尝试使用此选项最终没有在图像上进行裁剪选择，裁剪按钮不是红色且可点击。
我使用与codpen中相同的代码，但它不能在我的网站上运行。 Codepen可能会在幕后加载一些我不是吗？
它让我
笔http://codepen.io/anon/pen/ZbmOxp
我的：http://www.techagesite.com/aaa.htm
的CSS：
* {
box-sizing: border-box;
}
html,
body {
height: 100%;
}
body {
padding: 20px;
text-align: center;
color: #111;
background-image: radial-gradient(ellipse farthest-corner at center, #7abcff 0%,#4096ee 100%);
}
img {
max-width: 100%;
}
section {
height: 100%;
}
.hidden {
display: none;
}
.drop {
position: relative;
width: 100%;
height: 100%;
font-family: Lobster, Arial, serif;
font-size: 30px;
color: #333;
background-color: rgba(255,255,255,.2);
border: 5px dashed rgba(51,51,51,.4);
cursor: pointer;
transition-properties: border;
transition-duration: 0.2s;
&.dragging,
&:hover {
border-color: rgba(51,51,51,.8);
}
p {
position: absolute;
top: 50%;
width: 100%;
margin-top: -19px;
margin-bottom: 0;
text-align: center;
}
}
.image-resize {
max-width: 800px;
margin: auto;
}
.btn {
margin-top: 20px;
padding: 8px 25px;
font-family: "Ubuntu";
font-size: 16px;
color: #fff;
background-image: linear-gradient(to bottom, #c92437 0%, darken(#c92437, 10%) 100%);
border: 0;
border-radius: 5px;
box-shadow: 1px 1px 2px rgba(0,0,0,.3);
.fa:first-child {
margin-right: 5px;
}
}
.thumbnail {
display: inline-block;
margin: auto;
padding: 5px;
background-color: rgba(255,255,255,.4);
border-radius: 5px;
img {
display: block;
border-radius: 5px;
}
}
HTML
<!-- Upload image -->
<section id="sectionDragAndDrop">
<div class="drop" id="drop">
<p>Drag & drop or click here to upload an image.</p>
</div>
<input class="file-upload hidden" id="fileUpload" type="file">
</section>
<!-- Resize image -->
<section class="hidden" id="sectionResize">
<div class="image-resize" id="imageResize"></div>
<button class="btn" id="crop"><span class='fa fa-crop'></span> Crop</button>
</section>
<!-- Insert thumbnail -->
<section class="hidden" id="sectionThumbnail">
<div class="thumbnail" id="thumbnail"></div>
</section>
的js
<script src="https://code.jquery.com/jquery-2.1.3.min.js"></script>
$('#drop').on('click', function() {
$('#fileUpload').trigger('click');
});
$('#fileUpload').on('change', function(e) {
addImage(e.target);
});
$("#drop").on("dragover", function(e) {
e.preventDefault();
e.stopPropagation();
$(this).addClass('dragging');
});
$("#drop").on("dragleave", function(e) {
$(this).removeClass('dragging');
});
$("#drop").on("drop", function(e) {
e.preventDefault();
e.stopPropagation();
var data = e.dataTransfer || e.originalEvent.dataTransfer;
addImage(data);
});
function addImage(data) {
var file = data.files[0];
if (file.type.indexOf('image') === -1) {
alert('Sorry, the file you uploaded doesn\'t appear to be an image.');
return false;
}
var reader = new FileReader();
reader.onload = function(event) {
var img = new Image();
img.onload = function() {
if (img.width < 200 || img.height < 400) {
alert('Sorry, the image you uploaded doesn\'t appear to be large enough.');
return false;
}
cropImage(img);
}
img.src = event.target.result;
}
reader.readAsDataURL(file);
}
function cropImage(originalImage) {
$(originalImage).attr('id', 'fullImage');
$('#imageResize').html(originalImage);
