我有风景图像,我需要旋转以将其肖像打印为A4。 但是旋转后,我在A4预览空白处显示了一半内容。旋转后如何将横向调整为纵向?
示例:https://jsfiddle.net/Lnckq5om/1/
$(document).ready(function() {
var degrees = 0;
$('.img').click(function rotateMe(e) {
degrees += 90;
//$('.img').addClass('rotated'); // for one time rotation
$('.img').css({
'transform': 'rotate(' + degrees + 'deg)',
'-ms-transform': 'rotate(' + degrees + 'deg)',
'-moz-transform': 'rotate(' + degrees + 'deg)',
'-webkit-transform': 'rotate(' + degrees + 'deg)',
'-o-transform': 'rotate(' + degrees + 'deg)'
});
})
});
.rotated {
transform: rotate(90deg);
-ms-transform: rotate(90deg);
-moz-transform: rotate(90deg);
-webkit-transform: rotate(90deg);
-o-transform: rotate(90deg);
}
.img {
transition: all 0.5s ease;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<img class="img" src="http://projectpuffin.audubon.org/sites/g/files/amh646/f/styles/hero_mobile/public/atpu-scholtz.jpg" />
答案 0 :(得分:0)
您可以尝试将其放入容器中
<div style="overflow:hidden">
<img class="img" src="iamge.jpg" />
</div>
或使用画布裁剪图像
function crop(filepath){
const img = new Image();
img.src = filepath
img.onload = () => {
const Canvas = document.createElement('canvas')
let CanvasContext = Canvas.getContext('2d')
Canvas.width = 250; //<--- limit in width
Canvas.height = 250; //<-- limit in height
CanvasContext.drawImage(img,0,0,250,250,0,0,250,250)
Canvas.remove()
return Canvas.toDataURL('image/jpeg', 1)
}
}