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<?php/* * 中文圆形印章类 * @author lkk/lianq.net * @create on 10:03 2012-5-29 * @example: * $seal = new circleSeal（"你我他坐站走东西南北中",75,6,24,0,0,16,40）; * $seal->doImg（）; */ class circleSeal {private $sealString;//印章字符private $strMaxLeng;//最大字符长度private $sealRadius;//印章半径private $rimWidth; //边框厚度private $innerRadius;//内圆半径private $startRadius;//五角星半径private $startAngle;//五角星倾斜角度private $backGround;//印章颜色private $centerDot; //圆心坐标private $img;//图形资源句柄private $font; //指定的字体private $fontSize; //指定字体大小private $width; //图片宽度private $height;//图片高度private $points;//五角星各点坐标private $charRadius;//字符串半径private $charAngle; //字符串倾斜角度private $spacing;//字符间隔角度 //构造方法public function __construct（$str ="", $rad = 75, $rmwidth = 6, $strad = 24, $stang = 0, $crang = 0, $fsize = 16, $inrad =0）{$this->sealString= empty（$str） ? "印章测试字符串" : $str;$this->strMaxLeng= 12;$this->sealRadius= $rad;$this->rimWidth = $rmwidth;$this->startRadius = $strad;$this->startAngle= $stang;$this->charAngle= $crang;$this->centerDot= array（"x"=>$rad, "y"=>$rad）;$this->font = dirname（__FILE__） ."/simkai.ttf";$this->fontSize = $fsize;$this->innerRadius = $inrad;//默认0,没有$this->spacing = 1;} //创建图片资源private function createImg（）{$this->width= 2 * $this->sealRadius;$this->height= 2 * $this->sealRadius;$this->img = imagecreate（$this->width, $this->height）;imagecolorresolvealpha（$this->img,255,255,255,127）;$this->backGround= imagecolorallocate（$this->img,255,0,0）;} //画印章边框private function drawRim（）{for（$i=0;$i<$this->rimWidth;$i++）{imagearc（$this->img,$this->centerDot["x"],$this->centerDot["y"],$this->width - $i,$this->height - $i,0,360,$this->backGround）;}} //画内圆private function drawInnerCircle（）{imagearc（$this->img,$this->centerDot["x"],$this->centerDot["y"],2*$this->innerRadius,2*$this->innerRadius,0,360,$this->backGround）;} //画字符串private function drawString（）{//编码处理$charset = mb_detect_encoding（$this->sealString）;if（$charset ！= "UTF-8"）{$this->sealString = mb_convert_encoding（$this->sealString, "UTF-8", "GBK"）;} //相关计量$this->charRadius = $this->sealRadius - $this->rimWidth - $this->fontSize; //字符串半径$leng= mb_strlen（$this->sealString,"utf8"）; //字符串长度if（$leng > $this->strMaxLeng） $leng = $this->strMaxLeng;$avgAngle= 360 / （$this->strMaxLeng）;//平均字符倾斜度 //拆分并写入字符串$words = array（）; //字符数组for（$i=0;$i<$leng;$i++）{$words[] = mb_substr（$this->sealString,$i,1,"utf8"）;$r = 630 + $this->charAngle + $avgAngle*（$i - $leng/2） + $this->spacing*（$i-1）; //坐标角度$R = 720 - $this->charAngle + $avgAngle*（$leng-2*$i-1）/2 + $this->spacing*（1-$i）;//字符角度$x = $this->centerDot["x"] + $this->charRadius * cos（deg2rad（$r））; //字符的x坐标$y = $this->centerDot["y"] + $this->charRadius * sin（deg2rad（$r））; //字符的y坐标imagettftext（$this->img, $this->fontSize, $R, $x, $y, $this->backGround, $this->font, $words[$i]）;}} //画五角星private function drawStart（）{$ang_out = 18 + $this->startAngle;$ang_in = 56 + $this->startAngle;$rad_out = $this->startRadius;$rad_in = $rad_out * 0.382;for（$i=0;$i<5;$i++）{//五个顶点坐标$this->points[] = $rad_out * cos（2*M_PI/5*$i - deg2rad（$ang_out）） + $this->centerDot["x"];$this->points[] = $rad_out * sin（2*M_PI/5*$i - deg2rad（$ang_out）） + $this->centerDot["y"]; //内凹的点坐标$this->points[] = $rad_in * cos（2*M_PI/5*（$i+1） - deg2rad（$ang_in）） + $this->centerDot["x"];$this->points[] = $rad_in * sin（2*M_PI/5*（$i+1） - deg2rad（$ang_in）） + $this->centerDot["y"];}imagefilledpolygon（$this->img, $this->points, 10, $this->backGround）;} //输出private function outPut（）{header（"Content-type:image/png"）;imagepng（$this->img）;imagedestroy（$this->img）;} //对外生成public function doImg（）{$this->createImg（）;$this->drawRim（）;$this->drawInnerCircle（）;$this->drawString（）;$this->drawStart（）;$this->outPut（）;}}

<?php@$hos=iconv（"GBK", "UTF-8", $_GET["hos"]）;if（！isset（$hos））exit;$im=ImageCreate（150,150）;$gray=ImageColorResolveAlpha（$im,200,200,200,127）;$red=ImageColorAllocate（$im,230,150,150）;for（$i=0;$i<6;$i++）ImageArc（$im,75,75,148-$i,148-$i,0,360,$red）;$stock="C:WINDOWSFontssimkai.ttf";$point="★";$size=30;ImageTTFText（$im,$size,0,72-$size/2,72+$size/2,$red,$stock,$point）;$a=75;$b=-75;//中心点坐标$r=65;$m=40;//半径，角度$size=16;//字体大小$r=$r-$size;$word=array（）;$max=18;$count=mb_strlen（$hos,"utf8"）;if（$count>$max）$count=$max;if（$count>12）$m=floor（360/$count）;else if（$count>5）$m-=$count;for（$i=0;$i<$count;$i++）$word[]=mb_substr（$hos,$i,1,"utf8"）;$j=floor（$count/2）;if（$j！=$count/2）{ for（$i=$j;$i>=0;$i--） { $arc=$m*（$j-$i）+$size/2; $x=round（$r*cos（（90+$arc）*M_PI/180））+$a; $y=-1*（round（$r*sin（（90+$arc）*M_PI/180））+$b）; if（$arc<10）$arc=0;ImageTTFText（$im,$size,$arc,$x,$y,$red,$stock,$word[$i]）; $arc=$m*（$j-$i）-$size/2; $x=round（$r*cos（（90-$arc）*M_PI/180））+$a; $y=-1*（round（$r*sin（（90-$arc）*M_PI/180））+$b）; if（$arc<10）$arc=0;ImageTTFText（$im,$size,-$arc,$x,$y,$red,$stock,$word[$j+$j-$i]）; }}else{ $j=$j-1; for（$i=$j;$i>=0;$i--） { $arc=$m/2+$m*（$j-$i）+$size/2; $x=round（$r*cos（（90+$arc）*M_PI/180））+$a; $y=-1*（round（$r*sin（（90+$arc）*M_PI/180））+$b）; ImageTTFText（$im,$size,$arc,$x,$y,$red,$stock,$word[$i]）;$arc=$m/2+$m*（$j-$i）-$size/2; $x=round（$r*cos（（90-$arc）*M_PI/180））+$a; $y=-1*（round（$r*sin（（90-$arc）*M_PI/180））+$b）; ImageTTFText（$im,$size,-$arc,$x,$y,$red,$stock,$word[$j+$j+1-$i]）; }}header（"Content-Type:image/png"）;ImagePNG（$im）;?>