PHP Image manipulation: 3D graph, zoom, rotate, crop, add watermark (i)

Source: http://www.ido321.com/875.html

1, using the PHP GD library function to draw 3D fan chart

   1:  <?php

   2:  header ("Content-type","Text/html;charset=utf-8");

   3:/* Sector chart * /

   4:  $image = Imagecreatetruecolor (+);    / * Create canvas *  /

   5:

   6:/* Set the color required for the canvas * /

   7:  $white = imagecolorallocate ($image, 0xff,0xff,0xff);

   8:  $gray = imagecolorallocate ($image, 0xc0, 0xc0, 0xc0);

   9:  $darkgray = imagecolorallocate ($image, 0x90, 0x90, 0x90);

  Ten:  $navy = imagecolorallocate ($image, 0x00, 0x00, 0x80);

One   :  $darknavy = imagecolorallocate ($image, 0x00, 0x00, 0x50);

  :  $red = imagecolorallocate ($image, 0xFF, 0x00, 0x00);

  :  $darkred = imagecolorallocate ($image, 0x90, 0x00, 0x00);

  14:

*   /* Fill Background color * /

  :  imagefill ($image, 0, 0, $white);

  17:

  :/*3d production * /

  :for($i = $, $i > $i-)

  :  {

  :     Imagefilledarc ($image, $i, -160, $darknavy, img_arc_pie);

A   :     Imagefilledarc ($image, $i, $darkgray, Img_arc_pie , and,);

Max   :     Imagefilledarc ($image, $i, $darkred, Img_arc_pie) , Max.

  :  }

*   /* Draw Elliptical arc and fill * /

  :  imagefilledarc ($image, -160, Max, $darknavy, Img_arc_pie);

  : imagefilledarc ($image,-------------------- $darkgray, img_arc_pie);

  : imagefilledarc ($image,---------------------- $darkred, img_arc_pie);

  29:

  :/* Draw a String * /

  :"30%", $white);

  :"60%", $white);

  :"10%", $white);

  34:

*   /* Output image * /

  £ º  header ("Content-type:image/png");

  Panax Notoginseng:  imagepng ($image);

  38:

  :/* Release resources * /

Max   :  Imagedestroy ($image);

In   :  ?>

Effect:

2. Zooming the picture

   1:  <div>

   2:     

   3:     <img src="1.png" style= "border:1px solid red;" >

   4:  </div>

   5:  <?php

   6:  header ("Content-type","Text/html;charset=utf-8");

   7:

   8:/*

   9:* Picture Zoom

  :* @param string $filename   The URL of the picture

One   :* @param int    $width      Set the maximum width of the picture zoom

  * @param int    $height     Set the maximum height of picture zoom

  * /

  :function thumb ($filename, $width =130, $height =130)

  :  {

*   /     * Get the size of the original image * /

  :     list($width _orig, $height _orig) = getimagesize ($filename);

  18:

       */* According to the parameters $width and $height, the proportional height and width are converted .

  :     if($width && ($width _orig < $height _orig))

  :     {

  :         $width = ($height/$height _orig) * $width _orig;

  :     }

  :     Else

  :     {

  :         $height = ($width/$width _orig) * $height _orig;

  :     }

  28:

*   /     * Create a canvas with a new size * /

  :     $image _p = Imagecreatetruecolor ($width, $height);

  31:

*   /     * Get Image resources * /

  :     $image = imagecreatefrompng ($filename);

  34:

*   /     * Use imagecopyresampled zoom * /

       imagecopyresampled ($image _p, $image, 0, 0, 0, 0, $width, $height, $width _orig, $height _orig); 

  37:

       */* Save scaled Picture and name */

  :     imagepng ($image _p,' test.png ');

  40:

All   :/     * FREE resources * /

  :     Imagedestroy ($image _p);

  :     Imagedestroy ($image);

  :  }

*   /* Call function * /

  :  thumb (' 1.png ');

?>   :

  :  <div>

  $     

  :     <img src="test.png" style= "border:1px solid red;" >

  Wuyi:  </div>

Effect:

PHP Image manipulation: 3D graph, zoom, rotate, crop, add watermark (i)