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axis1_placement

EXPRESS specification:

ENTITY axis1_placement
SUBTYPE OF ( placement);
axis  :  OPTIONAL direction;
DERIVE
z  :  direction :=  NVL(normalise(axis), dummy_gri || direction([0.0,0.0,1.0]));
WHERE
WRA21  :  SELF\geometric_representation_item.dim = 3;
END_ENTITY;

References (7):

Name Type Referred through Express-G
placement Entity
Subtype
No Diagram
revolved_area_solid Entity
Attribute 'axis'
No Diagram
revolved_face_solid Entity
Attribute 'axis'
No Diagram
right_circular_cone Entity
Attribute 'position'
No Diagram
right_circular_cylinder Entity
Attribute 'position'
No Diagram
surface_of_revolution Entity
Attribute 'axis_position'
No Diagram
torus Entity
Attribute 'position'
No Diagram

Inheritance graph

ENTITY axis1_placement;
ENTITY representation_item;
name  :  label;
ENTITY geometric_representation_item;
DERIVE
dim  :  dimension_count :=  dimension_of(SELF);
ENTITY placement;
location  :  cartesian_point;
ENTITY axis1_placement;
axis  :  OPTIONAL direction;
DERIVE
z  :  direction :=  NVL(normalise(axis), dummy_gri || direction([0.0,0.0,1.0]));
END_ENTITY;