当悬停图像 Sample Image
时，如何使这样的变焦效果答案 0 :(得分：2)
$(document).ready(function(){
var native_width = 0;
var native_height = 0;
//Now the mousemove function
$(".magnify").mousemove(function(e){
//When the user hovers on the image, the script will first calculate
//the native dimensions if they don't exist. Only after the native dimensions
//are available, the script will show the zoomed version.
if(!native_width && !native_height)
{
//This will create a new image object with the same image as that in .small
//We cannot directly get the dimensions from .small because of the
//width specified to 200px in the html. To get the actual dimensions we have
//created this image object.
var image_object = new Image();
image_object.src = $(".small").attr("src");
//This code is wrapped in the .load function which is important.
//width and height of the object would return 0 if accessed before
//the image gets loaded.
native_width = image_object.width;
native_height = image_object.height;
}
else
{
//x/y coordinates of the mouse
//This is the position of .magnify with respect to the document.
var magnify_offset = $(this).offset();
//We will deduct the positions of .magnify from the mouse positions with
//respect to the document to get the mouse positions with respect to the
//container(.magnify)
var mx = e.pageX - magnify_offset.left;
var my = e.pageY - magnify_offset.top;
//Finally the code to fade out the glass if the mouse is outside the container
if(mx < $(this).width() && my < $(this).height() && mx > 0 && my > 0)
{
$(".large").fadeIn(100);
}
else
{
$(".large").fadeOut(100);
}
if($(".large").is(":visible"))
{
//The background position of .large will be changed according to the position
//of the mouse over the .small image. So we will get the ratio of the pixel
//under the mouse pointer with respect to the image and use that to position the
//large image inside the magnifying glass
var rx = Math.round(mx/$(".small").width()*native_width - $(".large").width()/2)*-1;
var ry = Math.round(my/$(".small").height()*native_height - $(".large").height()/2)*-1;
var bgp = rx + "px " + ry + "px";
//Time to move the magnifying glass with the mouse
var px = mx - $(".large").width()/2;
var py = my - $(".large").height()/2;
//Now the glass moves with the mouse
//The logic is to deduct half of the glass's width and height from the
//mouse coordinates to place it with its center at the mouse coordinates
//If you hover on the image now, you should see the magnifying glass in action
$(".large").css({left: px, top: py, backgroundPosition: bgp});
}
}
})
})/*Some CSS*/
* {margin: 0; padding: 0;}
.magnify {width: 200px; margin: 50px auto; position: relative;}
/*Lets create the magnifying glass*/
.large {
width: 175px; height: 175px;
position: absolute;
border-radius: 100%;
/*Multiple box shadows to achieve the glass effect*/
box-shadow: 0 0 0 7px rgba(255, 255, 255, 0.85),
0 0 7px 7px rgba(0, 0, 0, 0.25),
inset 0 0 40px 2px rgba(0, 0, 0, 0.25);
/*Lets load up the large image first*/
background: url('http://thecodeplayer.com/uploads/media/iphone.jpg') no-repeat;
/*hide the glass by default*/
display: none;
}
/*To solve overlap bug at the edges during magnification*/
.small { display: block; }<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<!-- Lets make a simple image magnifier -->
<div class="magnify">
<!-- This is the magnifying glass which will contain the original/large version -->
<div class="large"></div>
<!-- This is the small image -->
<img class="small" src="http://thecodeplayer.com/uploads/media/iphone.jpg" width="200"/>
</div>
<!-- Lets load up prefixfree to handle CSS3 vendor prefixes -->
<script src="http://thecodeplayer.com/uploads/js/prefixfree.js" type="text/javascript"></script>
<!-- You can download it from http://leaverou.github.com/prefixfree/ -->
<!-- Time for jquery action -->
<script src="http://thecodeplayer.com/uploads/js/jquery-1.7.1.min.js" type="text/javascript"></script>
答案 1 :(得分：0)
试试这个
(function ($) {
$(document).ready(function() {
$('.xzoom, .xzoom-gallery').xzoom({zoomWidth: 400, title: true, tint: '#333', Xoffset: 15});
$('.xzoom2, .xzoom-gallery2').xzoom({position: '#xzoom2-id', tint: '#ffa200'});
$('.xzoom3, .xzoom-gallery3').xzoom({position: 'lens', lensShape: 'circle', sourceClass: 'xzoom-hidden'});
$('.xzoom4, .xzoom-gallery4').xzoom({tint: '#006699', Xoffset: 15});
$('.xzoom5, .xzoom-gallery5').xzoom({tint: '#006699', Xoffset: 15});
//Integration with hammer.js
var isTouchSupported = 'ontouchstart' in window;
if (isTouchSupported) {
//If touch device
$('.xzoom, .xzoom2, .xzoom3, .xzoom4, .xzoom5').each(function(){
var xzoom = $(this).data('xzoom');
xzoom.eventunbind();
});
$('.xzoom, .xzoom2, .xzoom3').each(function() {
var xzoom = $(this).data('xzoom');
$(this).hammer().on("tap", function(event) {
event.pageX = event.gesture.center.pageX;
event.pageY = event.gesture.center.pageY;
var s = 1, ls;
xzoom.eventmove = function(element) {
element.hammer().on('drag', function(event) {
event.pageX = event.gesture.center.pageX;
event.pageY = event.gesture.center.pageY;
xzoom.movezoom(event);
event.gesture.preventDefault();
});
}
