right-angle-line-pinboard-object Class

Summary

A subclass of pinboard-object that displays a line drawn around two edges of the area enclosed by the pinboard object.

Package

capi

Superclasses

line-pinboard-object

Initargs

:type

The type of line.

Description

The class right-angle-line-pinboard-object is a a subclass of line-pinboard-object which displays a line around the edge of the pinboard object rather than diagonally.

type can be one of two values.

:vertical-first	Draw top-left to bottom-left to bottom-right.
:horizontal-first	Draw top-left to top-right to bottom-right.

The main use of this class is to produce graphs with right-angled edges rather than diagonal ones.

Examples

(capi:contain 
 (make-instance
  'capi:right-angle-line-pinboard-object
  :start-x 20 :start-y 20
  :end-x 280 :end-y 100))
 
(capi:contain 
 (make-instance
  'capi:right-angle-line-pinboard-object
  :start-x 20 :start-y 120
  :end-x 280 :end-y 200 
  :type :horizontal-first))

See also

pinboard-layout
12.3 Creating graphical objects