如何访问Raphael中任何元素的id属性 [英] How to access id attribute of any element in Raphael

问题描述

我正在使用Raphael在网站上绘制一些元素。元素包括矩形，线（路径）。我给了path元素一个id，并尝试在该行的onclick事件中访问它。但是当我对id进行警报时，看不到任何东西。以下是代码段

  function createLine（）
 {
 var t = paper.path（ M+ xLink ++ yLink +L+ linkWidth ++ linkHeight）; 
 t.attr（'stroke-width'，'3'）; 
 t.attr（'id'，'你好'）; 
 t.node.onclick = processPathOnClick; 
} 
 
函数processPathOnClick（）
 {
 alert（$（this）.attr（id））; 
} 
  

任何人都可以告诉我上面的代码有什么问题。任何指针都会有所帮助。

谢谢

解决方案

你确定吗？你不想写 $（t.node）.attr（'id'，'Hello'）; 而不是？

更新：有人对这个答案进行了低估。而且我真的觉得有必要指出这种设置id并不是特别好的方式。你最好使用：

  t.node.id ='你好'; 
  

我希望有一种方法可以归功于Juan Mendes，除了赞成他对这个答案的评论。 / p>

I'm using Raphael for drawing some elements on a website. The elements include rectangle, line (path). I have given an id to the path element and trying to access it in the onclick event of that line. but when I do an alert of the id, nothing is visible. Following is the code snippet

function createLine() 
{ 
  var t = paper.path("M" + xLink + " " + yLink +"L" + linkWidth + " " + linkHeight);
  t.attr('stroke-width','3');
  t.attr('id','Hello');
  t.node.onclick = processPathOnClick; 
}

function processPathOnClick() 
{
    alert($(this).attr("id"));
}

Can anyone please tell me what is the problem with the above code. Any pointer will be helpful.

Thanks

解决方案

Are you sure you don't want to write $(t.node).attr('id','Hello'); instead?

Update: someone just downvoted this answer. And I truly feel obligated to point out this way of setting the id isn't particularly good. You would be better off using:

t.node.id = 'Hello';

I wish there was a way to credit Juan Mendes, other than upvoting his comment to this answer.

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