File: pieChart.class.php

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  Classes of Dodit Suprianto  >  Custom Pie Chart  >  pieChart.class.php  >  Download  
File: pieChart.class.php
Role: Class source
Content type: text/plain
Description: Pie Chart Class File
Class: Custom Pie Chart
Show pie chart graphics
Author: By
Last change: i put imagedestroy($this->image); on the function __destruct
Date: 12 years ago
Size: 5,465 bytes
 

Contents

Class file image Download
<?php
/**
 * @author Dodit Suprianto
 * Email: d0dit@yahoo.com
 * Website: http://www.meozit.com, http://doditsuprianto.com
 *
 * File name: pieChart.class.php
 *
 * Description:
 * Custom pie chart is a class to generate your own pie chart. Easy to use and very simple.
 * You don't need to configure very much. Just set a canvas area, set a value and description for an each pie slice,
 * of course you should add other slices as you like. This pie chart will calculate and generate automatically for you.
 * If need it you can also change the font style, color background and font color.
 * This pie chart could be bind with your data for present a static data such as vooting, data visitor, and other purpose.
 *
 */

class pieChart
{
    private
$canvasWidth;
    private
$canvasHeight;
    private
$tickness;
    private
$color = array();
    private
$image;
    private
$degree = array();
    private
$value = array();
    private
$description = array();
    private
$font;
    private
$fontcolor;
    private
$bgcolor;
    private
$bgR;
    private
$bgG;
    private
$bgB;
    private
$fontR;
    private
$fontG;
    private
$fontB;
    private
$title = array();
       
    public function
__construct($canvasWidth, $canvasHeight, $tickness)
    {
       
$this->canvasWidth = $canvasWidth;
       
$this->canvasHeight = $canvasHeight;
       
$this->image = imagecreatetruecolor($this->canvasWidth, $this->canvasHeight);
       
$this->tickness = $tickness;
    }
   
    public function
setTitle($title)
    {
       
$this->title[] = $title;
    }
   
    public function
setFontColor($fontcolor)
    {
        if (
$fontcolor)
        {
           
$this->fontcolor = imagecolorallocate($this->image, hexdec(substr(trim($fontcolor),1,2)), hexdec(substr(trim($fontcolor),3,2)), hexdec(substr(trim($fontcolor),5,2)));
        } else {
$this->fontcolor = imagecolorallocate($this->image, 0, 0, 0);}
    }
   
    public function
setBGColor($bgcolor)
    {
        if (
$bgcolor)
        {
           
$this->bgR = hexdec(substr(trim($bgcolor), 1, 2));
           
$this->bgG = hexdec(substr(trim($bgcolor), 3, 2));
           
$this->bgB = hexdec(substr(trim($bgcolor), 5, 2));
           
$this->bgcolor = imagecolorallocate($this->image, hexdec(substr(trim($bgcolor),1,2)), hexdec(substr(trim($bgcolor),3,2)), hexdec(substr(trim($bgcolor),5,2)));
        } else {
$this->bgcolor = imagecolorallocate($this->image, 0, 0, 0);}
    }
   
    public function
setFont($font)
    {
       
$this->font = $font;
    }
   
    public function
Tickness($tickness)
    {
       
$this->tickness = $tickness;
    }
   
    private function
pieSlice()
    {
       
$total = 0;
        for (
$i=0; $i < count($this->value); $i++)
        {
           
$total += $this->value[$i];
        }
       
        for (
$i=0; $i < count($this->value); $i++)
        {
           
$this->degree[$i] = $this->value[$i] / $total * 360;
           
$R = mt_rand(25,250);
           
$G = mt_rand(25,250);
           
$B = mt_rand(25,250);
           
$this->color["light"][$i] = imagecolorallocate($this->image, $R, $G, $B);
           
$this->color["dark"][$i] = imagecolorallocate($this->image, $R - 20, $G - 20, $B - 20);
        }
    }
   
    public function
setValue($description, $value)
    {
       
$this->value[] = $value;
       
$this->description[] = $description;
    }
   
    public function
showPie()
    {
       
imagefill($this->image, 0, 0, imagecolorallocate($this->image, $this->bgR, $this->bgG, $this->bgB));
       
       
$pieX = ceil($this->canvasWidth / 2);
       
$pieY = ceil($this->canvasHeight / 2) - 60;
       
       
$this->pieSlice();
           
        for (
$i = $this->tickness + $pieY; $i > $pieY; $i--)
        {
           
$start = 0;
            for (
$iterate=0; $iterate < count($this->value); $iterate++)
            {
               
imagefilledarc($this->image, $pieX, $i, $this->canvasWidth - 50, ($this->canvasWidth - 50)/2, $start, $start + $this->degree[$iterate], $this->color["dark"][$iterate], IMG_ARC_PIE);
                 
$start += $this->degree[$iterate];
            }
        }
   
       
$start = 0;
       
$x1 = 20;
       
$y1 = 0 + $this->canvasHeight * 2 / 3;
       
$x2 = 30;
       
$y2 = 10 + $this->canvasHeight * 2 / 3;
       
        for (
$iterate=0; $iterate < count($this->value); $iterate++)
        {
           
imagefilledarc($this->image, $pieX, $pieY, $this->canvasWidth - 50, ($this->canvasWidth - 50)/2, $start, $start + $this->degree[$iterate], $this->color["light"][$iterate], IMG_ARC_PIE);
           
imagefilledrectangle($this->image, $x1, $y1, $x2, $y2, $this->color["light"][$iterate]);
           
imagettftext($this->image, 9, 0, $x2 + 5, $y2, $this->fontcolor, $this->font, $this->description[$iterate] . " = " . $this->value[$iterate]);
           
$start += $this->degree[$iterate];
           
$y1 += 15;
           
$y2 += 15;
        }
       
       
$py = 30;
        for (
$i=0; $i<count($this->title); $i++)
        {
           
$textbox = imagettfbbox(12, 0, $this->font, $this->title[$i]);
           
$px = ($this->canvasWidth - $textbox[4])/2;
           
$py = 30 + $i * 30;
       
           
imagettftext($this->image, 12, 0, $px, $py, $this->fontcolor, $this->font, $this->title[$i]);
        }

       
header('Content-type: image/png');
       
imagepng($this->image);
    }
   
    public function
__destruct()
    {
       
imagedestroy($this->image);
    }
}

$img = new pieChart(300, 430, 26);
$img->setFont("lsans.ttf");
$img->setValue("http://www.doditsuprianto.com", 56);
$img->setValue("http://www.meozit.com", 100);
$img->setValue("http://www.goiklan.com", 78);
$img->setValue("http://www.phpclasses.org", 190);
$img->setValue("http://www.hotscripts.com",120);
$img->setValue("http://www.google.com", 45);
$img->setBGColor("#001122");
$img->setFontColor("#FFFFFF");
$img->setTitle("FIRST TITLE ON THE FIRST LINE");
$img->setTitle("SECOND TITLE ON THE SECOND LINE");
$img->showPie();
?>


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