php - 根据高度保持纵横比

Question

这是我遇到的问题。我想保持照片的纵横比并将其放入风景 div 中。问题是我想在高度上调整图片并在宽度上进行裁剪。这是我用来适应图片的脚本，但它适合宽度而不是高度。

<script>
$(document).ready(function() {
    $('.story-small img').each(function() {
        var maxWidth = 550; // Max width for the image
        var maxHeight = 413;    // Max height for the image
        var ratio = 0;  // Used for aspect ratio
        var width = $(this).width();    // Current image width
        var height = $(this).height();  // Current image height

        // Check if the current width is larger than the max
        if(width > maxWidth){
            ratio = maxWidth / width;   // get ratio for scaling image
            $(this).css("width", maxWidth); // Set new width
            $(this).css("height", height * ratio);  // Scale height based on ratio
            height = height * ratio;    // Reset height to match scaled image
            width = width * ratio;    // Reset width to match scaled image
        }

        // Check if current height is larger than max
        if(height > maxHeight){
            ratio = maxHeight / height; // get ratio for scaling image
            $(this).css("height", maxHeight);   // Set new height
            $(this).css("width", width * ratio);    // Scale width based on ratio
            width = width * ratio;    // Reset width to match scaled image
        }
    });
});
</script>

这是一个例子:Link

所以实际上第二张图片很好，因为它适合高度，这就是我想要实现的风景图片，适合高度裁剪宽度。提前致谢。

Answer 1

试试这个:

fiddle

CSS:

img{
max-width: 550px;
max-height:440px;
}

HTML:

<img src="http://websoftit.ro/dragdrop/emma-watson-wallpaper-1920x1200.jpg">