请问知道了开始和结束的点的坐标，如何画一条线连接两点？另外如何实现象地图那样的功能？

http://www.walterzorn.com/jsgraphics/jsgraphics_e.htmDraw Line, Ellipse, Oval, Circle, Polyline, Polygon, Triangle with JavaScript

解决方案 »

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用Javascript和DHTML构建的矢量图形库
http://dev.csdn.net/article/26/26606.shtmJavascript:图形库wz_jsgraphics.js
http://zealot.yculblog.com/post.36070.html更多
http://www.walterzorn.com/
没有时间,项目催得紧,就想用javascript来画图。另外javascript能直接在网页上画图么？还是必须用某个控件？
标记　　学习１．http://www.walterzorn.com/jsgraphics/jsgraphics_e.htm
２．http://dev.csdn.net/article/26/26606.shtm
３．http://zealot.yculblog.com/post.36070.html
４．http://www.walterzorn.com/
要用vml的,否则不行啊!!
<HTML>
<HEAD>
<TITLE>饼图</TITLE>
<script>
function DrawPieChart()
{
var totalvalue = value1.value/360 + value2.value/360 + value3.value/360 + value4.value/360;
var per1 = value1.value/totalvalue;
var per2 = value2.value/totalvalue;
var per3 = value3.value/totalvalue;
var per4 = value4.value/totalvalue; var per12 = per1 + per2;
var per123 = per1 + per2 + per3;Chart.innerHTML = "<OBJECT ID='PieChart' CLASSID='CLSID:369303C2-D7AC-11D0-89D5-00A0C90833E6' STYLE='position:relative;top:0;left:0;width:400;height:400'><PARAM NAME='Line0001' VALUE='SetLineColor(255, 0, 127)'><PARAM NAME='Line0002' VALUE='SetFillStyle(1)'><PARAM NAME='Line0003' VALUE='SetFillColor(0, 255, 80)'><PARAM NAME='Line0004' VALUE='Pie(-100, -100, 200, 200, 0, "+ per1 +", 0)'><PARAM NAME='Line0005' VALUE='SetFillStyle(1)'><PARAM NAME='Line0006' VALUE='SetFillColor(0, 0, 255)'><PARAM NAME='Line0007' VALUE='Pie(-100, -100, 200, 200, "+ per1 + ", " + per2 + ", 0)'><PARAM NAME='Line0008' VALUE='SetFillStyle(1)'><PARAM NAME='Line0009' VALUE='SetFillColor(0, 128, 128)'><PARAM NAME='Line0010' VALUE='Pie(-100, -100, 200, 200, "+per12+","+per3+", 0)'><PARAM NAME='Line0011' VALUE='SetFillStyle(1)'><PARAM NAME='Line0012' VALUE='SetFillColor(255, 0, 0)'><PARAM NAME='Line0013' VALUE='Pie(-100, -100, 200, 200, "+per123+","+per4+", 0)'></OBJECT>"}
</script>
<style>

</style>
</HEAD>
<BODY>
<table border=1 width=100%>
<tr><td id="Chart" width=50% height=400 align=center>
准备画图</td>
<td width=50%>
<p align=center>
输入4个数<br>
<input id="value1" type=text size=6 value=0>
<input id="value2" type=text size=6 value=0>
<input id="value3" type=text size=6 value=0>
<input id="value4" type=text size=6 value=0>
</p>
<p align=center>
<input type=button onclick="DrawPieChart()" value="画饼图">
</p>
</td>
</tr>
</table>
</BODY>
</HTML>看看这个对你有帮助吗?
<HTML xmlns:v>
<HEAD>
<META http-equiv="Content-Type" content="text/html; Charset=gb2312">
<TITLE>vml</TITLE>
<STYLE>
body{}
a{}
a:hover{}
v\:*{behavior:url(#default#VML);}
</STYLE>
</HEAD>
<BODY bgcolor="" text="" topmargin="" leftmargin="">
<BASE target=""> <v:Line strokeweight='2' to='400,0'>
<v:Stroke dashstyle='longdashdot' endarrow='open' id='style1'/>
</v:line> <p> <v:Line strokeweight='2' to='400,0'>
<v:Stroke endarrow='open' linestyle='thinthick ' id='style2'/>
</v:line> <script>
var array1=new Array('dash','dashdot','dot','longdash','longdashdot','shortdash','shortdashdot','shortdashdotdot','longdashdotdot','shortdot')
var array2=new Array('block','classic','diamond','open','oval')
setInterval('style1.dashstyle=array1[Math.round(Math.random()*9)]',100)
setInterval('style2.endarrow=array2[Math.round(Math.random()*5)];style2.startarrow=array2[Math.round(Math.random()*5)]',100)
</script> </BODY>
</HTML>
用vml吧，不过需要学习一段时间
一个简单例子
<HTML xmlns:v>
<HEAD>
<STYLE>
v\:*{behavior:url(#default#VML);}
</STYLE>
</HEAD>
<BODY >
<v:line id=fyw0 style="Z-INDEX:1001;LEFT:454px;POSITION:absolute;TOP:127px" from="0,0" to="-42.75pt,143.25pt" strokecolor="black" strokeweight="1pt">
</v:line>
</BODY>