$('#sectionDragAndDrop').addClass('hidden');
$('#sectionResize').removeClass('hidden');
var newImage = new imageCrop('#fullImage', 200, 400);
$('#crop').on('click', function() {
var results = newImage.crop();
$('#thumbnail').html(results.img);
$('#sectionResize').addClass('hidden');
$('#sectionThumbnail').removeClass('hidden');
});
}
答案 0 :(得分：2)
将插件代码添加到脚本顶部。
<script src="https://code.jquery.com/jquery-2.1.3.min.js"></script>
<script>
/* This is imageCrop plugin */
var imageCrop=function(e,t,i){function o(){H.onload=function(){return H.width<t||H.height<i?(console.log("Image Crop error: The required dimensions are larger than the target image."),!1):($(e).wrap('<div class="ic-container"></div>').before(' <div class="ic-overlay-n" id="icOverlayN"></div> <div class="ic-overlay-e" id="icOverlayE"></div> <div class="ic-overlay-s" id="icOverlayS"></div> <div class="ic-overlay-w" id="icOverlayW"></div> <div class="ic-crop-marker" id="icCropMarker"> <div class="ic-resize-handle-nw" id="icResizeHandleNW"></div> <div class="ic-resize-handle-ne" id="icResizeHandleNE"></div> <div class="ic-resize-handle-sw" id="icResizeHandleSW"></div> <div class="ic-resize-handle-se" id="icResizeHandleSE"></div> <div class="ic-move-handle" id="icMoveHandle"></div> </div> '),l=$("#icCropMarker"),u=$(e),f=H.width/u.width(),g=H.width/H.height,v=t/i,p=t/f,w=i/f,z(),s(),l.on("mousedown touchstart",n),l.on("mousedown touchstart","#icMoveHandle",d),void R.resolve())},H.src=e.src}function n(e){e.preventDefault(),e.stopPropagation(),C(e),m.on("mousemove touchmove",c),m.on("mouseup touchend",r)}function r(e){e.preventDefault(),m.off("mouseup touchend",r),m.off("mousemove touchmove",c)}function c(e){var o,n,r,c,d={},h=l.outerWidth(),a=l.outerHeight(),f=l.position();d.x=(e.clientX||e.pageX||e.originalEvent.touches[0].clientX)+$(window).scrollLeft(),d.y=(e.clientY||e.pageY||e.originalEvent.touches[0].clientY)+$(window).scrollTop();var g=!1,v=!1,m=!1,H=!1;$(y.evnt.target).is("#icResizeHandleSE")?g=!0:$(y.evnt.target).is("#icResizeHandleSW")?v=!0:$(y.evnt.target).is("#icResizeHandleNW")?m=!0:$(y.evnt.target).is("#icResizeHandleNE")&&(H=!0),g?(o=d.x-y.containerLeft-u.offset().left,n=o/t*i,r=y.containerLeft,c=y.containerTop):v?(o=y.containerWidth-(d.x-y.containerLeft-u.offset().left),n=o/t*i,r=d.x-u.offset().left,c=y.containerTop):m?(o=y.containerWidth-(d.x-y.containerLeft-u.offset().left),n=o/t*i,r=d.x-u.offset().left,c=f.top+a-n):H&&(o=d.x-y.containerLeft-u.offset().left,n=o/t*i,r=y.containerLeft,c=f.top+a-n),c>=0&&r>=0&&Math.round(c+n)<=Math.round(u.height())&&Math.round(r+o)<=Math.round(u.width())&&(W=!0),W&&(0>c?(n=a+f.top,o=n/i*t,c=0,m&&(r=f.left-(o-h)),W=!1):0>r?(o=h+f.left,n=o/t*i,r=0,g&&(c=f.top-(n-a)),W=!1):Math.round(c+n)>Math.round(u.height())?(n=u.height()-c,o=n/i*t,v&&(r=f.left-(o-h)),W=!1):Math.round(r+o)>Math.round(u.width())&&(o=u.width()-r,n=o/t*i,H&&(c=f.top-(n-a)),W=!1),o>p&&n>w?