define("DEFAULT_FONT_PATH", "c:/windows/fonts/simhei.ttf");  
class SingleBar  
{  
 private $_x;  
 private $_y;  
 private $_h;  
 public  $_l = 50;  
 private $_w = null;  
 private $_srcPoints = array();  
 private $_points = array();  
    
 public function __construct($x, $y, $h, $l = 50, $w = null)  
 {  
  $this->_x = $x;  
  $this->_y = $y;  
  $this->_h = $h;  
  $this->_l = $l;  
  $this->_w = $w;  
  $this->_srcPoints = $this->getSrcPoints();  
  $this->_points = $this->getPoints();  
 }  
    
 public function getSrcPoints()  
 {  
  return array(  
   array($this->_x                 , $this->_y),  
   array($this->_x+$this->_l       , $this->_y),  
   array($this->_x+(1.35*$this->_l), $this->_y-(0.35*$this->_l)),  
   array($this->_x+(0.35*$this->_l), $this->_y-(0.35*$this->_l)),  
   array($this->_x                 , $this->_y+$this->_h),  
   array($this->_x+$this->_l       , $this->_y+$this->_h),  
   array($this->_x+(1.35*$this->_l), $this->_y+$this->_h-(0.35*$this->_l))  
  );  
 }  
    
 public function getPoints()  
 {  
  $points = array();  
  foreach($this->_srcPoints as $key => $val)  
  {  
   $points[] = $val[0];  
   $points[] = $val[1];  
  }  
  return $points;  
 }  
    
 public function getTopPoints()  
 {  
  return array_slice($this->_points, 0, 8); //顶坐标  
 }  
    
 public function getBelowPoints()  
 {  
  return array_merge(array_slice($this->_points, 0, 2), array_slice($this->_points, 8, 4), array_slice($this->_points, 2, 2)); //下坐标  
 }  
    
 public function getRightSidePoints()  
 {  
  return array_merge(array_slice($this->_points, 2, 2), array_slice($this->_points, 10, 4), array_slice($this->_points, 4, 2)); //右侧坐标  
 }  
    
 public function draw($image, $topColor, $belowColor, $sideColor, $borderColor = null, $type = ‘LEFT‘)  
 {  
  if (is_null($borderColor))  
  {  
   $borderColor = 0xcccccc;  
  }  
     
  $top_rgb = $this->getRGB($topColor);  
  $below_rgb = $this->getRGB($belowColor);  
  $side_rgb = $this->getRGB($sideColor);  
  $top_color = imagecolorallocate($image, $top_rgb[‘R‘], $top_rgb[‘G‘], $top_rgb[‘B‘]);  
  $below_color = imagecolorallocate($image, $below_rgb[‘R‘], $below_rgb[‘G‘], $below_rgb[‘B‘]);  
  $side_color = imagecolorallocate($image, $side_rgb[‘R‘], $side_rgb[‘G‘], $side_rgb[‘B‘]);  
     
  imagefilledpolygon($image, $this->getTopPoints(), 4, $top_color); //画顶面  
  imagepolygon($image, $this->getTopPoints(), 4, $borderColor); //画顶面边线  
     
  imagefilledpolygon($image, $this->getBelowPoints(), 4, $below_color); //画下面  
  imagepolygon($image, $this->getBelowPoints(), 4, $borderColor); //画下面边线  
     
  if ($type == ‘LEFT‘)  
  {  
   imagefilledpolygon($image, $this->getRightSidePoints(), 4, $side_color); //画右侧面  
   imagepolygon($image, $this->getRightSidePoints(), 4, $borderColor); //画侧面边线  
  }   
 }  
    
 public function getRGB($color)  
 {  
  $ar = array();  
  $color = hexdec($color);  
  $ar[‘R‘] = ($color>>16) & 0xff;  
  $ar[‘G‘] = ($color>>8) & 0xff;  
  $ar[‘B‘] = ($color) & 0xff;  
  return $ar;  
 }  
}  
   
class Bar  
{  
 private $_W;  
 private $_H;  
 private $_bgColor = "ffffff";  
 private $_barHeights = array();  
 private $_barTexts = array();  
 private $_barColors = array();  
 public $_title;  
 public $_paddingTop = 30;  
 public $_paddingBottom = 100;  
 public $_paddingLeft = 45;  
 public $_paddingRight = 2;  
 public $_barL = 50;  
 public $image;  
    
 public function __construct($imgW, $imgH, $barHeights, $barTexts = null, $barColors = null)  
 {  
  $this->_W = $imgW;  
  $this->_H = $imgH;  
  $this->_barHeights = $barHeights;  
  $this->_barTexts   = $barTexts;  
  $this->_barColors  = $barColors;  
  $this->_paddingBottom = $this->resetPaddingBottom();  
  $this->_H = $this->resetHeight();  
  $this->image = imagecreatetruecolor($this->_W, $this->_H);  
 }  
    
