imagefilledarc

Draw a partial arc and fill it

&reftitle.description; `bool` `imagefilledarc` `GdImage` `image` `int` `center_x` `int` `center_y` `int` `width` `int` `height` `int` `start_angle` `int` `end_angle` `int` `color` `int` `style`

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

&reftitle.parameters;

&gd.image.description;

`center_x`

- x-coordinate of the center.

`center_y`

- y-coordinate of the center.

`width`

- The arc width.

`height`

- The arc height.

`start_angle`

- The arc start angle, in degrees.

`end_angle`

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

`color`

- &gd.identifier.color;

`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'.
&reftitle.returnvalues;

&return.success;

&reftitle.changelog;

&Version; | &Description;
&gd.changelog.image-param;

&reftitle.examples;

### 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);
    ?>

&example.outputs.similar; Output of example : Creating a 3D looking pie