Welcome to OStack Knowledge Sharing Community for programmer and developer-Open, Learning and Share
Welcome To Ask or Share your Answers For Others

Categories

0 votes
553 views
in Technique[技术] by (71.8m points)

jquery - add a new line in svg, bug cannot see the line

I want to add a new line into the svg when, the add button is pressed, a new line should be added into the svg I can sure the line is added in the elements, but why it is not displayed on the screen?

<!DOCTYPE html>
<html>
<head>
<style type="text/css">
#map
{
    border:1px solid #000;
}
line
{
    stroke:rgb(0,0,0);
    stroke-width:3;
}
</style>
<script src="http://code.jquery.com/jquery-1.6.4.min.js"></script>
<script type="text/javascript">
jQuery(document).ready(function(){
    $("#add").click(function(){
        var newLine=$('<line id="line2" x1="0" y1="0" x2="300" y2="300" />');
        $("#map").append(newLine);
    });
})
</script>
</head>

<body>

<h2 id="status">
0, 0
</h2>
<svg id="map" width="800" height="600" version="1.1" xmlns="http://www.w3.org/2000/svg">
<line id="line" x1="50" y1="0" x2="200" y2="300"/>
</svg>
<button id="add">add</button>



</body>
</html>
See Question&Answers more detail:os

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome To Ask or Share your Answers For Others

1 Answer

0 votes
by (71.8m points)

In order to add elements to an SVG object those elements have to be created in the SVG namespace. As jQuery doesn't allow you to do this at present (AFAIK) you can't use jQuery to create the element. This will work:

$("#add").click(function(){
    var newLine = document.createElementNS('http://www.w3.org/2000/svg','line');
    newLine.setAttribute('id','line2');
    newLine.setAttribute('x1','0');
    newLine.setAttribute('y1','0');
    newLine.setAttribute('x2','300');
    newLine.setAttribute('y2','300');
    $("#map").append(newLine);
});

Here's a working example.


与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome to OStack Knowledge Sharing Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question

Just Browsing Browsing

[5] html - How to create even cell spacing within a

2.1m questions

2.1m answers

60 comments

56.8k users

...