(l.outerWidth(o).outerHeight(n),l.css({left:r,top:c})):((v||m)&&(r-=p-o),(m||H)&&(c-=w-n),l.outerWidth(p).outerHeight(w),l.css({left:r,top:c}))),s()}function d(e){e.preventDefault(),e.stopPropagation(),C(e),m.on("mousemove touchmove",a),m.on("mouseup touchend",h)}function h(e){e.preventDefault(),m.off("mouseup touchend",h),m.off("mousemove touchmove",a)}function a(e){var t,i,o,n={};e.preventDefault(),e.stopPropagation(),o=e.originalEvent.touches,n.x=(e.clientX||e.pageX||o[0].clientX)+$(window).scrollLeft(),n.y=(e.clientY||e.pageY||o[0].clientY)+$(window).scrollTop(),t=n.y-(y.mouseY-y.containerTop),i=n.x-(y.mouseX-y.containerLeft),0>t&&(t=0),t+l.outerHeight()>u.height()&&(t=u.height()-l[0].getBoundingClientRect().height),0>i&&(i=0),i+l.outerWidth()>u.width()&&(i=u.width()-l[0].getBoundingClientRect().width),l.css({top:t,left:i}),s()}function s(){var e=u[0].getBoundingClientRect().width,t=(u[0].getBoundingClientRect().height,l.position().top),i=l.position().left,o=l[0].getBoundingClientRect().width,n=l[0].getBoundingClientRect().height;parseFloat(l.css("border-top-width"));$("#icOverlayN").css({right:e-i-o,height:t,left:i}),$("#icOverlayE").css({left:i+o}),$("#icOverlayS").css({right:e-i-o,top:t+n,left:i}),$("#icOverlayW").css({width:i})}var l,u,f,g,v,p,w,m=$(document),H=new Image,e=$(e).get(0),y={},W=!0,M=!1,R=new $.Deferred;H.crossOrigin="Anonymous",document.addEventListener("keydown",function(e){var t,i,o,t=l.position().top,i=l.position().left;o=e.shiftKey?10:1,37===e.keyCode?i-=o:38===e.keyCode?t-=o:39===e.keyCode?i+=o:40===e.keyCode&&(t+=o),0>t&&(t=0),t+l.outerHeight()>u.height()&&(t=u.height()-l[0].getBoundingClientRect().width),0>i&&(i=0),i+l.outerWidth()>u.width()&&(i=u.width()-l[0].getBoundingClientRect().width),M&&(l.css({top:t,left:i}),s())}),m.click(function(e){M=$(e.target).closest(".ic-container").length?!0:!1});var C=function(e){y.containerWidth=l.outerWidth(),y.containerHeight=l.outerHeight(),y.containerLeft=l.position().left,y.containerTop=l.position().top,y.mouseX=(e.clientX||e.pageX||e.originalEvent.touches[0].clientX)+$(window).scrollLeft(),y.mouseY=(e.clientY||e.pageY||e.originalEvent.touches[0].clientY)+$(window).scrollTop(),y.evnt=e},z=function(){v>g?(l.outerWidth(u.width()),l.outerHeight(l.outerWidth()/t*i),l.css({top:(u.height()-l.height())/2+"px",left:0})):(l.outerHeight(u.height()),l.outerWidth(l.outerHeight()/i*t),l.css({left:(u.width()-l.width())/2+"px",top:0}))};this.crop=function(){var e,o=new Image,n=H.width/u.width(),r=Math.round(l.position().left*n),c=Math.round(l.position().top*n),d=Math.round(l.outerWidth()*n),h=Math.round(l.outerHeight()*n);e=document.createElement("canvas"),e.width=t,e.height=i,e.getContext("2d").drawImage(H,r,c,d,h,0,0,t,i),o.src=e.toDataURL();var a={img:o,left:r,top:c,width:d,height:h,requiredWidth:t,requiredHeight:i};return a},this.position=function(e,t,i,o){$.when(R).done(function(){var n=H.width/u.width();e=Math.round(e/n),t=Math.round(t/n),i=Math.round(i/n),o=Math.round(o/n),l.outerWidth(i).outerHeight(o),l.css({left:e,top:t}),s()})},this.cropReset=function(){z(),s()},$(window).resize(function(){f=H.width/u.width(),p=t/f,w=i/f,z(),s()}),o()};
$('#drop').on('click', function() {
$('#fileUpload').trigger('click');
});
$('#fileUpload').on('change', function(e) {
addImage(e.target);
});
$("#drop").on("dragover", function(e) {
e.preventDefault();
e.stopPropagation();
$(this).addClass('dragging');
});
