deferred class
	EV_POSITIONED

General
	cluster: interface
	description: "Abstraction for objects that have geometric position."
	keywords: "position, width, height"

Ancestors
	EV_ANY*

Queries
	data: ANY
	height: INTEGER_32
	is_destroyed: BOOLEAN
	minimum_height: INTEGER_32
	minimum_width: INTEGER_32
	width: INTEGER_32
	x_position: INTEGER_32
	y_position: INTEGER_32

Commands
	copy (other: [like Current] EV_POSITIONED)
	destroy
	set_data (some_data: [like data] ANY)

Constraints
	width not negative
	height not negative
	minimum width not negative
	minimum height not negative