ps_arc(3) [php man page]

PS_ARC(3)								 1								 PS_ARC(3)

ps_arc - Draws an arc counterclockwise

SYNOPSIS

       bool ps_arc (resource  $psdoc, float  $x, float	$y, float  $radius, float  $alpha, float  $beta)

DESCRIPTION

	Draws  a  portion  of a circle with at middle point at ($x, $y). The arc starts at an angle of $alpha and ends at an angle of $beta. It is
       drawn counterclockwise (use ps_arcn(3) to draw clockwise). The subpath added to the current path starts on the arc at angle $alpha and ends
       on the arc at angle $beta.

PARAMETERS

	      o $psdoc
		- Resource identifier of the postscript file as returned by ps_new(3).

	      o $x
		- The x-coordinate of the circle's middle point.

	      o $y
		- The y-coordinate of the circle's middle point.

	      o $radius
		- The radius of the circle

	      o $alpha
		- The start angle given in degrees.

	      o $beta
		- The end angle given in degrees.

RETURN VALUES

	Returns TRUE on success or FALSE on failure.

SEE ALSO

       ps_arcn(3).

PHP Documentation Group 														 PS_ARC(3)

Geometry::Primitive::Arc(3pm)				User Contributed Perl Documentation			     Geometry::Primitive::Arc(3pm)

NAME

       Geometry::Primitive::Arc - Portion of the circumference of a Circle

DESCRIPTION

       Geometry::Primitive::Arc represents a closed segment of a curve.

SYNOPSIS

	 use Geometry::Primitive::Arc;

	 my $arc = Geometry::Primitive::Arc->new(
	     angle_start => 0,
	     angle_end => 1.57079633,
	     radius => 15
	 );

ATTRIBUTES

   angle_start
       The starting angle for this arc in radians.

   angle_end
       The ending angle for this arc in radians.

   radius
       Returns the radius of the arc.

   origin
       Set/Get the origin of this arc.

METHODS

   new
       Creates a new Geometry::Primitive::Arc

   get_point_at_angle
       Given angle in radians returns the point at that angle on this arc.  Returns undef if the angle falls outside this arc's range.

   length
       Returns the length of this arc.

   point_end
       Get the end point.  Provided for Shape role.

   point_start
       Get the start point.  Provided for Shape role.

   scale ($amount)
       Increases the radius by multiplying it by the supplied amount.

AUTHOR

       Cory Watson <gphat@cpan.org>

COPYRIGHT &; LICENSE
       You can redistribute and/or modify this code under the same terms as Perl itself.

perl v5.10.1							    2010-01-10					     Geometry::Primitive::Arc(3pm)