//绘图技术 基本步骤 前提:在php.ini文件中启用gd库 - //创建画布 默认背景是黑色的
- $img=imagecreatetruecolor(400,300);
- //绘制各种图形
- //创建一个颜色
- $background = imagecolorallocate($img, 255, 0, 0);
- //画圆
- //imageellipse($img,30,30,50,50,$background);
- //椭圆
- //imageellipse($img,30,30,50,30,$background);
- //画直线
- //imageline($img,0,0,400,300,$background);
- //画矩形
- //imagerectangle ($img, 50 , 20 , 100 , 40 , $background);
- //填充矩形
- //imagefilledrectangle ($img, 50 , 20 , 100 , 40 , $background);
- //画弧线
- //imagearc($img, 100, 100, 150, 150, 180, 270, $background);
- //画扇型 IMG_ARC_CHORD直线连接了起始和结束点 IMG_ARC_PIE
- //imagefilledarc($img, 100, 100, 150, 150, 180, 270, $background,IMG_ARC_PIE);
//拷贝图片到画布 - /*$scrImg=imagecreatefromgif('http://www.baidu.com/img/shouye_b5486898c692066bd2cbaeda86d74448.gif');
- $scrImgInfo=getimagesize('http://www.baidu.com/img/shouye_b5486898c692066bd2cbaeda86d74448.gif');
- imagecopy ($img,$scrImg,10,10,0,0,$scrImgInfo[0],$scrImgInfo[1]);
- */
- //imagecopy ($img,$scrImg,10,10,0,0,270,129);
//写字 - //imagestring ($img , 5 , 20 , 20 , "hello,world", $background );
- //写中文
- $str="PHP绘画技术";
- imagettftext ($img , 30 , 0 , 50 ,50, $background , "MSYHBD.TTF" , $str);
- //输出图像到网页(或者另存为)
- header("content-type: image/png");
- imagepng($img);
- //销毁该图片(释放内存)
- imagedestroy($img);
- ?>
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