DEM拼接的问题

<P>DD</P>
<P>我有几个临近地区的DEM文件，请问各位大侠用什么软件把它们拼接成一个DEM文件，如何拼接啊？</P>

<P>或者直接用ARCGIS的栅格计算器   mosaic([],[]),也能进行DEM的拼接~~~~~~不过最好是用ARCTOOL里面的mosaic</P>

用erdas9.0,mosic

<P>用ERDAS8.7的也可以合并</P>

hao zensjge k

<img src="images/post/smile/dvbbs/em13.gif" />英语看不大懂哈

学习<img src="images/post/smile/dvbbs/em01.gif" />

<P>研究了好久，有了一点进展，处理的数据可能必须是grid格式才行，而且转化成grid格式后，再使用Mosaic To New Raster，依然会有一个错误，如下：</P>
<P>Executing (MosaicToNewRaster_15): MosaicToNewRaster C:\test\calc26;C:\test\calc27 C:\aa 147 12.5 32_BIT_UNSIGNED # 1 FIRST REJECT C:\aa\147<BR>Start Time: Wed Oct 18 15:38:17 2006<BR>Executing (Create Raster Dataset): CreateRasterDataset C:\aa 147 12.5 32_BIT_UNSIGNED # 1 # "PYRAMIDS -1 NEAREST" "128 128" LZ77 # C:\aa\147<BR>Start Time: Wed Oct 18 15:38:17 2006<BR>Executed (Create Raster Dataset) successfully.<BR>End Time: Wed Oct 18 15:38:17 2006 (Elapsed Time: 0.00 secs)<BR>Executing (Mosaic): Mosaic C:\test\calc26;C:\test\calc27 C:\aa\147 FIRST REJECT # # NONE 0 C:\aa\147<BR>Start Time: Wed Oct 18 15:38:18 2006<BR>("esriDataSourcesRaster.RasterDataset") Failed to rename the specified file<BR>Failed to execute (Mosaic).<BR>End Time: Wed Oct 18 15:38:20 2006 (Elapsed Time: 2.00 secs)<BR>Failed to execute (MosaicToNewRaster_15).<BR>End Time: Wed Oct 18 15:38:20 2006 (Elapsed Time: 3.00 secs)<BR></P>
<P>原因可能是数据名称有问题，换用了字母开头的数据名称，问题就解决了</P>
<P>一点小技巧，和大家分享一下</P>

<P>为什么我在执行Mosaic To New Raster时总是出错呢？</P>
<P>提示信息如下：</P>
<P>Executing (MosaicToNewRaster_8): MosaicToNewRaster C:\aa\2.bil;C:\aa\3.bil C:\aa 4.bil # 32_BIT_UNSIGNED # 1 FIRST REJECT C:\aa\4.bil<BR>Start Time: Tue Oct 17 09:59:23 2006<BR>Executing (Create Raster Dataset): CreateRasterDataset C:\aa 4.bil # 32_BIT_UNSIGNED # 1 # "PYRAMIDS -1 NEAREST" "128 128" LZ77 # C:\aa\4.bil<BR>Start Time: Tue Oct 17 09:59:23 2006<BR>Error in executing function<BR>Failed to execute (Create Raster Dataset).<BR>End Time: Tue Oct 17 09:59:23 2006 (Elapsed Time: 0.00 secs)<BR>Failed to execute (MosaicToNewRaster_8).<BR>End Time: Tue Oct 17 09:59:23 2006 (Elapsed Time: 0.00 secs)<BR></P>
<P>哪位高人帮看一下，谢谢啦！</P>

GRID下用MERGE可以合并。