 public function stroke()  
 {  
  $this->drawBg();  
  $this->drawBars();  
  $this->drawTitle();  
  $this->drawLables();  
  ob_start();  
  //header("Content-type: image/png");  
  //imagepng($this->image);  
  header("Content-type: " . image_type_to_mime_type(IMAGETYPE_JPEG));  
        imagejpeg($this->image);  
  imagedestroy($this->image);  
 }  
    
 public function drawBg()  
 {  
  $img_w = $this->_W;  
  $img_h = $this->_H;  
  $paddingTop    = $this->_paddingTop;  
  $paddingBottom = $this->_paddingBottom;  
  $paddingLeft   = $this->_paddingLeft;  
  $paddingRight  = $this->_paddingRight;  
  $rgb = $this->getRGB($this->_bgColor);  
  $bg = imagecolorallocate($this->image,$rgb[‘R‘], $rgb[‘G‘], $rgb[‘B‘]);  
  imagefilledrectangle($this->image, 0, 0, $img_w, $img_h, $bg);  
  $side_bg = imagecolorallocatealpha($this->image, 220, 220, 220, 75);  
  $side_bg2 = imagecolorallocate($this->image, 220, 220, 220);  
  $border_color = imagecolorallocate($this->image, 190, 190, 190);  
  $line_color = imagecolorallocate($this->image, 236, 236, 236);  
  $dial_color = imagecolorallocate($this->image, 131, 131, 131);  
     
  $x1 = $paddingLeft;  
  $y1 = $paddingTop;  
  $x2 = $img_w - $paddingRight;  
  $y2 = $img_h - $paddingBottom;  
  imagerectangle($this->image, $x1, $y1, $x2, $y2, $border_color);  
  imagefilledpolygon($this->image, array($x1-5,$y1+10, $x1-5,$y2+10,  $x1,$y2,  $x1,$y1), 4, $side_bg);  
        imagepolygon($this->image, array($x1-5,$y1+10, $x1-5,$y2+10,  $x1,$y2,  $x1,$y1), 4, $border_color);  
  imagefilledpolygon($this->image, array($x1-5,$y2+10, $x2-5,$y2+10,  $x2,$y2,  $x1,$y2), 4, $side_bg);  
        imagepolygon($this->image, array($x1-5,$y2+10, $x2-5,$y2+10,  $x2,$y2,  $x1,$y2), 4, $border_color);  
  imageline($this->image, $x1, $y2, $x2, $y2, $side_bg2);  
     
  $total_h = $img_h - $paddingTop - $paddingBottom;  
  $every_h = $total_h/11;  
  for($i=1; $i<=10; $i++)  
  {  
   imageline($this->image, $x1, $y1+($every_h*$i), $x2, $y1+($every_h*$i), $line_color); //画网线  
  }  
     
  $max_h = max($this->_barHeights);  
  for($i=1; $i<=10; $i++)  
  {  
   $value = $max_h - (($max_h/10)*($i-1));  
   $value = strval($value);  
   $str_w = strlen($value)*5;  
   imageline($this->image, $x1-5-3, $y1+10+($every_h*$i), $x1-3+1, $y1+10+($every_h*$i), $dial_color); //画刻度线  
   imagestring($this->image, 3, $x1-5-3-$str_w-1, $y1+10+($every_h*$i)-5, $value, 0x000000);  
  }  
 }  
    
    
 public function drawBars()  
 {  
  $counts = count($this->_barHeights);  
  if (empty($this->_barColors))  
  {  
   $color = $this->setColor();  
   $this->_barColors = array_slice($color, 0, $counts);  
   //shuffle($this->_barColors);  
  }  
  $every_w = ($this->_W - $this->_paddingLeft - $this->_paddingRight)/$counts; //每一段宽  
  $barL = $every_w;  
  $barL = ($barL > $this->_barL*1.35+6) ? $this->_barL : $barL/1.35 - 6;  
  $max_h = max($this->_barHeights);  
  $ruler_h = $this->_H - $this->_paddingTop - $this->_paddingBottom; //标尺总高度  
  $stander_h = $ruler_h - ($ruler_h/11); //标尺10等分的高度  
  $i = 0;  
  foreach ($this->_barHeights as $val)  
  {  
   $h = ($stander_h/$max_h)*$val;  
   $x = $this->_paddingLeft + ($every_w*$i) + (($every_w - ($barL*1.35))/2);;  
   $y = $this->_H - $this->_paddingBottom + 10 - $h;  
   //$t_color = $this->_barColors[$i];  
   $b_color = $this->_barColors[$i];  
   //$s_color = $this->_barColors[$i];  
   
      
   $rgb = $this->getRGB($this->_barColors[$i]);  
   $R = $rgb[‘R‘] * 0.7;  
   $G = $rgb[‘G‘] * 0.7;  
   $B = $rgb[‘B‘] * 0.7;  
      
   $c1 = $R > 0 ? dechex($R) : ‘00‘;  
   $c2 = $G > 0 ? dechex($G) : ‘00‘;  
   $c3 = $B > 0 ? dechex($B) : ‘00‘;  
   
