Php method to draw a sector

This article mainly introduces the php method for creating a slice, involving the imagefilledarc method in the GD library. For more information, see

This article mainly introduces the php method for creating a slice, involving the imagefilledarc method in the GD library. For more information, see

This example describes how to draw a slice in php. Share it with you for your reference. The details are as follows:

Php draws a slice. For parameter descriptions, except for the last parameter, the parameters are the same as those of the arc. For details, refer to the previous "php Method for drawing an arc". The last parameter has four types. They are:

IMG_ARC_PIE, IMG_ARC_CHORD, IMG_ARC_NOFILL, and IMG_ARC_EDGED. For details about the parameters, see imagefilledarc in the php manual.

The Code is as follows:

<? Php
// 1. Create a canvas
$ Im = imagecreatetruecolor (300,200); // create a real-color image. The default background is black and the image identifier is returned. Another function, imagecreate, is not recommended.
// 2. Draw the desired image
$ Red = imagecolorallocate ($ im, 255, 0, 0); // create a color
Imagefilledarc ($ im, 0,120, $ red, IMG_ARC_PIE); // draws a sector function
// 3. output image
Header ("content-type: image/png ");
Imagepng ($ im); // output to the page. If the second parameter [, $ filename] exists, the image is saved.
// 4. Destroy images and release memory
Imagedestroy ($ im );
?>

I hope this article will help you with php programming.