php打造智能化的柱状图程序,用于报表等_php实例

php打造智能化的柱状图程序,用于报表等

<?php
/***
 * @project Bar Graph Program
 * @license GPL
 * @package
 * @file GrapBar.php
 * @date 2007-4-3
 * @version 1.0
 * @last modified 

 * 定义 柱状图(柱形图) 类
 *
 * 注意,使用前请确保字体路径存在并允许访问,如果出错,还要检查在php.ini配置中的open_basedir项,如果没此路径请添加,或在程序中设置包含
 *
 * 智能化的柱状图程序,用于报表等
 *
 ***/ 

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, 360), array('AAAAA', 'BBBBB', 'CCCCC', 'DDDDD', 'EEEEEE', 'FFFFFF', 'GGGGGGG', 'HHHHHHHHH'));
$bar->setTitle('打造完美柱状图!');
$bar->stroke();
/***/
?>

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时间: 2024-11-13 06:41:05

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