QueryPixelBlock函数在C＃+AE9.0开发中运行没结果，大家帮帮我吧

<P>QueryPixelBlock方法在tin的坡度分析，tin 转为raster中都要用到，可这个函数运行，还是不运行结果是一样的，raster是空的，没能得到象素值。谁能帮我一下。这是不是9.0的bug，用9.2版本是不是就没问题了。谁在.net用了,帮我一把。</P>

<P>In .Net, the workaround is to use the method IGeoDatabaseBridge2.QueryPixelBlock: <BR></P>
<P>And call IPixelBlock3.set_PixelData before calling IRawPixels.Write. </P>
<P>Hope this helps. </P>
<P>  <BR>  IGeoDatabaseBridge2 pbridge2 = (IGeoDatabaseBridge2) new GeoDatabaseHelperClass();<BR>    pbridge2.QueryPixelBlock(...,(System.Object) pixelData);</P>
<P>And </P>
<P><BR>   pixelBlock3.set_PixelData(plane, (System.Object) pixelData);<BR>   rawPixels.Write(pixelBlockOrigin, (IPixelBlock) pixelBlock3);</P>

<P>In .Net, the workaround is to use the method IGeoDatabaseBridge2.QueryPixelBlock: <BR><a href="http://edndoc.esri.com/arcobjects/9.1/ComponentHelp/esriGeoDatabase/IGeoDatabaseBridge2_QueryPixelBlock.htm" target="_blank" >http://edndoc.esri.com/arcobjects/9.1/ComponentHelp/esriGeoDatabase/IGeoDatabaseBridge2_QueryPixelBlock.htm</A> </P>
<P>And call IPixelBlock3.set_PixelData before calling IRawPixels.Write. </P>
<P>Hope this helps. </P>
<P> <BR>  IGeoDatabaseBridge2 pbridge2 = (IGeoDatabaseBridge2) new GeoDatabaseHelperClass();<BR>    pbridge2.QueryPixelBlock(...,(System.Object) pixelData);</P>
<P>And </P>
<P><BR>   pixelBlock3.set_PixelData(plane, (System.Object) pixelData);<BR>   rawPixels.Write(pixelBlockOrigin, (IPixelBlock) pixelBlock3);</P>
<img src="images/post/smile/dvbbs/em08.gif" />

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<TD class=postvalue>In .Net, the workaround is to use the method IGeoDatabaseBridge2.QueryPixelBlock: <BR><a href="http://edndoc.esri.com/arcobjects/9.1/ComponentHelp/esriGeoDatabase/IGeoDatabaseBridge2_QueryPixelBlock.htm" target="_blank" >http://edndoc.esri.com/arcobjects/9.1/ComponentHelp/esriGeoDatabase/IGeoDatabaseBridge2_QueryPixelBlock.htm</A> <BR><BR>And call IPixelBlock3.set_PixelData before calling IRawPixels.Write. <BR><BR>Hope this helps. <BR><BR> </TD></TR>
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<TD><PRE>IGeoDatabaseBridge2 pbridge2 = (IGeoDatabaseBridge2) new GeoDatabaseHelperClass();
    pbridge2.QueryPixelBlock(...,(System.Object) pixelData);

And


   pixelBlock3.set_PixelData(plane, (System.Object) pixelData);
   rawPixels.Write(pixelBlockOrigin, (IPixelBlock) pixelBlock3);

</PRE> </TD></TR></TABLE>

<P>可能，9.0中的bug很多，建议9.2 </P>

<P>自己顶一下！</P>