Generic FunctionPackage: cgToCDocOverviewCGDocRelNotesFAQIndexPermutedIndex
Allegro CL version 9.0
Unrevised from 8.2 to 9.0.
8.2 version

draw-circle-sector

Arguments: stream center radius start-angle length-angle

Draws on stream a circle-sector, that is an arc and the bounding radii to produce a shape like a piece of pie, starting at start-angle and subtending length-angle, with the radius and center as specified.

center must be a position (see make-position). stream should be a cg-stream.

Angles are measured clockwise starting from the positive x-axis (taking the center as the origin). Thus start-angle 0 is the due East point if the circle is thought of as a compass. Start-angle 0 and length-angle 90 draws the lower right quarter, now thinking of the circle as a pie. The endpoint coordinates may be determined by calling ellipse-start-and-end.

See erase-circle-sector.

See also cg-drawing.htm.


Copyright (c) 1998-2012, Franz Inc. Oakland, CA., USA. All rights reserved.
Documentation for Allegro CL version 9.0. This page was not revised from the 8.2 page.
Created 2012.5.30.

ToCDocOverviewCGDocRelNotesFAQIndexPermutedIndex
Allegro CL version 9.0
Unrevised from 8.2 to 9.0.
8.2 version