erase-circle-sector

Function

Package: common-graphics

Arguments: stream centre radius start-angle length-angle

Erases (i.e. replaces with the background color or texture) the specified circle-sector from stream. A circle-sector is an arc with length length-angle starting at start-angle on the circle defined by radius and center, along with the radii connecting the vertices of the arc with the center (i.e. a shape like a piece of pie). Contrast with draw-circle-sector which draws the circle-sector on stream.

Common Graphics and IDE documentation is described in About Common Graphics and IDE documentation in cgide.htm.

The documentation is described in introduction.htm and the index is in index.htm.

Copyright (c) 1998-2000, Franz Inc. Berkeley, CA., USA. All rights reserved.

Created 2000.10.5.