转载 php制作公司五章,圆形印章和椭圆形印章,正方形印章,圆角

转载自：https://www.cnblogs.com/jackduan/p/7827346.html

image image image image image

都是写死的,代码重复太多.没有搜到椭圆的文字均匀分布的,数学也不好,有哪位大神能算一下.圆角框就是重叠套起来的,度娘没找到php直接画圆角框的,太麻烦了,不过还好做出来了,有更方便的求推荐.

<?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 $numRadius;  //数字半径
  private $charAngle;   //字符串倾斜角度
  private $spacing;    //字符间隔角度
    private  $sealNum;    //数字
    private  $sealName;    //章名字
    private  $yheight; //字符的y坐标;


  
  //构造方法
  public function __construct($str ='',$num = '',$rad = 100, $rmwidth = 6, $strad = 28, $stang = 0, $crang = 0, $fsize = 16, $inrad =0){
    $this->sealString  = empty($str) ? '印章测试字符串' : $str;
    $this->sealNum  = empty($num) ? '010101010' : $num;
    $this->strMaxLeng  = 18;
    $this->sealRadius  = $rad;
    $this->rimWidth   = $rmwidth;
    $this->startRadius = $strad;
    $this->startAngle  = $stang;
    $this->charAngle  = $crang;
    $this->centerDot  = array('x'=>$rad, 'y'=>$rad);
    $this->font     = './simkai.ttf';
    $this->fontSize   = $fsize;
    $this->innerRadius = $inrad;  //默认0,没有
    $this->spacing   = 1;
      $this->width    = 2 * $this->sealRadius;
      $this->height    = 2 * $this->sealRadius;
      $this->yheight = 150; //字符的y坐标
  }
  
  //创建图片资源
  private function createImg(){
    $this->img     = imagecreate($this->width, $this->height);
    imagecolorresolvealpha($this->img,255,255,255,127);
    $this->backGround  = imagecolorallocate($this->img,255,0,0);
  }
  
  //画印章边框imagerectangle
  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);
    }
  }

    //画印章边框
    private function drawSqu(){
        for($i=0;$i<$this->rimWidth;$i++){
            imagerectangle($this->img,0+$i,0+$i,120-$i,120-$i,$this->backGround);
        }
    }
    //画正方形的名字
    private function drawName1(){
        //编码处理
        $this->sealName .= '印';
        $charset = mb_detect_encoding($this->sealName);
        if($charset != 'UTF-8'){
            $this->sealName = mb_convert_encoding($this->sealName, 'UTF-8', 'GBK');
        }
        //相关计量
        $leng  = mb_strlen($this->sealName,'utf8'); //字符串长度
        $nums = array();
        //拆分并写入字符串
        for($i=0;$i<$leng;$i++){
            $nums[] = mb_substr($this->sealName,$i,1,'utf8');
        }
        imagettftext($this->img,35, 0, 60,50, $this->backGround, $this->font, $nums[0]);
        imagettftext($this->img,35, 0, 60,105, $this->backGround, $this->font, $nums[1]);
        if($leng==3){
            imagettftext($this->img,35, 0, 10,77.5, $this->backGround, $this->font, $nums[2]);
        }else{
            imagettftext($this->img,35, 0, 10,50, $this->backGround, $this->font, $nums[2]);
            imagettftext($this->img,35, 0, 10,105, $this->backGround, $this->font, $nums[3]);
        }

    }

  
  //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);
  }
    //画下面的数字
    private function drawNum(){
        //编码处理
        $charset = mb_detect_encoding($this->sealNum);
        if($charset != 'UTF-8'){
            $this->sealNum = mb_convert_encoding($this->sealNum, 'UTF-8', 'GBK');
        }
        //相关计量
        $this->numRadius = $this->sealRadius - $this->rimWidth - 5; //数字半径
        $leng  = mb_strlen($this->sealNum,'utf8'); //字符串长度
//        if($leng > $this->strMaxLeng) $leng = $this->strMaxLeng;
        $avgAngle  = 80 / 9;  //平均字符倾斜度

        //拆分并写入字符串
        $nums = array(); //字符数组
        for($i=0;$i<$leng;$i++){
            $nums[] = mb_substr($this->sealNum,$i,1,'utf8');
            $r =95 + $this->charAngle + $avgAngle*($i - $leng/2);   //坐标角度
            $R = 720 - $this->charAngle + $avgAngle*($leng-2*$i-1)/2 ;  //字符角度
            $x = $this->centerDot['x'] + $this->numRadius * cos(deg2rad($r)); //字符的x坐标
            $y = $this->centerDot['y'] + $this->numRadius * sin(deg2rad($r)); //字符的y坐标
            imagettftext($this->img,10, $R, $x, $y, $this->backGround, $this->font, $nums[$i]);
        }
    }

