日期:2014-05-18  浏览次数:20540 次

稀有js消除连线问题???????????????(来着有分,少了再加;提供有效帮助者高分!)


如图:

拖动图片时,连线重新创建

现在需要把原来的旧连线擦除掉.
该如何实现?
求各位帮帮忙,有什么好的办法

提供例子是最好啦! 需要的是用js实现

现在原有有关系的图片坐标都可以得到

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牛,

关注
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Study
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参考:
http://www.walterzorn.com/jsgraphics/jsgraphics_e.htm
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给我个邮箱我给你发过切 太多了

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C# code
http://download.csdn.net/source/590141

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<HTML>
<HEAD>
<TITLE>New Document </TITLE> 
<script Language="javascript">
var x,y,divLeft,divTop; 
var isMove = false; 
var html = ""; 
function MouseDown(obj) 

isMove = true; 
x = event.clientX; 
y = event.clientY; 
divLeft = obj.offsetLeft; 
divTop = obj.offsetTop; 

function MouseMove(obj) 

if(isMove) 

obj.style.left = divLeft + event.clientX - x; 
obj.style.top = divTop + event.clientY - y; 


function MouseUp(obj) 

isMove = false; 
var a = parseInt(document.getElementById("div1").style.left); 
var b = parseInt(document.getElementById("div1").style.top); 
var c = parseInt(document.getElementById("div2").style.left); 
var d = parseInt(document.getElementById("div2").style.top);
var e = parseInt(document.getElementById("div3").style.left); 
var f = parseInt(document.getElementById("div3").style.top);
html =" <div id = 'div1' style='border:1px solid gray;width:42px;height:39px;position:absolute;left:"+a+"px;top:"+b+"px' onmousedown='MouseDown(this)' onmousemove='MouseMove(this)' onmouseup='MouseUp(this)'>a </div>"; 
line(a,b,c,d,"0000dd"); 
html += " <div id = 'div2' style='border:1px solid gray;width:45px;height:44px;position:absolute;left:"+c+"px;top:"+d+"px' onmousedown='MouseDown(this)' onmousemove=' MouseMove(this)' onmouseup='MouseUp(this)'>a </div>"; 
line(a,b,e,f,"0000dd");
html += " <div id = 'div3' style='border:1px solid gray;width:45px;height:44px;position:absolute;left:"+e+"px;top:"+f+"px' onmousedown='MouseDown(this)' onmousemove='MouseMove(this)' onmouseup='MouseUp(this)'>a </div>"; 
line(c,d,e,f,"0000dd");
document.body.innerHTML=html 
}
function a(x,y,color)

html +=" <img border='0' style='position:absolute;left:"+(x+20)+";top:"+(y+20)+";background-color:"+color+"'src='px.gif' width=1 height=1>"; 
}
function line(x1,y1,x2,y2,color)
{
var tmp
if(x1>=x2)
{
tmp=x1;
x1=x2;
x2=tmp;
tmp=y1;
y1=y2;
y2=tmp;
}
for(var i=x1;i <=x2;i++)
{
x =i;
y =(y2-y1)/(x2-x1)*(x-x1)+y1;
a(x,y,color);
}

function show() 

html =" <div id = 'div1' style='border:1px solid gray;width:42px;height:39px;position:absolute;left:1px;top:1px' onmousedown='MouseDown(this)' onmousemove='MouseMove(this)' o