imagesetpixel(3) [php man page]

IMAGESETPIXEL(3)							 1							  IMAGESETPIXEL(3)

imagesetpixel - Set a single pixel

SYNOPSIS

       bool imagesetpixel (resource  $image, int  $x, int  $y, int  $color)

DESCRIPTION

       imagesetpixel(3) draws a pixel at the specified coordinate.

PARAMETERS

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

	      o $x
		- x-coordinate.

	      o $y
		- y-coordinate.

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

RETURN VALUES

	Returns TRUE on success or FALSE on failure.

EXAMPLES

       Example #1

	      imagesetpixel(3) example

	       A random drawing that ends with a regular picture.

	      <?php

	      $x = 200;
	      $y = 200;

	      $gd = imagecreatetruecolor($x, $y);

	      $corners[0] = array('x' => 100, 'y' =>  10);
	      $corners[1] = array('x' =>   0, 'y' => 190);
	      $corners[2] = array('x' => 200, 'y' => 190);

	      $red = imagecolorallocate($gd, 255, 0, 0);

	      for ($i = 0; $i < 100000; $i++) {
		imagesetpixel($gd, round($x),round($y), $red);
		$a = rand(0, 2);
		$x = ($x + $corners[$a]['x']) / 2;
		$y = ($y + $corners[$a]['y']) / 2;
	      }

	      header('Content-Type: image/png');
	      imagepng($gd);

	      ?>

	      The above example will output something similar to:[NOT DISPLAYABLE MEDIA]Output of example : imagesetpixel()

SEE ALSO

       imagecreatetruecolor(3), imagecolorallocate(3), imagecolorat(3).

PHP Documentation Group 													  IMAGESETPIXEL(3)

IMAGEFILLEDELLIPSE(3)							 1						     IMAGEFILLEDELLIPSE(3)

imagefilledellipse - Draw a filled ellipse

SYNOPSIS

       bool imagefilledellipse (resource  $image, int  $cx, int  $cy, int  $width, int	$height, int  $color)

DESCRIPTION

	Draws an ellipse centered at the specified coordinate on the given $image.

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 ellipse width.

	      o $height
		- The ellipse height.

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

RETURN VALUES

	Returns TRUE on success or FALSE on failure.

EXAMPLES

       Example #1

	      imagefilledellipse(3) example

	      <?php

	      // create a blank image
	      $image = imagecreatetruecolor(400, 300);

	      // fill the background color
	      $bg = imagecolorallocate($image, 0, 0, 0);

	      // choose a color for the ellipse
	      $col_ellipse = imagecolorallocate($image, 255, 255, 255);

	      // draw the white ellipse
	      imagefilledellipse($image, 200, 150, 300, 200, $col_ellipse);

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

	      ?>

	      The above example will output something similar to:[NOT DISPLAYABLE MEDIA]Output of example : imagefilledellipse()

NOTES

       Note

	      This function requires GD 2.0.1 or later (2.0.28 or later is recommended).

SEE ALSO

       imageellipse(3), imagefilledarc(3).

PHP Documentation Group 												     IMAGEFILLEDELLIPSE(3)