating_shape_aspect;
WHERE
  WR1: SIZEOF(QUERY(sar <* SELF\datum_target.target_basis_relationship | ('SHAPE_ASPECT_DEFINITION_SCHEMA.DATUM' IN TYPEOF (sar\shape_aspect_relationship.related_shape_aspect)))) = 1;
  WR2: SELF\shape_aspect.product_definitional = TRUE;
END_ENTITY;

ENTITY derived_shape_aspect
  SUPERTYPE OF (ONEOF (apex,
                       centre_of_symmetry,
                       geometric_alignment,
                       geometric_contact,
                       geometric_intersection,
                       parallel_offset,
                       perpendicular_to,
                       extension,
                       tangent))
  SUBTYPE OF (shape_aspect);
INVERSE
  deriving_relationships : SET[1:?] OF shape_aspect_deriving_relationship FOR relating_shape_aspect;
END_ENTITY;

ENTITY dimensional_location_with_datum_feature
  SUBTYPE OF (datum_feature, dimensional_location);
END_ENTITY;

ENTITY dimensional_size_with_datum_feature
  SUBTYPE OF (datum_feature, dimensional_size);
WHERE
  WR1: SELF\dimensional_size.applies_to :=: SELF;
END_ENTITY;

ENTITY extension
  SUBTYPE OF (derived_shape_aspect);
WHERE
  WR1: SIZEOF (SELF\derived_shape_aspect.deriving_relationships)= 1;
END_ENTITY;

ENTITY feature_definition
  SUBTYPE OF (characterized_object);
END_ENTITY;

ENTITY general_datum_reference
  ABSTRACT SUPERTYPE OF (ONEOF (datum_reference_compartment,
                                datum_reference_element))
  SUBTYPE OF (shape_aspect);
  base : datum_or_common_datum;
  modifiers : OPTIONAL SET[1:?] OF datum_reference_modifier;
WHERE
  WR1: SELF\shape_aspect.name = '';
  WR2: NOT EXISTS(SELF\shape_aspect.description);
  WR3: NOT EXISTS(SELF\shape_aspect.id);
  WR4: SELF\shape_aspect.product_definitional = FALSE;
  WR5: NOT('SHAPE_ASPECT_DEFINITION_SCHEMA.DATUM' IN TYPEOF(base)) OR (SELF\shape_aspect.of_shape = base\shape_aspect.of_shape);
  WR6: NOT('SHAPE_ASPECT_DEFINITION_SCHEMA.COMMON_DATUM_LIST' IN TYPEOF(base)) OR (SELF\shape_aspect.of_shape = base[1]\shape_aspect.of_shape);
END_ENTITY;

ENTITY geometric_alignment
  SUBTYPE OF (derived_shape_aspect);
WHERE
  WR1: SIZEOF (SELF\derived_shape_aspect.deriving_relationships)> 1;
END_ENTITY;

ENTITY geometric_contact
  SUBTYPE OF (derived_shape_aspect);
WHERE
  WR1: SIZEOF (SELF\derived_shape_aspect.deriving_relationships)= 2;
END_ENTITY;

ENTITY geometric_intersection
  SUBTYPE OF (derived_shape_aspect);
WHERE
  WR1: SIZEOF (SELF\derived_shape_aspect.deriving_relationships)> 1;
END_ENTITY;

ENTITY instanced_feature
  SUBTYPE OF (feature_definition, shape_aspect);
WHERE
  WR1: 'PRODUCT_DEFINITION_SCHEMA.PRODUCT_DEFINITION' IN TYPEOF (SELF.of_shape.definition);
  WR2: SELF.product_definitional;
END_ENTITY;

ENTITY parallel_offset
  SUBTYPE OF (derived_shape_aspect);
  offset : measure_with_unit;
WHERE
  WR1: SIZEOF (SELF\derived_shape_aspect.deriving_relationships)= 1;
END_ENTITY;

ENTITY perpendicular_to
  SUBTYPE OF (derived_shape_aspect);
WHERE
  WR1: SIZEOF (SELF\derived_shape_aspect.deriving_relationships)= 1;
END_ENTITY;

ENTITY referenced_modified_datum
  SUBTYPE OF (datum_reference);
  modifier : limit_condition;
END_ENTITY;

ENTITY shape_aspect_deriving_relationship
  SUBTYPE OF (shape_aspect_relationship);
  SELF\shape_aspect_relationship.relating_shape_aspect : derived_shape_aspect;
END_ENTITY;

ENTITY shape_representation_with_parameters
  SUBTYPE OF (shape_representation);
  SELF\representation.items : SET[1:?] OF shape_representation_with_parameters_items;
END_ENTITY;

ENTITY symmetric_shape_aspect
  SUBTYPE OF (shape_aspect);
INVERSE
  basis_relationships : SET[1:?] OF shape_aspect_deriving_relationship FOR related_shape_aspect;
END_ENTITY;

ENTITY tangent
  SUBTYPE OF (derived_shape_aspect);
WHERE
  WR1: SIZEOF (SELF\derived_shape_aspect.deriving_relationships)= 1;
END_ENTITY;

SUBTYPE_CONSTRAINT sads_shape_aspect_subtypes FOR shape_aspect;
  ONEOF (contacting_feature,
         datum,
         datum_feature,
         datum_target,
         datum_system,
         general_datum_reference);
END_SUBTYPE_CONSTRAINT;

RULE unique_datum_system FOR
(product_definition_shape,datum_system);
LOCAL
 ds   : SET OF datum_system := []; 
 sa  : SET OF shape_aspect := [];
 pass : BOOLEAN := TRUE;
END_LOCAL;

REPEAT ii := 1 TO SIZEOF (product_definition_shape) WHILE pass;
 sa := bag_to_set(USEDIN(product_definition_shape[ii], 'PRODUCT_PROPERTY_DEFINITION_SCHEMA.' + 'SHAPE_ASPECT.' + 'OF_SHAPE'));
 REPEAT iii := 1 to SIZEOF (sa) WHILE pass;
  ds := QUERY(ds <* sa | 'SHAPE_ASPECT_DEFINITION_SCHEMA.DATUM_SYSTEM' IN TYPEOF(ds));

  REPEAT i := 1 TO SIZEOF(ds);
   REPEAT j := 1 TO SIZEOF(ds);
    IF (i <> j) THEN
     IF ds[i]\datum_system.constituents =
        ds[j]\datum_system.constituents  THEN
      pass := FALSE;
     END_IF;
    END_IF;
   END_REPEAT;
  END_REPEAT;

 END_REPEAT;
END_REPEAT;
WHERE
  WR1: pass;
 END_RULE;

END_SCHEMA;  -- shape_aspect_definition_schema


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