求解.NET高手，图片局部放大有关问题
日期：2014-05-18 浏览次数：20472 次
求解.NET高手，图片局部放大问题
[code=HTML][/code]
<html>
<head>
<title>JS+CSS实现图片放大预览效果（js图片放大预览鼠标滑过的任意位置）_365CSS.CN </title>
<script language="JavaScript">
<!--
var srcX = 900; //原图大小,可以任意设置
var srcY = 900;
var bigX = 350; //预览窗大小,可以任意设置
var bigY = 350;
var smallX = 350; //缩略图宽度
var smallY = srcY * smallX / srcX;
var viewX = bigX / srcX * smallX; //预览范围
var viewY = bigY / srcY * smallY;
var bl = srcX / smallX;//缩小比例
var border = 1; //边框
window.onload=function (){
head.innerHTML="JS+CSS实现图片放大预览效果,鼠标可以滑动图片任意地方";
smallpic.width=smallX;
smallpic.height=smallY;
bigpic.width=srcX;
bigpic.height=srcY;
view.style.width=viewX;
view.style.height=viewY;
smallbox.style.borderWidth=border;
bigbox.style.borderWidth=border;
if (window.event){
smallbox.style.width=smallpic.offsetWidth+border*2;
smallbox.style.height=smallpic.offsetHeight+border*2;
bigbox.style.width=bigX+border*2;
bigbox.style.height=bigY+border*2;
}else{
smallbox.style.width=smallpic.offsetWidth;
smallbox.style.height=smallpic.offsetHeight;
bigbox.style.width=bigX;
bigbox.style.height=bigY;
}
move(event);
}
function move(e){
var e = window.event?window.event:e;
//alert(e)
var iebug = 0;
if (window.event){
var vX = e.offsetX - viewX/2;
var vY = e.offsetY - viewY/2;
}else{
var vX = e.pageX - viewX/2 - smallbox.offsetLeft - border;
var vY = e.pageY - viewY/2 - smallbox.offsetTop - border;
iebug = 2;
}
if (vX < 0) vX = 0;
if (vY < 0) vY = 0;
if (vX > smallX - viewX - iebug) vX = smallX - viewX - iebug;
if (vY > smallY - viewY - iebug) vY = smallY - viewY - iebug;
bigpico.style.marginLeft = - vX * bl
bigpico.style.marginTop = - vY * bl
view.style.left = vX + smallbox.offsetLeft + border;
view.style.top = vY + smallbox.offsetTop + border;
}
//-->
</script>
<style type="text/css">
<!--
*{padding:0;margin:0}
img{display:block;}
#smallbox{border:1px #c33 solid;float:left;width:0;height:0;overflow:hidden}
#bigbox{border:1px #c33 solid;width:0px;height:0px;float:left;overflow:hidden}
#view{border:1px #ddd solid;width:0px;height:0px;position:absolute}
#head{text-align:center;line-he
[code=HTML][/code]
<html>
<head>
<title>JS+CSS实现图片放大预览效果（js图片放大预览鼠标滑过的任意位置）_365CSS.CN </title>
<script language="JavaScript">
<!--
var srcX = 900; //原图大小,可以任意设置
var srcY = 900;
var bigX = 350; //预览窗大小,可以任意设置
var bigY = 350;
var smallX = 350; //缩略图宽度
var smallY = srcY * smallX / srcX;
var viewX = bigX / srcX * smallX; //预览范围
var viewY = bigY / srcY * smallY;
var bl = srcX / smallX;//缩小比例
var border = 1; //边框
window.onload=function (){
head.innerHTML="JS+CSS实现图片放大预览效果,鼠标可以滑动图片任意地方";
smallpic.width=smallX;
smallpic.height=smallY;
bigpic.width=srcX;
bigpic.height=srcY;
view.style.width=viewX;
view.style.height=viewY;
smallbox.style.borderWidth=border;
bigbox.style.borderWidth=border;
if (window.event){
smallbox.style.width=smallpic.offsetWidth+border*2;
smallbox.style.height=smallpic.offsetHeight+border*2;
bigbox.style.width=bigX+border*2;
bigbox.style.height=bigY+border*2;
}else{
smallbox.style.width=smallpic.offsetWidth;
smallbox.style.height=smallpic.offsetHeight;
bigbox.style.width=bigX;
bigbox.style.height=bigY;
}
move(event);
}
function move(e){
var e = window.event?window.event:e;
//alert(e)
var iebug = 0;
if (window.event){
var vX = e.offsetX - viewX/2;
var vY = e.offsetY - viewY/2;
}else{
var vX = e.pageX - viewX/2 - smallbox.offsetLeft - border;
var vY = e.pageY - viewY/2 - smallbox.offsetTop - border;
iebug = 2;
}
if (vX < 0) vX = 0;
if (vY < 0) vY = 0;
if (vX > smallX - viewX - iebug) vX = smallX - viewX - iebug;
if (vY > smallY - viewY - iebug) vY = smallY - viewY - iebug;
bigpico.style.marginLeft = - vX * bl
bigpico.style.marginTop = - vY * bl
view.style.left = vX + smallbox.offsetLeft + border;
view.style.top = vY + smallbox.offsetTop + border;
}
//-->
</script>
<style type="text/css">
<!--
*{padding:0;margin:0}
img{display:block;}
#smallbox{border:1px #c33 solid;float:left;width:0;height:0;overflow:hidden}
#bigbox{border:1px #c33 solid;width:0px;height:0px;float:left;overflow:hidden}
#view{border:1px #ddd solid;width:0px;height:0px;position:absolute}
#head{text-align:center;line-he
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