NAME

arc - draws a circular arc

SPECIFICATION

C
arc(x, y, radius, startang, endang)
Coord x, y, radius;
Angle startang, endang;

arci(x, y, radius, startang, endang)
Icoord x, y, radius;
Angle startang, endang;

arcs(x, y, radius, startang, endang)
Scoord x, y, radius;
Angle startang, endang;

FORTRAN
subroutine arc(x, y, radius, stang, endang)
real x, y, radius
integer*4 stang, endang

subroutine arci(x, y, radius, stang, endang)
integer*4 x, y, radius, stang, endang

subroutine arcs(x, y, radius, stang, endang)
integer*2 x, y, radius
integer*4 stang, endang

Pascal
procedure arc(x, y, radius: Coord; startang, endang: Angle);

procedure arci(x, y, radius: Icoord; startang, endang: Angle);

procedure arcs(x, y, radius: Scoord; startang, endang: Angle);

DESCRIPTION

arc draws a circular arc.  The arc is defined by a center point, a starting angle, an ending angle, and a radius.  The angle is measured from the positive x-axis and specified in integral tenths of degrees.  Positive angles describe counterclockwise rotations.  Since an arc is a two-dimensional shape, these commands have only 2D forms.  The arc is drawn in the x-y plane, with z=0, and uses the current color, linestyle, linewidth and writemask.  It is drawn counterclockwise from startang to endang, so that an arc from 10 degrees to 5 degrees is a nearly complete circle.  After the execution of the arc command, the graphics position is undefined. 

SEE ALSO

arcf, circ, circf, crv

Version 2.3  —  July 04, 1985