    //画中间章的名字
    private function drawName(){
        //编码处理
        $charset = mb_detect_encoding($this->sealName);
        if($charset != 'UTF-8'){
            $this->sealName = mb_convert_encoding($this->sealName, 'UTF-8', 'GBK');
        }
        //相关计量
        $leng  = mb_strlen($this->sealName,'utf8'); //字符串长度

        //拆分并写入字符串
        $nums = array(); //字符数组
        for($i=0;$i<$leng;$i++){
            $nums[] = mb_substr($this->sealName,$i,1,'utf8');
//            $r =99 + $this->charAngle + $avgAngle*($i - $leng/2);   //坐标角度
//            $R = 720 - $this->charAngle + $avgAngle*($leng-2*$i-1)/2 ;  //字符角度
            $x = 44+$i*22; //字符的x坐标
            $y = $this->yheight; //字符的y坐标
            imagettftext($this->img,18, 0, $x, $y, $this->backGround, $this->font, $nums[$i]);
        }
    }

    //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-5; //字符串半径
    $leng  = mb_strlen($this->sealString,'utf8'); //字符串长度
    if($leng > $this->strMaxLeng) $leng = $this->strMaxLeng;
    $avgAngle  = 270 / ($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);  //坐标角度
      $R = 720 - $this->charAngle + $avgAngle*($leng-2*$i-1)/2 ;  //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]);
    }
  }


    //画椭圆字符串
    private function drawString1(){
        //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
    $charRadiusy = $this->centerDot['y'] - $this->rimWidth - $this->fontSize-2; //字符串y
    $charRadiusx = $this->centerDot['x'] - $this->rimWidth - $this->fontSize-2; //字符串x
        $leng  = mb_strlen($this->sealString,'utf8'); //字符串长度
        if($leng > $this->strMaxLeng) $leng = $this->strMaxLeng;
        $avgAngle  = 270 / $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);  //坐标角度
            $R = 720- $this->charAngle + $avgAngle*($leng-2*$i-1)/2;  //字符角度
            $x = $this->centerDot['x'] + $charRadiusx * cos(deg2rad($r))+2; //字符的x坐标
            $y = $this->centerDot['y'] + $charRadiusy * sin(deg2rad($r)); //字符的y坐标
            imagettftext($this->img, $this->fontSize, $R, $x, $y, $this->backGround, $this->font,$words[$i]);
        }
    }

    //画下面的数字
    private function drawNum1(){
        //编码处理
        $charset = mb_detect_encoding($this->sealNum);
        if($charset != 'UTF-8'){
            $this->sealNum = mb_convert_encoding($this->sealNum, 'UTF-8', 'GBK');
        }
        //相关计量
        $charRadiusy = $this->centerDot['y'] - $this->rimWidth - $this->fontSize+15; //字符串y
        $charRadiusx = $this->centerDot['x'] - $this->rimWidth - $this->fontSize-2; //字符串x
        $leng  = mb_strlen($this->sealNum,'utf8'); //字符串长度
//        if($leng > $this->strMaxLeng) $leng = $this->strMaxLeng;
        $avgAngle  = 80 / 9;  //平均字符倾斜度

        //拆分并写入字符串
        $nums = array(); //字符数组
        for($i=0;$i<$leng;$i++){
            $nums[] = mb_substr($this->sealNum,$i,1,'utf8');
            $r =97 + $this->charAngle + $avgAngle*($i - $leng/2);   //坐标角度
            $R = 720 - $this->charAngle + $avgAngle*($leng-2*$i-1)/2 ;  //字符角度
            $x = $this->centerDot['x'] + $charRadiusx * cos(deg2rad($r)); //字符的x坐标
            $y = $this->centerDot['y'] + $charRadiusy * sin(deg2rad($r)); //字符的y坐标
            imagettftext($this->img,10, $R, $x, $y, $this->backGround, $this->font, $nums[$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 saveImg($path,$name=''){
    $this->sealName = $name;
    $this->createImg();
    $this->drawRim();
    $this->drawInnerCircle();
    $this->drawName();
    $this->drawNum();
    $this->drawString();
    $this->drawStart();
    imagepng($this->img,$path);
    imagedestroy($this->img);
}
//生成椭圆
    public function saveEll($path,$name=''){
        $this->sealName = $name;
        $this->width  = 200;
        $this->height = 147;
        $this->yheight = 110;
        $this->startRadius = 20;
        $this->fontSize = 14;
        $this->sealRadius = 75;
        $this->points = array();
        $this->centerDot  = array('x'=>$this->width/2, 'y'=>$this->height/2);
        $this->createImg();
        $this->drawRim();
        $this->drawInnerCircle();
        $this->drawName();
        $this->drawNum1();
        $this->drawString1();
        $this->drawStart();
        imagepng($this->img,$path);
        imagedestroy($this->img);
//        $this->outPut();
    }
    //生成圆角正方形
    public function saveSquare($path,$name=''){
        $this->sealName = $name;
//        $this->width  = 120;
//        $this->height = 120;
//        $this->createImg();
//        $this->drawSqu();
//        $this->drawName1();
//        $this->outPut();