$("#drop").on("dragleave", function(e) {
$(this).removeClass('dragging');
});
$("#drop").on("drop", function(e) {
e.preventDefault();
e.stopPropagation();
var data = e.dataTransfer || e.originalEvent.dataTransfer;
addImage(data);
});
function addImage(data) {
var file = data.files[0];
if (file.type.indexOf('image') === -1) {
alert('Sorry, the file you uploaded doesn\'t appear to be an image.');
return false;
}
var reader = new FileReader();
reader.onload = function(event) {
var img = new Image();
img.onload = function() {
if (img.width < 200 || img.height < 400) {
alert('Sorry, the image you uploaded doesn\'t appear to be large enough.');
return false;
}
cropImage(img);
}
img.src = event.target.result;
}
reader.readAsDataURL(file);
}
function cropImage(originalImage) {
$(originalImage).attr('id', 'fullImage');
$('#imageResize').html(originalImage);
$('#sectionDragAndDrop').addClass('hidden');
$('#sectionResize').removeClass('hidden');
var newImage = new imageCrop('#fullImage', 200, 400);
$('#crop').on('click', function() {
var results = newImage.crop();
$('#thumbnail').html(results.img);
$('#sectionResize').addClass('hidden');
$('#sectionThumbnail').removeClass('hidden');
});
}
</script>
答案 1 :(得分：2)
如果你在codepen中查看源代码，那么有一个脚本部分定义了imageCrop方法。你完全错过了你的代码。
要修复此问题，请将其添加到现有脚本部分的上方：
<script>
imageCrop = function(imageTarget, requiredWidth, requiredHeight) {
// Variables
var $doc = $(document),
$cropMarker,
$originalImage,
origSrc = new Image(),
imageTarget = $(imageTarget).get(0),
imageScale,
imageRatio,
cropRatio,
adjustedRequiredWidth,
adjustedRequiredHeight,
eventState = {},
allowResize = true,
keyboardMove = false,
imageLoaded = new $.Deferred();
origSrc.crossOrigin = "Anonymous";
function init() {
origSrc.onload = function() {
// Check to make sure the target image is large enough
if (origSrc.width < requiredWidth || origSrc.height < requiredHeight) {
console.log('Image Crop error: The required dimensions are larger than the target image.');
return false;
}
// And neccessary html
$(imageTarget).wrap('<div class="ic-container"></div>').before('\
<div class="ic-overlay-n" id="icOverlayN"></div>\
<div class="ic-overlay-e" id="icOverlayE"></div>\
<div class="ic-overlay-s" id="icOverlayS"></div>\
<div class="ic-overlay-w" id="icOverlayW"></div>\
<div class="ic-crop-marker" id="icCropMarker">\
<div class="ic-resize-handle-nw" id="icResizeHandleNW"></div>\
<div class="ic-resize-handle-ne" id="icResizeHandleNE"></div>\
<div class="ic-resize-handle-sw" id="icResizeHandleSW"></div>\
<div class="ic-resize-handle-se" id="icResizeHandleSE"></div>\
<div class="ic-move-handle" id="icMoveHandle"></div>\
</div>\
');
$cropMarker = $('#icCropMarker');
$originalImage = $(imageTarget);
imageScale = origSrc.width / $originalImage.width();
imageRatio = origSrc.width / origSrc.height;
cropRatio = requiredWidth / requiredHeight;
adjustedRequiredWidth = requiredWidth / imageScale;
adjustedRequiredHeight = requiredHeight / imageScale;
centerCropMarker();
repositionOverlay();
$cropMarker.on('mousedown touchstart', startResize);
$cropMarker.on('mousedown touchstart', '#icMoveHandle', startMoving);
imageLoaded.resolve();
};
origSrc.src = imageTarget.src;
