imagefilledarc(3) [php man page]

IMAGEFILLEDARC(3)							 1							 IMAGEFILLEDARC(3)

imagefilledarc - Draw a partial arc and fill it

SYNOPSIS

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

DESCRIPTION

	Draws a partial arc centered at the specified coordinate in 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 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).

	      o $style
		- A bitwise OR of the following possibilities:

		     o IMG_ARC_PIE

		     o IMG_ARC_CHORD

		     o IMG_ARC_NOFILL

		     o IMG_ARC_EDGED

	      IMG_ARC_PIE  and	IMG_ARC_CHORD  are  mutually exclusive; IMG_ARC_CHORD just connects the starting and ending angles with a straight
	      line, while IMG_ARC_PIE produces a rounded edge.	IMG_ARC_NOFILL indicates that the arc or chord should  be  outlined,  not  filled.
	      IMG_ARC_EDGED, used together with IMG_ARC_NOFILL, indicates that the beginning and ending angles should be connected to the center -
	      this is a good way to outline (rather than fill) a 'pie slice'.

RETURN VALUES

	Returns TRUE on success or FALSE on failure.

EXAMPLES

       Example #1

	      Creating a 3D looking pie

	      <?php

	      // create image
	      $image = imagecreatetruecolor(100, 100);

	      // allocate some colors
	      $white	= imagecolorallocate($image, 0xFF, 0xFF, 0xFF);
	      $gray	= imagecolorallocate($image, 0xC0, 0xC0, 0xC0);
	      $darkgray = imagecolorallocate($image, 0x90, 0x90, 0x90);
	      $navy	= imagecolorallocate($image, 0x00, 0x00, 0x80);
	      $darknavy = imagecolorallocate($image, 0x00, 0x00, 0x50);
	      $red	= imagecolorallocate($image, 0xFF, 0x00, 0x00);
	      $darkred	= imagecolorallocate($image, 0x90, 0x00, 0x00);

	      // make the 3D effect
	      for ($i = 60; $i > 50; $i--) {
		 imagefilledarc($image, 50, $i, 100, 50, 0, 45, $darknavy, IMG_ARC_PIE);
		 imagefilledarc($image, 50, $i, 100, 50, 45, 75 , $darkgray, IMG_ARC_PIE);
		 imagefilledarc($image, 50, $i, 100, 50, 75, 360 , $darkred, IMG_ARC_PIE);
	      }

	      imagefilledarc($image, 50, 50, 100, 50, 0, 45, $navy, IMG_ARC_PIE);
	      imagefilledarc($image, 50, 50, 100, 50, 45, 75 , $gray, IMG_ARC_PIE);
	      imagefilledarc($image, 50, 50, 100, 50, 75, 360 , $red, IMG_ARC_PIE);

	      // flush image
	      header('Content-type: image/png');
	      imagepng($image);
	      imagedestroy($image);
	      ?>

	      The above example will output something similar to:[NOT DISPLAYABLE MEDIA]Output of example : Creating a 3D looking pie

NOTES

       Note

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

PHP Documentation Group 													 IMAGEFILLEDARC(3)

Check Out this Related Man Page

IMAGELAYEREFFECT(3)							 1						       IMAGELAYEREFFECT(3)

imagelayereffect - Set the alpha blending flag to use the bundled libgd layering effects

SYNOPSIS

       bool imagelayereffect (resource	$image, int  $effect)

DESCRIPTION

	Set the alpha blending flag to use the bundled libgd layering effects.

PARAMETERS

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

	      o $effect
		- One of the following constants:

		     o IMG_EFFECT_REPLACE - Use pixel replacement (equivalent of passing TRUE to imagealphablending(3))

		     o IMG_EFFECT_ALPHABLEND - Use normal pixel blending (equivalent of passing FALSE to imagealphablending(3))

		     o IMG_EFFECT_NORMAL - Same as IMG_EFFECT_ALPHABLEND.

		     o IMG_EFFECT_OVERLAY  -  Overlay  has the effect that black background pixels will remain black, white background pixels will
		       remain white, but grey background pixels will take the colour of the foreground pixel.

RETURN VALUES

	Returns TRUE on success or FALSE on failure.

EXAMPLES

       Example #1

	      imagelayereffect(3) example

	      <?php
	      // Setup an image
	      $im = imagecreatetruecolor(100, 100);

	      // Set a background
	      imagefilledrectangle($im, 0, 0, 100, 100, imagecolorallocate($im, 220, 220, 220));

	      // Apply the overlay alpha blending flag
	      imagelayereffect($im, IMG_EFFECT_OVERLAY);

	      // Draw two grey ellipses
	      imagefilledellipse($im, 50, 50, 40, 40, imagecolorallocate($im, 100, 255, 100));
	      imagefilledellipse($im, 50, 50, 50, 80, imagecolorallocate($im, 100, 100, 255));
	      imagefilledellipse($im, 50, 50, 80, 50, imagecolorallocate($im, 255, 100, 100));

	      // Output
	      header('Content-type: image/png');

	      imagepng($im);
	      imagedestroy($im);
	      ?>

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

NOTES

       Note

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

PHP Documentation Group 												       IMAGELAYEREFFECT(3)

Linux and UNIX Man Pages

imagefilledarc(3) [php man page]

Check Out this Related Man Page