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section_profile_circle_hollow

EXPRESS specification:

ENTITY section_profile_circle_hollow
SUBTYPE OF ( section_profile_circle);
wall_thickness  :  positive_length_measure_with_unit;
DERIVE
external_radius_value  :  REAL := 
(SELF\section_profile_circle.external_radius.value_component);
wall_thickness_value  :  REAL :=  wall_thickness.value_component;
inside_diameter  :  REAL :=  ((external_radius_value - wall_thickness_value)*2);
WHERE
WRS8  :  wall_thickness_value < external_radius_value;
END_ENTITY;

References (1):

Name Type Referred through Express-G
section_profile_circle Entity
Subtype
No Diagram

Inheritance graph

ENTITY section_profile_circle_hollow;
ENTITY structural_frame_item;
item_number  :  INTEGER;
item_name  :  label;
item_description  :  OPTIONAL text;
DERIVE
item_ref  :  BAG OF identifier :=  get_item_ref(SELF);
cost_code  :  BAG OF label :=  get_item_cost_code(SELF);
object_id  :  globally_unique_id :=  get_instance_id(SELF);
ENTITY section_profile;
section_classification  :  OPTIONAL label;
cardinal_point  :  cardinal_point_ref;
mirrored  :  LOGICAL;
DERIVE
section_ref  :  BAG OF identifier :=  SELF\structural_frame_item.item_ref;
ENTITY section_profile_simple;
ENTITY section_profile_circle;
external_radius  :  positive_length_measure_with_unit;
ENTITY section_profile_circle_hollow;
wall_thickness  :  positive_length_measure_with_unit;
DERIVE
external_radius_value  :  REAL := 
(SELF\section_profile_circle.external_radius.value_component);
wall_thickness_value  :  REAL :=  wall_thickness.value_component;
inside_diameter  :  REAL :=  ((external_radius_value - wall_thickness_value)*2);
END_ENTITY;