};
function startResize(e) {
e.preventDefault();
e.stopPropagation();
saveEventState(e);
$doc.on('mousemove touchmove', resizing);
$doc.on('mouseup touchend', endResize);
};
function endResize(e) {
e.preventDefault();
$doc.off('mouseup touchend', endResize);
$doc.off('mousemove touchmove', resizing);
};
function resizing(e) {
var mouse = {},
width,
height,
left,
top,
originalWidth = $cropMarker.outerWidth(),
originalHeight = $cropMarker.outerHeight(),
originalOffset = $cropMarker.position();
mouse.x = (e.clientX || e.pageX || e.originalEvent.touches[0].clientX) + $(window).scrollLeft();
mouse.y = (e.clientY || e.pageY || e.originalEvent.touches[0].clientY) + $(window).scrollTop();
var SE = false,
SW = false,
NW = false,
NE = false;
if ($(eventState.evnt.target).is('#icResizeHandleSE')) {
SE = true;
} else if ($(eventState.evnt.target).is('#icResizeHandleSW')) {
SW = true;
} else if ($(eventState.evnt.target).is('#icResizeHandleNW')) {
NW = true;
} else if ($(eventState.evnt.target).is('#icResizeHandleNE')) {
NE = true;
}
if (SE) {
width = mouse.x - eventState.containerLeft - $originalImage.offset().left;
height = width / requiredWidth * requiredHeight;
left = eventState.containerLeft;
top = eventState.containerTop;
} else if (SW) {
width = eventState.containerWidth - (mouse.x - eventState.containerLeft - $originalImage.offset().left);
height = width / requiredWidth * requiredHeight;
left = mouse.x - $originalImage.offset().left;
top = eventState.containerTop;
} else if (NW) {
width = eventState.containerWidth - (mouse.x - eventState.containerLeft - $originalImage.offset().left);
height = width / requiredWidth * requiredHeight;
left = mouse.x - $originalImage.offset().left;
top = originalOffset.top + originalHeight - height;
} else if (NE) {
width = mouse.x - eventState.containerLeft - $originalImage.offset().left;
height = width / requiredWidth * requiredHeight;
left = eventState.containerLeft;
top = originalOffset.top + originalHeight - height;
}
if (
top >= 0 &&
left >= 0 &&
Math.round(top + height) <= Math.round($originalImage.height()) &&
Math.round(left + width) <= Math.round($originalImage.width())
) {
allowResize = true;
}
if (allowResize) {
// Over top boundary
if (top < 0) {
height = originalHeight + originalOffset.top;
width = height / requiredHeight * requiredWidth;
top = 0;
if (NW) {
left = originalOffset.left - (width - originalWidth);
}
allowResize = false;
}
// Over left boundary
else if (left < 0) {
width = originalWidth + originalOffset.left;
height = width / requiredWidth * requiredHeight;
left = 0;
if (SE) {
top = originalOffset.top - (height - originalHeight);
}
allowResize = false;
}
// Over bottom boundary
else if (Math.round(top + height) > Math.round($originalImage.height())) {
height = $originalImage.height() - top;
width = height / requiredHeight * requiredWidth;
if (SW) {
left = originalOffset.left - (width - originalWidth);
}
allowResize = false;
}
// Over right boundary
else if (Math.round(left + width) > Math.round($originalImage.width())) {
width = $originalImage.width() - left;
height = width / requiredWidth * requiredHeight;
if (NE) {
top = originalOffset.top - (height - originalHeight);
