draw-by

Arguments: stream offset

Draws on stream a line from the current position to the position offset away from current position. offset should be a position (see make-position). stream should be a graphical-stream.

Contrast with draw-to and draw-to-x-y which draw from the current position to the argument location.

To use individual coordinates rather than creating position objects, see draw-by-x-y.

See also cg-drawing.htm.

Copyright (c) 1998-2009, Franz Inc. Oakland, CA., USA. All rights reserved.
Documentation for Allegro CL version 8.1. The object described on this page has been modified in the 8.1 release; see the Release Notes.
Created 2007.4.30.