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הקוד:

PHP קוד:

<?
#class by Yonatan Rab - yonatan.rab@gmail.com - 72329528
#all rights reseved

class graph
{

var    $Graph;
var $Image;
var $Angels;
var $SliceCount;
var $Slice;
var $Colors;

    function graph($width,$height)
    {
        $this->Graph["title"]=$title;
        $this->Graph["width"]=$width;
        $this->Graph["height"]=$height;
        header("Content-type: image/png");
        $this->Image = @imagecreate($width, $height) or die("Cannot Initialize new GD image");
    }

    function makeTitle($title,$font) {
        $width=imagefontwidth($font);
        $height=imagefontheight($font);
        imagefilledpolygon($this->Image,
                 array (
                    65, 6,
                    65, (6+$height),
                 (65+($width*strlen($title))+4), (6+$height),
                    (65+($width*strlen($title))+4), 6
                 ),
                 4,
                 $this->Colors["white"]);
        imagepolygon($this->Image,
                 array (
                    65, 6,
                    65, (6+$height),
                 (65+($width*strlen($title))+4), (6+$height),
                    (65+($width*strlen($title))+4), 6
                 ),
                 4,
                 $this->Colors["black"]);
        imagestring($this->Image, $font, 68, 6, $title, $this->Colors["black"]);
    }
    function addVote($num,$vote,$r,$g,$b)
    {
        $this->Angels[$num]=$vote;
        $this->Colors[$num]=imagecolorallocate($this->Image, $r, $g, $b);
    }
    function graphBG($r,$g,$b)
    {
        $this->Colors[0]=imagecolorallocate($this->Image, $r, $g, $b);
        $this->Colors["black"] = imagecolorallocate($this->Image, 0, 0, 0);
        $this->Colors["white"] = imagecolorallocate($this->Image, 255, 255, 255);
    }
    function makeAngels()
    {
        $this->SliceCount=count($this->Angels);
        $ar_num_count=0;
        for ($i=1;$i<=$this->SliceCount;$i++) {
            $ar_num_count=$ar_num_count+$this->Angels[$i];
        }
        $this->Slice=360/$ar_num_count;
        $count=0;
    }


    function makeDeatils()
    {
        $x=10;
        $y=10;
        $z=0;

        for ($i=1;$i<=$this->SliceCount;$i++) {
            $ar_num_count=$ar_num_count+$this->Angels[$i];
        }

        //÷åôñà âãåìä
        imagefilledpolygon($this->Image,
             array (
                6, 6,
                5, (9+(15*$this->SliceCount)),
                61, (9+(15*$this->SliceCount)),
                61, 6
             ),
             4,
             $this->Colors["white"]);
        imagepolygon($this->Image,
             array (
                6, 6,
                6, (9+(15*$this->SliceCount)),
                61, (9+(15*$this->SliceCount)),
                61, 6
             ),
             4,
             $this->Colors["black"]);

        //÷åôñàåú ÷èðåú
        for ($i=1;$i<=$this->SliceCount;$i++)
        {
            imagefilledpolygon($this->Image,
                 array (
                    $x, $y+$z,
                    $x, ($y+10+$z),
                    ($x+10), ($y+10+$z),
                    ($x+10), $y+$z
                 ),
                 4,
                 $this->Colors[$i]);
            imagepolygon($this->Image,
                 array (
                    $x, $y+$z,
                    $x, ($y+10+$z),
                    ($x+10), ($y+10+$z),
                    ($x+10), $y+$z
                 ),
                 4,
                 $this->Colors["black"]);

            $num=$this->Angels[$i]*100/$ar_num_count;
         imagestring($this->Image, 2, ($x+14), ($y+$z-1), round($num, 2)."%", $this->Colors["black"]);

            $y+=10;
            $z+=5;
        }
    }


    function drawAngels()
    {
        $c=0;
        for ($i=1;$i<=$this->SliceCount;$i++) {
            $x=$this->Slice*$this->Angels[$i]+$c;
         imagefilledarc($this->Image, $this->Graph["width"]/2, $this->Graph["height"]/2, $this->Graph["width"]*0.8, $this->Graph["height"]*0.8, $c, $x, $this->Colors[$i], IMG_ARC_PIE);
            $c=$x;
        }
        imageellipse($this->Image, $this->Graph["width"]/2, $this->Graph["height"]/2, $this->Graph["width"]*0.8, $this->Graph["height"]*0.8, $this->Colors["black"]);
    }
    
    function finish ()
    {
        imagepng($this->Image);
        imagedestroy($this->Image);
    }

}

$bla=new graph(400,400);
$bla->graphBG(255,255,200);
$bla->makeTitle("What do you say about the site?",2);
$bla->addVote(1, 23, 255, 0, 0);
$bla->addVote(2, 24, 0, 0, 255);
$bla->addVote(3, 25, 0, 255, 0);
$bla->addVote(4, 26, 255, 0, 255);
$bla->addVote(5, 155, 150, 150, 150);
$bla->makeAngels();
$bla->drawAngels();
$bla->makeDeatils();
$bla->finish();

?>

אם מישהו רוצה לראות את זה www.yonatan.co.il/graph.php
קצת הסברים

PHP קוד:

<?

$bla=new graph(400,400);
//יוצר גראף חדש בגודל 400 על 400
$bla->graphBG(255,255,200);
//קובע את צבע הרקע של הגראף
$bla->makeTitle("What do you say about the site?",2);
//כותרת לגראף - לא חובה
$bla->addVote(1, 23, 255, 0, 0);
//מוסיף הצבעה חדשה
//1=מספר התוצאה
//23=מספר התשובות
//255, 0, 0= צבע
$bla->addVote(2, 24, 0, 0, 255);
$bla->addVote(3, 25, 0, 255, 0);
$bla->addVote(4, 26, 255, 0, 255);
$bla->addVote(5, 155, 150, 150, 150);
$bla->makeAngels();
//מחשב זוויות וכ'ו...
$bla->drawAngels();
//מצייר את הגראף
$bla->makeDeatils();
//יוצר את הריבוע הקטן עם הפרטים - לא חובה
$bla->finish();
//מסיים את הגראף

?>

אשמח לשמוע ביקורות, איך הייתי יכול לשפר מה לא טוב וכ'ו...