}
allowResize = false;
}
// Check for min width / height
if (width > adjustedRequiredWidth && height > adjustedRequiredHeight) {
$cropMarker.outerWidth(width).outerHeight(height);
$cropMarker.css({
'left': left,
'top': top
});
} else {
if (SW || NW) {
left = left - (adjustedRequiredWidth - width);
}
if (NW || NE) {
top = top - (adjustedRequiredHeight - height);
}
$cropMarker.outerWidth(adjustedRequiredWidth).outerHeight(adjustedRequiredHeight);
$cropMarker.css({
'left': left,
'top': top
});
}
}
repositionOverlay();
}
function startMoving(e) {
e.preventDefault();
e.stopPropagation();
saveEventState(e);
$doc.on('mousemove touchmove', moving);
$doc.on('mouseup touchend', endMoving);
};
function endMoving(e) {
e.preventDefault();
$doc.off('mouseup touchend', endMoving);
$doc.off('mousemove touchmove', moving);
};
function moving(e) {
var top,
left,
mouse = {},
touches;
e.preventDefault();
e.stopPropagation();
touches = e.originalEvent.touches;
mouse.x = (e.clientX || e.pageX || touches[0].clientX) + $(window).scrollLeft();
mouse.y = (e.clientY || e.pageY || touches[0].clientY) + $(window).scrollTop();
top = mouse.y - (eventState.mouseY - eventState.containerTop);
left = mouse.x - (eventState.mouseX - eventState.containerLeft);
if (top < 0) {
top = 0;
}
if (top + $cropMarker.outerHeight() > $originalImage.height()) {
top = $originalImage.height() - $cropMarker[0].getBoundingClientRect().height;
}
if (left < 0) {
left = 0;
}
if (left + $cropMarker.outerWidth() > $originalImage.width()) {
left = $originalImage.width() - $cropMarker[0].getBoundingClientRect().width;
}
$cropMarker.css({
'top': top,
'left': left
});
repositionOverlay();
};
document.addEventListener('keydown', function(e) {
var top,
left,
shiftAmount,
top = $cropMarker.position().top,
left = $cropMarker.position().left;
if (e.shiftKey) {
shiftAmount = 10;
} else {
shiftAmount = 1;
}
if (e.keyCode === 37) {
left = left - shiftAmount;
} else if (e.keyCode === 38) {
top = top - shiftAmount;
} else if (e.keyCode === 39) {
left = left + shiftAmount;
} else if (e.keyCode === 40) {
top = top + shiftAmount;
}
if (top < 0) {
top = 0;
}
if (top + $cropMarker.outerHeight() > $originalImage.height()) {
top = $originalImage.height() - $cropMarker[0].getBoundingClientRect().width;
}
if (left < 0) {
left = 0;
}
if (left + $cropMarker.outerWidth() > $originalImage.width()) {
left = $originalImage.width() - $cropMarker[0].getBoundingClientRect().width;
}
if (keyboardMove) {
$cropMarker.css({
'top': top,
'left': left
});
repositionOverlay();
}
});
$doc.click(function(e) {
if ($(e.target).closest('.ic-container').length) {
keyboardMove = true;
} else {
keyboardMove = false;
}
})
var saveEventState = function(e) {
eventState.containerWidth = $cropMarker.outerWidth();
eventState.containerHeight = $cropMarker.outerHeight();
eventState.containerLeft = $cropMarker.position().left;
eventState.containerTop = $cropMarker.position().top;
eventState.mouseX = (e.clientX || e.pageX || e.originalEvent.touches[0].clientX) + $(window).scrollLeft();
eventState.mouseY = (e.clientY || e.pageY || e.originalEvent.touches[0].clientY) + $(window).scrollTop();
eventState.evnt = e;