        $this->width    = 120;
        $this->height   = 120;
        $this->img    = imagecreatetruecolor($this->width, $this->width);   // 创建一个正方形的图像
        $bgcolor     = imagecolorallocate($this->img, 255, 0, 0);   // 图像的背景
        imagefill($this->img, 0, 0, $bgcolor);

        // 圆角处理
        $radius  = 5;
        // lt(左上角)
        $lt_corner  = $this->get_lt_rounder_corner($radius);
        imagecopymerge($this->img, $lt_corner, 0, 0, 0, 0, $radius, $radius, 100);
        // lb(左下角)
        $lb_corner  = imagerotate($lt_corner, 90, 0);
        imagecopymerge($this->img, $lb_corner, 0, $this->height - $radius, 0, 0, $radius, $radius, 100);
        // rb(右上角)
        $rb_corner  = imagerotate($lt_corner, 180, 0);
        imagecopymerge($this->img, $rb_corner, $this->width - $radius, $this->height - $radius, 0, 0, $radius, $radius, 100);
        // rt(右下角)
        $rt_corner  = imagerotate($lt_corner, 270, 0);
        imagecopymerge($this->img, $rt_corner, $this->width - $radius, 0, 0, 0, $radius, $radius, 100);

        $img1    = imagecreatetruecolor(110, 110);   // 创建一个正方形的图像
        $bgcolor     = imagecolorallocate($img1, 255, 255, 255);   // 图像的背景
        imagefill($img1, 0, 0, $bgcolor);
        // 圆角处理
        $radius  = 5;
        // lt(左上角)
        $lt_corner  = $this->get_lt_rounder_corner($radius,255,1,0);
        imagecopymerge($img1, $lt_corner, 0, 0, 0, 0, $radius, $radius, 100);
        // lb(左下角)
        $lb_corner  = imagerotate($lt_corner, 90, 0);
        imagecopymerge($img1, $lb_corner, 0, 105, 0, 0, $radius, $radius, 100);
        // rb(右上角)
        $rb_corner  = imagerotate($lt_corner, 180, 0);
        imagecopymerge($img1, $rb_corner, 105, 105, 0, 0, $radius, $radius, 100);
        // rt(右下角)
        $rt_corner  = imagerotate($lt_corner, 270, 0);
        imagecopymerge($img1, $rt_corner,105, 0, 0, 0, $radius, $radius, 100);

        imagecopymerge($this->img, $img1, 5, 5, 0, 0, 110, 110, 100);
        $this->backGround  = imagecolorallocate($this->img,255,0,0);
        $this->drawName1();
        imagepng($this->img,$path);
        imagedestroy($this->img);
    }

    function get_lt_rounder_corner($radius,$r=255,$g=255,$b=255) {
        $img     = imagecreatetruecolor($radius, $radius);  // 创建一个正方形的图像
        $bgcolor    = imagecolorallocate($img, $r, $g, $b);   // 图像的背景
        $fgcolor    = imagecolorallocate($img, 255,0,0);
        imagefill($img, 0, 0, $bgcolor);
        // $radius,$radius：以图像的右下角开始画弧
        // $radius*2, $radius*2：已宽度、高度画弧
        // 180, 270：指定了角度的起始和结束点
        // fgcolor：指定颜色
        imagefilledarc($img, $radius, $radius, $radius*2, $radius*2, 180, 270, $fgcolor, IMG_ARC_PIE);
        // 将弧角图片的颜色设置为透明
        imagecolortransparent($img, $fgcolor);
        // 变换角度
        // $img = imagerotate($img, 90, 0);
        // $img = imagerotate($img, 180, 0);
        // $img = imagerotate($img, 270, 0);
        // header('Content-Type: image/png');
        // imagepng($img);
        return $img;
    }
    //对外生成
  public function doImg($name=''){
      $this->sealName = $name;
    $this->createImg();
    $this->drawRim();
    $this->drawInnerCircle();
      $this->drawName();
      $this->drawNum();
      $this->drawString();
    $this->drawStart();
    $this->outPut();
  }
}
$name = "北京市阿斯达四大有限责任公司";
$seal = new circleSeal($name);
$sealname = '';
for($i=1;$i<4;$i++){
    if($i==2) {
        $sealname = '财务专用章';
    }elseif($i==3){
        $sealname = '合同专用章';
    }
    $seal->saveImg("$i.ccc.jpg",$sealname);
}
$seal->saveEll("./4c.jpg",'发票专用章');
$seal->saveSquare("./5c.jpg",'王丽');

simkai.ttf 需要从网上下载一下