xzoom.eventleave = function(element) {
element.hammer().on('tap', function(event) {
xzoom.closezoom();
});
}
xzoom.openzoom(event);
});
});
$('.xzoom4').each(function() {
var xzoom = $(this).data('xzoom');
$(this).hammer().on("tap", function(event) {
event.pageX = event.gesture.center.pageX;
event.pageY = event.gesture.center.pageY;
var s = 1, ls;
xzoom.eventmove = function(element) {
element.hammer().on('drag', function(event) {
event.pageX = event.gesture.center.pageX;
event.pageY = event.gesture.center.pageY;
xzoom.movezoom(event);
event.gesture.preventDefault();
});
}
var counter = 0;
xzoom.eventclick = function(element) {
element.hammer().on('tap', function() {
counter++;
if (counter == 1) setTimeout(openfancy,300);
event.gesture.preventDefault();
});
}
function openfancy() {
if (counter == 2) {
xzoom.closezoom();
$.fancybox.open(xzoom.gallery().cgallery);
} else {
xzoom.closezoom();
}
counter = 0;
}
xzoom.openzoom(event);
});
});
$('.xzoom5').each(function() {
var xzoom = $(this).data('xzoom');
$(this).hammer().on("tap", function(event) {
event.pageX = event.gesture.center.pageX;
event.pageY = event.gesture.center.pageY;
var s = 1, ls;
xzoom.eventmove = function(element) {
element.hammer().on('drag', function(event) {
event.pageX = event.gesture.center.pageX;
event.pageY = event.gesture.center.pageY;
xzoom.movezoom(event);
event.gesture.preventDefault();
});
}
var counter = 0;
xzoom.eventclick = function(element) {
element.hammer().on('tap', function() {
counter++;
if (counter == 1) setTimeout(openmagnific,300);
event.gesture.preventDefault();
});
}
function openmagnific() {
if (counter == 2) {
xzoom.closezoom();
var gallery = xzoom.gallery().cgallery;
var i, images = new Array();
for (i in gallery) {
images[i] = {src: gallery[i]};
}
$.magnificPopup.open({items: images, type:'image', gallery: {enabled: true}});
} else {
xzoom.closezoom();
}
counter = 0;
}
xzoom.openzoom(event);
});
});
} else {
//If not touch device
//Integration with fancybox plugin
$('#xzoom-fancy').bind('click', function(event) {
var xzoom = $(this).data('xzoom');
xzoom.closezoom();
$.fancybox.open(xzoom.gallery().cgallery, {padding: 0, helpers: {overlay: {locked: false}}});
event.preventDefault();
});
//Integration with magnific popup plugin
$('#xzoom-magnific').bind('click', function(event) {
var xzoom = $(this).data('xzoom');
xzoom.closezoom();
var gallery = xzoom.gallery().cgallery;
var i, images = new Array();
for (i in gallery) {
images[i] = {src: gallery[i]};
}
$.magnificPopup.open({items: images, type:'image', gallery: {enabled: true}});
event.preventDefault();
});
}
});
})(jQuery);<link href="https://unpkg.com/xzoom@1.0.7/dist/xzoom.css" rel="stylesheet"/>
<script src="https://code.jquery.com/jquery-2.1.1.js"></script>
<script src="https://unpkg.com/xzoom@1.0.7/dist/xzoom.min.js"></script>
<script src="https://hammerjs.github.io/dist/hammer.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/foundation/6.3.1/js/foundation.min.js"></script>
<body>
<div class="container">
<!-- default start -->
<section id="default" class="padding-top0">
<div class="row">
<div class="large-12 column"><h3>Product Zooming</h3></div>
<hr>
<div class="large-5 column">
<div class="xzoom-container">
<img class="xzoom" id="xzoom-default" src="http://www.jqueryscript.net/demo/Feature-rich-Product-Gallery-With-Image-Zoom-xZoom/images/gallery/preview/01_b_car.jpg" xoriginal="http://www.jqueryscript.net/demo/Feature-rich-Product-Gallery-With-Image-Zoom-xZoom/images/gallery/original/01_b_car.jpg" />
<div class="xzoom-thumbs">
<a href="http://www.jqueryscript.net/demo/Feature-rich-Product-Gallery-With-Image-Zoom-xZoom/images/gallery/original/01_b_car.jpg"><img class="xzoom-gallery" width="80" src="http://www.jqueryscript.net/demo/Feature-rich-Product-Gallery-With-Image-Zoom-xZoom/images/gallery/thumbs/01_b_car.jpg" xpreview="http://www.jqueryscript.net/demo/Feature-rich-Product-Gallery-With-Image-Zoom-xZoom/images/gallery/preview/01_b_car.jpg" title="The description goes here"></a>
<a href="http://www.jqueryscript.net/demo/Feature-rich-Product-Gallery-With-Image-Zoom-xZoom/images/gallery/original/02_o_car.jpg"><img class="xzoom-gallery" width="80" src="http://www.jqueryscript.net/demo/Feature-rich-Product-Gallery-With-Image-Zoom-xZoom/images/gallery/preview/02_o_car.jpg" title="The description goes here"></a>
<a href="http://www.jqueryscript.net/demo/Feature-rich-Product-Gallery-With-Image-Zoom-xZoom/images/gallery/original/03_r_car.jpg"><img class="xzoom-gallery" width="80" src="http://www.jqueryscript.net/demo/Feature-rich-Product-Gallery-With-Image-Zoom-xZoom/images/gallery/preview/03_r_car.jpg" title="The description goes here"></a>
<a href="http://www.jqueryscript.net/demo/Feature-rich-Product-Gallery-With-Image-Zoom-xZoom/images/gallery/original/04_g_car.jpg"><img class="xzoom-gallery" width="80" src="http://www.jqueryscript.net/demo/Feature-rich-Product-Gallery-With-Image-Zoom-xZoom/images/gallery/preview/04_g_car.jpg" title="The description goes here"></a>
</div>
</div>
</div>
<div class="large-7 column"></div>
</div>
</section>
<!-- default end -->
</div>
</body>