求前辈指点怎么在AE中提取栅格数据！

<p>我想利用VB.NET和AE提取栅格数据（DEM）的行数、列数，原点的坐标、单元的宽、高以及栅格的属性值（栅格中心点的高程值），本人初次接触AE，不知道用哪些接口，哪位高手不吝指教，万分感谢！</p>

For creating QueryFilter have look at the following article. <br/><a href="http://edndoc.esri.com/arcobjects/9.2/Java/java/quickstarts/quickstart_code.htm#15" target="_new">http://edndoc.esri.com/arcobjects/9.2/Java/java/quickstarts/quickstart_code.htm#15</a> <br/><br/>For applying query filter on ITable have a look at the following thread. <br/><a href="http://forums.esri.com/Thread.asp?c=159;f=1706;t=267871;mc=8#825311" target="_new">http://forums.esri.com/Thread.asp?c=159;f=1706;t=267871;mc=8#825311</a>