Question

我正在编写一个脚本，动态地将边缘舍入到图像然后将其裁剪为特定大小。目前脚本将圆形边缘广告到图片但我无法得到它所以原始图像被调整大小以适应最终输出图像的尺寸（140px x 120px）问题是原始上传图像取决于它的原始尺寸会改变最终PNG中的尺寸

{   
 $image_file = $_FILES['image']['tmp_name'];

    $corner_radius = isset($_GET['radius']) ? $_GET['radius'] : 20; // The default corner radius is set to 20px
    $topleft = (isset($_GET['topleft']) and $_GET['topleft'] == "no") ? false : true; // Top-left rounded corner is shown by default
    $bottomleft = (isset($_GET['bottomleft']) and $_GET['bottomleft'] == "no") ? false : true; // Bottom-left rounded corner is shown by default
    $bottomright = (isset($_GET['bottomright']) and $_GET['bottomright'] == "no") ? false : true; // Bottom-right rounded corner is shown by default
    $topright = (isset($_GET['topright']) and $_GET['topright'] == "no") ? false : true; // Top-right rounded corner is shown by default
    $imagetype=$_FILES['image']['type'];

    $endsize=$corner_radius;
    $startsize=$endsize*3-1;
    $arcsize=$startsize*2+1;

    if (($imagetype=='image/jpeg') or ($imagetype=='jpg')) {
    $image = imagecreatefromjpeg($image_file);
    } else {
    if (($imagetype=='GIF') or ($imagetype=='gif')) {
    $image = imagecreatefromgif($image_file);
    } else {
    $image = imagecreatefrompng($image_file);
    }
    }

    $forecolor ='#ffffff';
    $size = getimagesize($image_file);
    // Top-left corner
    $background = imagecreatetruecolor($size[0],$size[1]);
    imagecopymerge($background, $image, 0, 0, 0, 0, $size[0], $size[1], 100);
    $startx=$size[0]*2-1;
    $starty=$size[1]*2-1;
    $im_temp = imagecreatetruecolor($startx,$starty);
    imagecopyresampled($im_temp, $background, 0, 0, 0, 0, $startx, $starty, $size[0], $size[1]);
    $bg = imagecolorallocate($im_temp, 255,255,255);
    $fg = imagecolorallocate($im_temp,  255,255,255);

    if ($topleft == true) {
    if(!imagearc($im_temp, $startsize, $startsize, $arcsize, $arcsize, 180,270,$bg))echo "nope";
    imagefilltoborder($im_temp,0,0,$bg,$bg);
    }
    // Bottom-left corner

    // Top-right corner
    if ($topright == true) {
    imagearc($im_temp, $startx-$startsize, $startsize,$arcsize, $arcsize, 270,360,$bg);
    imagefilltoborder($im_temp,$startx,0,$bg,$bg);
    }


    $image = imagecreatetruecolor(140,120);
    imagecopyresampled($image, $im_temp, 0, 0, 0, 0, $size[0],$size[1],$starty+1310,$startx+1500);


    // Output final image


    if(!imagepng($image,'hello.png')) echo "boo";
    if(!imagedestroy($image)) echo "2";
    if(!imagedestroy($background)) echo "3";
    if(!imagedestroy($im_temp)) echo "4";

    }

编辑：

我的问题是如何重新设置原始图像以使其适合使用圆边处理的140 x 120图像？

Answer 1

这是一个PHP函数的链接，它将任何图像调整为任意大小，使用crop-to-fit或letterboxing来保持宽高比。它有一个非常彻底的解释。但是，您需要在调整大小后添加圆角边缘。

http://www.spotlesswebdesign.com/blog.php?id=1

PHP图像动态调整大小和圆角图像角

1 个答案: