Php/docs/function.imagefilledarc

• PHP Manual
• GD and Image Functions
• Draw a partial arc and fill it

imagefilledarc

(PHP 4 >= 4.0.6, PHP 5, PHP 7)

imagefilledarc — Draw a partial arc and fill it

Description

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

Draws a partial arc centered at the specified coordinate in the given image.

Parameters

image

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

cx

x-coordinate of the center.

cy

y-coordinate of the center.

width

The arc width.

height

The arc height.

start

The arc start angle, in degrees.

end

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

color

A color identifier created with imagecolorallocate().

style

A bitwise OR of the following possibilities:

1. IMG_ARC_PIE
2. IMG_ARC_CHORD
3. IMG_ARC_NOFILL
4. 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($image, 0x90, 0x00, 0x00);// make the 3D effectfor ($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 , $red, IMG_ARC_PIE);// flush imageheader('Content-type: image/png');imagepng($image);imagedestroy($image);?>

The above example will output something similar to: