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(); /***/ ?>