![](<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN">
<html><head>
<title>404 Not Found</title>
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<h1>Not Found</h1>
<p>The requested URL /windid/index.php was not found on this server.</p>
<p>Additionally, a 404 Not Found
error was encountered while trying to use an ErrorDocument to handle the request.</p>
<hr>
<address>Apache/2.0.63 (Win32) PHP/5.2.14 Server at www.gisempire.com Port 80</address>
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<P>具体的数据是</P><P>在mapgis软件中数字化得到的等高线线文件（.wl）</P><P>每条线都赋有高程信息</P><P>如何由这个数据生成DEM呢？</P><P&g... 全文
2007-09-21 16:21 来自版块 - 地理信息系统(GIS)
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<P>具体的数据是</P><P>在mapgis软件中数字化得到的等高线线文件（.wl）</P><P>每条线都赋有高程信息</P><P>如何由这个数据生成DEM呢？</P><P&g... 全文
2007-09-21 16:14 来自版块 - Erdas Imagine
![](<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN">
<html><head>
<title>404 Not Found</title>
</head><body>
<h1>Not Found</h1>
<p>The requested URL /windid/index.php was not found on this server.</p>
<p>Additionally, a 404 Not Found
error was encountered while trying to use an ErrorDocument to handle the request.</p>
<hr>
<address>Apache/2.0.63 (Win32) PHP/5.2.14 Server at www.gisempire.com Port 80</address>
</body></html>/avatar/000/08/37/83713.jpg)