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)

IMAGEARC(3)								 1							       IMAGEARC(3)

imagearc - Draws an arc

SYNOPSIS

       bool imagearc (resource	$image, int  $cx, int  $cy, int  $width, int  $height, int  $start, int  $end, int  $color)

DESCRIPTION

       imagearc(3) draws an arc of circle centered at the given coordinates.

PARAMETERS

	      o $
		image -An image resource, returned by one of the image creation functions, such as imagecreatetruecolor(3).

	      o $cx
		- x-coordinate of the center.

	      o $cy
		- y-coordinate of the center.

	      o $width
		- The arc width.

	      o $height
		- The arc height.

	      o $start
		- The arc start angle, in degrees.

	      o $end
		- The arc end angle, in degrees. 0o is located at the three-o'clock position, and the arc is drawn clockwise.

	      o $color
		- A color identifier created with imagecolorallocate(3).

RETURN VALUES

	Returns TRUE on success or FALSE on failure.

EXAMPLES

       Example #1

	      Drawing a circle with imagearc(3)

	      <?php

	      // create a 200*200 image
	      $img = imagecreatetruecolor(200, 200);

	      // allocate some colors
	      $white = imagecolorallocate($img, 255, 255, 255);
	      $red   = imagecolorallocate($img, 255,   0,   0);
	      $green = imagecolorallocate($img,   0, 255,   0);
	      $blue  = imagecolorallocate($img,   0,   0, 255);

	      // draw the head
	      imagearc($img, 100, 100, 200, 200,  0, 360, $white);
	      // mouth
	      imagearc($img, 100, 100, 150, 150, 25, 155, $red);
	      // left and then the right eye
	      imagearc($img,  60,  75,	50,  50,  0, 360, $green);
	      imagearc($img, 140,  75,	50,  50,  0, 360, $blue);

	      // output image in the browser
	      header("Content-type: image/png");
	      imagepng($img);

	      // free memory
	      imagedestroy($img);

	      ?>

	      The above example will output something similar to:[NOT DISPLAYABLE MEDIA]Output of example : Drawing a circle with imagearc()

SEE ALSO

       imagefilledarc(3), imageellipse(3), imagefilledellipse(3).

PHP Documentation Group 													       IMAGEARC(3)