};
var centerCropMarker = function() {
if (cropRatio > imageRatio) {
$cropMarker.outerWidth($originalImage.width());
$cropMarker.outerHeight($cropMarker.outerWidth() / requiredWidth * requiredHeight);
$cropMarker.css({
top: ($originalImage.height() - $cropMarker.height()) / 2 + 'px',
left: 0
});
} else {
$cropMarker.outerHeight($originalImage.height());
$cropMarker.outerWidth($cropMarker.outerHeight() / requiredHeight * requiredWidth);
$cropMarker.css({
left: ($originalImage.width() - $cropMarker.width()) / 2 + 'px',
top: 0
});
}
}
function repositionOverlay() {
var imgWidth = $originalImage[0].getBoundingClientRect().width,
imgHeight = $originalImage[0].getBoundingClientRect().height,
cropTop = $cropMarker.position().top,
cropLeft = $cropMarker.position().left,
cropWidth = $cropMarker[0].getBoundingClientRect().width,
cropHeight = $cropMarker[0].getBoundingClientRect().height,
cropBorder = parseFloat($cropMarker.css('border-top-width'));
$('#icOverlayN').css({
right: imgWidth - cropLeft - cropWidth,
height: cropTop,
left: cropLeft
});
$('#icOverlayE').css({
left: cropLeft + cropWidth
});
$('#icOverlayS').css({
right: imgWidth - cropLeft - cropWidth,
top: cropTop + cropHeight,
left: cropLeft
});
$('#icOverlayW').css({
width: cropLeft
});
};
// Crop to required size
this.crop = function() {
var cropCanvas,
img = new Image(),
scale = origSrc.width / $originalImage.width(),
left = Math.round($cropMarker.position().left * scale),
top = Math.round($cropMarker.position().top * scale),
width = Math.round($cropMarker.outerWidth() * scale),
height = Math.round($cropMarker.outerHeight() * scale);
results;
cropCanvas = document.createElement('canvas');
cropCanvas.width = requiredWidth;
cropCanvas.height = requiredHeight;
cropCanvas.getContext('2d').drawImage(origSrc, left, top, width, height, 0, 0, requiredWidth, requiredHeight);
img.src = cropCanvas.toDataURL();
var results = {
img: img,
left: left,
top: top,
width: width,
height: height,
requiredWidth: requiredWidth,
requiredHeight: requiredHeight
};
return results;
}
this.position = function(left, top, width, height) {
$.when(imageLoaded).done(function() {
var scale = origSrc.width / $originalImage.width();
left = Math.round(left / scale),
top = Math.round(top / scale),
width = Math.round(width / scale),
height = Math.round(height / scale);
$cropMarker.outerWidth(width).outerHeight(height);
$cropMarker.css({
'left': left,
'top': top
});
repositionOverlay();
});
}
this.cropReset = function() {
centerCropMarker();
repositionOverlay();
}
// Viewport resize
$(window).resize(function() {
imageScale = origSrc.width / $originalImage.width();
adjustedRequiredWidth = requiredWidth / imageScale;
adjustedRequiredHeight = requiredHeight / imageScale;
centerCropMarker();
repositionOverlay();
});
init();
};
// Initiate Image Crop
if ($('#exampleImage').length) {
var exampleCrop = new imageCrop('#exampleImage', 200, 200);
}
// Crop event
$('#exampleCrop').on('click', function() {
var results = exampleCrop.crop();
$('body').html(results.img);
});
</script>
答案 2 :(得分：1)
如果您检查控制台，则可以看到错误。
ReferenceError: imageCrop is not defined
var newImage = new imageCrop('#fullImage', 200, 400);