   $t_color = $b_color;  
   $s_color = $c1. $c2 . $c3;  
   
   $SingleBar = new SingleBar($x, $y, $h, $barL);  
   $SingleBar->draw($this->image, $t_color, $b_color, $s_color);  
   $i++;  
  }  
 }  
    
 public function drawTitle()  
 {  
  if (empty($this->_title))  
  {  
   return;  
  }  
  $font = 5;  
  $font_w = imagefontwidth($font);  
  $len = strlen($this->_title);  
  $x = ($this->_W + $this->_paddingLeft - $this->_paddingRight)/2;  
  $x -= ($len*$font_w)/2;  
  $y = ($this->_paddingTop - $font_w)/2 + 12;  
  //imagestring($this->image, $font, $x, $y, $title, 0x000000);  
  imagettftext($this->image, 12, 0, $x, $y, 0x000000, DEFAULT_FONT_PATH, $this->_title);  
 }  
    
 public function drawLables()  
 {  
  $x1 = $this->_paddingLeft - 5;  
  $y1 = $this->_H - $this->_paddingBottom + 20;  
  $x2 = $this->_W - $this->_paddingRight;  
  $y2 = $this->_H - 10;  
  //imagefilledrectangle($this->image, $x1, $y1, $x2, $y2, 0xffffff);  
  imagerectangle($this->image, $x1, $y1, $x2, $y2, 0x000000);  
  $space = 5;  
  $x = $x1 + 3;  
  $y = $y1 + 3;  
  foreach ($this->_barTexts as $key => $val)  
  {  
   $color = $this->_barColors[$key];  
   $rgb = $this->getRGB($color);  
   $bg = imagecolorallocate($this->image,$rgb[‘R‘], $rgb[‘G‘], $rgb[‘B‘]);  
   imagefilledrectangle($this->image, $x, $y, $x+12, $y+12, $bg); //绘12*12的矩形  
         imagerectangle($this->image, $x, $y, $x+12, $y+12, 0x000000); //绘12*12的矩形框  
   imagettftext($this->image, 12, 0, $x+12+3, $y+12, 0x000000, DEFAULT_FONT_PATH, $val);  
   $x += 12 + $space + (strlen($val)*8) + $space;  
   if ($x + (strlen($val)*8) >= $this->_W - $this->_paddingLeft - $this->_paddingRight)  
   {  
    $x = $x1 + 3;  
    $y = $y + 12 + 3;  
   }  
  }  
 }  
    
 public function resetPaddingBottom()  
 {  
  $ruler_w = $this->_W - $this->_paddingLeft - $this->_paddingRight;  
  $label_w = $this->getLableTotalWidth();  
  $lines = ceil($label_w / $ruler_w);  
  $h = 12 * $lines + (3 * ($lines + 1)) + 30;  
  return $h;  
 }  
    
 public function resetHeight()  
 {  
  $padding_bottom = $this->resetPaddingBottom();  
  if ($this->_H - $padding_bottom < 222)  
  {  
   return 222 + $padding_bottom;  
  }  
  return $this->_H;  
 }  
   
    
 public function getLableTotalWidth()  
 {  
  $counts = count($this->_barTexts);  
  $space = 5;  
  $total_len = 0;  
  foreach ($this->_barTexts as $val)  
  {  
   $total_len += strlen($val);  
  }  
     
  $tx_w = ($total_len * 9) + ((12 + 3 + $space) * $counts);  
  return $tx_w;  
 }  
    
 public function setBg($color)  
 {  
  $this->_bgColor = $color;  
 }  
    
 public function setTitle($title)  
 {  
  $this->_title = $title;  
 }  
    
 public function setColor()  
 {  
  $ar = array(‘ff‘, ‘00‘, ‘33‘, ‘66‘, ‘99‘, ‘cc‘);  
  $color = array();  
  for ($i=0; $i<6; $i++)  
  {  
   for ($j=0; $j<6; $j++)  
   {  
    for($k=0; $k<6; $k++)  
    {  
     $color[] = $ar[$i] . $ar[$j] . $ar[$k];  
    }  
   }  
  }  
     
  $color2 = array();  
  for ($i=1; $i<216; $i += 4)  
  {  
   $color2[] = $color[$i];  
  }  
   
  return $color2;  
 }  
    
 public function getRGB($color)  
 {  
  $ar = array();  
  $color = hexdec($color);  
  $ar[‘R‘] = ($color>>16) & 0xff;  
  $ar[‘G‘] = ($color>>8) & 0xff;  
  $ar[‘B‘] = ($color) & 0xff;  
  return $ar;  
 }  
}  
   
/***/ 
$bar = new Bar(500, 300, array(600, 300, 30, 500, 400, 250, 350, 500), array(‘AAAAA‘, ‘BBBBB‘, ‘CCCCC‘, ‘DDDDD‘, ‘EEEEEE‘, ‘FFFFFF‘, ‘GGGGGGG‘, ‘HHHHHHHHH‘));  
$bar->setTitle(‘打造完美柱状图!‘);  
$bar->stroke();